/* tc-m68k.c All the m68020 specific stuff in one convenient, huge,
slow to compile, easy to find file.
-
+
Copyright (C) 1987, 1991, 1992 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <ctype.h>
-
+#define NO_RELOC 0
#include "as.h"
#include "obstack.h"
*/
enum operand_type {
- IMMED = 1,
- DREG,
- AREG,
- AINDR,
- ADEC,
- AINC,
- AOFF,
- AINDX,
- APODX,
- AMIND,
- APRDX,
- ABSL,
- MSCR,
- REGLST,
+ IMMED = 1,
+ DREG,
+ AREG,
+ AINDR,
+ ADEC,
+ AINC,
+ AOFF,
+ AINDX,
+ APODX,
+ AMIND,
+ APRDX,
+ ABSL,
+ MSCR,
+ REGLST,
};
struct m68k_exp {
- char *e_beg;
- char *e_end;
- expressionS e_exp;
- short e_siz; /* 0== default 1==short/byte 2==word 3==long */
+ char *e_beg;
+ char *e_end;
+ expressionS e_exp;
+ short e_siz; /* 0== default 1==short/byte 2==word 3==long */
};
/* DATA and ADDR have to be contiguous, so that reg-DATA gives 0-7==data reg,
8-15==addr reg for operands that take both types */
enum _register {
- DATA = 1, /* 1- 8 == data registers 0-7 */
- DATA0 = DATA,
- DATA1,
- DATA2,
- DATA3,
- DATA4,
- DATA5,
- DATA6,
- DATA7,
-
- ADDR,
- ADDR0 = ADDR,
- ADDR1,
- ADDR2,
- ADDR3,
- ADDR4,
- ADDR5,
- ADDR6,
- ADDR7,
-
- /* Note that COPNUM==processor #1 -- COPNUM+7==#8, which stores as 000 */
- /* I think. . . */
-
- SP = ADDR7,
-
- FPREG, /* Eight FP registers */
- FP0 = FPREG,
- FP1,
- FP2,
- FP3,
- FP4,
- FP5,
- FP6,
- FP7,
- COPNUM = (FPREG+8), /* Co-processor #1-#8 */
- COP0 = COPNUM,
- COP1,
- COP2,
- COP3,
- COP4,
- COP5,
- COP6,
- COP7,
- PC, /* Program counter */
- ZPC, /* Hack for Program space, but 0 addressing */
- SR, /* Status Reg */
- CCR, /* Condition code Reg */
-
- /* These have to be in order for the movec instruction to work. */
- USP, /* User Stack Pointer */
- ISP, /* Interrupt stack pointer */
- SFC,
- DFC,
- CACR,
- VBR,
- CAAR,
- MSP,
- ITT0,
- ITT1,
- DTT0,
- DTT1,
- MMUSR,
- TC,
- SRP,
- URP,
- /* end of movec ordering constraints */
-
- FPI,
- FPS,
- FPC,
-
- DRP,
- CRP,
- CAL,
- VAL,
- SCC,
- AC,
- BAD,
- BAD0 = BAD,
- BAD1,
- BAD2,
- BAD3,
- BAD4,
- BAD5,
- BAD6,
- BAD7,
- BAC,
- BAC0 = BAC,
- BAC1,
- BAC2,
- BAC3,
- BAC4,
- BAC5,
- BAC6,
- BAC7,
- PSR,
- PCSR,
-
- IC, /* instruction cache token */
- DC, /* data cache token */
- NC, /* no cache token */
- BC, /* both caches token */
-
+ DATA = 1, /* 1- 8 == data registers 0-7 */
+ DATA0 = DATA,
+ DATA1,
+ DATA2,
+ DATA3,
+ DATA4,
+ DATA5,
+ DATA6,
+ DATA7,
+
+ ADDR,
+ ADDR0 = ADDR,
+ ADDR1,
+ ADDR2,
+ ADDR3,
+ ADDR4,
+ ADDR5,
+ ADDR6,
+ ADDR7,
+
+ /* Note that COPNUM==processor #1 -- COPNUM+7==#8, which stores as 000 */
+ /* I think. . . */
+
+ SP = ADDR7,
+
+ FPREG, /* Eight FP registers */
+ FP0 = FPREG,
+ FP1,
+ FP2,
+ FP3,
+ FP4,
+ FP5,
+ FP6,
+ FP7,
+ COPNUM = (FPREG+8), /* Co-processor #1-#8 */
+ COP0 = COPNUM,
+ COP1,
+ COP2,
+ COP3,
+ COP4,
+ COP5,
+ COP6,
+ COP7,
+ PC, /* Program counter */
+ ZPC, /* Hack for Program space, but 0 addressing */
+ SR, /* Status Reg */
+ CCR, /* Condition code Reg */
+
+ /* These have to be in order for the movec instruction to work. */
+ USP, /* User Stack Pointer */
+ ISP, /* Interrupt stack pointer */
+ SFC,
+ DFC,
+ CACR,
+ VBR,
+ CAAR,
+ MSP,
+ ITT0,
+ ITT1,
+ DTT0,
+ DTT1,
+ MMUSR,
+ TC,
+ SRP,
+ URP,
+ /* end of movec ordering constraints */
+
+ FPI,
+ FPS,
+ FPC,
+
+ DRP,
+ CRP,
+ CAL,
+ VAL,
+ SCC,
+ AC,
+ BAD,
+ BAD0 = BAD,
+ BAD1,
+ BAD2,
+ BAD3,
+ BAD4,
+ BAD5,
+ BAD6,
+ BAD7,
+ BAC,
+ BAC0 = BAC,
+ BAC1,
+ BAC2,
+ BAC3,
+ BAC4,
+ BAC5,
+ BAC6,
+ BAC7,
+ PSR,
+ PCSR,
+
+ IC, /* instruction cache token */
+ DC, /* data cache token */
+ NC, /* no cache token */
+ BC, /* both caches token */
+
};
/* Internal form of an operand. */
struct m68k_op {
- char *error; /* Couldn't parse it */
- enum operand_type mode; /* What mode this instruction is in. */
- enum _register reg; /* Base register */
- struct m68k_exp *con1;
- int ireg; /* Index register */
- int isiz; /* 0==unspec 1==byte(?) 2==short 3==long */
- int imul; /* Multipy ireg by this (1,2,4,or 8) */
- struct m68k_exp *con2;
+ char *error; /* Couldn't parse it */
+ enum operand_type mode; /* What mode this instruction is in. */
+ enum _register reg; /* Base register */
+ struct m68k_exp *con1;
+ int ireg; /* Index register */
+ int isiz; /* 0==unspec 1==byte(?) 2==short 3==long */
+ int imul; /* Multipy ireg by this (1,2,4,or 8) */
+ struct m68k_exp *con2;
};
/* internal form of a 68020 instruction */
struct m68k_it {
- char *error;
- char *args; /* list of opcode info */
- int numargs;
-
- int numo; /* Number of shorts in opcode */
- short opcode[11];
-
- struct m68k_op operands[6];
-
- int nexp; /* number of exprs in use */
- struct m68k_exp exprs[4];
-
- int nfrag; /* Number of frags we have to produce */
- struct {
- int fragoff; /* Where in the current opcode[] the frag ends */
- symbolS *fadd;
- long foff;
- int fragty;
- } fragb[4];
-
- int nrel; /* Num of reloc strucs in use */
- struct {
- int n;
- symbolS *add,
- *sub;
- long off;
- char wid;
- char pcrel;
- } reloc[5]; /* Five is enough??? */
+ char *error;
+ char *args; /* list of opcode info */
+ int numargs;
+
+ int numo; /* Number of shorts in opcode */
+ short opcode[11];
+
+ struct m68k_op operands[6];
+
+ int nexp; /* number of exprs in use */
+ struct m68k_exp exprs[4];
+
+ int nfrag; /* Number of frags we have to produce */
+ struct {
+ int fragoff; /* Where in the current opcode[] the frag ends */
+ symbolS *fadd;
+ long foff;
+ int fragty;
+ } fragb[4];
+
+ int nrel; /* Num of reloc strucs in use */
+ struct {
+ int n;
+ symbolS *add,
+ *sub;
+ long off;
+ char wid;
+ char pcrel;
+ } reloc[5]; /* Five is enough??? */
};
#define cpu_of_arch(x) ((x) & m68000up)
the_ins.reloc[z].n+=2;\
the_ins.opcode[opcode->m_codenum]=w;\
the_ins.numo++;\
- }
+ }
#define add_exp(beg,end) (\
the_ins.reloc[the_ins.nrel].off=offs((exp));\
the_ins.reloc[the_ins.nrel].wid=width;\
the_ins.reloc[the_ins.nrel++].pcrel=pc_rel;\
- }
+ }
#define add_frag(add,off,type) {\
the_ins.fragb[the_ins.nfrag].fragoff=the_ins.numo;\
the_ins.fragb[the_ins.nfrag].fadd=add;\
the_ins.fragb[the_ins.nfrag].foff=off;\
the_ins.fragb[the_ins.nfrag++].fragty=type;\
- }
+ }
#define isvar(exp) ((exp) && (adds(exp) || subs(exp)))
struct m68k_incant {
- char *m_operands;
- unsigned long m_opcode;
- short m_opnum;
- short m_codenum;
- enum m68k_architecture m_arch;
- struct m68k_incant *m_next;
+ char *m_operands;
+ unsigned long m_opcode;
+ short m_opnum;
+ short m_codenum;
+ enum m68k_architecture m_arch;
+ struct m68k_incant *m_next;
};
#define getone(x) ((((x)->m_opcode)>>16)&0xffff)
*/
const relax_typeS
md_relax_table[] = {
- { 1, 1, 0, 0 }, /* First entries aren't used */
-{ 1, 1, 0, 0 }, /* For no good reason except */
-{ 1, 1, 0, 0 }, /* that the VAX doesn't either */
-{ 1, 1, 0, 0 },
-
-{ (127), (-128), 0, TAB(BRANCH,SHORT)},
-{ (32767), (-32768), 2, TAB(BRANCH,LONG) },
-{ 0, 0, 4, 0 },
-{ 1, 1, 0, 0 },
-
-{ 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE */
-{ (32767), (-32768), 2, TAB(FBRANCH,LONG)},
-{ 0, 0, 4, 0 },
-{ 1, 1, 0, 0 },
-
-{ 1, 1, 0, 0 }, /* PCREL doesn't come BYTE */
-{ (32767), (-32768), 2, TAB(PCREL,LONG)},
-{ 0, 0, 4, 0 },
-{ 1, 1, 0, 0 },
-
-{ (127), (-128), 0, TAB(BCC68000,SHORT)},
-{ (32767), (-32768), 2, TAB(BCC68000,LONG) },
-{ 0, 0, 6, 0 }, /* jmp long space */
-{ 1, 1, 0, 0 },
-
-{ 1, 1, 0, 0 }, /* DBCC doesn't come BYTE */
-{ (32767), (-32768), 2, TAB(DBCC,LONG) },
-{ 0, 0, 10, 0 }, /* bra/jmp long space */
-{ 1, 1, 0, 0 },
-
-{ 1, 1, 0, 0 }, /* PCLEA doesn't come BYTE */
-{ 32767, -32768, 2, TAB(PCLEA,LONG) },
-{ 0, 0, 6, 0 },
-{ 1, 1, 0, 0 },
-
-};
+ { 1, 1, 0, 0 }, /* First entries aren't used */
+ { 1, 1, 0, 0 }, /* For no good reason except */
+ { 1, 1, 0, 0 }, /* that the VAX doesn't either */
+ { 1, 1, 0, 0 },
+
+ { (127), (-128), 0, TAB(BRANCH,SHORT)},
+ { (32767), (-32768), 2, TAB(BRANCH,LONG) },
+ { 0, 0, 4, 0 },
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE */
+ { (32767), (-32768), 2, TAB(FBRANCH,LONG)},
+ { 0, 0, 4, 0 },
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* PCREL doesn't come BYTE */
+ { (32767), (-32768), 2, TAB(PCREL,LONG)},
+ { 0, 0, 4, 0 },
+ { 1, 1, 0, 0 },
+
+ { (127), (-128), 0, TAB(BCC68000,SHORT)},
+ { (32767), (-32768), 2, TAB(BCC68000,LONG) },
+ { 0, 0, 6, 0 }, /* jmp long space */
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE */
+ { (32767), (-32768), 2, TAB(DBCC,LONG) },
+ { 0, 0, 10, 0 }, /* bra/jmp long space */
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* PCLEA doesn't come BYTE */
+ { 32767, -32768, 2, TAB(PCLEA,LONG) },
+ { 0, 0, 6, 0 },
+ { 1, 1, 0, 0 },
+
+ };
/* These are the machine dependent pseudo-ops. These are included so
the assembler can work on the output from the SUN C compiler, which
Integer arg to pass to the function
*/
const pseudo_typeS md_pseudo_table[] = {
-{ "data1", s_data1, 0 },
-{ "data2", s_data2, 0 },
-{ "bss", s_bss, 0 },
-{ "even", s_even, 0 },
-{ "skip", s_space, 0 },
-{ "proc", s_proc, 0 },
-{ 0, 0, 0 }
+ { "data1", s_data1, 0 },
+ { "data2", s_data2, 0 },
+ { "bss", s_bss, 0 },
+ { "even", s_even, 0 },
+ { "skip", s_space, 0 },
+ { "proc", s_proc, 0 },
+ { 0, 0, 0 }
};
#define isubyte(x) ((x)>=0 && (x)<=255)
#define issword(x) ((x)>=-32768 && (x)<=32767)
#define isuword(x) ((x)>=0 && (x)<=65535)
-
+
#define isbyte(x) ((x)>=-128 && (x)<=255)
#define isword(x) ((x)>=-32768 && (x)<=65535)
#define islong(x) (1)
-
- extern char *input_line_pointer;
+
+extern char *input_line_pointer;
enum {
- FAIL = 0,
- OK = 1,
+ FAIL = 0,
+ OK = 1,
};
/* JF these tables here are for speed at the expense of size */
static char mklower_table[256];
#define mklower(c) (mklower_table[(unsigned char)(c)])
- static char notend_table[256];
+static char notend_table[256];
static char alt_notend_table[256];
#define notend(s) ( !(notend_table[(unsigned char)(*s)] || (*s==':' &&\
alt_notend_table[(unsigned char)(s[1])])))
#if 0
#define mklower(c) (isupper(c) ? tolower(c) : c)
#endif
-
-
- /* JF modified this to handle cases where the first part of a symbol name
- looks like a register */
-
- /*
- * m68k_reg_parse() := if it looks like a register, return it's token &
- * advance the pointer.
- */
-
- enum _register m68k_reg_parse(ccp)
+
+
+/* JF modified this to handle cases where the first part of a symbol name
+ looks like a register */
+
+/*
+ * m68k_reg_parse() := if it looks like a register, return it's token &
+ * advance the pointer.
+ */
+
+enum _register m68k_reg_parse(ccp)
register char **ccp;
{
-#ifndef MAX_REG_NAME_LEN
-#define MAX_REG_NAME_LEN (6)
-#endif /* MAX_REG_NAME_LEN */
- register char c[MAX_REG_NAME_LEN];
- char *p, *q;
- register int n = 0,
- ret = FAIL;
-
- c[0] = mklower(ccp[0][0]);
-#ifdef REGISTER_PREFIX
- if (c[0] != REGISTER_PREFIX) {
- return(FAIL);
- } /* need prefix */
-#endif
+ char *start = *ccp;
+
+ if (isalpha(*start) && is_name_beginner(*start))
+ {
+ char c;
+ char *p = start;
+ symbolS *symbolP;
- for (p = c, q = ccp[0]; p < c + MAX_REG_NAME_LEN; ++p, ++q)
+ while (is_part_of_name(c = *p++))
+ ;
+ * -- p = 0;
+ symbolP = symbol_find(start);
+ *p = c;
+
+ if (symbolP && S_GET_SEGMENT(symbolP) == SEG_REGISTER)
{
- if (*q == 0)
- {
- *p = 0;
- break;
- }
- else
- *p = mklower(*q);
- } /* downcase */
-
- switch(c[0]) {
- case 'a':
- if(c[1]>='0' && c[1]<='7') {
- n=2;
- ret=ADDR+c[1]-'0';
- }
-#ifndef NO_68851
- else if (c[1] == 'c') {
- n = 2;
- ret = AC;
- }
-#endif
- break;
-#ifndef NO_68851
- case 'b':
- if (c[1] == 'a') {
- if (c[2] == 'd') {
- if (c[3] >= '0' && c[3] <= '7') {
- n = 4;
- ret = BAD + c[3] - '0';
- }
- } /* BAD */
- if (c[2] == 'c') {
- if (c[3] >= '0' && c[3] <= '7') {
- n = 4;
- ret = BAC + c[3] - '0';
- }
- } /* BAC */
- } else if (c[1] == 'c') {
- n = 2;
- ret = BC;
- } /* BC */
- break;
-#endif
- case 'c':
-#ifndef NO_68851
- if (c[1] == 'a' && c[2] == 'l') {
- n = 3;
- ret = CAL;
- } else
-#endif
- /* This supports both CCR and CC as the ccr reg. */
- if(c[1]=='c' && c[2]=='r') {
- n=3;
- ret = CCR;
- } else if(c[1]=='c') {
- n=2;
- ret = CCR;
- } else if(c[1]=='a' && (c[2]=='a' || c[2]=='c') && c[3]=='r') {
- n=4;
- ret = c[2]=='a' ? CAAR : CACR;
- }
-#ifndef NO_68851
- else if (c[1] == 'r' && c[2] == 'p') {
- n = 3;
- ret = (CRP);
- }
-#endif
- break;
- case 'd':
- if (c[1] >= '0' && c[1] <= '7') {
- n = 2;
- ret = DATA + c[1] - '0';
- } else if (c[1] == 'f' && c[2] == 'c') {
- n = 3;
- ret = DFC;
- } else if (c[1] == 'c') {
- n = 2;
- ret = DC;
- } else if (c[1] == 't' && c[2] == 't') {
- if ('0' <= c[3] && c[3] <= '1') {
- n = 4;
- ret = DTT0 + (c[3] - '0');
- } /* DTT[01] */
- }
-#ifndef NO_68851
- else if (c[1] == 'r' && c[2] == 'p') {
- n = 3;
- ret = (DRP);
- }
-#endif
- break;
- case 'f':
- if(c[1]=='p') {
- if(c[2]>='0' && c[2]<='7') {
- n=3;
- ret = FPREG+c[2]-'0';
- if(c[3]==':')
- ccp[0][3]=',';
- } else if(c[2]=='i') {
- n=3;
- ret = FPI;
- } else if(c[2]=='s') {
- n= (c[3] == 'r' ? 4 : 3);
- ret = FPS;
- } else if(c[2]=='c') {
- n= (c[3] == 'r' ? 4 : 3);
- ret = FPC;
- }
- }
- break;
- case 'i':
- if (c[1] == 's' && c[2] == 'p') {
- n = 3;
- ret = ISP;
- } else if (c[1] == 'c') {
- n = 2;
- ret = IC;
- } else if (c[1] == 't' && c[2] == 't') {
- if ('0' <= c[3] && c[3] <= '1') {
- n = 4;
- ret = ITT0 + (c[3] - '0');
- } /* ITT[01] */
- }
- break;
- case 'm':
- if (c[1] == 's' && c[2] == 'p') {
- n = 3;
- ret = MSP;
- } else if (c[1] == 'm' && c[2] == 'u' && c[3] == 's' && c[4] == 'r') {
- n = 5;
- ret = MMUSR;
- }
- break;
- case 'n':
- if (c[1] == 'c') {
- n = 2;
- ret = NC;
- }
- break;
- case 'p':
- if(c[1]=='c') {
-#ifndef NO_68851
- if(c[2] == 's' && c[3]=='r') {
- n=4;
- ret = (PCSR);
- } else
-#endif
- {
- n=2;
- ret = PC;
- }
- }
-#ifndef NO_68851
- else if (c[1] == 's' && c[2] == 'r') {
- n = 3;
- ret = (PSR);
- }
-#endif
- break;
- case 's':
-#ifndef NO_68851
- if (c[1] == 'c' && c[2] == 'c') {
- n = 3;
- ret = (SCC);
- } else
-#endif
- if (c[1] == 'r') {
- if (c[2] == 'p') {
- n = 3;
- ret = SRP;
- } else {
- n = 2;
- ret = SR;
- } /* srp else sr */
- } else if (c[1] == 'p') {
- n = 2;
- ret = SP;
- } else if (c[1] == 'f' && c[2] == 'c') {
- n = 3;
- ret = SFC;
- }
- break;
- case 't':
- if (c[1] == 'c') {
- n = 2;
- ret = TC;
- }
- break;
- case 'u':
- if (c[1] == 's' && c[2] == 'p') {
- n=3;
- ret = USP;
- } else if (c[1] == 'r' && c[2] == 'p') {
- n = 3;
- ret = URP;
- }
- break;
- case 'v':
-#ifndef NO_68851
- if (c[1] == 'a' && c[2] == 'l') {
- n = 3;
- ret = (VAL);
- } else
-#endif
- if(c[1]=='b' && c[2]=='r') {
- n=3;
- ret = VBR;
- }
- break;
- case 'z':
- if(c[1]=='p' && c[2]=='c') {
- n=3;
- ret = ZPC;
- }
- break;
- default:
- break;
+ *ccp = p;
+ return S_GET_VALUE(symbolP);
}
- if(n) {
-#ifdef REGISTER_PREFIX
- n++;
-#endif
- if(isalnum(ccp[0][n]) || ccp[0][n]=='_')
- ret=FAIL;
- else
- ccp[0]+=n;
- } else
- ret = FAIL;
- return ret;
+ }
+ return FAIL;
+
+
}
#define SKIP_WHITE() { str++; if(*str==' ') str++;}
char *str;
register struct m68k_op *opP;
{
- char *strend;
- long i;
- char *parse_index();
-
- if (*str==' ') {
- str++;
- } /* Find the beginning of the string */
-
- if(!*str) {
- opP->error="Missing operand";
- return FAIL;
- } /* Out of gas */
-
- for(strend = str; *strend; strend++) ;;
-
- --strend;
-
- if(*str=='#') {
- str++;
- opP->con1=add_exp(str,strend);
- opP->mode=IMMED;
- return OK;
- } /* Guess what: A constant. Shar and enjoy */
-
- i = m68k_reg_parse(&str);
-
- /* is a register, is exactly a register, and is followed by '@' */
-
- if((i==FAIL || *str!='\0') && *str!='@') {
- char *stmp;
+ char *strend;
+ long i;
+ char *parse_index();
- if(i!=FAIL && (*str=='/' || *str=='-')) {
- opP->mode=REGLST;
- return(get_regs(i,str,opP));
- }
- if ((stmp=strchr(str,'@')) != '\0') {
- opP->con1=add_exp(str,stmp-1);
- if(stmp==strend) {
- opP->mode=AINDX;
- return(OK);
- }
-
- if ((current_architecture & m68020up) == 0) {
- return(FAIL);
- } /* if target is not a '20 or better */
-
- stmp++;
- if(*stmp++!='(' || *strend--!=')') {
- opP->error="Malformed operand";
- return(FAIL);
- }
- i=try_index(&stmp,opP);
- opP->con2=add_exp(stmp,strend);
-
- if (i == FAIL) {
- opP->mode=AMIND;
- } else {
- opP->mode=APODX;
- }
- return(OK);
- } /* if there's an '@' */
- opP->mode = ABSL;
- opP->con1 = add_exp(str,strend);
- return(OK);
- } /* not a register, not exactly a register, or no '@' */
-
- opP->reg=i;
-
- if (*str=='\0') {
- if(i>=DATA+0 && i<=DATA+7)
- opP->mode=DREG;
- else if(i>=ADDR+0 && i<=ADDR+7)
- opP->mode=AREG;
- else
- opP->mode=MSCR;
- return OK;
- }
-
- if((i<ADDR+0 || i>ADDR+7) && i!=PC && i!=ZPC && i!=FAIL) { /* Can't indirect off non address regs */
- opP->error="Invalid indirect register";
- return FAIL;
- }
- know(*str == '@');
-
- str++;
- switch(*str) {
- case '\0':
- opP->mode=AINDR;
- return OK;
- case '-':
- opP->mode=ADEC;
- return OK;
- case '+':
- opP->mode=AINC;
- return OK;
- case '(':
- str++;
- break;
- default:
- opP->error="Junk after indirect";
- return FAIL;
- }
- /* Some kind of indexing involved. Lets find out how bad it is */
- i=try_index(&str,opP);
- /* Didn't start with an index reg, maybe its offset or offset,reg */
- if(i==FAIL) {
- char *beg_str;
+ if (*str==' ') {
+ str++;
+ } /* Find the beginning of the string */
- beg_str=str;
- for(i=1;i;) {
- switch(*str++) {
- case '\0':
- opP->error="Missing )";
+ if(!*str) {
+ opP->error="Missing operand";
return FAIL;
- case ',': i=0; break;
- case '(': i++; break;
- case ')': --i; break;
- }
+ } /* Out of gas */
+
+ for(strend = str; *strend; strend++) ;;
+
+ --strend;
+
+ if(*str=='#') {
+ str++;
+ opP->con1=add_exp(str,strend);
+ opP->mode=IMMED;
+ return OK;
+ } /* Guess what: A constant. Shar and enjoy */
+
+ i = m68k_reg_parse(&str);
+
+ /* is a register, is exactly a register, and is followed by '@' */
+
+ if((i==FAIL || *str!='\0') && *str!='@') {
+ char *stmp;
+
+ if(i!=FAIL && (*str=='/' || *str=='-')) {
+ opP->mode=REGLST;
+ return(get_regs(i,str,opP));
+ }
+ if ((stmp=strchr(str,'@')) != '\0') {
+ opP->con1=add_exp(str,stmp-1);
+ if(stmp==strend) {
+ opP->mode=AINDX;
+ return(OK);
+ }
+
+ if ((current_architecture & m68020up) == 0) {
+ return(FAIL);
+ } /* if target is not a '20 or better */
+
+ stmp++;
+ if(*stmp++!='(' || *strend--!=')') {
+ opP->error="Malformed operand";
+ return(FAIL);
+ }
+ i=try_index(&stmp,opP);
+ opP->con2=add_exp(stmp,strend);
+
+ if (i == FAIL) {
+ opP->mode=AMIND;
+ } else {
+ opP->mode=APODX;
+ }
+ return(OK);
+ } /* if there's an '@' */
+ opP->mode = ABSL;
+ opP->con1 = add_exp(str,strend);
+ return(OK);
+ } /* not a register, not exactly a register, or no '@' */
+
+ opP->reg=i;
+
+ if (*str=='\0') {
+ if(i>=DATA+0 && i<=DATA+7)
+ opP->mode=DREG;
+ else if(i>=ADDR+0 && i<=ADDR+7)
+ opP->mode=AREG;
+ else
+ opP->mode=MSCR;
+ return OK;
}
- /* if(str[-3]==':') {
- int siz;
-
- switch(str[-2]) {
- case 'b':
- case 'B':
- siz=1;
- break;
- case 'w':
- case 'W':
- siz=2;
- break;
- case 'l':
- case 'L':
- siz=3;
- break;
- default:
- opP->error="Specified size isn't :w or :l";
- return FAIL;
- }
- opP->con1=add_exp(beg_str,str-4);
- opP->con1->e_siz=siz;
- } else */
- opP->con1=add_exp(beg_str,str-2);
- /* Should be offset,reg */
- if(str[-1]==',') {
- i=try_index(&str,opP);
- if(i==FAIL) {
- opP->error="Malformed index reg";
+
+ if((i<ADDR+0 || i>ADDR+7) && i!=PC && i!=ZPC && i!=FAIL) { /* Can't indirect off non address regs */
+ opP->error="Invalid indirect register";
return FAIL;
- }
}
- }
- /* We've now got offset) offset,reg) or reg) */
-
- if (*str == '\0') {
- /* Th-the-thats all folks */
- if (opP->reg == FAIL) opP->mode = AINDX; /* Other form of indirect */
- else if(opP->ireg == FAIL) opP->mode = AOFF;
- else opP->mode = AINDX;
- return(OK);
- }
- /* Next thing had better be another @ */
- if(*str!='@' || str[1]!='(') {
- opP->error = "junk after indirect";
- return(FAIL);
- }
-
- if ((current_architecture & m68020up) == 0) {
- return(FAIL);
- } /* if target is not a '20 or better */
-
- str+=2;
-
- if(opP->ireg != FAIL) {
- opP->mode = APRDX;
+ know(*str == '@');
- i = try_index(&str, opP);
- if (i != FAIL) {
- opP->error = "Two index registers! not allowed!";
- return(FAIL);
+ str++;
+ switch(*str) {
+ case '\0':
+ opP->mode=AINDR;
+ return OK;
+ case '-':
+ opP->mode=ADEC;
+ return OK;
+ case '+':
+ opP->mode=AINC;
+ return OK;
+ case '(':
+ str++;
+ break;
+ default:
+ opP->error="Junk after indirect";
+ return FAIL;
}
- } else {
- i = try_index(&str, opP);
- }
-
- if (i == FAIL) {
- char *beg_str;
-
- beg_str = str;
+ /* Some kind of indexing involved. Lets find out how bad it is */
+ i=try_index(&str,opP);
+ /* Didn't start with an index reg, maybe its offset or offset,reg */
+ if(i==FAIL) {
+ char *beg_str;
+
+ beg_str=str;
+ for(i=1;i;) {
+ switch(*str++) {
+ case '\0':
+ opP->error="Missing )";
+ return FAIL;
+ case ',': i=0; break;
+ case '(': i++; break;
+ case ')': --i; break;
+ }
+ }
+ /* if(str[-3]==':') {
+ int siz;
+
+ switch(str[-2]) {
+ case 'b':
+ case 'B':
+ siz=1;
+ break;
+ case 'w':
+ case 'W':
+ siz=2;
+ break;
+ case 'l':
+ case 'L':
+ siz=3;
+ break;
+ default:
+ opP->error="Specified size isn't :w or :l";
+ return FAIL;
+ }
+ opP->con1=add_exp(beg_str,str-4);
+ opP->con1->e_siz=siz;
+ } else */
+ opP->con1=add_exp(beg_str,str-2);
+ /* Should be offset,reg */
+ if(str[-1]==',') {
+ i=try_index(&str,opP);
+ if(i==FAIL) {
+ opP->error="Malformed index reg";
+ return FAIL;
+ }
+ }
+ }
+ /* We've now got offset) offset,reg) or reg) */
- for (i = 1; i; ) {
- switch(*str++) {
- case '\0':
- opP->error="Missing )";
+ if (*str == '\0') {
+ /* Th-the-thats all folks */
+ if (opP->reg == FAIL) opP->mode = AINDX; /* Other form of indirect */
+ else if(opP->ireg == FAIL) opP->mode = AOFF;
+ else opP->mode = AINDX;
+ return(OK);
+ }
+ /* Next thing had better be another @ */
+ if(*str!='@' || str[1]!='(') {
+ opP->error = "junk after indirect";
return(FAIL);
- case ',': i=0; break;
- case '(': i++; break;
- case ')': --i; break;
- }
}
- opP->con2=add_exp(beg_str,str-2);
-
- if (str[-1] == ',') {
- if (opP->ireg != FAIL) {
- opP->error = "Can't have two index regs";
- return(FAIL);
- }
-
- i = try_index(&str, opP);
-
- if (i == FAIL) {
- opP->error = "malformed index reg";
+ if ((current_architecture & m68020up) == 0) {
return(FAIL);
- }
-
- opP->mode = APODX;
- } else if (opP->ireg != FAIL) {
- opP->mode = APRDX;
+ } /* if target is not a '20 or better */
+
+ str+=2;
+
+ if(opP->ireg != FAIL) {
+ opP->mode = APRDX;
+
+ i = try_index(&str, opP);
+ if (i != FAIL) {
+ opP->error = "Two index registers! not allowed!";
+ return(FAIL);
+ }
} else {
- opP->mode = AMIND;
+ i = try_index(&str, opP);
}
- } else {
- opP->mode = APODX;
- }
-
- if(*str!='\0') {
- opP->error="Junk after indirect";
- return FAIL;
- }
- return(OK);
+
+ if (i == FAIL) {
+ char *beg_str;
+
+ beg_str = str;
+
+ for (i = 1; i; ) {
+ switch(*str++) {
+ case '\0':
+ opP->error="Missing )";
+ return(FAIL);
+ case ',': i=0; break;
+ case '(': i++; break;
+ case ')': --i; break;
+ }
+ }
+
+ opP->con2=add_exp(beg_str,str-2);
+
+ if (str[-1] == ',') {
+ if (opP->ireg != FAIL) {
+ opP->error = "Can't have two index regs";
+ return(FAIL);
+ }
+
+ i = try_index(&str, opP);
+
+ if (i == FAIL) {
+ opP->error = "malformed index reg";
+ return(FAIL);
+ }
+
+ opP->mode = APODX;
+ } else if (opP->ireg != FAIL) {
+ opP->mode = APRDX;
+ } else {
+ opP->mode = AMIND;
+ }
+ } else {
+ opP->mode = APODX;
+ }
+
+ if(*str!='\0') {
+ opP->error="Junk after indirect";
+ return FAIL;
+ }
+ return(OK);
} /* m68k_ip_op() */
/*
*/
static int try_index(s,opP)
- char **s;
- struct m68k_op *opP;
+char **s;
+struct m68k_op *opP;
{
- register int i;
- char *ss;
+ register int i;
+ char *ss;
#define SKIP_W() { ss++; if (*ss==' ') ss++;}
-
- ss= *s;
- /* SKIP_W(); */
- i=m68k_reg_parse(&ss);
- if(!(i>=DATA+0 && i<=ADDR+7)) { /* if i is not DATA or ADDR reg */
- *s=ss;
- return FAIL;
- }
- opP->ireg=i;
- /* SKIP_W(); */
- if(*ss==')') {
- opP->isiz=0;
- opP->imul=1;
- SKIP_W();
- *s=ss;
- return OK;
- }
- if(*ss!=':') {
- opP->error="Missing : in index register";
- *s=ss;
- return FAIL;
- }
- SKIP_W();
- switch(*ss) {
- case 'w':
- case 'W':
- opP->isiz=2;
- break;
- case 'l':
- case 'L':
- opP->isiz=3;
- break;
- default:
- opP->error="Index register size spec not :w or :l";
- *s=ss;
- return FAIL;
- }
- SKIP_W();
- if(*ss==':') {
+
+ ss= *s;
+ /* SKIP_W(); */
+ i=m68k_reg_parse(&ss);
+ if(!(i>=DATA+0 && i<=ADDR+7)) { /* if i is not DATA or ADDR reg */
+ *s=ss;
+ return FAIL;
+ }
+ opP->ireg=i;
+ /* SKIP_W(); */
+ if(*ss==')') {
+ opP->isiz=0;
+ opP->imul=1;
+ SKIP_W();
+ *s=ss;
+ return OK;
+ }
+ if(*ss!=':') {
+ opP->error="Missing : in index register";
+ *s=ss;
+ return FAIL;
+ }
SKIP_W();
switch(*ss) {
- case '1':
- case '2':
- case '4':
- case '8':
- opP->imul= *ss-'0';
- break;
+ case 'w':
+ case 'W':
+ opP->isiz=2;
+ break;
+ case 'l':
+ case 'L':
+ opP->isiz=3;
+ break;
default:
- opP->error="index multiplier not 1, 2, 4 or 8";
- *s=ss;
- return FAIL;
+ opP->error="Index register size spec not :w or :l";
+ *s=ss;
+ return FAIL;
+ }
+ SKIP_W();
+ if(*ss==':') {
+ SKIP_W();
+ switch(*ss) {
+ case '1':
+ case '2':
+ case '4':
+ case '8':
+ opP->imul= *ss-'0';
+ break;
+ default:
+ opP->error="index multiplier not 1, 2, 4 or 8";
+ *s=ss;
+ return FAIL;
+ }
+ SKIP_W();
+ } else opP->imul=1;
+ if(*ss!=')') {
+ opP->error="Missing )";
+ *s=ss;
+ return FAIL;
}
SKIP_W();
- } else opP->imul=1;
- if(*ss!=')') {
- opP->error="Missing )";
*s=ss;
- return FAIL;
- }
- SKIP_W();
- *s=ss;
- return OK;
+ return OK;
} /* try_index() */
#ifdef TEST1 /* TEST1 tests m68k_ip_op(), which parses operands */
main()
{
- char buf[128];
- struct m68k_op thark;
-
- for(;;) {
- if(!gets(buf))
- break;
- bzero(&thark,sizeof(thark));
- if(!m68k_ip_op(buf,&thark)) printf("FAIL:");
- if(thark.error)
- printf("op1 error %s in %s\n",thark.error,buf);
- printf("mode %d, reg %d, ",thark.mode,thark.reg);
- if(thark.b_const)
- printf("Constant: '%.*s',",1+thark.e_const-thark.b_const,thark.b_const);
- printf("ireg %d, isiz %d, imul %d ",thark.ireg,thark.isiz,thark.imul);
- if(thark.b_iadd)
- printf("Iadd: '%.*s'",1+thark.e_iadd-thark.b_iadd,thark.b_iadd);
- printf("\n");
- }
- exit(0);
+ char buf[128];
+ struct m68k_op thark;
+
+ for(;;) {
+ if(!gets(buf))
+ break;
+ memset(&thark, '\0', sizeof(thark));
+ if(!m68k_ip_op(buf,&thark)) printf("FAIL:");
+ if(thark.error)
+ printf("op1 error %s in %s\n",thark.error,buf);
+ printf("mode %d, reg %d, ",thark.mode,thark.reg);
+ if(thark.b_const)
+ printf("Constant: '%.*s',",1+thark.e_const-thark.b_const,thark.b_const);
+ printf("ireg %d, isiz %d, imul %d ",thark.ireg,thark.isiz,thark.imul);
+ if(thark.b_iadd)
+ printf("Iadd: '%.*s'",1+thark.e_iadd-thark.b_iadd,thark.b_iadd);
+ printf("\n");
+ }
+ exit(0);
}
#endif
/* JF this function no longer returns a useful value. Sorry */
void m68k_ip (instring)
- char *instring;
+char *instring;
{
- register char *p;
- register struct m68k_op *opP;
- register struct m68k_incant *opcode;
- register char *s;
- register int tmpreg = 0,
- baseo = 0,
- outro = 0,
- nextword;
- int siz1,
- siz2;
- char c;
- int losing;
- int opsfound;
- char *crack_operand();
- LITTLENUM_TYPE words[6];
- LITTLENUM_TYPE *wordp;
-
- if (*instring == ' ')
- instring++; /* skip leading whitespace */
-
- /* Scan up to end of operation-code, which MUST end in end-of-string
- or exactly 1 space. */
- for (p = instring; *p != '\0'; p++)
- if (*p == ' ')
- break;
-
-
- if (p == instring) {
- the_ins.error = "No operator";
- the_ins.opcode[0] = NULL;
- /* the_ins.numo=1; */
- return;
- }
-
- /* p now points to the end of the opcode name, probably whitespace.
- make sure the name is null terminated by clobbering the whitespace,
- look it up in the hash table, then fix it back. */
- c = *p;
- *p = '\0';
- opcode = (struct m68k_incant *)hash_find (op_hash, instring);
- *p = c;
-
- if (opcode == NULL) {
- the_ins.error = "Unknown operator";
- the_ins.opcode[0] = NULL;
- /* the_ins.numo=1; */
- return;
- }
-
- /* found a legitimate opcode, start matching operands */
- while (*p == ' ') ++p;
-
- for(opP = &the_ins.operands[0]; *p; opP++) {
+ register char *p;
+ register struct m68k_op *opP;
+ register struct m68k_incant *opcode;
+ register char *s;
+ register int tmpreg = 0,
+ baseo = 0,
+ outro = 0,
+ nextword;
+ int siz1,
+ siz2;
+ char c;
+ int losing;
+ int opsfound;
+ char *crack_operand();
+ LITTLENUM_TYPE words[6];
+ LITTLENUM_TYPE *wordp;
+
+ if (*instring == ' ')
+ instring++; /* skip leading whitespace */
+
+ /* Scan up to end of operation-code, which MUST end in end-of-string
+ or exactly 1 space. */
+ for (p = instring; *p != '\0'; p++)
+ if (*p == ' ')
+ break;
- p = crack_operand(p, opP);
- if (opP->error) {
- the_ins.error=opP->error;
- return;
+ if (p == instring) {
+ the_ins.error = "No operator";
+ the_ins.opcode[0] = NULL;
+ /* the_ins.numo=1; */
+ return;
}
- }
-
- opsfound = opP - &the_ins.operands[0];
-
- /* This ugly hack is to support the floating pt opcodes in their standard form */
- /* Essentially, we fake a first enty of type COP#1 */
- if (opcode->m_operands[0]=='I') {
- int n;
- for(n=opsfound;n>0;--n)
- the_ins.operands[n]=the_ins.operands[n-1];
+ /* p now points to the end of the opcode name, probably whitespace.
+ make sure the name is null terminated by clobbering the whitespace,
+ look it up in the hash table, then fix it back. */
+ c = *p;
+ *p = '\0';
+ opcode = (struct m68k_incant *)hash_find (op_hash, instring);
+ *p = c;
- /* bcopy((char *)(&the_ins.operands[0]),(char *)(&the_ins.operands[1]),opsfound*sizeof(the_ins.operands[0])); */
- bzero((char *)(&the_ins.operands[0]),sizeof(the_ins.operands[0]));
- the_ins.operands[0].mode=MSCR;
- the_ins.operands[0].reg=COPNUM; /* COP #1 */
- opsfound++;
- }
-
- /* We've got the operands. Find an opcode that'll accept them */
- for (losing = 0; ; ) {
- /* if we didn't get the right number of ops,
- or we have no common model with this pattern
- then reject this pattern. */
-
- if (opsfound != opcode->m_opnum
- || ((opcode->m_arch & current_architecture) == 0)) {
-
- ++losing;
-
- } else {
- for (s=opcode->m_operands, opP = &the_ins.operands[0]; *s && !losing; s += 2, opP++) {
- /* Warning: this switch is huge! */
- /* I've tried to organize the cases into this order:
- non-alpha first, then alpha by letter. lower-case goes directly
- before uppercase counterpart. */
- /* Code with multiple case ...: gets sorted by the lowest case ...
- it belongs to. I hope this makes sense. */
- switch(*s) {
- case '!':
- if (opP->mode == MSCR || opP->mode == IMMED
- || opP->mode == DREG || opP->mode == AREG
- || opP->mode == AINC || opP->mode == ADEC
- || opP->mode == REGLST)
- losing++;
- break;
-
- case '#':
- if(opP->mode!=IMMED)
- losing++;
- else {
- long t;
+ if (opcode == NULL) {
+ the_ins.error = "Unknown operator";
+ the_ins.opcode[0] = NULL;
+ /* the_ins.numo=1; */
+ return;
+ }
+
+ /* found a legitimate opcode, start matching operands */
+ while (*p == ' ') ++p;
+
+ for(opP = &the_ins.operands[0]; *p; opP++) {
+
+ p = crack_operand(p, opP);
+
+ if (opP->error) {
+ the_ins.error=opP->error;
+ return;
+ }
+ }
+
+ opsfound = opP - &the_ins.operands[0];
+
+ /* This ugly hack is to support the floating pt opcodes in their standard form */
+ /* Essentially, we fake a first enty of type COP#1 */
+ if (opcode->m_operands[0]=='I') {
+ int n;
+
+ for(n=opsfound;n>0;--n)
+ the_ins.operands[n]=the_ins.operands[n-1];
+
+ /* memcpy((char *)(&the_ins.operands[1]), (char *)(&the_ins.operands[0]), opsfound*sizeof(the_ins.operands[0])); */
+ memset((char *)(&the_ins.operands[0]), '\0', sizeof(the_ins.operands[0]));
+ the_ins.operands[0].mode=MSCR;
+ the_ins.operands[0].reg=COPNUM; /* COP #1 */
+ opsfound++;
+ }
+
+ /* We've got the operands. Find an opcode that'll accept them */
+ for (losing = 0; ; ) {
+ /* if we didn't get the right number of ops,
+ or we have no common model with this pattern
+ then reject this pattern. */
+
+ if (opsfound != opcode->m_opnum
+ || ((opcode->m_arch & current_architecture) == 0)) {
- t=get_num(opP->con1,80);
- if(s[1]=='b' && !isbyte(t))
- losing++;
- else if(s[1]=='w' && !isword(t))
- losing++;
- }
- break;
-
- case '^':
- case 'T':
- if(opP->mode!=IMMED)
- losing++;
- break;
-
- case '$':
- if(opP->mode==MSCR || opP->mode==AREG ||
- opP->mode==IMMED || opP->reg==PC || opP->reg==ZPC || opP->mode==REGLST)
- losing++;
- break;
-
+ ++losing;
+
+ } else {
+ for (s=opcode->m_operands, opP = &the_ins.operands[0]; *s && !losing; s += 2, opP++) {
+ /* Warning: this switch is huge! */
+ /* I've tried to organize the cases into this order:
+ non-alpha first, then alpha by letter. lower-case goes directly
+ before uppercase counterpart. */
+ /* Code with multiple case ...: gets sorted by the lowest case ...
+ it belongs to. I hope this makes sense. */
+ switch(*s) {
+ case '!':
+ if (opP->mode == MSCR || opP->mode == IMMED
+ || opP->mode == DREG || opP->mode == AREG
+ || opP->mode == AINC || opP->mode == ADEC
+ || opP->mode == REGLST)
+ losing++;
+ break;
+
+ case '#':
+ if(opP->mode!=IMMED)
+ losing++;
+ else {
+ long t;
+
+ t=get_num(opP->con1,80);
+ if(s[1]=='b' && !isbyte(t))
+ losing++;
+ else if(s[1]=='w' && !isword(t))
+ losing++;
+ }
+ break;
+
+ case '^':
+ case 'T':
+ if(opP->mode!=IMMED)
+ losing++;
+ break;
+
+ case '$':
+ if(opP->mode==MSCR || opP->mode==AREG ||
+ opP->mode==IMMED || opP->reg==PC || opP->reg==ZPC || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case '%':
+ if(opP->mode==MSCR || opP->reg==PC ||
+ opP->reg==ZPC || opP->mode==REGLST)
+ losing++;
+ break;
+
+
+ case '&':
+ if(opP->mode==MSCR || opP->mode==DREG ||
+ opP->mode==AREG || opP->mode==IMMED || opP->reg==PC || opP->reg==ZPC ||
+ opP->mode==AINC || opP->mode==ADEC || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case '*':
+ if(opP->mode==MSCR || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case '+':
+ if(opP->mode!=AINC)
+ losing++;
+ break;
+
+ case '-':
+ if(opP->mode!=ADEC)
+ losing++;
+ break;
+
+ case '/':
+ if(opP->mode==MSCR || opP->mode==AREG ||
+ opP->mode==AINC || opP->mode==ADEC || opP->mode==IMMED || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case ';':
+ if(opP->mode==MSCR || opP->mode==AREG || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case '?':
+ if(opP->mode==MSCR || opP->mode==AREG ||
+ opP->mode==AINC || opP->mode==ADEC || opP->mode==IMMED || opP->reg==PC ||
+ opP->reg==ZPC || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case '@':
+ if(opP->mode==MSCR || opP->mode==AREG ||
+ opP->mode==IMMED || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case '~': /* For now! (JF FOO is this right?) */
+ if(opP->mode==MSCR || opP->mode==DREG ||
+ opP->mode==AREG || opP->mode==IMMED || opP->reg==PC || opP->reg==ZPC || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case 'A':
+ if(opP->mode!=AREG)
+ losing++;
+ break;
+ case 'a':
+ if (opP->mode != AINDR) {
+ ++losing;
+ } /* if not address register indirect */
+ break;
+ case 'B': /* FOO */
+ if(opP->mode!=ABSL || (flagseen['S'] && instring[0] == 'j'
+ && instring[1] == 'b'
+ && instring[2] == 's'
+ && instring[3] == 'r'))
+ losing++;
+ break;
+
+ case 'C':
+ if(opP->mode!=MSCR || opP->reg!=CCR)
+ losing++;
+ break;
+
+ case 'd': /* FOO This mode is a KLUDGE!! */
+ if(opP->mode!=AOFF && (opP->mode!=ABSL ||
+ opP->con1->e_beg[0]!='(' || opP->con1->e_end[0]!=')'))
+ losing++;
+ break;
+
+ case 'D':
+ if(opP->mode!=DREG)
+ losing++;
+ break;
+
+ case 'F':
+ if(opP->mode!=MSCR || opP->reg<(FPREG+0) || opP->reg>(FPREG+7))
+ losing++;
+ break;
+
+ case 'I':
+ if(opP->mode!=MSCR || opP->reg<COPNUM ||
+ opP->reg>=COPNUM+7)
+ losing++;
+ break;
+
+ case 'J':
+ if (opP->mode != MSCR
+ || opP->reg < USP
+ || opP->reg > URP
+ || cpu_of_arch(current_architecture) < m68010 /* before 68010 had none */
+ || (cpu_of_arch(current_architecture) < m68020
+ && opP->reg != SFC
+ && opP->reg != DFC
+ && opP->reg != USP
+ && opP->reg != VBR) /* 68010's had only these */
+ || (cpu_of_arch(current_architecture) < m68040
+ && opP->reg != SFC
+ && opP->reg != DFC
+ && opP->reg != USP
+ && opP->reg != VBR
+ && opP->reg != CACR
+ && opP->reg != CAAR
+ && opP->reg != MSP
+ && opP->reg != ISP) /* 680[23]0's have only these */
+ || (cpu_of_arch(current_architecture) == m68040 /* 68040 has all but this */
+ && opP->reg == CAAR)) {
+ losing++;
+ } /* doesn't cut it */
+ break;
+
+ case 'k':
+ if(opP->mode!=IMMED)
+ losing++;
+ break;
+
+ case 'l':
+ case 'L':
+ if(opP->mode==DREG || opP->mode==AREG || opP->mode==FPREG) {
+ if(s[1]=='8')
+ losing++;
+ else {
+ opP->mode=REGLST;
+ opP->reg=1<<(opP->reg-DATA);
+ }
+ } else if(opP->mode!=REGLST) {
+ losing++;
+ } else if(s[1]=='8' && opP->reg&0x0FFffFF)
+ losing++;
+ else if(s[1]=='3' && opP->reg&0x7000000)
+ losing++;
+ break;
+
+ case 'M':
+ if(opP->mode!=IMMED)
+ losing++;
+ else {
+ long t;
+
+ t=get_num(opP->con1,80);
+ if(!issbyte(t) || isvar(opP->con1))
+ losing++;
+ }
+ break;
+
+ case 'O':
+ if(opP->mode!=DREG && opP->mode!=IMMED)
+ losing++;
+ break;
+
+ case 'Q':
+ if(opP->mode!=IMMED)
+ losing++;
+ else {
+ long t;
+
+ t=get_num(opP->con1,80);
+ if(t<1 || t>8 || isvar(opP->con1))
+ losing++;
+ }
+ break;
+
+ case 'R':
+ if(opP->mode!=DREG && opP->mode!=AREG)
+ losing++;
+ break;
+
+ case 's':
+ if(opP->mode!=MSCR || !(opP->reg==FPI || opP->reg==FPS || opP->reg==FPC))
+ losing++;
+ break;
+
+ case 'S':
+ if(opP->mode!=MSCR || opP->reg!=SR)
+ losing++;
+ break;
+
+ case 'U':
+ if(opP->mode!=MSCR || opP->reg!=USP)
+ losing++;
+ break;
+
+ /* JF these are out of order. We could put them
+ in order if we were willing to put up with
+ bunches of #ifdef m68851s in the code */
+#ifndef NO_68851
+ /* Memory addressing mode used by pflushr */
+ case '|':
+ if(opP->mode==MSCR || opP->mode==DREG ||
+ opP->mode==AREG || opP->mode==REGLST)
+ losing++;
+ break;
+
+ case 'f':
+ if (opP->mode != MSCR || (opP->reg != SFC && opP->reg != DFC))
+ losing++;
+ break;
+
+ case 'P':
+ if (opP->mode != MSCR || (opP->reg != TC && opP->reg != CAL &&
+ opP->reg != VAL && opP->reg != SCC && opP->reg != AC))
+ losing++;
+ break;
+
+ case 'V':
+ if (opP->reg != VAL)
+ losing++;
+ break;
+
+ case 'W':
+ if (opP->mode != MSCR || (opP->reg != DRP && opP->reg != SRP &&
+ opP->reg != CRP))
+ losing++;
+ break;
+
+ case 'X':
+ if (opP->mode != MSCR ||
+ (!(opP->reg >= BAD && opP->reg <= BAD+7) &&
+ !(opP->reg >= BAC && opP->reg <= BAC+7)))
+ losing++;
+ break;
+
+ case 'Y':
+ if (opP->reg != PSR)
+ losing++;
+ break;
+
+ case 'Z':
+ if (opP->reg != PCSR)
+ losing++;
+ break;
+#endif
+ case 'c':
+ if (opP->reg != NC
+ && opP->reg != IC
+ && opP->reg != DC
+ && opP->reg != BC) {
+ losing++;
+ } /* not a cache specifier. */
+ break;
+
+ case '_':
+ if (opP->mode != ABSL) {
+ ++losing;
+ } /* not absolute */
+ break;
+
+ default:
+ as_fatal("Internal error: Operand mode %c unknown in line %s of file \"%s\"",
+ *s, __LINE__, __FILE__);
+ } /* switch on type of operand */
+
+ if (losing) break;
+ } /* for each operand */
+ } /* if immediately wrong */
+
+ if (!losing) {
+ break;
+ } /* got it. */
+
+ opcode = opcode->m_next;
+
+ if (!opcode) {
+ the_ins.error = "instruction/operands mismatch";
+ return;
+ } /* Fell off the end */
+
+ losing = 0;
+ }
+
+ /* now assemble it */
+
+ the_ins.args=opcode->m_operands;
+ the_ins.numargs=opcode->m_opnum;
+ the_ins.numo=opcode->m_codenum;
+ the_ins.opcode[0]=getone(opcode);
+ the_ins.opcode[1]=gettwo(opcode);
+
+ for (s = the_ins.args, opP = &the_ins.operands[0]; *s; s += 2, opP++) {
+ /* This switch is a doozy.
+ Watch the first step; its a big one! */
+ switch(s[0]) {
+
+ case '*':
+ case '~':
case '%':
- if(opP->mode==MSCR || opP->reg==PC ||
- opP->reg==ZPC || opP->mode==REGLST)
- losing++;
- break;
-
-
+ case ';':
+ case '@':
+ case '!':
case '&':
- if(opP->mode==MSCR || opP->mode==DREG ||
- opP->mode==AREG || opP->mode==IMMED || opP->reg==PC || opP->reg==ZPC ||
- opP->mode==AINC || opP->mode==ADEC || opP->mode==REGLST)
- losing++;
- break;
-
- case '*':
- if(opP->mode==MSCR || opP->mode==REGLST)
- losing++;
- break;
-
+ case '$':
+ case '?':
+ case '/':
+#ifndef NO_68851
+ case '|':
+#endif
+ switch(opP->mode) {
+ case IMMED:
+ tmpreg=0x3c; /* 7.4 */
+ if (strchr("bwl",s[1])) nextword=get_num(opP->con1,80);
+ else nextword=nextword=get_num(opP->con1,0);
+ if(isvar(opP->con1))
+ add_fix(s[1],opP->con1,0);
+ switch(s[1]) {
+ case 'b':
+ if(!isbyte(nextword))
+ opP->error="operand out of range";
+ addword(nextword);
+ baseo=0;
+ break;
+ case 'w':
+ if(!isword(nextword))
+ opP->error="operand out of range";
+ addword(nextword);
+ baseo=0;
+ break;
+ case 'l':
+ addword(nextword>>16);
+ addword(nextword);
+ baseo=0;
+ break;
+
+ case 'f':
+ baseo=2;
+ outro=8;
+ break;
+ case 'F':
+ baseo=4;
+ outro=11;
+ break;
+ case 'x':
+ baseo=6;
+ outro=15;
+ break;
+ case 'p':
+ baseo=6;
+ outro= -1;
+ break;
+ default:
+ as_fatal("Internal error: Can't decode %c%c in line %s of file \"%s\"",
+ *s, s[1], __LINE__, __FILE__);
+ }
+ if(!baseo)
+ break;
+
+ /* We gotta put out some float */
+ if(seg(opP->con1)!=SEG_BIG) {
+ int_to_gen(nextword);
+ gen_to_words(words,baseo,(long int)outro);
+ for(wordp=words;baseo--;wordp++)
+ addword(*wordp);
+ break;
+ } /* Its BIG */
+ if(offs(opP->con1)>0) {
+ as_warn("Bignum assumed to be binary bit-pattern");
+ if(offs(opP->con1)>baseo) {
+ as_warn("Bignum too big for %c format; truncated",s[1]);
+ offs(opP->con1)=baseo;
+ }
+ baseo-=offs(opP->con1);
+ for(wordp=generic_bignum+offs(opP->con1)-1;offs(opP->con1)--;--wordp)
+ addword(*wordp);
+ while(baseo--)
+ addword(0);
+ break;
+ }
+ gen_to_words(words,baseo,(long)outro);
+ for (wordp=words;baseo--;wordp++)
+ addword(*wordp);
+ break;
+ case DREG:
+ tmpreg=opP->reg-DATA; /* 0.dreg */
+ break;
+ case AREG:
+ tmpreg=0x08+opP->reg-ADDR; /* 1.areg */
+ break;
+ case AINDR:
+ tmpreg=0x10+opP->reg-ADDR; /* 2.areg */
+ break;
+ case ADEC:
+ tmpreg=0x20+opP->reg-ADDR; /* 4.areg */
+ break;
+ case AINC:
+ tmpreg=0x18+opP->reg-ADDR; /* 3.areg */
+ break;
+ case AOFF:
+
+ nextword=get_num(opP->con1,80);
+ /* Force into index mode. Hope this works */
+
+ /* We do the first bit for 32-bit displacements,
+ and the second bit for 16 bit ones. It is
+ possible that we should make the default be
+ WORD instead of LONG, but I think that'd
+ break GCC, so we put up with a little
+ inefficiency for the sake of working output.
+ */
+
+ if( !issword(nextword)
+ || ( isvar(opP->con1)
+ && ( ( opP->con1->e_siz==0
+ && flagseen['l']==0)
+ || opP->con1->e_siz==3))) {
+
+ if(opP->reg==PC)
+ tmpreg=0x3B; /* 7.3 */
+ else
+ tmpreg=0x30+opP->reg-ADDR; /* 6.areg */
+ if(isvar(opP->con1)) {
+ if(opP->reg==PC) {
+ add_frag(adds(opP->con1),
+ offs(opP->con1),
+ TAB(PCLEA,SZ_UNDEF));
+ break;
+ } else {
+ addword(0x0170);
+ add_fix('l',opP->con1,1);
+ }
+ } else
+ addword(0x0170);
+ addword(nextword>>16);
+ } else {
+ if(opP->reg==PC)
+ tmpreg=0x3A; /* 7.2 */
+ else
+ tmpreg=0x28+opP->reg-ADDR; /* 5.areg */
+
+ if(isvar(opP->con1)) {
+ if(opP->reg==PC) {
+ add_fix('w',opP->con1,1);
+ } else
+ add_fix('w',opP->con1,0);
+ }
+ }
+ addword(nextword);
+ break;
+
+ case APODX:
+ case AMIND:
+ case APRDX:
+ know(current_architecture & m68020up);
+ /* intentional fall-through */
+ case AINDX:
+ nextword=0;
+ baseo=get_num(opP->con1,80);
+ outro=get_num(opP->con2,80);
+ /* Figure out the 'addressing mode' */
+ /* Also turn on the BASE_DISABLE bit, if needed */
+ if(opP->reg==PC || opP->reg==ZPC) {
+ tmpreg=0x3b; /* 7.3 */
+ if(opP->reg==ZPC)
+ nextword|=0x80;
+ } else if(opP->reg==FAIL) {
+ nextword|=0x80;
+ tmpreg=0x30; /* 6.garbage */
+ } else tmpreg=0x30+opP->reg-ADDR; /* 6.areg */
+
+ siz1= (opP->con1) ? opP->con1->e_siz : 0;
+ siz2= (opP->con2) ? opP->con2->e_siz : 0;
+
+ /* Index register stuff */
+ if(opP->ireg>=DATA+0 && opP->ireg<=ADDR+7) {
+ nextword|=(opP->ireg-DATA)<<12;
+
+ if(opP->isiz==0 || opP->isiz==3)
+ nextword|=0x800;
+ switch(opP->imul) {
+ case 1: break;
+ case 2: nextword|=0x200; break;
+ case 4: nextword|=0x400; break;
+ case 8: nextword|=0x600; break;
+ default: as_fatal("failed sanity check.");
+ }
+ /* IF its simple,
+ GET US OUT OF HERE! */
+
+ /* Must be INDEX, with an index
+ register. Address register
+ cannot be ZERO-PC, and either
+ :b was forced, or we know
+ it will fit */
+ if( opP->mode==AINDX
+ && opP->reg!=FAIL
+ && opP->reg!=ZPC
+ && ( siz1==1
+ || ( issbyte(baseo)
+ && !isvar(opP->con1)))) {
+ nextword +=baseo&0xff;
+ addword(nextword);
+ if(isvar(opP->con1))
+ add_fix('B',opP->con1,0);
+ break;
+ }
+ } else
+ nextword|=0x40; /* No index reg */
+
+ /* It aint simple */
+ nextword|=0x100;
+ /* If the guy specified a width, we assume that
+ it is wide enough. Maybe it isn't. If so, we lose
+ */
+ switch(siz1) {
+ case 0:
+ if(isvar(opP->con1) || !issword(baseo)) {
+ siz1=3;
+ nextword|=0x30;
+ } else if(baseo==0)
+ nextword|=0x10;
+ else {
+ nextword|=0x20;
+ siz1=2;
+ }
+ break;
+ case 1:
+ as_warn("Byte dispacement won't work. Defaulting to :w");
+ case 2:
+ nextword|=0x20;
+ break;
+ case 3:
+ nextword|=0x30;
+ break;
+ }
+
+ /* Figure out innner displacement stuff */
+ if(opP->mode!=AINDX) {
+ switch(siz2) {
+ case 0:
+ if(isvar(opP->con2) || !issword(outro)) {
+ siz2=3;
+ nextword|=0x3;
+ } else if(outro==0)
+ nextword|=0x1;
+ else {
+ nextword|=0x2;
+ siz2=2;
+ }
+ break;
+ case 1:
+ as_warn("Byte dispacement won't work. Defaulting to :w");
+ case 2:
+ nextword|=0x2;
+ break;
+ case 3:
+ nextword|=0x3;
+ break;
+ }
+ if(opP->mode==APODX) nextword|=0x04;
+ else if(opP->mode==AMIND) nextword|=0x40;
+ }
+ addword(nextword);
+
+ if(isvar(opP->con1)) {
+ if(opP->reg==PC || opP->reg==ZPC) {
+ add_fix(siz1==3 ? 'l' : 'w',opP->con1,1);
+ opP->con1->e_exp.X_add_number+=6;
+ } else
+ add_fix(siz1==3 ? 'l' : 'w',opP->con1,0);
+ }
+ if(siz1==3)
+ addword(baseo>>16);
+ if(siz1)
+ addword(baseo);
+
+ if(isvar(opP->con2)) {
+ if(opP->reg==PC || opP->reg==ZPC) {
+ add_fix(siz2==3 ? 'l' : 'w',opP->con2,1);
+ opP->con1->e_exp.X_add_number+=6;
+ } else
+ add_fix(siz2==3 ? 'l' : 'w',opP->con2,0);
+ }
+ if(siz2==3)
+ addword(outro>>16);
+ if(siz2)
+ addword(outro);
+
+ break;
+
+ case ABSL:
+ nextword=get_num(opP->con1,80);
+ switch(opP->con1->e_siz) {
+ default:
+ as_warn("Unknown size for absolute reference");
+ case 0:
+ if(!isvar(opP->con1) && issword(offs(opP->con1))) {
+ tmpreg=0x38; /* 7.0 */
+ addword(nextword);
+ break;
+ }
+ /* Don't generate pc relative code
+ on 68010 and 68000 */
+ if(isvar(opP->con1)
+ && !subs(opP->con1)
+ && seg(opP->con1) == SEG_TEXT
+ && now_seg == SEG_TEXT
+ && cpu_of_arch(current_architecture) < m68020
+ && !flagseen['S']
+ && !strchr("~%&$?", s[0])) {
+ tmpreg=0x3A; /* 7.2 */
+ add_frag(adds(opP->con1),
+ offs(opP->con1),
+ TAB(PCREL,SZ_UNDEF));
+ break;
+ }
+ case 3: /* Fall through into long */
+ if(isvar(opP->con1))
+ add_fix('l',opP->con1,0);
+
+ tmpreg=0x39; /* 7.1 mode */
+ addword(nextword>>16);
+ addword(nextword);
+ break;
+
+ case 2: /* Word */
+ if(isvar(opP->con1))
+ add_fix('w',opP->con1,0);
+
+ tmpreg=0x38; /* 7.0 mode */
+ addword(nextword);
+ break;
+ }
+ break;
+ case MSCR:
+ default:
+ as_bad("unknown/incorrect operand");
+ /* abort(); */
+ }
+ install_gen_operand(s[1],tmpreg);
+ break;
+
+ case '#':
+ case '^':
+ switch(s[1]) { /* JF: I hate floating point! */
+ case 'j':
+ tmpreg=70;
+ break;
+ case '8':
+ tmpreg=20;
+ break;
+ case 'C':
+ tmpreg=50;
+ break;
+ case '3':
+ default:
+ tmpreg=80;
+ break;
+ }
+ tmpreg=get_num(opP->con1,tmpreg);
+ if(isvar(opP->con1))
+ add_fix(s[1],opP->con1,0);
+ switch(s[1]) {
+ case 'b': /* Danger: These do no check for
+ certain types of overflow.
+ user beware! */
+ if(!isbyte(tmpreg))
+ opP->error="out of range";
+ insop(tmpreg);
+ if(isvar(opP->con1))
+ the_ins.reloc[the_ins.nrel-1].n=(opcode->m_codenum)*2;
+ break;
+ case 'w':
+ if(!isword(tmpreg))
+ opP->error="out of range";
+ insop(tmpreg);
+ if(isvar(opP->con1))
+ the_ins.reloc[the_ins.nrel-1].n=(opcode->m_codenum)*2;
+ break;
+ case 'l':
+ insop(tmpreg); /* Because of the way insop works, we put these two out backwards */
+ insop(tmpreg>>16);
+ if(isvar(opP->con1))
+ the_ins.reloc[the_ins.nrel-1].n=(opcode->m_codenum)*2;
+ break;
+ case '3':
+ tmpreg&=0xFF;
+ case '8':
+ case 'C':
+ install_operand(s[1],tmpreg);
+ break;
+ default:
+ as_fatal("Internal error: Unknown mode #%c in line %s of file \"%s\"", s[1], __LINE__, __FILE__);
+ }
+ break;
+
case '+':
- if(opP->mode!=AINC)
- losing++;
- break;
-
case '-':
- if(opP->mode!=ADEC)
- losing++;
- break;
-
- case '/':
- if(opP->mode==MSCR || opP->mode==AREG ||
- opP->mode==AINC || opP->mode==ADEC || opP->mode==IMMED || opP->mode==REGLST)
- losing++;
- break;
-
- case ';':
- if(opP->mode==MSCR || opP->mode==AREG || opP->mode==REGLST)
- losing++;
- break;
-
- case '?':
- if(opP->mode==MSCR || opP->mode==AREG ||
- opP->mode==AINC || opP->mode==ADEC || opP->mode==IMMED || opP->reg==PC ||
- opP->reg==ZPC || opP->mode==REGLST)
- losing++;
- break;
-
- case '@':
- if(opP->mode==MSCR || opP->mode==AREG ||
- opP->mode==IMMED || opP->mode==REGLST)
- losing++;
- break;
-
- case '~': /* For now! (JF FOO is this right?) */
- if(opP->mode==MSCR || opP->mode==DREG ||
- opP->mode==AREG || opP->mode==IMMED || opP->reg==PC || opP->reg==ZPC || opP->mode==REGLST)
- losing++;
- break;
-
case 'A':
- if(opP->mode!=AREG)
- losing++;
- break;
case 'a':
- if (opP->mode != AINDR) {
- ++losing;
- } /* if not address register indirect */
- break;
- case 'B': /* FOO */
- if(opP->mode!=ABSL || (flagseen['S'] && instring[0] == 'j'
- && instring[1] == 'b'
- && instring[2] == 's'
- && instring[3] == 'r'))
- losing++;
- break;
-
- case 'C':
- if(opP->mode!=MSCR || opP->reg!=CCR)
- losing++;
- break;
-
- case 'd': /* FOO This mode is a KLUDGE!! */
- if(opP->mode!=AOFF && (opP->mode!=ABSL ||
- opP->con1->e_beg[0]!='(' || opP->con1->e_end[0]!=')'))
- losing++;
- break;
-
+ install_operand(s[1],opP->reg-ADDR);
+ break;
+
+ case 'B':
+ tmpreg=get_num(opP->con1,80);
+ switch(s[1]) {
+ case 'B':
+ /* Needs no offsetting */
+ add_fix('B',opP->con1,1);
+ break;
+ case 'W':
+ /* Offset the displacement to be relative to byte disp location */
+ opP->con1->e_exp.X_add_number+=2;
+ add_fix('w',opP->con1,1);
+ addword(0);
+ break;
+ case 'L':
+ long_branch:
+ if (cpu_of_arch(current_architecture) < m68020) /* 68000 or 010 */
+ as_warn("Can't use long branches on 68000/68010");
+ the_ins.opcode[the_ins.numo-1]|=0xff;
+ /* Offset the displacement to be relative to byte disp location */
+ opP->con1->e_exp.X_add_number+=4;
+ add_fix('l',opP->con1,1);
+ addword(0);
+ addword(0);
+ break;
+ case 'g':
+ if(subs(opP->con1)) /* We can't relax it */
+ goto long_branch;
+
+ /* This could either be a symbol, or an
+ absolute address. No matter, the
+ frag hacking will finger it out.
+ Not quite: it can't switch from
+ BRANCH to BCC68000 for the case
+ where opnd is absolute (it needs
+ to use the 68000 hack since no
+ conditional abs jumps). */
+ if (((cpu_of_arch(current_architecture) < m68020) || (0==adds(opP->con1)))
+ && (the_ins.opcode[0] >= 0x6200)
+ && (the_ins.opcode[0] <= 0x6f00)) {
+ add_frag(adds(opP->con1),offs(opP->con1),TAB(BCC68000,SZ_UNDEF));
+ } else {
+ add_frag(adds(opP->con1),offs(opP->con1),TAB(BRANCH,SZ_UNDEF));
+ }
+ break;
+ case 'w':
+ if(isvar(opP->con1)) {
+ /* check for DBcc instruction */
+ if ((the_ins.opcode[0] & 0xf0f8) ==0x50c8) {
+ /* size varies if patch */
+ /* needed for long form */
+ add_frag(adds(opP->con1),offs(opP->con1),TAB(DBCC,SZ_UNDEF));
+ break;
+ }
+
+ /* Don't ask! */
+ opP->con1->e_exp.X_add_number+=2;
+ add_fix('w',opP->con1,1);
+ }
+ addword(0);
+ break;
+ case 'C': /* Fixed size LONG coproc branches */
+ the_ins.opcode[the_ins.numo-1]|=0x40;
+ /* Offset the displacement to be relative to byte disp location */
+ /* Coproc branches don't have a byte disp option, but they are
+ compatible with the ordinary branches, which do... */
+ opP->con1->e_exp.X_add_number+=4;
+ add_fix('l',opP->con1,1);
+ addword(0);
+ addword(0);
+ break;
+ case 'c': /* Var size Coprocesssor branches */
+ if(subs(opP->con1)) {
+ add_fix('l',opP->con1,1);
+ add_frag((symbolS *)0,(long)0,TAB(FBRANCH,LONG));
+ } else if(adds(opP->con1)) {
+ add_frag(adds(opP->con1),offs(opP->con1),TAB(FBRANCH,SZ_UNDEF));
+ } else {
+ /* add_frag((symbolS *)0,offs(opP->con1),TAB(FBRANCH,SHORT)); */
+ the_ins.opcode[the_ins.numo-1]|=0x40;
+ add_fix('l',opP->con1,1);
+ addword(0);
+ addword(4);
+ }
+ break;
+ default:
+ as_fatal("Internal error: operand type B%c unknown in line %s of file \"%s\"",
+ s[1], __LINE__, __FILE__);
+ }
+ break;
+
+ case 'C': /* Ignore it */
+ break;
+
+ case 'd': /* JF this is a kludge */
+ if(opP->mode==AOFF) {
+ install_operand('s',opP->reg-ADDR);
+ } else {
+ char *tmpP;
+
+ tmpP=opP->con1->e_end-2;
+ opP->con1->e_beg++;
+ opP->con1->e_end-=4; /* point to the , */
+ baseo=m68k_reg_parse(&tmpP);
+ if(baseo<ADDR+0 || baseo>ADDR+7) {
+ as_bad("Unknown address reg, using A0");
+ baseo=0;
+ } else baseo-=ADDR;
+ install_operand('s',baseo);
+ }
+ tmpreg=get_num(opP->con1,80);
+ if(!issword(tmpreg)) {
+ as_warn("Expression out of range, using 0");
+ tmpreg=0;
+ }
+ addword(tmpreg);
+ break;
+
case 'D':
- if(opP->mode!=DREG)
- losing++;
- break;
-
+ install_operand(s[1],opP->reg-DATA);
+ break;
+
case 'F':
- if(opP->mode!=MSCR || opP->reg<(FPREG+0) || opP->reg>(FPREG+7))
- losing++;
- break;
-
+ install_operand(s[1],opP->reg-FPREG);
+ break;
+
case 'I':
- if(opP->mode!=MSCR || opP->reg<COPNUM ||
- opP->reg>=COPNUM+7)
- losing++;
- break;
-
- case 'J':
- if (opP->mode != MSCR
- || opP->reg < USP
- || opP->reg > URP
- || cpu_of_arch(current_architecture) < m68010 /* before 68010 had none */
- || (cpu_of_arch(current_architecture) < m68020
- && opP->reg != SFC
- && opP->reg != DFC
- && opP->reg != USP
- && opP->reg != VBR) /* 68010's had only these */
- || (cpu_of_arch(current_architecture) < m68040
- && opP->reg != SFC
- && opP->reg != DFC
- && opP->reg != USP
- && opP->reg != VBR
- && opP->reg != CACR
- && opP->reg != CAAR
- && opP->reg != MSP
- && opP->reg != ISP) /* 680[23]0's have only these */
- || (cpu_of_arch(current_architecture) == m68040 /* 68040 has all but this */
- && opP->reg == CAAR)) {
- losing++;
- } /* doesn't cut it */
- break;
-
+ tmpreg=1+opP->reg-COPNUM;
+ if(tmpreg==8)
+ tmpreg=0;
+ install_operand(s[1],tmpreg);
+ break;
+
+ case 'J': /* JF foo */
+ switch(opP->reg) {
+ case SFC: tmpreg=0x000; break;
+ case DFC: tmpreg=0x001; break;
+ case CACR: tmpreg=0x002; break;
+ case TC: tmpreg=0x003; break;
+ case ITT0: tmpreg=0x004; break;
+ case ITT1: tmpreg=0x005; break;
+ case DTT0: tmpreg=0x006; break;
+ case DTT1: tmpreg=0x007; break;
+
+ case USP: tmpreg=0x800; break;
+ case VBR: tmpreg=0x801; break;
+ case CAAR: tmpreg=0x802; break;
+ case MSP: tmpreg=0x803; break;
+ case ISP: tmpreg=0x804; break;
+ case MMUSR: tmpreg=0x805; break;
+ case URP: tmpreg=0x806; break;
+ case SRP: tmpreg=0x807; break;
+ default:
+ as_fatal("failed sanity check.");
+ }
+ install_operand(s[1],tmpreg);
+ break;
+
case 'k':
- if(opP->mode!=IMMED)
- losing++;
- break;
-
+ tmpreg=get_num(opP->con1,55);
+ install_operand(s[1],tmpreg&0x7f);
+ break;
+
case 'l':
+ tmpreg=opP->reg;
+ if(s[1]=='w') {
+ if(tmpreg&0x7FF0000)
+ as_bad("Floating point register in register list");
+ insop(reverse_16_bits(tmpreg));
+ } else {
+ if(tmpreg&0x700FFFF)
+ as_bad("Wrong register in floating-point reglist");
+ install_operand(s[1],reverse_8_bits(tmpreg>>16));
+ }
+ break;
+
case 'L':
- if(opP->mode==DREG || opP->mode==AREG || opP->mode==FPREG) {
- if(s[1]=='8')
- losing++;
- else {
- opP->mode=REGLST;
- opP->reg=1<<(opP->reg-DATA);
+ tmpreg=opP->reg;
+ if(s[1]=='w') {
+ if(tmpreg&0x7FF0000)
+ as_bad("Floating point register in register list");
+ insop(tmpreg);
+ } else if(s[1]=='8') {
+ if(tmpreg&0x0FFFFFF)
+ as_bad("incorrect register in reglist");
+ install_operand(s[1],tmpreg>>24);
+ } else {
+ if(tmpreg&0x700FFFF)
+ as_bad("wrong register in floating-point reglist");
+ else
+ install_operand(s[1],tmpreg>>16);
}
- } else if(opP->mode!=REGLST) {
- losing++;
- } else if(s[1]=='8' && opP->reg&0x0FFffFF)
- losing++;
- else if(s[1]=='3' && opP->reg&0x7000000)
- losing++;
- break;
-
+ break;
+
case 'M':
- if(opP->mode!=IMMED)
- losing++;
- else {
- long t;
+ install_operand(s[1],get_num(opP->con1,60));
+ break;
- t=get_num(opP->con1,80);
- if(!issbyte(t) || isvar(opP->con1))
- losing++;
- }
- break;
-
case 'O':
- if(opP->mode!=DREG && opP->mode!=IMMED)
- losing++;
- break;
-
+ tmpreg= (opP->mode==DREG)
+ ? 0x20+opP->reg-DATA
+ : (get_num(opP->con1,40)&0x1F);
+ install_operand(s[1],tmpreg);
+ break;
+
case 'Q':
- if(opP->mode!=IMMED)
- losing++;
- else {
- long t;
+ tmpreg=get_num(opP->con1,10);
+ if(tmpreg==8)
+ tmpreg=0;
+ install_operand(s[1],tmpreg);
+ break;
- t=get_num(opP->con1,80);
- if(t<1 || t>8 || isvar(opP->con1))
- losing++;
- }
- break;
-
case 'R':
- if(opP->mode!=DREG && opP->mode!=AREG)
- losing++;
- break;
-
+ /* This depends on the fact that ADDR registers are
+ eight more than their corresponding DATA regs, so
+ the result will have the ADDR_REG bit set */
+ install_operand(s[1],opP->reg-DATA);
+ break;
+
case 's':
- if(opP->mode!=MSCR || !(opP->reg==FPI || opP->reg==FPS || opP->reg==FPC))
- losing++;
- break;
-
- case 'S':
- if(opP->mode!=MSCR || opP->reg!=SR)
- losing++;
- break;
-
- case 'U':
- if(opP->mode!=MSCR || opP->reg!=USP)
- losing++;
- break;
-
- /* JF these are out of order. We could put them
- in order if we were willing to put up with
- bunches of #ifdef m68851s in the code */
-#ifndef NO_68851
- /* Memory addressing mode used by pflushr */
- case '|':
- if(opP->mode==MSCR || opP->mode==DREG ||
- opP->mode==AREG || opP->mode==REGLST)
- losing++;
- break;
-
- case 'f':
- if (opP->mode != MSCR || (opP->reg != SFC && opP->reg != DFC))
- losing++;
- break;
-
- case 'P':
- if (opP->mode != MSCR || (opP->reg != TC && opP->reg != CAL &&
- opP->reg != VAL && opP->reg != SCC && opP->reg != AC))
- losing++;
- break;
-
- case 'V':
- if (opP->reg != VAL)
- losing++;
- break;
-
- case 'W':
- if (opP->mode != MSCR || (opP->reg != DRP && opP->reg != SRP &&
- opP->reg != CRP))
- losing++;
- break;
-
- case 'X':
- if (opP->mode != MSCR ||
- (!(opP->reg >= BAD && opP->reg <= BAD+7) &&
- !(opP->reg >= BAC && opP->reg <= BAC+7)))
- losing++;
- break;
-
- case 'Y':
- if (opP->reg != PSR)
- losing++;
- break;
-
- case 'Z':
- if (opP->reg != PCSR)
- losing++;
- break;
-#endif
+ if(opP->reg==FPI) tmpreg=0x1;
+ else if(opP->reg==FPS) tmpreg=0x2;
+ else if(opP->reg==FPC) tmpreg=0x4;
+ else as_fatal("failed sanity check.");
+ install_operand(s[1],tmpreg);
+ break;
+
+ case 'S': /* Ignore it */
+ break;
+
+ case 'T':
+ install_operand(s[1],get_num(opP->con1,30));
+ break;
+
+ case 'U': /* Ignore it */
+ break;
+
case 'c':
- if (opP->reg != NC
- && opP->reg != IC
- && opP->reg != DC
- && opP->reg != BC) {
- losing++;
- } /* not a cache specifier. */
- break;
-
- case '_':
- if (opP->mode != ABSL) {
- ++losing;
- } /* not absolute */
- break;
-
- default:
- as_fatal("Internal error: Operand mode %c unknown in line %s of file \"%s\"",
- *s, __LINE__, __FILE__);
- } /* switch on type of operand */
-
- if (losing) break;
- } /* for each operand */
- } /* if immediately wrong */
-
- if (!losing) {
- break;
- } /* got it. */
-
- opcode = opcode->m_next;
-
- if (!opcode) {
- the_ins.error = "instruction/operands mismatch";
- return;
- } /* Fell off the end */
-
- losing = 0;
- }
-
- /* now assemble it */
-
- the_ins.args=opcode->m_operands;
- the_ins.numargs=opcode->m_opnum;
- the_ins.numo=opcode->m_codenum;
- the_ins.opcode[0]=getone(opcode);
- the_ins.opcode[1]=gettwo(opcode);
-
- for (s = the_ins.args, opP = &the_ins.operands[0]; *s; s += 2, opP++) {
- /* This switch is a doozy.
- Watch the first step; its a big one! */
- switch(s[0]) {
-
- case '*':
- case '~':
- case '%':
- case ';':
- case '@':
- case '!':
- case '&':
- case '$':
- case '?':
- case '/':
+ switch (opP->reg) {
+ case NC: tmpreg = 0; break;
+ case DC: tmpreg = 1; break;
+ case IC: tmpreg = 2; break;
+ case BC: tmpreg = 3; break;
+ default:
+ as_fatal("failed sanity check");
+ } /* switch on cache token */
+ install_operand(s[1], tmpreg);
+ break;
#ifndef NO_68851
- case '|':
-#endif
- switch(opP->mode) {
- case IMMED:
- tmpreg=0x3c; /* 7.4 */
- if (strchr("bwl",s[1])) nextword=get_num(opP->con1,80);
- else nextword=nextword=get_num(opP->con1,0);
- if(isvar(opP->con1))
- add_fix(s[1],opP->con1,0);
- switch(s[1]) {
- case 'b':
- if(!isbyte(nextword))
- opP->error="operand out of range";
- addword(nextword);
- baseo=0;
- break;
- case 'w':
- if(!isword(nextword))
- opP->error="operand out of range";
- addword(nextword);
- baseo=0;
- break;
- case 'l':
- addword(nextword>>16);
- addword(nextword);
- baseo=0;
- break;
-
+ /* JF: These are out of order, I fear. */
case 'f':
- baseo=2;
- outro=8;
- break;
- case 'F':
- baseo=4;
- outro=11;
- break;
- case 'x':
- baseo=6;
- outro=15;
- break;
- case 'p':
- baseo=6;
- outro= -1;
- break;
- default:
- as_fatal("Internal error: Can't decode %c%c in line %s of file \"%s\"",
- *s, s[1], __LINE__, __FILE__);
- }
- if(!baseo)
- break;
-
- /* We gotta put out some float */
- if(seg(opP->con1)!=SEG_BIG) {
- int_to_gen(nextword);
- gen_to_words(words,baseo,(long int)outro);
- for(wordp=words;baseo--;wordp++)
- addword(*wordp);
- break;
- } /* Its BIG */
- if(offs(opP->con1)>0) {
- as_warn("Bignum assumed to be binary bit-pattern");
- if(offs(opP->con1)>baseo) {
- as_warn("Bignum too big for %c format; truncated",s[1]);
- offs(opP->con1)=baseo;
- }
- baseo-=offs(opP->con1);
- for(wordp=generic_bignum+offs(opP->con1)-1;offs(opP->con1)--;--wordp)
- addword(*wordp);
- while(baseo--)
- addword(0);
- break;
- }
- gen_to_words(words,baseo,(long)outro);
- for (wordp=words;baseo--;wordp++)
- addword(*wordp);
- break;
- case DREG:
- tmpreg=opP->reg-DATA; /* 0.dreg */
- break;
- case AREG:
- tmpreg=0x08+opP->reg-ADDR; /* 1.areg */
- break;
- case AINDR:
- tmpreg=0x10+opP->reg-ADDR; /* 2.areg */
- break;
- case ADEC:
- tmpreg=0x20+opP->reg-ADDR; /* 4.areg */
- break;
- case AINC:
- tmpreg=0x18+opP->reg-ADDR; /* 3.areg */
- break;
- case AOFF:
-
- nextword=get_num(opP->con1,80);
- /* Force into index mode. Hope this works */
-
- /* We do the first bit for 32-bit displacements,
- and the second bit for 16 bit ones. It is
- possible that we should make the default be
- WORD instead of LONG, but I think that'd
- break GCC, so we put up with a little
- inefficiency for the sake of working output.
- */
-
- if( !issword(nextword)
- || ( isvar(opP->con1)
- && ( ( opP->con1->e_siz==0
- && flagseen['l']==0)
- || opP->con1->e_siz==3))) {
-
- if(opP->reg==PC)
- tmpreg=0x3B; /* 7.3 */
- else
- tmpreg=0x30+opP->reg-ADDR; /* 6.areg */
- if(isvar(opP->con1)) {
- if(opP->reg==PC) {
- add_frag(adds(opP->con1),
- offs(opP->con1),
- TAB(PCLEA,SZ_UNDEF));
- break;
- } else {
- addword(0x0170);
- add_fix('l',opP->con1,1);
+ switch (opP->reg) {
+ case SFC:
+ tmpreg=0;
+ break;
+ case DFC:
+ tmpreg=1;
+ break;
+ default:
+ as_fatal("failed sanity check.");
}
- } else
- addword(0x0170);
- addword(nextword>>16);
- } else {
- if(opP->reg==PC)
- tmpreg=0x3A; /* 7.2 */
- else
- tmpreg=0x28+opP->reg-ADDR; /* 5.areg */
-
- if(isvar(opP->con1)) {
- if(opP->reg==PC) {
- add_fix('w',opP->con1,1);
- } else
- add_fix('w',opP->con1,0);
- }
- }
- addword(nextword);
- break;
-
- case APODX:
- case AMIND:
- case APRDX:
- know(current_architecture & m68020up);
- /* intentional fall-through */
- case AINDX:
- nextword=0;
- baseo=get_num(opP->con1,80);
- outro=get_num(opP->con2,80);
- /* Figure out the 'addressing mode' */
- /* Also turn on the BASE_DISABLE bit, if needed */
- if(opP->reg==PC || opP->reg==ZPC) {
- tmpreg=0x3b; /* 7.3 */
- if(opP->reg==ZPC)
- nextword|=0x80;
- } else if(opP->reg==FAIL) {
- nextword|=0x80;
- tmpreg=0x30; /* 6.garbage */
- } else tmpreg=0x30+opP->reg-ADDR; /* 6.areg */
-
- siz1= (opP->con1) ? opP->con1->e_siz : 0;
- siz2= (opP->con2) ? opP->con2->e_siz : 0;
-
- /* Index register stuff */
- if(opP->ireg>=DATA+0 && opP->ireg<=ADDR+7) {
- nextword|=(opP->ireg-DATA)<<12;
-
- if(opP->isiz==0 || opP->isiz==3)
- nextword|=0x800;
- switch(opP->imul) {
- case 1: break;
- case 2: nextword|=0x200; break;
- case 4: nextword|=0x400; break;
- case 8: nextword|=0x600; break;
- default: as_fatal("failed sanity check.");
- }
- /* IF its simple,
- GET US OUT OF HERE! */
-
- /* Must be INDEX, with an index
- register. Address register
- cannot be ZERO-PC, and either
- :b was forced, or we know
- it will fit */
- if( opP->mode==AINDX
- && opP->reg!=FAIL
- && opP->reg!=ZPC
- && ( siz1==1
- || ( issbyte(baseo)
- && !isvar(opP->con1)))) {
- nextword +=baseo&0xff;
- addword(nextword);
- if(isvar(opP->con1))
- add_fix('B',opP->con1,0);
+ install_operand(s[1],tmpreg);
break;
- }
- } else
- nextword|=0x40; /* No index reg */
-
- /* It aint simple */
- nextword|=0x100;
- /* If the guy specified a width, we assume that
- it is wide enough. Maybe it isn't. If so, we lose
- */
- switch(siz1) {
- case 0:
- if(isvar(opP->con1) || !issword(baseo)) {
- siz1=3;
- nextword|=0x30;
- } else if(baseo==0)
- nextword|=0x10;
- else {
- nextword|=0x20;
- siz1=2;
- }
- break;
- case 1:
- as_warn("Byte dispacement won't work. Defaulting to :w");
- case 2:
- nextword|=0x20;
- break;
- case 3:
- nextword|=0x30;
- break;
- }
-
- /* Figure out innner displacement stuff */
- if(opP->mode!=AINDX) {
- switch(siz2) {
- case 0:
- if(isvar(opP->con2) || !issword(outro)) {
- siz2=3;
- nextword|=0x3;
- } else if(outro==0)
- nextword|=0x1;
- else {
- nextword|=0x2;
- siz2=2;
+
+ case 'P':
+ switch(opP->reg) {
+ case TC:
+ tmpreg=0;
+ break;
+ case CAL:
+ tmpreg=4;
+ break;
+ case VAL:
+ tmpreg=5;
+ break;
+ case SCC:
+ tmpreg=6;
+ break;
+ case AC:
+ tmpreg=7;
+ break;
+ default:
+ as_fatal("failed sanity check.");
}
+ install_operand(s[1],tmpreg);
break;
- case 1:
- as_warn("Byte dispacement won't work. Defaulting to :w");
- case 2:
- nextword|=0x2;
+
+ case 'V':
+ if (opP->reg == VAL)
+ break;
+ as_fatal("failed sanity check.");
+
+ case 'W':
+ switch(opP->reg) {
+
+ case DRP:
+ tmpreg=1;
+ break;
+ case SRP:
+ tmpreg=2;
+ break;
+ case CRP:
+ tmpreg=3;
+ break;
+ default:
+ as_fatal("failed sanity check.");
+ }
+ install_operand(s[1],tmpreg);
break;
- case 3:
- nextword|=0x3;
+
+ case 'X':
+ switch (opP->reg) {
+ case BAD: case BAD+1: case BAD+2: case BAD+3:
+ case BAD+4: case BAD+5: case BAD+6: case BAD+7:
+ tmpreg = (4 << 10) | ((opP->reg - BAD) << 2);
+ break;
+
+ case BAC: case BAC+1: case BAC+2: case BAC+3:
+ case BAC+4: case BAC+5: case BAC+6: case BAC+7:
+ tmpreg = (5 << 10) | ((opP->reg - BAC) << 2);
+ break;
+
+ default:
+ as_fatal("failed sanity check.");
+ }
+ install_operand(s[1], tmpreg);
break;
- }
- if(opP->mode==APODX) nextword|=0x04;
- else if(opP->mode==AMIND) nextword|=0x40;
- }
- addword(nextword);
-
- if(isvar(opP->con1)) {
- if(opP->reg==PC || opP->reg==ZPC) {
- add_fix(siz1==3 ? 'l' : 'w',opP->con1,1);
- opP->con1->e_exp.X_add_number+=6;
- } else
- add_fix(siz1==3 ? 'l' : 'w',opP->con1,0);
- }
- if(siz1==3)
- addword(baseo>>16);
- if(siz1)
- addword(baseo);
-
- if(isvar(opP->con2)) {
- if(opP->reg==PC || opP->reg==ZPC) {
- add_fix(siz2==3 ? 'l' : 'w',opP->con2,1);
- opP->con1->e_exp.X_add_number+=6;
- } else
- add_fix(siz2==3 ? 'l' : 'w',opP->con2,0);
- }
- if(siz2==3)
- addword(outro>>16);
- if(siz2)
- addword(outro);
-
- break;
-
- case ABSL:
- nextword=get_num(opP->con1,80);
- switch(opP->con1->e_siz) {
- default:
- as_warn("Unknown size for absolute reference");
- case 0:
- if(!isvar(opP->con1) && issword(offs(opP->con1))) {
- tmpreg=0x38; /* 7.0 */
- addword(nextword);
+ case 'Y':
+ know(opP->reg == PSR);
break;
- }
- /* Don't generate pc relative code
- on 68010 and 68000 */
- if(isvar(opP->con1)
- && !subs(opP->con1)
- && seg(opP->con1) == SEG_TEXT
- && now_seg == SEG_TEXT
- && cpu_of_arch(current_architecture) < m68020
- && !flagseen['S']
- && !strchr("~%&$?", s[0])) {
- tmpreg=0x3A; /* 7.2 */
- add_frag(adds(opP->con1),
- offs(opP->con1),
- TAB(PCREL,SZ_UNDEF));
+ case 'Z':
+ know(opP->reg == PCSR);
break;
- }
- case 3: /* Fall through into long */
- if(isvar(opP->con1))
- add_fix('l',opP->con1,0);
-
- tmpreg=0x39; /* 7.1 mode */
- addword(nextword>>16);
- addword(nextword);
- break;
-
- case 2: /* Word */
- if(isvar(opP->con1))
- add_fix('w',opP->con1,0);
-
- tmpreg=0x38; /* 7.0 mode */
- addword(nextword);
- break;
- }
- break;
- case MSCR:
- default:
- as_bad("unknown/incorrect operand");
- /* abort(); */
- }
- install_gen_operand(s[1],tmpreg);
- break;
-
- case '#':
- case '^':
- switch(s[1]) { /* JF: I hate floating point! */
- case 'j':
- tmpreg=70;
- break;
- case '8':
- tmpreg=20;
- break;
- case 'C':
- tmpreg=50;
- break;
- case '3':
- default:
- tmpreg=80;
- break;
- }
- tmpreg=get_num(opP->con1,tmpreg);
- if(isvar(opP->con1))
- add_fix(s[1],opP->con1,0);
- switch(s[1]) {
- case 'b': /* Danger: These do no check for
- certain types of overflow.
- user beware! */
- if(!isbyte(tmpreg))
- opP->error="out of range";
- insop(tmpreg);
- if(isvar(opP->con1))
- the_ins.reloc[the_ins.nrel-1].n=(opcode->m_codenum)*2;
- break;
- case 'w':
- if(!isword(tmpreg))
- opP->error="out of range";
- insop(tmpreg);
- if(isvar(opP->con1))
- the_ins.reloc[the_ins.nrel-1].n=(opcode->m_codenum)*2;
- break;
- case 'l':
- insop(tmpreg); /* Because of the way insop works, we put these two out backwards */
- insop(tmpreg>>16);
- if(isvar(opP->con1))
- the_ins.reloc[the_ins.nrel-1].n=(opcode->m_codenum)*2;
- break;
- case '3':
- tmpreg&=0xFF;
- case '8':
- case 'C':
- install_operand(s[1],tmpreg);
- break;
- default:
- as_fatal("Internal error: Unknown mode #%c in line %s of file \"%s\"", s[1], __LINE__, __FILE__);
- }
- break;
-
- case '+':
- case '-':
- case 'A':
- case 'a':
- install_operand(s[1],opP->reg-ADDR);
- break;
-
- case 'B':
- tmpreg=get_num(opP->con1,80);
- switch(s[1]) {
- case 'B':
- /* Needs no offsetting */
- add_fix('B',opP->con1,1);
- break;
- case 'W':
- /* Offset the displacement to be relative to byte disp location */
- opP->con1->e_exp.X_add_number+=2;
- add_fix('w',opP->con1,1);
- addword(0);
- break;
- case 'L':
- long_branch:
- if (cpu_of_arch(current_architecture) < m68020) /* 68000 or 010 */
- as_warn("Can't use long branches on 68000/68010");
- the_ins.opcode[the_ins.numo-1]|=0xff;
- /* Offset the displacement to be relative to byte disp location */
- opP->con1->e_exp.X_add_number+=4;
- add_fix('l',opP->con1,1);
- addword(0);
- addword(0);
- break;
- case 'g':
- if(subs(opP->con1)) /* We can't relax it */
- goto long_branch;
-
- /* This could either be a symbol, or an
- absolute address. No matter, the
- frag hacking will finger it out.
- Not quite: it can't switch from
- BRANCH to BCC68000 for the case
- where opnd is absolute (it needs
- to use the 68000 hack since no
- conditional abs jumps). */
- if (((cpu_of_arch(current_architecture) < m68020) || (0==adds(opP->con1)))
- && (the_ins.opcode[0] >= 0x6200)
- && (the_ins.opcode[0] <= 0x6f00)) {
- add_frag(adds(opP->con1),offs(opP->con1),TAB(BCC68000,SZ_UNDEF));
- } else {
- add_frag(adds(opP->con1),offs(opP->con1),TAB(BRANCH,SZ_UNDEF));
- }
- break;
- case 'w':
- if(isvar(opP->con1)) {
- /* check for DBcc instruction */
- if ((the_ins.opcode[0] & 0xf0f8) ==0x50c8) {
- /* size varies if patch */
- /* needed for long form */
- add_frag(adds(opP->con1),offs(opP->con1),TAB(DBCC,SZ_UNDEF));
+#endif /* m68851 */
+ case '_':
+ tmpreg=get_num(opP->con1,80);
+ install_operand(s[1], tmpreg);
break;
- }
-
- /* Don't ask! */
- opP->con1->e_exp.X_add_number+=2;
- add_fix('w',opP->con1,1);
- }
- addword(0);
- break;
- case 'C': /* Fixed size LONG coproc branches */
- the_ins.opcode[the_ins.numo-1]|=0x40;
- /* Offset the displacement to be relative to byte disp location */
- /* Coproc branches don't have a byte disp option, but they are
- compatible with the ordinary branches, which do... */
- opP->con1->e_exp.X_add_number+=4;
- add_fix('l',opP->con1,1);
- addword(0);
- addword(0);
- break;
- case 'c': /* Var size Coprocesssor branches */
- if(subs(opP->con1)) {
- add_fix('l',opP->con1,1);
- add_frag((symbolS *)0,(long)0,TAB(FBRANCH,LONG));
- } else if(adds(opP->con1)) {
- add_frag(adds(opP->con1),offs(opP->con1),TAB(FBRANCH,SZ_UNDEF));
- } else {
- /* add_frag((symbolS *)0,offs(opP->con1),TAB(FBRANCH,SHORT)); */
- the_ins.opcode[the_ins.numo-1]|=0x40;
- add_fix('l',opP->con1,1);
- addword(0);
- addword(4);
+ default:
+ as_fatal("Internal error: Operand type %c unknown in line %s of file \"%s\"", s[0], __LINE__, __FILE__);
}
- break;
- default:
- as_fatal("Internal error: operand type B%c unknown in line %s of file \"%s\"",
- s[1], __LINE__, __FILE__);
- }
- break;
-
- case 'C': /* Ignore it */
- break;
-
- case 'd': /* JF this is a kludge */
- if(opP->mode==AOFF) {
- install_operand('s',opP->reg-ADDR);
- } else {
- char *tmpP;
-
- tmpP=opP->con1->e_end-2;
- opP->con1->e_beg++;
- opP->con1->e_end-=4; /* point to the , */
- baseo=m68k_reg_parse(&tmpP);
- if(baseo<ADDR+0 || baseo>ADDR+7) {
- as_bad("Unknown address reg, using A0");
- baseo=0;
- } else baseo-=ADDR;
- install_operand('s',baseo);
- }
- tmpreg=get_num(opP->con1,80);
- if(!issword(tmpreg)) {
- as_warn("Expression out of range, using 0");
- tmpreg=0;
- }
- addword(tmpreg);
- break;
-
- case 'D':
- install_operand(s[1],opP->reg-DATA);
- break;
-
- case 'F':
- install_operand(s[1],opP->reg-FPREG);
- break;
-
- case 'I':
- tmpreg=1+opP->reg-COPNUM;
- if(tmpreg==8)
- tmpreg=0;
- install_operand(s[1],tmpreg);
- break;
-
- case 'J': /* JF foo */
- switch(opP->reg) {
- case SFC: tmpreg=0x000; break;
- case DFC: tmpreg=0x001; break;
- case CACR: tmpreg=0x002; break;
- case TC: tmpreg=0x003; break;
- case ITT0: tmpreg=0x004; break;
- case ITT1: tmpreg=0x005; break;
- case DTT0: tmpreg=0x006; break;
- case DTT1: tmpreg=0x007; break;
-
- case USP: tmpreg=0x800; break;
- case VBR: tmpreg=0x801; break;
- case CAAR: tmpreg=0x802; break;
- case MSP: tmpreg=0x803; break;
- case ISP: tmpreg=0x804; break;
- case MMUSR: tmpreg=0x805; break;
- case URP: tmpreg=0x806; break;
- case SRP: tmpreg=0x807; break;
- default:
- as_fatal("failed sanity check.");
- }
- install_operand(s[1],tmpreg);
- break;
-
- case 'k':
- tmpreg=get_num(opP->con1,55);
- install_operand(s[1],tmpreg&0x7f);
- break;
-
- case 'l':
- tmpreg=opP->reg;
- if(s[1]=='w') {
- if(tmpreg&0x7FF0000)
- as_bad("Floating point register in register list");
- insop(reverse_16_bits(tmpreg));
- } else {
- if(tmpreg&0x700FFFF)
- as_bad("Wrong register in floating-point reglist");
- install_operand(s[1],reverse_8_bits(tmpreg>>16));
- }
- break;
-
- case 'L':
- tmpreg=opP->reg;
- if(s[1]=='w') {
- if(tmpreg&0x7FF0000)
- as_bad("Floating point register in register list");
- insop(tmpreg);
- } else if(s[1]=='8') {
- if(tmpreg&0x0FFFFFF)
- as_bad("incorrect register in reglist");
- install_operand(s[1],tmpreg>>24);
- } else {
- if(tmpreg&0x700FFFF)
- as_bad("wrong register in floating-point reglist");
- else
- install_operand(s[1],tmpreg>>16);
- }
- break;
-
- case 'M':
- install_operand(s[1],get_num(opP->con1,60));
- break;
-
- case 'O':
- tmpreg= (opP->mode==DREG)
- ? 0x20+opP->reg-DATA
- : (get_num(opP->con1,40)&0x1F);
- install_operand(s[1],tmpreg);
- break;
-
- case 'Q':
- tmpreg=get_num(opP->con1,10);
- if(tmpreg==8)
- tmpreg=0;
- install_operand(s[1],tmpreg);
- break;
-
- case 'R':
- /* This depends on the fact that ADDR registers are
- eight more than their corresponding DATA regs, so
- the result will have the ADDR_REG bit set */
- install_operand(s[1],opP->reg-DATA);
- break;
-
- case 's':
- if(opP->reg==FPI) tmpreg=0x1;
- else if(opP->reg==FPS) tmpreg=0x2;
- else if(opP->reg==FPC) tmpreg=0x4;
- else as_fatal("failed sanity check.");
- install_operand(s[1],tmpreg);
- break;
-
- case 'S': /* Ignore it */
- break;
-
- case 'T':
- install_operand(s[1],get_num(opP->con1,30));
- break;
-
- case 'U': /* Ignore it */
- break;
-
- case 'c':
- switch (opP->reg) {
- case NC: tmpreg = 0; break;
- case DC: tmpreg = 1; break;
- case IC: tmpreg = 2; break;
- case BC: tmpreg = 3; break;
- default:
- as_fatal("failed sanity check");
- } /* switch on cache token */
- install_operand(s[1], tmpreg);
- break;
-#ifndef NO_68851
- /* JF: These are out of order, I fear. */
- case 'f':
- switch (opP->reg) {
- case SFC:
- tmpreg=0;
- break;
- case DFC:
- tmpreg=1;
- break;
- default:
- as_fatal("failed sanity check.");
- }
- install_operand(s[1],tmpreg);
- break;
-
- case 'P':
- switch(opP->reg) {
- case TC:
- tmpreg=0;
- break;
- case CAL:
- tmpreg=4;
- break;
- case VAL:
- tmpreg=5;
- break;
- case SCC:
- tmpreg=6;
- break;
- case AC:
- tmpreg=7;
- break;
- default:
- as_fatal("failed sanity check.");
- }
- install_operand(s[1],tmpreg);
- break;
-
- case 'V':
- if (opP->reg == VAL)
- break;
- as_fatal("failed sanity check.");
-
- case 'W':
- switch(opP->reg) {
-
- case DRP:
- tmpreg=1;
- break;
- case SRP:
- tmpreg=2;
- break;
- case CRP:
- tmpreg=3;
- break;
- default:
- as_fatal("failed sanity check.");
- }
- install_operand(s[1],tmpreg);
- break;
-
- case 'X':
- switch (opP->reg) {
- case BAD: case BAD+1: case BAD+2: case BAD+3:
- case BAD+4: case BAD+5: case BAD+6: case BAD+7:
- tmpreg = (4 << 10) | ((opP->reg - BAD) << 2);
- break;
-
- case BAC: case BAC+1: case BAC+2: case BAC+3:
- case BAC+4: case BAC+5: case BAC+6: case BAC+7:
- tmpreg = (5 << 10) | ((opP->reg - BAC) << 2);
- break;
-
- default:
- as_fatal("failed sanity check.");
- }
- install_operand(s[1], tmpreg);
- break;
- case 'Y':
- know(opP->reg == PSR);
- break;
- case 'Z':
- know(opP->reg == PCSR);
- break;
-#endif /* m68851 */
- case '_':
- tmpreg=get_num(opP->con1,80);
- install_operand(s[1], tmpreg);
- break;
- default:
- as_fatal("Internal error: Operand type %c unknown in line %s of file \"%s\"", s[0], __LINE__, __FILE__);
}
- }
- /* By the time whe get here (FINALLY) the_ins contains the complete
- instruction, ready to be emitted. . . */
+ /* By the time whe get here (FINALLY) the_ins contains the complete
+ instruction, ready to be emitted. . . */
} /* m68k_ip() */
/*
*/
static int get_regs(i,str,opP)
- int i;
- struct m68k_op *opP;
- char *str;
+int i;
+struct m68k_op *opP;
+char *str;
{
- /* 26, 25, 24, 23-16, 15-8, 0-7 */
- /* Low order 24 bits encoded fpc,fps,fpi,fp7-fp0,a7-a0,d7-d0 */
- unsigned long cur_regs = 0;
- int reg1,
- reg2;
-
+ /* 26, 25, 24, 23-16, 15-8, 0-7 */
+ /* Low order 24 bits encoded fpc,fps,fpi,fp7-fp0,a7-a0,d7-d0 */
+ unsigned long cur_regs = 0;
+ int reg1,
+ reg2;
+
#define ADD_REG(x) { if(x==FPI) cur_regs|=(1<<24);\
else if(x==FPS) cur_regs|=(1<<25);\
else if(x==FPC) cur_regs|=(1<<26);\
else cur_regs|=(1<<(x-1)); }
-
- reg1=i;
- for(;;) {
- if(*str=='/') {
- ADD_REG(reg1);
- str++;
- } else if(*str=='-') {
- str++;
- reg2=m68k_reg_parse(&str);
- if(reg2<DATA || reg2>=FPREG+8 || reg1==FPI || reg1==FPS || reg1==FPC) {
- opP->error="unknown register in register list";
- return FAIL;
- }
- while(reg1<=reg2) {
- ADD_REG(reg1);
- reg1++;
- }
- if(*str=='\0')
- break;
- } else if(*str=='\0') {
- ADD_REG(reg1);
- break;
- } else {
- opP->error="unknow character in register list";
- return FAIL;
- }
- /* DJA -- Bug Fix. Did't handle d1-d2/a1 until the following instruction was added */
- if (*str=='/')
- str ++;
- reg1=m68k_reg_parse(&str);
- if((reg1<DATA || reg1>=FPREG+8) && !(reg1==FPI || reg1==FPS || reg1==FPC)) {
- opP->error="unknown register in register list";
- return FAIL;
+
+ reg1=i;
+ for(;;) {
+ if(*str=='/') {
+ ADD_REG(reg1);
+ str++;
+ } else if(*str=='-') {
+ str++;
+ reg2=m68k_reg_parse(&str);
+ if(reg2<DATA || reg2>=FPREG+8 || reg1==FPI || reg1==FPS || reg1==FPC) {
+ opP->error="unknown register in register list";
+ return FAIL;
+ }
+ while(reg1<=reg2) {
+ ADD_REG(reg1);
+ reg1++;
+ }
+ if(*str=='\0')
+ break;
+ } else if(*str=='\0') {
+ ADD_REG(reg1);
+ break;
+ } else {
+ opP->error="unknow character in register list";
+ return FAIL;
+ }
+ /* DJA -- Bug Fix. Did't handle d1-d2/a1 until the following instruction was added */
+ if (*str=='/')
+ str ++;
+ reg1=m68k_reg_parse(&str);
+ if((reg1<DATA || reg1>=FPREG+8) && !(reg1==FPI || reg1==FPS || reg1==FPC)) {
+ opP->error="unknown register in register list";
+ return FAIL;
+ }
}
- }
- opP->reg=cur_regs;
- return OK;
+ opP->reg=cur_regs;
+ return OK;
} /* get_regs() */
static int reverse_16_bits(in)
- int in;
+int in;
{
- int out=0;
- int n;
-
- static int mask[16] = {
- 0x0001,0x0002,0x0004,0x0008,0x0010,0x0020,0x0040,0x0080,
- 0x0100,0x0200,0x0400,0x0800,0x1000,0x2000,0x4000,0x8000
- };
- for(n=0;n<16;n++) {
- if(in&mask[n])
- out|=mask[15-n];
- }
- return out;
+ int out=0;
+ int n;
+
+ static int mask[16] = {
+ 0x0001,0x0002,0x0004,0x0008,0x0010,0x0020,0x0040,0x0080,
+ 0x0100,0x0200,0x0400,0x0800,0x1000,0x2000,0x4000,0x8000
+ };
+ for(n=0;n<16;n++) {
+ if(in&mask[n])
+ out|=mask[15-n];
+ }
+ return out;
} /* reverse_16_bits() */
static int reverse_8_bits(in)
- int in;
+int in;
{
- int out=0;
- int n;
-
- static int mask[8] = {
- 0x0001,0x0002,0x0004,0x0008,0x0010,0x0020,0x0040,0x0080,
- };
-
- for(n=0;n<8;n++) {
- if(in&mask[n])
- out|=mask[7-n];
- }
- return out;
+ int out=0;
+ int n;
+
+ static int mask[8] = {
+ 0x0001,0x0002,0x0004,0x0008,0x0010,0x0020,0x0040,0x0080,
+ };
+
+ for(n=0;n<8;n++) {
+ if(in&mask[n])
+ out|=mask[7-n];
+ }
+ return out;
} /* reverse_8_bits() */
static void install_operand(mode,val)
- int mode;
- int val;
+int mode;
+int val;
{
- switch(mode) {
- case 's':
- the_ins.opcode[0]|=val & 0xFF; /* JF FF is for M kludge */
- break;
- case 'd':
- the_ins.opcode[0]|=val<<9;
- break;
- case '1':
- the_ins.opcode[1]|=val<<12;
- break;
- case '2':
- the_ins.opcode[1]|=val<<6;
- break;
- case '3':
- the_ins.opcode[1]|=val;
- break;
- case '4':
- the_ins.opcode[2]|=val<<12;
- break;
- case '5':
- the_ins.opcode[2]|=val<<6;
- break;
- case '6':
- /* DANGER! This is a hack to force cas2l and cas2w cmds
- to be three words long! */
- the_ins.numo++;
- the_ins.opcode[2]|=val;
- break;
- case '7':
- the_ins.opcode[1]|=val<<7;
- break;
- case '8':
- the_ins.opcode[1]|=val<<10;
- break;
-#ifndef NO_68851
- case '9':
- the_ins.opcode[1]|=val<<5;
- break;
-#endif
-
- case 't':
- the_ins.opcode[1]|=(val<<10)|(val<<7);
- break;
- case 'D':
- the_ins.opcode[1]|=(val<<12)|val;
- break;
- case 'g':
- the_ins.opcode[0]|=val=0xff;
- break;
- case 'i':
- the_ins.opcode[0]|=val<<9;
- break;
- case 'C':
- the_ins.opcode[1]|=val;
- break;
- case 'j':
- the_ins.opcode[1]|=val;
- the_ins.numo++; /* What a hack */
- break;
- case 'k':
- the_ins.opcode[1]|=val<<4;
- break;
- case 'b':
- case 'w':
- case 'l':
- break;
- case 'e':
- the_ins.opcode[0] |= (val << 6);
- break;
- case 'L':
- the_ins.opcode[1] = (val >> 16);
- the_ins.opcode[2] = val & 0xffff;
- break;
- case 'c':
- default:
- as_fatal("failed sanity check.");
- }
+ switch(mode) {
+ case 's':
+ the_ins.opcode[0]|=val & 0xFF; /* JF FF is for M kludge */
+ break;
+ case 'd':
+ the_ins.opcode[0]|=val<<9;
+ break;
+ case '1':
+ the_ins.opcode[1]|=val<<12;
+ break;
+ case '2':
+ the_ins.opcode[1]|=val<<6;
+ break;
+ case '3':
+ the_ins.opcode[1]|=val;
+ break;
+ case '4':
+ the_ins.opcode[2]|=val<<12;
+ break;
+ case '5':
+ the_ins.opcode[2]|=val<<6;
+ break;
+ case '6':
+ /* DANGER! This is a hack to force cas2l and cas2w cmds
+ to be three words long! */
+ the_ins.numo++;
+ the_ins.opcode[2]|=val;
+ break;
+ case '7':
+ the_ins.opcode[1]|=val<<7;
+ break;
+ case '8':
+ the_ins.opcode[1]|=val<<10;
+ break;
+#ifndef NO_68851
+ case '9':
+ the_ins.opcode[1]|=val<<5;
+ break;
+#endif
+
+ case 't':
+ the_ins.opcode[1]|=(val<<10)|(val<<7);
+ break;
+ case 'D':
+ the_ins.opcode[1]|=(val<<12)|val;
+ break;
+ case 'g':
+ the_ins.opcode[0]|=val=0xff;
+ break;
+ case 'i':
+ the_ins.opcode[0]|=val<<9;
+ break;
+ case 'C':
+ the_ins.opcode[1]|=val;
+ break;
+ case 'j':
+ the_ins.opcode[1]|=val;
+ the_ins.numo++; /* What a hack */
+ break;
+ case 'k':
+ the_ins.opcode[1]|=val<<4;
+ break;
+ case 'b':
+ case 'w':
+ case 'l':
+ break;
+ case 'e':
+ the_ins.opcode[0] |= (val << 6);
+ break;
+ case 'L':
+ the_ins.opcode[1] = (val >> 16);
+ the_ins.opcode[2] = val & 0xffff;
+ break;
+ case 'c':
+ default:
+ as_fatal("failed sanity check.");
+ }
} /* install_operand() */
static void install_gen_operand(mode,val)
- int mode;
- int val;
+int mode;
+int val;
{
- switch(mode) {
- case 's':
- the_ins.opcode[0]|=val;
- break;
- case 'd':
- /* This is a kludge!!! */
- the_ins.opcode[0]|=(val&0x07)<<9|(val&0x38)<<3;
- break;
- case 'b':
- case 'w':
- case 'l':
- case 'f':
- case 'F':
- case 'x':
- case 'p':
- the_ins.opcode[0]|=val;
- break;
- /* more stuff goes here */
- default:
- as_fatal("failed sanity check.");
- }
+ switch(mode) {
+ case 's':
+ the_ins.opcode[0]|=val;
+ break;
+ case 'd':
+ /* This is a kludge!!! */
+ the_ins.opcode[0]|=(val&0x07)<<9|(val&0x38)<<3;
+ break;
+ case 'b':
+ case 'w':
+ case 'l':
+ case 'f':
+ case 'F':
+ case 'x':
+ case 'p':
+ the_ins.opcode[0]|=val;
+ break;
+ /* more stuff goes here */
+ default:
+ as_fatal("failed sanity check.");
+ }
} /* install_gen_operand() */
/*
*/
static char *crack_operand(str,opP)
- register char *str;
- register struct m68k_op *opP;
+register char *str;
+register struct m68k_op *opP;
{
- register int parens;
- register int c;
- register char *beg_str;
-
- if(!str) {
- return str;
- }
- beg_str=str;
- for(parens=0;*str && (parens>0 || notend(str));str++) {
- if(*str=='(') parens++;
- else if(*str==')') {
- if(!parens) { /* ERROR */
- opP->error="Extra )";
+ register int parens;
+ register int c;
+ register char *beg_str;
+
+ if(!str) {
+ return str;
+ }
+ beg_str=str;
+ for(parens=0;*str && (parens>0 || notend(str));str++) {
+ if(*str=='(') parens++;
+ else if(*str==')') {
+ if(!parens) { /* ERROR */
+ opP->error="Extra )";
+ return str;
+ }
+ --parens;
+ }
+ }
+ if(!*str && parens) { /* ERROR */
+ opP->error="Missing )";
+ return str;
+ }
+ c= *str;
+ *str='\0';
+ if(m68k_ip_op(beg_str,opP)==FAIL) {
+ *str=c;
return str;
- }
- --parens;
}
- }
- if(!*str && parens) { /* ERROR */
- opP->error="Missing )";
- return str;
- }
- c= *str;
- *str='\0';
- if(m68k_ip_op(beg_str,opP)==FAIL) {
*str=c;
+ if(c=='}')
+ c= *++str; /* JF bitfield hack */
+ if(c) {
+ c= *++str;
+ if(!c)
+ as_bad("Missing operand");
+ }
return str;
- }
- *str=c;
- if(c=='}')
- c= *++str; /* JF bitfield hack */
- if(c) {
- c= *++str;
- if(!c)
- as_bad("Missing operand");
- }
- return str;
}
/* See the comment up above where the #define notend(... is */
#if 0
notend(s)
- char *s;
+char *s;
{
- if(*s==',') return 0;
- if(*s=='{' || *s=='}')
- return 0;
- if(*s!=':') return 1;
- /* This kludge here is for the division cmd, which is a kludge */
- if(index("aAdD#",s[1])) return 0;
- return 1;
+ if(*s==',') return 0;
+ if(*s=='{' || *s=='}')
+ return 0;
+ if(*s!=':') return 1;
+ /* This kludge here is for the division cmd, which is a kludge */
+ if(index("aAdD#",s[1])) return 0;
+ return 1;
}
#endif
md_assemble(str)
char *str;
{
- char *er;
- short *fromP;
- char *toP = NULL;
- int m,n = 0;
- char *to_beg_P;
- int shorts_this_frag;
-
-
- if (current_architecture == 0) {
- current_architecture = (m68020
+ char *er;
+ short *fromP;
+ char *toP = NULL;
+ int m,n = 0;
+ char *to_beg_P;
+ int shorts_this_frag;
+
+
+ if (current_architecture == 0) {
+ current_architecture = (m68020
#ifndef NO_68881
- | m68881
+ | m68881
#endif
#ifndef NO_68851
- | m68851
+ | m68851
#endif
- );
- } /* default current_architecture */
-
- bzero((char *)(&the_ins),sizeof(the_ins)); /* JF for paranoia sake */
- m68k_ip(str);
- er=the_ins.error;
- if(!er) {
- for(n=the_ins.numargs;n;--n)
- if(the_ins.operands[n].error) {
- er=the_ins.operands[n].error;
- break;
- }
- }
- if(er) {
- as_bad("\"%s\" -- Statement '%s' ignored",er,str);
- return;
- }
-
- if(the_ins.nfrag==0) { /* No frag hacking involved; just put it out */
- toP=frag_more(2*the_ins.numo);
- fromP= &the_ins.opcode[0];
- for(m=the_ins.numo;m;--m) {
- md_number_to_chars(toP,(long)(*fromP),2);
- toP+=2;
- fromP++;
+ );
+ } /* default current_architecture */
+
+ memset((char *)(&the_ins), '\0', sizeof(the_ins)); /* JF for paranoia sake */
+ m68k_ip(str);
+ er=the_ins.error;
+ if(!er) {
+ for(n=the_ins.numargs;n;--n)
+ if(the_ins.operands[n].error) {
+ er=the_ins.operands[n].error;
+ break;
+ }
}
- /* put out symbol-dependent info */
- for(m=0;m<the_ins.nrel;m++) {
- switch(the_ins.reloc[m].wid) {
- case 'B':
- n=1;
- break;
- case 'b':
- n=1;
- break;
- case '3':
- n=2;
- break;
- case 'w':
- n=2;
- break;
- case 'l':
- n=4;
- break;
- default:
- as_fatal("Don't know how to figure width of %c in md_assemble()",the_ins.reloc[m].wid);
- }
-
- fix_new(frag_now,
- (toP-frag_now->fr_literal)-the_ins.numo*2+the_ins.reloc[m].n,
- n,
- the_ins.reloc[m].add,
- the_ins.reloc[m].sub,
- the_ins.reloc[m].off,
- the_ins.reloc[m].pcrel,
- NO_RELOC);
+ if(er) {
+ as_bad("\"%s\" -- Statement '%s' ignored",er,str);
+ return;
}
- return;
- }
-
- /* There's some frag hacking */
- for(n=0,fromP= &the_ins.opcode[0];n<the_ins.nfrag;n++) {
- int wid;
-
- if(n==0) wid=2*the_ins.fragb[n].fragoff;
- else wid=2*(the_ins.numo-the_ins.fragb[n-1].fragoff);
- toP=frag_more(wid);
- to_beg_P=toP;
+
+ if(the_ins.nfrag==0) { /* No frag hacking involved; just put it out */
+ toP=frag_more(2*the_ins.numo);
+ fromP= &the_ins.opcode[0];
+ for(m=the_ins.numo;m;--m) {
+ md_number_to_chars(toP,(long)(*fromP),2);
+ toP+=2;
+ fromP++;
+ }
+ /* put out symbol-dependent info */
+ for(m=0;m<the_ins.nrel;m++) {
+ switch(the_ins.reloc[m].wid) {
+ case 'B':
+ n=1;
+ break;
+ case 'b':
+ n=1;
+ break;
+ case '3':
+ n=2;
+ break;
+ case 'w':
+ n=2;
+ break;
+ case 'l':
+ n=4;
+ break;
+ default:
+ as_fatal("Don't know how to figure width of %c in md_assemble()",the_ins.reloc[m].wid);
+ }
+
+ fix_new(frag_now,
+ (toP-frag_now->fr_literal)-the_ins.numo*2+the_ins.reloc[m].n,
+ n,
+ the_ins.reloc[m].add,
+ the_ins.reloc[m].sub,
+ the_ins.reloc[m].off,
+ the_ins.reloc[m].pcrel,
+ NO_RELOC);
+ }
+ return;
+ }
+
+ /* There's some frag hacking */
+ for(n=0,fromP= &the_ins.opcode[0];n<the_ins.nfrag;n++) {
+ int wid;
+
+ if(n==0) wid=2*the_ins.fragb[n].fragoff;
+ else wid=2*(the_ins.numo-the_ins.fragb[n-1].fragoff);
+ toP=frag_more(wid);
+ to_beg_P=toP;
+ shorts_this_frag=0;
+ for(m=wid/2;m;--m) {
+ md_number_to_chars(toP,(long)(*fromP),2);
+ toP+=2;
+ fromP++;
+ shorts_this_frag++;
+ }
+ for(m=0;m<the_ins.nrel;m++) {
+ if((the_ins.reloc[m].n)>= 2*shorts_this_frag /* 2*the_ins.fragb[n].fragoff */) {
+ the_ins.reloc[m].n-= 2*shorts_this_frag /* 2*the_ins.fragb[n].fragoff */;
+ break;
+ }
+ wid=the_ins.reloc[m].wid;
+ if(wid==0)
+ continue;
+ the_ins.reloc[m].wid=0;
+ wid = (wid=='b') ? 1 : (wid=='w') ? 2 : (wid=='l') ? 4 : 4000;
+
+ fix_new(frag_now,
+ (toP-frag_now->fr_literal)-the_ins.numo*2+the_ins.reloc[m].n,
+ wid,
+ the_ins.reloc[m].add,
+ the_ins.reloc[m].sub,
+ the_ins.reloc[m].off,
+ the_ins.reloc[m].pcrel,
+ NO_RELOC);
+ }
+ /* know(the_ins.fragb[n].fadd); */
+ (void)frag_var(rs_machine_dependent,10,0,(relax_substateT)(the_ins.fragb[n].fragty),
+ the_ins.fragb[n].fadd,the_ins.fragb[n].foff,to_beg_P);
+ }
+ n=(the_ins.numo-the_ins.fragb[n-1].fragoff);
shorts_this_frag=0;
- for(m=wid/2;m;--m) {
- md_number_to_chars(toP,(long)(*fromP),2);
- toP+=2;
- fromP++;
- shorts_this_frag++;
+ if(n) {
+ toP=frag_more(n*sizeof(short));
+ while(n--) {
+ md_number_to_chars(toP,(long)(*fromP),2);
+ toP+=2;
+ fromP++;
+ shorts_this_frag++;
+ }
}
for(m=0;m<the_ins.nrel;m++) {
- if((the_ins.reloc[m].n)>= 2*shorts_this_frag /* 2*the_ins.fragb[n].fragoff */) {
- the_ins.reloc[m].n-= 2*shorts_this_frag /* 2*the_ins.fragb[n].fragoff */;
- break;
- }
- wid=the_ins.reloc[m].wid;
- if(wid==0)
- continue;
- the_ins.reloc[m].wid=0;
- wid = (wid=='b') ? 1 : (wid=='w') ? 2 : (wid=='l') ? 4 : 4000;
-
- fix_new(frag_now,
- (toP-frag_now->fr_literal)-the_ins.numo*2+the_ins.reloc[m].n,
- wid,
- the_ins.reloc[m].add,
- the_ins.reloc[m].sub,
- the_ins.reloc[m].off,
- the_ins.reloc[m].pcrel,
- NO_RELOC);
- }
- /* know(the_ins.fragb[n].fadd); */
- (void)frag_var(rs_machine_dependent,10,0,(relax_substateT)(the_ins.fragb[n].fragty),
- the_ins.fragb[n].fadd,the_ins.fragb[n].foff,to_beg_P);
- }
- n=(the_ins.numo-the_ins.fragb[n-1].fragoff);
- shorts_this_frag=0;
- if(n) {
- toP=frag_more(n*sizeof(short));
- while(n--) {
- md_number_to_chars(toP,(long)(*fromP),2);
- toP+=2;
- fromP++;
- shorts_this_frag++;
+ int wid;
+
+ wid=the_ins.reloc[m].wid;
+ if(wid==0)
+ continue;
+ the_ins.reloc[m].wid=0;
+ wid = (wid=='b') ? 1 : (wid=='w') ? 2 : (wid=='l') ? 4 : 4000;
+
+ fix_new(frag_now,
+ (the_ins.reloc[m].n + toP-frag_now->fr_literal)-/* the_ins.numo */ shorts_this_frag*2,
+ wid,
+ the_ins.reloc[m].add,
+ the_ins.reloc[m].sub,
+ the_ins.reloc[m].off,
+ the_ins.reloc[m].pcrel,
+ NO_RELOC);
}
- }
- for(m=0;m<the_ins.nrel;m++) {
- int wid;
-
- wid=the_ins.reloc[m].wid;
- if(wid==0)
- continue;
- the_ins.reloc[m].wid=0;
- wid = (wid=='b') ? 1 : (wid=='w') ? 2 : (wid=='l') ? 4 : 4000;
-
- fix_new(frag_now,
- (the_ins.reloc[m].n + toP-frag_now->fr_literal)-/* the_ins.numo */ shorts_this_frag*2,
- wid,
- the_ins.reloc[m].add,
- the_ins.reloc[m].sub,
- the_ins.reloc[m].off,
- the_ins.reloc[m].pcrel,
- NO_RELOC);
- }
}
/* This function is called once, at assembler startup time. This should
set up all the tables, etc that the MD part of the assembler needs
*/
+
+void
+insert_reg(regname, regnum)
+char *regname;
+int regnum;
+{
+ char buf[100];
+ int i;
+ symbol_table_insert(symbol_new(regname, SEG_REGISTER, regnum, &zero_address_frag));
+
+ for (i = 0; regname[i]; i++)
+ buf[i] = islower (regname[i]) ? toupper (regname[i]) : regname[i];
+ buf[i] = '\0';
+
+ symbol_table_insert(symbol_new(buf, SEG_REGISTER, regnum, &zero_address_frag));
+}
+
+static struct {
+char *name;
+int number;
+} init_table[] =
+{
+ "d0", DATA0,
+ "d1", DATA1,
+ "d2", DATA2,
+ "d3", DATA3,
+ "d4", DATA4,
+ "d5", DATA5,
+ "d6", DATA6,
+ "d7", DATA7,
+ "a0", ADDR0,
+ "a1", ADDR1,
+ "a2", ADDR2,
+ "a3", ADDR3,
+ "a4", ADDR4,
+ "a5", ADDR5,
+ "a6", ADDR6,
+ "fp", ADDR6,
+ "a7", ADDR7,
+ "sp", ADDR7,
+ "fp0", FP0,
+ "fp1", FP1,
+ "fp2", FP2,
+ "fp3", FP3,
+ "fp4", FP4,
+ "fp5", FP5,
+ "fp6", FP6,
+ "fp7", FP7,
+ "fpi", FPI,
+ "fps", FPS,
+ "fpc", FPC,
+
+ "cop0", COP0,
+ "cop1", COP1,
+ "cop2", COP2,
+ "cop3", COP3,
+ "cop4", COP4,
+ "cop5", COP5,
+ "cop6", COP6,
+ "cop7", COP7,
+ "pc", PC,
+ "zpc", ZPC,
+ "sr", SR,
+
+ "ccr", CCR,
+ "cc", CCR,
+
+ "usp", USP,
+ "isp", ISP,
+ "sfc", SFC,
+ "dfc", DFC,
+ "cacr", CACR,
+ "caar", CAAR,
+
+ "vbr", VBR,
+
+ "msp", MSP,
+ "itt0", ITT0,
+ "itt1", ITT1,
+ "dtt0", DTT0,
+ "dtt1", DTT1,
+ "mmusr", MMUSR,
+ "tc", TC,
+ "srp", SRP,
+ "urp", URP,
+
+#ifndef NO_68851
+ "ac", AC,
+ "bc", BC,
+ "cal", CAL,
+ "crp", CRP,
+ "drp", DRP,
+ "pcsr", PCSR,
+ "psr", PSR,
+ "scc", SCC,
+ "val", VAL,
+ "bad0", BAD0,
+ "bad1", BAD1,
+ "bad2", BAD2,
+ "bad3", BAD3,
+ "bad4", BAD4,
+ "bad5", BAD5,
+ "bad6", BAD6,
+ "bad7", BAD7,
+ "bac0", BAC0,
+ "bac1", BAC1,
+ "bac2", BAC2,
+ "bac3", BAC3,
+ "bac4", BAC4,
+ "bac5", BAC5,
+ "bac6", BAC6,
+ "bac7", BAC7,
+#endif
+
+ "ic", IC,
+ "dc", DC,
+ "nc", NC,
+
+ 0,
+
+};
+
+
+void
+init_regtable()
+{
+ int i;
+ for (i = 0; init_table[i].name; i++)
+ {
+ insert_reg(init_table[i].name, init_table[i].number);
+ }
+}
+
+
void
md_begin()
{
- /*
- * md_begin -- set up hash tables with 68000 instructions.
- * similar to what the vax assembler does. ---phr
- */
- /* RMS claims the thing to do is take the m68k-opcode.h table, and make
- a copy of it at runtime, adding in the information we want but isn't
- there. I think it'd be better to have an awk script hack the table
- at compile time. Or even just xstr the table and use it as-is. But
- my lord ghod hath spoken, so we do it this way. Excuse the ugly var
- names. */
-
- register const struct m68k_opcode *ins;
- register struct m68k_incant *hack,
- *slak;
- register char *retval = 0; /* empty string, or error msg text */
- register unsigned int i;
- register char c;
-
- if ((op_hash = hash_new()) == NULL)
- as_fatal("Virtual memory exhausted");
-
- obstack_begin(&robyn,4000);
- for (ins = m68k_opcodes; ins < endop; ins++) {
- hack=slak=(struct m68k_incant *)obstack_alloc(&robyn,sizeof(struct m68k_incant));
- do {
- /* we *could* ignore insns that don't match our
- arch here but just leaving them out of the
- hash. */
- slak->m_operands=ins->args;
- slak->m_opnum=strlen(slak->m_operands)/2;
- slak->m_arch = ins->arch;
- slak->m_opcode=ins->opcode;
- /* This is kludgey */
- slak->m_codenum=((ins->match)&0xffffL) ? 2 : 1;
- if((ins+1)!=endop && !strcmp(ins->name,(ins+1)->name)) {
- slak->m_next=(struct m68k_incant *) obstack_alloc(&robyn,sizeof(struct m68k_incant));
- ins++;
- } else
- slak->m_next=0;
- slak=slak->m_next;
- } while(slak);
-
- retval = hash_insert (op_hash, ins->name,(char *)hack);
- /* Didn't his mommy tell him about null pointers? */
- if(retval && *retval)
- as_fatal("Internal Error: Can't hash %s: %s",ins->name,retval);
- }
-
- for (i = 0; i < sizeof(mklower_table) ; i++)
- mklower_table[i] = (isupper(c = (char) i)) ? tolower(c) : c;
-
- for (i = 0 ; i < sizeof(notend_table) ; i++) {
- notend_table[i] = 0;
- alt_notend_table[i] = 0;
- }
- notend_table[','] = 1;
- notend_table['{'] = 1;
- notend_table['}'] = 1;
- alt_notend_table['a'] = 1;
- alt_notend_table['A'] = 1;
- alt_notend_table['d'] = 1;
- alt_notend_table['D'] = 1;
- alt_notend_table['#'] = 1;
- alt_notend_table['f'] = 1;
- alt_notend_table['F'] = 1;
+ /*
+ * md_begin -- set up hash tables with 68000 instructions.
+ * similar to what the vax assembler does. ---phr
+ */
+ /* RMS claims the thing to do is take the m68k-opcode.h table, and make
+ a copy of it at runtime, adding in the information we want but isn't
+ there. I think it'd be better to have an awk script hack the table
+ at compile time. Or even just xstr the table and use it as-is. But
+ my lord ghod hath spoken, so we do it this way. Excuse the ugly var
+ names. */
+
+ register const struct m68k_opcode *ins;
+ register struct m68k_incant *hack,
+ *slak;
+ register char *retval = 0; /* empty string, or error msg text */
+ register unsigned int i;
+ register char c;
+
+ if ((op_hash = hash_new()) == NULL)
+ as_fatal("Virtual memory exhausted");
+
+ obstack_begin(&robyn,4000);
+ for (ins = m68k_opcodes; ins < endop; ins++) {
+ hack=slak=(struct m68k_incant *)obstack_alloc(&robyn,sizeof(struct m68k_incant));
+ do {
+ /* we *could* ignore insns that don't match our
+ arch here but just leaving them out of the
+ hash. */
+ slak->m_operands=ins->args;
+ slak->m_opnum=strlen(slak->m_operands)/2;
+ slak->m_arch = ins->arch;
+ slak->m_opcode=ins->opcode;
+ /* This is kludgey */
+ slak->m_codenum=((ins->match)&0xffffL) ? 2 : 1;
+ if((ins+1)!=endop && !strcmp(ins->name,(ins+1)->name)) {
+ slak->m_next=(struct m68k_incant *) obstack_alloc(&robyn,sizeof(struct m68k_incant));
+ ins++;
+ } else
+ slak->m_next=0;
+ slak=slak->m_next;
+ } while(slak);
+
+ retval = hash_insert (op_hash, ins->name,(char *)hack);
+ /* Didn't his mommy tell him about null pointers? */
+ if(retval && *retval)
+ as_fatal("Internal Error: Can't hash %s: %s",ins->name,retval);
+ }
+
+ for (i = 0; i < sizeof(mklower_table) ; i++)
+ mklower_table[i] = (isupper(c = (char) i)) ? tolower(c) : c;
+
+ for (i = 0 ; i < sizeof(notend_table) ; i++) {
+ notend_table[i] = 0;
+ alt_notend_table[i] = 0;
+ }
+ notend_table[','] = 1;
+ notend_table['{'] = 1;
+ notend_table['}'] = 1;
+ alt_notend_table['a'] = 1;
+ alt_notend_table['A'] = 1;
+ alt_notend_table['d'] = 1;
+ alt_notend_table['D'] = 1;
+ alt_notend_table['#'] = 1;
+ alt_notend_table['f'] = 1;
+ alt_notend_table['F'] = 1;
#ifdef REGISTER_PREFIX
- alt_notend_table[REGISTER_PREFIX] = 1;
+ alt_notend_table[REGISTER_PREFIX] = 1;
#endif
+
+ init_regtable();
}
#if 0
char *litP;
int *sizeP;
{
- int prec;
- LITTLENUM_TYPE words[MAX_LITTLENUMS];
- LITTLENUM_TYPE *wordP;
- char *t;
- char *atof_ieee();
-
- switch(type) {
- case 'f':
- case 'F':
- case 's':
- case 'S':
- prec = 2;
- break;
-
- case 'd':
- case 'D':
- case 'r':
- case 'R':
- prec = 4;
- break;
-
- case 'x':
- case 'X':
- prec = 6;
- break;
+ int prec;
+ LITTLENUM_TYPE words[MAX_LITTLENUMS];
+ LITTLENUM_TYPE *wordP;
+ char *t;
+ char *atof_ieee();
- case 'p':
- case 'P':
- prec = 6;
- break;
+ switch(type) {
+ case 'f':
+ case 'F':
+ case 's':
+ case 'S':
+ prec = 2;
+ break;
+
+ case 'd':
+ case 'D':
+ case 'r':
+ case 'R':
+ prec = 4;
+ break;
+
+ case 'x':
+ case 'X':
+ prec = 6;
+ break;
+
+ case 'p':
+ case 'P':
+ prec = 6;
+ break;
+
+ default:
+ *sizeP=0;
+ return "Bad call to MD_ATOF()";
+ }
+ t=atof_ieee(input_line_pointer,type,words);
+ if(t)
+ input_line_pointer=t;
- default:
- *sizeP=0;
- return "Bad call to MD_ATOF()";
- }
- t=atof_ieee(input_line_pointer,type,words);
- if(t)
- input_line_pointer=t;
-
- *sizeP=prec * sizeof(LITTLENUM_TYPE);
- for(wordP=words;prec--;) {
- md_number_to_chars(litP,(long)(*wordP++),sizeof(LITTLENUM_TYPE));
- litP+=sizeof(LITTLENUM_TYPE);
- }
- return ""; /* Someone should teach Dean about null pointers */
+ *sizeP=prec * sizeof(LITTLENUM_TYPE);
+ for(wordP=words;prec--;) {
+ md_number_to_chars(litP,(long)(*wordP++),sizeof(LITTLENUM_TYPE));
+ litP+=sizeof(LITTLENUM_TYPE);
+ }
+ return ""; /* Someone should teach Dean about null pointers */
}
/* Turn an integer of n bytes (in val) into a stream of bytes appropriate
long val;
int n;
{
- switch(n) {
- case 1:
- *buf++=val;
- break;
- case 2:
- *buf++=(val>>8);
- *buf++=val;
- break;
- case 4:
- *buf++=(val>>24);
- *buf++=(val>>16);
- *buf++=(val>>8);
- *buf++=val;
- break;
- default:
- as_fatal("failed sanity check.");
- }
+ switch(n) {
+ case 1:
+ *buf++=val;
+ break;
+ case 2:
+ *buf++=(val>>8);
+ *buf++=val;
+ break;
+ case 4:
+ *buf++=(val>>24);
+ *buf++=(val>>16);
+ *buf++=(val>>8);
+ *buf++=val;
+ break;
+ default:
+ as_fatal("failed sanity check.");
+ }
}
void
fixS *fixP;
long val;
{
- char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
-
- switch(fixP->fx_size) {
- case 1:
- *buf++=val;
- break;
- case 2:
- *buf++=(val>>8);
- *buf++=val;
- break;
- case 4:
- *buf++=(val>>24);
- *buf++=(val>>16);
- *buf++=(val>>8);
- *buf++=val;
- break;
- default:
- BAD_CASE (fixP->fx_size);
- }
+ char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
+
+ switch(fixP->fx_size) {
+ case 1:
+ *buf++=val;
+ break;
+ case 2:
+ *buf++=(val>>8);
+ *buf++=val;
+ break;
+ case 4:
+ *buf++=(val>>24);
+ *buf++=(val>>16);
+ *buf++=(val>>8);
+ *buf++=val;
+ break;
+ default:
+ BAD_CASE (fixP->fx_size);
+ }
}
object_headers *headers;
register fragS *fragP;
{
- long disp;
- long ext = 0;
-
- /* Address in object code of the displacement. */
- register int object_address = fragP -> fr_fix + fragP -> fr_address;
-
+ long disp;
+ long ext = 0;
+
+ /* Address in object code of the displacement. */
+ register int object_address = fragP -> fr_fix + fragP -> fr_address;
+
#ifdef IBM_COMPILER_SUX
- /* This is wrong but it convinces the native rs6000 compiler to
- generate the code we want. */
- register char *buffer_address = fragP -> fr_literal;
- buffer_address += fragP -> fr_fix;
+ /* This is wrong but it convinces the native rs6000 compiler to
+ generate the code we want. */
+ register char *buffer_address = fragP -> fr_literal;
+ buffer_address += fragP -> fr_fix;
#else /* IBM_COMPILER_SUX */
- /* Address in gas core of the place to store the displacement. */
- register char *buffer_address = fragP->fr_fix + fragP->fr_literal;
+ /* Address in gas core of the place to store the displacement. */
+ register char *buffer_address = fragP->fr_fix + fragP->fr_literal;
#endif /* IBM_COMPILER_SUX */
-
- /* No longer true: know(fragP->fr_symbol); */
-
- /* The displacement of the address, from current location. */
- disp = fragP->fr_symbol ? S_GET_VALUE(fragP->fr_symbol) : 0;
- disp = (disp + fragP->fr_offset) - object_address;
-
- switch(fragP->fr_subtype) {
- case TAB(BCC68000,BYTE):
+
+ /* No longer true: know(fragP->fr_symbol); */
+
+ /* The displacement of the address, from current location. */
+ disp = fragP->fr_symbol ? S_GET_VALUE(fragP->fr_symbol) : 0;
+ disp = (disp + fragP->fr_offset) - object_address;
+
+ switch(fragP->fr_subtype) {
+ case TAB(BCC68000,BYTE):
case TAB(BRANCH,BYTE):
know(issbyte(disp));
if(disp==0)
fragP->fr_opcode[1]=disp;
ext=0;
break;
- case TAB(DBCC,SHORT):
- know(issword(disp));
+ case TAB(DBCC,SHORT):
+ know(issword(disp));
ext=2;
break;
- case TAB(BCC68000,SHORT):
- case TAB(BRANCH,SHORT):
- know(issword(disp));
+ case TAB(BCC68000,SHORT):
+ case TAB(BRANCH,SHORT):
+ know(issword(disp));
fragP->fr_opcode[1]=0x00;
ext=2;
break;
- case TAB(BRANCH,LONG):
- if (cpu_of_arch(current_architecture) < m68020) {
- if (fragP->fr_opcode[0]==0x61) {
- fragP->fr_opcode[0]= 0x4E;
- fragP->fr_opcode[1]= 0xB9; /* JBSR with ABSL LONG offset */
- subseg_change(SEG_TEXT, 0);
-
- fix_new(fragP,
- fragP->fr_fix,
- 4,
- fragP->fr_symbol,
- 0,
- fragP->fr_offset,
- 0,
- NO_RELOC);
-
- fragP->fr_fix+=4;
- ext=0;
- } else if (fragP->fr_opcode[0]==0x60) {
- fragP->fr_opcode[0]= 0x4E;
- fragP->fr_opcode[1]= 0xF9; /* JMP with ABSL LONG offset */
- subseg_change(SEG_TEXT, 0);
- fix_new(fragP, fragP->fr_fix, 4, fragP->fr_symbol, 0, fragP->fr_offset,0,
- NO_RELOC);
- fragP->fr_fix+=4;
- ext=0;
- } else {
- as_bad("Long branch offset not supported.");
- }
- } else {
- fragP->fr_opcode[1]=0xff;
- ext=4;
- }
- break;
- case TAB(BCC68000,LONG):
- /* only Bcc 68000 instructions can come here */
- /* change bcc into b!cc/jmp absl long */
- fragP->fr_opcode[0] ^= 0x01; /* invert bcc */
+ case TAB(BRANCH,LONG):
+ if (cpu_of_arch(current_architecture) < m68020) {
+ if (fragP->fr_opcode[0]==0x61) {
+ fragP->fr_opcode[0]= 0x4E;
+ fragP->fr_opcode[1]= 0xB9; /* JBSR with ABSL LONG offset */
+ subseg_change(SEG_TEXT, 0);
+
+ fix_new(fragP,
+ fragP->fr_fix,
+ 4,
+ fragP->fr_symbol,
+ 0,
+ fragP->fr_offset,
+ 0,
+ NO_RELOC);
+
+ fragP->fr_fix+=4;
+ ext=0;
+ } else if (fragP->fr_opcode[0]==0x60) {
+ fragP->fr_opcode[0]= 0x4E;
+ fragP->fr_opcode[1]= 0xF9; /* JMP with ABSL LONG offset */
+ subseg_change(SEG_TEXT, 0);
+ fix_new(fragP, fragP->fr_fix, 4, fragP->fr_symbol, 0, fragP->fr_offset,0,
+ NO_RELOC);
+ fragP->fr_fix+=4;
+ ext=0;
+ } else {
+ as_bad("Long branch offset not supported.");
+ }
+ } else {
+ fragP->fr_opcode[1]=0xff;
+ ext=4;
+ }
+ break;
+ case TAB(BCC68000,LONG):
+ /* only Bcc 68000 instructions can come here */
+ /* change bcc into b!cc/jmp absl long */
+ fragP->fr_opcode[0] ^= 0x01; /* invert bcc */
fragP->fr_opcode[1] = 0x6; /* branch offset = 6 */
/* JF: these used to be fr_opcode[2,3], but they may be in a
fragP->fr_fix += 4;
ext=0;
break;
- case TAB(DBCC,LONG):
- /* only DBcc 68000 instructions can come here */
- /* change dbcc into dbcc/jmp absl long */
- /* JF: these used to be fr_opcode[2-7], but that's wrong */
- *buffer_address++ = 0x00; /* branch offset = 4 */
+ case TAB(DBCC,LONG):
+ /* only DBcc 68000 instructions can come here */
+ /* change dbcc into dbcc/jmp absl long */
+ /* JF: these used to be fr_opcode[2-7], but that's wrong */
+ *buffer_address++ = 0x00; /* branch offset = 4 */
*buffer_address++ = 0x04;
*buffer_address++ = 0x60; /* put in bra pc+6 */
*buffer_address++ = 0x06;
fragP->fr_fix += 4;
ext=0;
break;
- case TAB(FBRANCH,SHORT):
- know((fragP->fr_opcode[1]&0x40)==0);
+ case TAB(FBRANCH,SHORT):
+ know((fragP->fr_opcode[1]&0x40)==0);
ext=2;
break;
- case TAB(FBRANCH,LONG):
- fragP->fr_opcode[1]|=0x40; /* Turn on LONG bit */
+ case TAB(FBRANCH,LONG):
+ fragP->fr_opcode[1]|=0x40; /* Turn on LONG bit */
ext=4;
break;
- case TAB(PCREL,SHORT):
- ext=2;
+ case TAB(PCREL,SHORT):
+ ext=2;
break;
- case TAB(PCREL,LONG):
- /* The thing to do here is force it to ABSOLUTE LONG, since
- PCREL is really trying to shorten an ABSOLUTE address anyway */
- /* JF FOO This code has not been tested */
- subseg_change(SEG_TEXT,0);
+ case TAB(PCREL,LONG):
+ /* The thing to do here is force it to ABSOLUTE LONG, since
+ PCREL is really trying to shorten an ABSOLUTE address anyway */
+ /* JF FOO This code has not been tested */
+ subseg_change(SEG_TEXT,0);
fix_new(fragP, fragP->fr_fix, 4, fragP->fr_symbol, 0, fragP->fr_offset, 0, NO_RELOC);
if((fragP->fr_opcode[1] & 0x3F) != 0x3A)
as_bad("Internal error (long PC-relative operand) for insn 0x%04lx at 0x%lx",
4); */
ext=0;
break;
- case TAB(PCLEA,SHORT):
- subseg_change(SEG_TEXT,0);
+ case TAB(PCLEA,SHORT):
+ subseg_change(SEG_TEXT,0);
fix_new(fragP,(int)(fragP->fr_fix),2,fragP->fr_symbol,(symbolS *)0,fragP->fr_offset,1,
NO_RELOC);
fragP->fr_opcode[1] &= ~0x3F;
fragP->fr_opcode[1] |= 0x3A;
ext=2;
break;
- case TAB(PCLEA,LONG):
- subseg_change(SEG_TEXT,0);
- fix_new(fragP,(int)(fragP->fr_fix)+2,4,fragP->fr_symbol,(symbolS *)0,fragP->fr_offset+2,1,
- NO_RELOC);
- *buffer_address++ = 0x01;
- *buffer_address++ = 0x70;
- fragP->fr_fix+=2;
- /* buffer_address+=2; */
- ext=4;
- break;
-
- } /* switch on subtype */
-
- if (ext) {
- md_number_to_chars(buffer_address, (long) disp, (int) ext);
- fragP->fr_fix += ext;
- /* H_SET_TEXT_SIZE(headers, H_GET_TEXT_SIZE(headers) + ext); */
- } /* if extending */
-
- return;
-} /* md_convert_frag() */
-
-/* Force truly undefined symbols to their maximum size, and generally set up
- the frag list to be relaxed
- */
-int md_estimate_size_before_relax(fragP, segment)
- register fragS *fragP;
- segT segment;
-{
- int old_fix;
- register char *buffer_address = fragP->fr_fix + fragP->fr_literal;
-
- old_fix = fragP->fr_fix;
-
- /* handle SZ_UNDEF first, it can be changed to BYTE or SHORT */
- switch(fragP->fr_subtype) {
-
- case TAB(BRANCH,SZ_UNDEF): {
- if((fragP->fr_symbol != NULL) /* Not absolute */
- && S_GET_SEGMENT(fragP->fr_symbol) == segment) {
- fragP->fr_subtype=TAB(TABTYPE(fragP->fr_subtype),BYTE);
- break;
- } else if((fragP->fr_symbol == 0) || (cpu_of_arch(current_architecture) < m68020)) {
- /* On 68000, or for absolute value, switch to abs long */
- /* FIXME, we should check abs val, pick short or long */
- if(fragP->fr_opcode[0]==0x61) {
- fragP->fr_opcode[0]= 0x4E;
- fragP->fr_opcode[1]= 0xB9; /* JBSR with ABSL LONG offset */
- subseg_change(SEG_TEXT, 0);
- fix_new(fragP, fragP->fr_fix, 4,
- fragP->fr_symbol, 0, fragP->fr_offset, 0, NO_RELOC);
- fragP->fr_fix+=4;
- frag_wane(fragP);
- } else if(fragP->fr_opcode[0]==0x60) {
- fragP->fr_opcode[0]= 0x4E;
- fragP->fr_opcode[1]= 0xF9; /* JMP with ABSL LONG offset */
- subseg_change(SEG_TEXT, 0);
- fix_new(fragP, fragP->fr_fix, 4,
- fragP->fr_symbol, 0, fragP->fr_offset, 0, NO_RELOC);
- fragP->fr_fix+=4;
- frag_wane(fragP);
- } else {
- as_warn("Long branch offset to extern symbol not supported.");
- }
- } else { /* Symbol is still undefined. Make it simple */
- fix_new(fragP, (int)(fragP->fr_fix), 4, fragP->fr_symbol,
- (symbolS *)0, fragP->fr_offset+4, 1, NO_RELOC);
- fragP->fr_fix+=4;
- fragP->fr_opcode[1]=0xff;
- frag_wane(fragP);
- break;
- }
-
- break;
- } /* case TAB(BRANCH,SZ_UNDEF) */
-
- case TAB(FBRANCH,SZ_UNDEF): {
- if(S_GET_SEGMENT(fragP->fr_symbol) == segment || flagseen['l']) {
- fragP->fr_subtype = TAB(FBRANCH,SHORT);
- fragP->fr_var += 2;
- } else {
- fragP->fr_subtype = TAB(FBRANCH,LONG);
- fragP->fr_var += 4;
- }
- break;
- } /* TAB(FBRANCH,SZ_UNDEF) */
-
- case TAB(PCREL,SZ_UNDEF): {
- if(S_GET_SEGMENT(fragP->fr_symbol) == segment || flagseen['l']) {
- fragP->fr_subtype = TAB(PCREL,SHORT);
- fragP->fr_var += 2;
- } else {
- fragP->fr_subtype = TAB(PCREL,LONG);
- fragP->fr_var += 4;
- }
+ case TAB(PCLEA,LONG):
+ subseg_change(SEG_TEXT,0);
+ fix_new(fragP,(int)(fragP->fr_fix)+2,4,fragP->fr_symbol,(symbolS *)0,fragP->fr_offset+2,1,
+ NO_RELOC);
+ *buffer_address++ = 0x01;
+ *buffer_address++ = 0x70;
+ fragP->fr_fix+=2;
+ /* buffer_address+=2; */
+ ext=4;
break;
- } /* TAB(PCREL,SZ_UNDEF) */
- case TAB(BCC68000,SZ_UNDEF): {
- if((fragP->fr_symbol != NULL)
- && S_GET_SEGMENT(fragP->fr_symbol) == segment) {
- fragP->fr_subtype=TAB(BCC68000,BYTE);
- break;
- }
- /* only Bcc 68000 instructions can come here */
- /* change bcc into b!cc/jmp absl long */
- fragP->fr_opcode[0] ^= 0x01; /* invert bcc */
- if(flagseen['l']) {
- fragP->fr_opcode[1] = 0x04; /* branch offset = 6 */
- /* JF: these were fr_opcode[2,3] */
- buffer_address[0] = 0x4e; /* put in jmp long (0x4ef9) */
- buffer_address[1] = 0xf8;
- fragP->fr_fix += 2; /* account for jmp instruction */
- subseg_change(SEG_TEXT,0);
- fix_new(fragP, fragP->fr_fix, 2, fragP->fr_symbol, 0,
- fragP->fr_offset, 0, NO_RELOC);
- fragP->fr_fix += 2;
- } else {
- fragP->fr_opcode[1] = 0x06; /* branch offset = 6 */
- /* JF: these were fr_opcode[2,3] */
- buffer_address[2] = 0x4e; /* put in jmp long (0x4ef9) */
- buffer_address[3] = 0xf9;
- fragP->fr_fix += 2; /* account for jmp instruction */
- subseg_change(SEG_TEXT,0);
- fix_new(fragP, fragP->fr_fix, 4, fragP->fr_symbol, 0,
- fragP->fr_offset, 0, NO_RELOC);
- fragP->fr_fix += 4;
- }
- frag_wane(fragP);
- break;
- } /* case TAB(BCC68000,SZ_UNDEF) */
+} /* switch on subtype */
- case TAB(DBCC,SZ_UNDEF): {
- if (fragP->fr_symbol != NULL && S_GET_SEGMENT(fragP->fr_symbol) == segment) {
- fragP->fr_subtype=TAB(DBCC,SHORT);
- fragP->fr_var+=2;
- break;
- }
- /* only DBcc 68000 instructions can come here */
- /* change dbcc into dbcc/jmp absl long */
- /* JF: these used to be fr_opcode[2-4], which is wrong. */
- buffer_address[0] = 0x00; /* branch offset = 4 */
- buffer_address[1] = 0x04;
- buffer_address[2] = 0x60; /* put in bra pc + ... */
-
- if(flagseen['l']) {
- /* JF: these were fr_opcode[5-7] */
- buffer_address[3] = 0x04; /* plus 4 */
- buffer_address[4] = 0x4e;/* Put in Jump Word */
- buffer_address[5] = 0xf8;
- fragP->fr_fix += 6; /* account for bra/jmp instruction */
- subseg_change(SEG_TEXT,0);
- fix_new(fragP, fragP->fr_fix, 2, fragP->fr_symbol, 0,
- fragP->fr_offset, 0, NO_RELOC);
- fragP->fr_fix += 2;
- } else {
- /* JF: these were fr_opcode[5-7] */
- buffer_address[3] = 0x06; /* Plus 6 */
- buffer_address[4] = 0x4e; /* put in jmp long (0x4ef9) */
- buffer_address[5] = 0xf9;
- fragP->fr_fix += 6; /* account for bra/jmp instruction */
- subseg_change(SEG_TEXT,0);
- fix_new(fragP, fragP->fr_fix, 4, fragP->fr_symbol, 0,
- fragP->fr_offset, 0, NO_RELOC);
- fragP->fr_fix += 4;
- }
+ if (ext) {
+ md_number_to_chars(buffer_address, (long) disp, (int) ext);
+ fragP->fr_fix += ext;
+ /* H_SET_TEXT_SIZE(headers, H_GET_TEXT_SIZE(headers) + ext); */
+ } /* if extending */
- frag_wane(fragP);
- break;
- } /* case TAB(DBCC,SZ_UNDEF) */
+ return;
+} /* md_convert_frag() */
+
+/* Force truly undefined symbols to their maximum size, and generally set up
+ the frag list to be relaxed
+ */
+int md_estimate_size_before_relax(fragP, segment)
+register fragS *fragP;
+segT segment;
+{
+ int old_fix;
+ register char *buffer_address = fragP->fr_fix + fragP->fr_literal;
- case TAB(PCLEA,SZ_UNDEF): {
- if ((S_GET_SEGMENT(fragP->fr_symbol))==segment || flagseen['l']) {
- fragP->fr_subtype=TAB(PCLEA,SHORT);
- fragP->fr_var+=2;
- } else {
- fragP->fr_subtype=TAB(PCLEA,LONG);
- fragP->fr_var+=6;
- }
- break;
- } /* TAB(PCLEA,SZ_UNDEF) */
+ old_fix = fragP->fr_fix;
- default:
- break;
+ /* handle SZ_UNDEF first, it can be changed to BYTE or SHORT */
+ switch (fragP->fr_subtype) {
+
+ case TAB(BRANCH,SZ_UNDEF): {
+ if((fragP->fr_symbol != NULL) /* Not absolute */
+ && S_GET_SEGMENT(fragP->fr_symbol) == segment) {
+ fragP->fr_subtype=TAB(TABTYPE(fragP->fr_subtype),BYTE);
+ break;
+ } else if((fragP->fr_symbol == 0) || (cpu_of_arch(current_architecture) < m68020)) {
+ /* On 68000, or for absolute value, switch to abs long */
+ /* FIXME, we should check abs val, pick short or long */
+ if(fragP->fr_opcode[0]==0x61) {
+ fragP->fr_opcode[0]= 0x4E;
+ fragP->fr_opcode[1]= 0xB9; /* JBSR with ABSL LONG offset */
+ subseg_change(SEG_TEXT, 0);
+ fix_new(fragP, fragP->fr_fix, 4,
+ fragP->fr_symbol, 0, fragP->fr_offset, 0, NO_RELOC);
+ fragP->fr_fix+=4;
+ frag_wane(fragP);
+ } else if(fragP->fr_opcode[0]==0x60) {
+ fragP->fr_opcode[0]= 0x4E;
+ fragP->fr_opcode[1]= 0xF9; /* JMP with ABSL LONG offset */
+ subseg_change(SEG_TEXT, 0);
+ fix_new(fragP, fragP->fr_fix, 4,
+ fragP->fr_symbol, 0, fragP->fr_offset, 0, NO_RELOC);
+ fragP->fr_fix+=4;
+ frag_wane(fragP);
+ } else {
+ as_warn("Long branch offset to extern symbol not supported.");
+ }
+ } else { /* Symbol is still undefined. Make it simple */
+ fix_new(fragP, (int)(fragP->fr_fix), 4, fragP->fr_symbol,
+ (symbolS *)0, fragP->fr_offset+4, 1, NO_RELOC);
+ fragP->fr_fix+=4;
+ fragP->fr_opcode[1]=0xff;
+ frag_wane(fragP);
+ break;
+ }
+
+ break;
+ } /* case TAB(BRANCH,SZ_UNDEF) */
+
+ case TAB(FBRANCH,SZ_UNDEF): {
+ if(S_GET_SEGMENT(fragP->fr_symbol) == segment || flagseen['l']) {
+ fragP->fr_subtype = TAB(FBRANCH,SHORT);
+ fragP->fr_var += 2;
+ } else {
+ fragP->fr_subtype = TAB(FBRANCH,LONG);
+ fragP->fr_var += 4;
+ }
+ break;
+ } /* TAB(FBRANCH,SZ_UNDEF) */
+
+ case TAB(PCREL,SZ_UNDEF): {
+ if(S_GET_SEGMENT(fragP->fr_symbol) == segment || flagseen['l']) {
+ fragP->fr_subtype = TAB(PCREL,SHORT);
+ fragP->fr_var += 2;
+ } else {
+ fragP->fr_subtype = TAB(PCREL,LONG);
+ fragP->fr_var += 4;
+ }
+ break;
+ } /* TAB(PCREL,SZ_UNDEF) */
+
+ case TAB(BCC68000,SZ_UNDEF): {
+ if((fragP->fr_symbol != NULL)
+ && S_GET_SEGMENT(fragP->fr_symbol) == segment) {
+ fragP->fr_subtype=TAB(BCC68000,BYTE);
+ break;
+ }
+ /* only Bcc 68000 instructions can come here */
+ /* change bcc into b!cc/jmp absl long */
+ fragP->fr_opcode[0] ^= 0x01; /* invert bcc */
+ if(flagseen['l']) {
+ fragP->fr_opcode[1] = 0x04; /* branch offset = 6 */
+ /* JF: these were fr_opcode[2,3] */
+ buffer_address[0] = 0x4e; /* put in jmp long (0x4ef9) */
+ buffer_address[1] = 0xf8;
+ fragP->fr_fix += 2; /* account for jmp instruction */
+ subseg_change(SEG_TEXT,0);
+ fix_new(fragP, fragP->fr_fix, 2, fragP->fr_symbol, 0,
+ fragP->fr_offset, 0, NO_RELOC);
+ fragP->fr_fix += 2;
+ } else {
+ fragP->fr_opcode[1] = 0x06; /* branch offset = 6 */
+ /* JF: these were fr_opcode[2,3] */
+ buffer_address[2] = 0x4e; /* put in jmp long (0x4ef9) */
+ buffer_address[3] = 0xf9;
+ fragP->fr_fix += 2; /* account for jmp instruction */
+ subseg_change(SEG_TEXT,0);
+ fix_new(fragP, fragP->fr_fix, 4, fragP->fr_symbol, 0,
+ fragP->fr_offset, 0, NO_RELOC);
+ fragP->fr_fix += 4;
+ }
+ frag_wane(fragP);
+ break;
+ } /* case TAB(BCC68000,SZ_UNDEF) */
+
+ case TAB(DBCC,SZ_UNDEF): {
+ if (fragP->fr_symbol != NULL && S_GET_SEGMENT(fragP->fr_symbol) == segment) {
+ fragP->fr_subtype=TAB(DBCC,SHORT);
+ fragP->fr_var+=2;
+ break;
+ }
+ /* only DBcc 68000 instructions can come here */
+ /* change dbcc into dbcc/jmp absl long */
+ /* JF: these used to be fr_opcode[2-4], which is wrong. */
+ buffer_address[0] = 0x00; /* branch offset = 4 */
+ buffer_address[1] = 0x04;
+ buffer_address[2] = 0x60; /* put in bra pc + ... */
+
+ if(flagseen['l']) {
+ /* JF: these were fr_opcode[5-7] */
+ buffer_address[3] = 0x04; /* plus 4 */
+ buffer_address[4] = 0x4e;/* Put in Jump Word */
+ buffer_address[5] = 0xf8;
+ fragP->fr_fix += 6; /* account for bra/jmp instruction */
+ subseg_change(SEG_TEXT,0);
+ fix_new(fragP, fragP->fr_fix, 2, fragP->fr_symbol, 0,
+ fragP->fr_offset, 0, NO_RELOC);
+ fragP->fr_fix += 2;
+ } else {
+ /* JF: these were fr_opcode[5-7] */
+ buffer_address[3] = 0x06; /* Plus 6 */
+ buffer_address[4] = 0x4e; /* put in jmp long (0x4ef9) */
+ buffer_address[5] = 0xf9;
+ fragP->fr_fix += 6; /* account for bra/jmp instruction */
+ subseg_change(SEG_TEXT,0);
+ fix_new(fragP, fragP->fr_fix, 4, fragP->fr_symbol, 0,
+ fragP->fr_offset, 0, NO_RELOC);
+ fragP->fr_fix += 4;
+ }
+
+ frag_wane(fragP);
+ break;
+ } /* case TAB(DBCC,SZ_UNDEF) */
+
+ case TAB(PCLEA,SZ_UNDEF): {
+ if ((S_GET_SEGMENT(fragP->fr_symbol))==segment || flagseen['l']) {
+ fragP->fr_subtype=TAB(PCLEA,SHORT);
+ fragP->fr_var+=2;
+ } else {
+ fragP->fr_subtype=TAB(PCLEA,LONG);
+ fragP->fr_var+=6;
+ }
+ break;
+ } /* TAB(PCLEA,SZ_UNDEF) */
+
+ default:
+ break;
+
+ } /* switch on subtype looking for SZ_UNDEF's. */
- } /* switch on subtype looking for SZ_UNDEF's. */
-
- /* now that SZ_UNDEF are taken care of, check others */
- switch(fragP->fr_subtype) {
- case TAB(BCC68000,BYTE):
+ /* now that SZ_UNDEF are taken care of, check others */
+ switch (fragP->fr_subtype) {
+ case TAB(BCC68000,BYTE):
case TAB(BRANCH,BYTE):
/* We can't do a short jump to the next instruction,
so we force word mode. */
if (fragP->fr_symbol && S_GET_VALUE(fragP->fr_symbol)==0 &&
fragP->fr_symbol->sy_frag==fragP->fr_next) {
- fragP->fr_subtype=TAB(TABTYPE(fragP->fr_subtype),SHORT);
- fragP->fr_var+=2;
+ fragP->fr_subtype=TAB(TABTYPE(fragP->fr_subtype),SHORT);
+ fragP->fr_var+=2;
}
break;
- default:
+ default:
break;
- }
- return fragP->fr_var + fragP->fr_fix - old_fix;
+}
+ return fragP->fr_var + fragP->fr_fix - old_fix;
}
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
char *the_bytes;
struct reloc_info_generic *ri;
{
- /* this is easy */
- md_number_to_chars(the_bytes, ri->r_address, 4);
- /* now the fun stuff */
- the_bytes[4] = (ri->r_symbolnum >> 16) & 0x0ff;
- the_bytes[5] = (ri->r_symbolnum >> 8) & 0x0ff;
- the_bytes[6] = ri->r_symbolnum & 0x0ff;
- the_bytes[7] = (((ri->r_pcrel << 7) & 0x80) | ((ri->r_length << 5) & 0x60) |
- ((ri->r_extern << 4) & 0x10));
+ /* this is easy */
+ md_number_to_chars(the_bytes, ri->r_address, 4);
+ /* now the fun stuff */
+ the_bytes[4] = (ri->r_symbolnum >> 16) & 0x0ff;
+ the_bytes[5] = (ri->r_symbolnum >> 8) & 0x0ff;
+ the_bytes[6] = ri->r_symbolnum & 0x0ff;
+ the_bytes[7] = (((ri->r_pcrel << 7) & 0x80) | ((ri->r_length << 5) & 0x60) |
+ ((ri->r_extern << 4) & 0x10));
}
#endif /* comment */
void tc_aout_fix_to_chars(where, fixP, segment_address_in_file)
- char *where;
- fixS *fixP;
- relax_addressT segment_address_in_file;
+char *where;
+fixS *fixP;
+relax_addressT segment_address_in_file;
{
- /*
- * In: length of relocation (or of address) in chars: 1, 2 or 4.
- * Out: GNU LD relocation length code: 0, 1, or 2.
- */
-
- static unsigned char nbytes_r_length [] = { 42, 0, 1, 42, 2 };
-
- long r_extern;
- long r_symbolnum;
-
- /* this is easy */
- md_number_to_chars(where,
- fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file,
- 4);
-
- /* now the fun stuff */
- if (S_GET_TYPE(fixP->fx_addsy) == N_UNDF) {
- r_extern = 1;
- r_symbolnum = fixP->fx_addsy->sy_number;
- } else {
- r_extern = 0;
- r_symbolnum = S_GET_TYPE(fixP->fx_addsy);
- }
-
- where[4] = (r_symbolnum >> 16) & 0x0ff;
- where[5] = (r_symbolnum >> 8) & 0x0ff;
- where[6] = r_symbolnum & 0x0ff;
- where[7] = (((fixP->fx_pcrel << 7) & 0x80) | ((nbytes_r_length[fixP->fx_size] << 5) & 0x60) |
- ((r_extern << 4) & 0x10));
-
- return;
+ /*
+ * In: length of relocation (or of address) in chars: 1, 2 or 4.
+ * Out: GNU LD relocation length code: 0, 1, or 2.
+ */
+
+ static unsigned char nbytes_r_length [] = { 42, 0, 1, 42, 2 };
+ long r_symbolnum;
+
+ know(fixP->fx_addsy != NULL);
+
+ md_number_to_chars(where,
+ fixP->fx_frag->fr_address + fixP->fx_where - segment_address_in_file,
+ 4);
+
+ r_symbolnum = (S_IS_DEFINED(fixP->fx_addsy)
+ ? S_GET_TYPE(fixP->fx_addsy)
+ : fixP->fx_addsy->sy_number);
+
+ where[4] = (r_symbolnum >> 16) & 0x0ff;
+ where[5] = (r_symbolnum >> 8) & 0x0ff;
+ where[6] = r_symbolnum & 0x0ff;
+ where[7] = (((fixP->fx_pcrel << 7) & 0x80) | ((nbytes_r_length[fixP->fx_size] << 5) & 0x60) |
+ (((!S_IS_DEFINED(fixP->fx_addsy)) << 4) & 0x10));
+
+ return;
} /* tc_aout_fix_to_chars() */
#endif /* OBJ_AOUT or OBJ_BOUT */
fragS *frag;
symbolS *to_symbol;
{
- long offset;
-
- offset = to_addr - (from_addr+2);
-
- md_number_to_chars(ptr ,(long)0x6000,2);
- md_number_to_chars(ptr+2,(long)offset,2);
+ long offset;
+
+ offset = to_addr - (from_addr+2);
+
+ md_number_to_chars(ptr ,(long)0x6000,2);
+ md_number_to_chars(ptr+2,(long)offset,2);
}
void
fragS *frag;
symbolS *to_symbol;
{
- long offset;
-
- if (cpu_of_arch(current_architecture) < m68020) {
- offset=to_addr-S_GET_VALUE(to_symbol);
- md_number_to_chars(ptr ,(long)0x4EF9,2);
- md_number_to_chars(ptr+2,(long)offset,4);
- fix_new(frag,(ptr+2)-frag->fr_literal,4,to_symbol,(symbolS *)0,(long)0,0,
- NO_RELOC);
- } else {
- offset=to_addr - (from_addr+2);
- md_number_to_chars(ptr ,(long)0x60ff,2);
- md_number_to_chars(ptr+2,(long)offset,4);
- }
+ long offset;
+
+ if (cpu_of_arch(current_architecture) < m68020) {
+ offset=to_addr-S_GET_VALUE(to_symbol);
+ md_number_to_chars(ptr ,(long)0x4EF9,2);
+ md_number_to_chars(ptr+2,(long)offset,4);
+ fix_new(frag,(ptr+2)-frag->fr_literal,4,to_symbol,(symbolS *)0,(long)0,0,
+ NO_RELOC);
+ } else {
+ offset=to_addr - (from_addr+2);
+ md_number_to_chars(ptr ,(long)0x60ff,2);
+ md_number_to_chars(ptr+2,(long)offset,4);
+ }
}
#endif
*/
static int get_num(exp,ok)
- struct m68k_exp *exp;
- int ok;
+struct m68k_exp *exp;
+int ok;
{
#ifdef TEST2
- long l = 0;
-
- if(!exp->e_beg)
- return 0;
- if(*exp->e_beg=='0') {
- if(exp->e_beg[1]=='x')
- sscanf(exp->e_beg+2,"%x",&l);
- else
- sscanf(exp->e_beg+1,"%O",&l);
- return l;
- }
- return atol(exp->e_beg);
+ long l = 0;
+
+ if(!exp->e_beg)
+ return 0;
+ if(*exp->e_beg=='0') {
+ if(exp->e_beg[1]=='x')
+ sscanf(exp->e_beg+2,"%x",&l);
+ else
+ sscanf(exp->e_beg+1,"%O",&l);
+ return l;
+ }
+ return atol(exp->e_beg);
#else
- char *save_in;
- char c_save;
-
- if(!exp) {
- /* Can't do anything */
- return 0;
- }
- if(!exp->e_beg || !exp->e_end) {
- seg(exp)=SEG_ABSOLUTE;
- adds(exp)=0;
- subs(exp)=0;
- offs(exp)= (ok==10) ? 1 : 0;
- as_warn("Null expression defaults to %ld",offs(exp));
- return 0;
- }
-
- exp->e_siz=0;
- if(/* ok!=80 && */exp->e_end[-1]==':' && (exp->e_end-exp->e_beg)>=2) {
- switch(exp->e_end[0]) {
- case 's':
- case 'S':
- case 'b':
- case 'B':
- exp->e_siz=1;
- break;
- case 'w':
- case 'W':
- exp->e_siz=2;
- break;
- case 'l':
- case 'L':
- exp->e_siz=3;
- break;
- default:
- as_bad("Unknown size for expression \"%c\"",exp->e_end[0]);
+ char *save_in;
+ char c_save;
+
+ if(!exp) {
+ /* Can't do anything */
+ return 0;
+ }
+ if(!exp->e_beg || !exp->e_end) {
+ seg(exp)=SEG_ABSOLUTE;
+ adds(exp)=0;
+ subs(exp)=0;
+ offs(exp)= (ok==10) ? 1 : 0;
+ as_warn("Null expression defaults to %ld",offs(exp));
+ return 0;
}
- exp->e_end-=2;
- }
- c_save=exp->e_end[1];
- exp->e_end[1]='\0';
- save_in=input_line_pointer;
- input_line_pointer=exp->e_beg;
- switch(expression(&(exp->e_exp))) {
- case SEG_PASS1:
- seg(exp)=SEG_ABSOLUTE;
- adds(exp)=0;
- subs(exp)=0;
- offs(exp)= (ok==10) ? 1 : 0;
- as_warn("Unknown expression: '%s' defaulting to %d",exp->e_beg,offs(exp));
- break;
- case SEG_ABSENT:
- /* Do the same thing the VAX asm does */
- seg(exp)=SEG_ABSOLUTE;
- adds(exp)=0;
- subs(exp)=0;
- offs(exp)=0;
- if(ok==10) {
- as_warn("expression out of range: defaulting to 1");
- offs(exp)=1;
+ exp->e_siz=0;
+ if(/* ok!=80 && */exp->e_end[-1]==':' && (exp->e_end-exp->e_beg)>=2) {
+ switch(exp->e_end[0]) {
+ case 's':
+ case 'S':
+ case 'b':
+ case 'B':
+ exp->e_siz=1;
+ break;
+ case 'w':
+ case 'W':
+ exp->e_siz=2;
+ break;
+ case 'l':
+ case 'L':
+ exp->e_siz=3;
+ break;
+ default:
+ as_bad("Unknown size for expression \"%c\"",exp->e_end[0]);
+ }
+ exp->e_end-=2;
}
- break;
- case SEG_ABSOLUTE:
- switch(ok) {
- case 10:
- if(offs(exp)<1 || offs(exp)>8) {
- as_warn("expression out of range: defaulting to 1");
- offs(exp)=1;
- }
- break;
- case 20:
- if(offs(exp)<0 || offs(exp)>7)
- goto outrange;
- break;
- case 30:
- if(offs(exp)<0 || offs(exp)>15)
- goto outrange;
- break;
- case 40:
- if(offs(exp)<0 || offs(exp)>32)
- goto outrange;
- break;
- case 50:
- if(offs(exp)<0 || offs(exp)>127)
- goto outrange;
- break;
- case 55:
- if(offs(exp)<-64 || offs(exp)>63)
- goto outrange;
- break;
- case 60:
- if(offs(exp)<-128 || offs(exp)>127)
- goto outrange;
- break;
- case 70:
- if(offs(exp)<0 || offs(exp)>4095) {
- outrange:
- as_warn("expression out of range: defaulting to 0");
+ c_save=exp->e_end[1];
+ exp->e_end[1]='\0';
+ save_in=input_line_pointer;
+ input_line_pointer=exp->e_beg;
+ switch(expression(&(exp->e_exp))) {
+ case SEG_PASS1:
+ seg(exp)=SEG_ABSOLUTE;
+ adds(exp)=0;
+ subs(exp)=0;
+ offs(exp)= (ok==10) ? 1 : 0;
+ as_warn("Unknown expression: '%s' defaulting to %d",exp->e_beg,offs(exp));
+ break;
+
+ case SEG_ABSENT:
+ /* Do the same thing the VAX asm does */
+ seg(exp)=SEG_ABSOLUTE;
+ adds(exp)=0;
+ subs(exp)=0;
offs(exp)=0;
- }
- break;
+ if(ok==10) {
+ as_warn("expression out of range: defaulting to 1");
+ offs(exp)=1;
+ }
+ break;
+ case SEG_ABSOLUTE:
+ switch(ok) {
+ case 10:
+ if(offs(exp)<1 || offs(exp)>8) {
+ as_warn("expression out of range: defaulting to 1");
+ offs(exp)=1;
+ }
+ break;
+ case 20:
+ if(offs(exp)<0 || offs(exp)>7)
+ goto outrange;
+ break;
+ case 30:
+ if(offs(exp)<0 || offs(exp)>15)
+ goto outrange;
+ break;
+ case 40:
+ if(offs(exp)<0 || offs(exp)>32)
+ goto outrange;
+ break;
+ case 50:
+ if(offs(exp)<0 || offs(exp)>127)
+ goto outrange;
+ break;
+ case 55:
+ if(offs(exp)<-64 || offs(exp)>63)
+ goto outrange;
+ break;
+ case 60:
+ if(offs(exp)<-128 || offs(exp)>127)
+ goto outrange;
+ break;
+ case 70:
+ if(offs(exp)<0 || offs(exp)>4095) {
+ outrange:
+ as_warn("expression out of range: defaulting to 0");
+ offs(exp)=0;
+ }
+ break;
+ default:
+ break;
+ }
+ break;
+ case SEG_TEXT:
+ case SEG_DATA:
+ case SEG_BSS:
+ case SEG_UNKNOWN:
+ case SEG_DIFFERENCE:
+ if(ok>=10 && ok<=70) {
+ seg(exp)=SEG_ABSOLUTE;
+ adds(exp)=0;
+ subs(exp)=0;
+ offs(exp)= (ok==10) ? 1 : 0;
+ as_warn("Can't deal with expression \"%s\": defaulting to %ld",exp->e_beg,offs(exp));
+ }
+ break;
+ case SEG_BIG:
+ if(ok==80 && offs(exp)<0) { /* HACK! Turn it into a long */
+ LITTLENUM_TYPE words[6];
+
+ gen_to_words(words,2,8L);/* These numbers are magic! */
+ seg(exp)=SEG_ABSOLUTE;
+ adds(exp)=0;
+ subs(exp)=0;
+ offs(exp)=words[1]|(words[0]<<16);
+ } else if(ok!=0) {
+ seg(exp)=SEG_ABSOLUTE;
+ adds(exp)=0;
+ subs(exp)=0;
+ offs(exp)= (ok==10) ? 1 : 0;
+ as_warn("Can't deal with expression \"%s\": defaulting to %ld",exp->e_beg,offs(exp));
+ }
+ break;
default:
- break;
- }
- break;
- case SEG_TEXT:
- case SEG_DATA:
- case SEG_BSS:
- case SEG_UNKNOWN:
- case SEG_DIFFERENCE:
- if(ok>=10 && ok<=70) {
- seg(exp)=SEG_ABSOLUTE;
- adds(exp)=0;
- subs(exp)=0;
- offs(exp)= (ok==10) ? 1 : 0;
- as_warn("Can't deal with expression \"%s\": defaulting to %ld",exp->e_beg,offs(exp));
- }
- break;
- case SEG_BIG:
- if(ok==80 && offs(exp)<0) { /* HACK! Turn it into a long */
- LITTLENUM_TYPE words[6];
-
- gen_to_words(words,2,8L);/* These numbers are magic! */
- seg(exp)=SEG_ABSOLUTE;
- adds(exp)=0;
- subs(exp)=0;
- offs(exp)=words[1]|(words[0]<<16);
- } else if(ok!=0) {
- seg(exp)=SEG_ABSOLUTE;
- adds(exp)=0;
- subs(exp)=0;
- offs(exp)= (ok==10) ? 1 : 0;
- as_warn("Can't deal with expression \"%s\": defaulting to %ld",exp->e_beg,offs(exp));
+ as_fatal("failed sanity check.");
}
- break;
- default:
- as_fatal("failed sanity check.");
- }
- if(input_line_pointer!=exp->e_end+1)
- as_bad("Ignoring junk after expression");
- exp->e_end[1]=c_save;
- input_line_pointer=save_in;
- if(exp->e_siz) {
- switch(exp->e_siz) {
- case 1:
- if(!isbyte(offs(exp)))
- as_warn("expression doesn't fit in BYTE");
- break;
- case 2:
- if(!isword(offs(exp)))
- as_warn("expression doesn't fit in WORD");
- break;
+ if(input_line_pointer!=exp->e_end+1)
+ as_bad("Ignoring junk after expression");
+ exp->e_end[1]=c_save;
+ input_line_pointer=save_in;
+ if(exp->e_siz) {
+ switch(exp->e_siz) {
+ case 1:
+ if(!isbyte(offs(exp)))
+ as_warn("expression doesn't fit in BYTE");
+ break;
+ case 2:
+ if(!isword(offs(exp)))
+ as_warn("expression doesn't fit in WORD");
+ break;
+ }
}
- }
- return offs(exp);
+ return offs(exp);
#endif
} /* get_num() */
void demand_empty_rest_of_line(); /* Hate those extra verbose names */
static void s_data1() {
- subseg_new(SEG_DATA,1);
- demand_empty_rest_of_line();
+ subseg_new(SEG_DATA,1);
+ demand_empty_rest_of_line();
} /* s_data1() */
static void s_data2() {
- subseg_new(SEG_DATA,2);
- demand_empty_rest_of_line();
+ subseg_new(SEG_DATA,2);
+ demand_empty_rest_of_line();
} /* s_data2() */
static void s_bss() {
- /* We don't support putting frags in the BSS segment, but we
- can put them into initialized data for now... */
- subseg_new(SEG_DATA,255); /* FIXME-SOON */
- demand_empty_rest_of_line();
+ /* We don't support putting frags in the BSS segment, but we
+ can put them into initialized data for now... */
+ subseg_new(SEG_DATA,255); /* FIXME-SOON */
+ demand_empty_rest_of_line();
} /* s_bss() */
static void s_even() {
- register int temp;
- register long temp_fill;
-
- temp = 1; /* JF should be 2? */
- temp_fill = get_absolute_expression ();
- if ( ! need_pass_2 ) /* Never make frag if expect extra pass. */
- frag_align (temp, (int)temp_fill);
- demand_empty_rest_of_line();
+ register int temp;
+ register long temp_fill;
+
+ temp = 1; /* JF should be 2? */
+ temp_fill = get_absolute_expression ();
+ if ( ! need_pass_2 ) /* Never make frag if expect extra pass. */
+ frag_align (temp, (int)temp_fill);
+ demand_empty_rest_of_line();
} /* s_even() */
static void s_proc() {
- demand_empty_rest_of_line();
+ demand_empty_rest_of_line();
} /* s_proc() */
/* s_space is defined in read.c .skip is simply an alias to it. */
#endif
int md_parse_option(argP,cntP,vecP)
- char **argP;
- int *cntP;
- char ***vecP;
+char **argP;
+int *cntP;
+char ***vecP;
{
- switch(**argP) {
- case 'l': /* -l means keep external to 2 bit offset
- rather than 16 bit one */
- break;
-
- case 'S': /* -S means that jbsr's always turn into jsr's. */
- break;
-
- case 'A':
- (*argP)++;
- /* intentional fall-through */
- case 'm':
- (*argP)++;
-
- if (**argP=='c') {
- (*argP)++;
- } /* allow an optional "c" */
-
- if (!strcmp(*argP, "68000")
- || !strcmp(*argP, "68008")) {
- current_architecture |= m68000;
- } else if (!strcmp(*argP, "68010")) {
+ switch(**argP) {
+ case 'l': /* -l means keep external to 2 bit offset
+ rather than 16 bit one */
+ break;
+
+ case 'S': /* -S means that jbsr's always turn into jsr's. */
+ break;
+
+ case 'A':
+ (*argP)++;
+ /* intentional fall-through */
+ case 'm':
+ (*argP)++;
+
+ if (**argP=='c') {
+ (*argP)++;
+ } /* allow an optional "c" */
+
+ if (!strcmp(*argP, "68000")
+ || !strcmp(*argP, "68008")) {
+ current_architecture |= m68000;
+ } else if (!strcmp(*argP, "68010")) {
#ifdef TE_SUN
- omagic= 1<<16|OMAGIC;
+ omagic= 1<<16|OMAGIC;
#endif
- current_architecture |= m68010;
-
- } else if (!strcmp(*argP, "68020")) {
- current_architecture |= m68020 | MAYBE_FLOAT_TOO;
-
- } else if (!strcmp(*argP, "68030")) {
- current_architecture |= m68030 | MAYBE_FLOAT_TOO;
-
- } else if (!strcmp(*argP, "68040")) {
- current_architecture |= m68040 | MAYBE_FLOAT_TOO;
-
+ current_architecture |= m68010;
+
+ } else if (!strcmp(*argP, "68020")) {
+ current_architecture |= m68020 | MAYBE_FLOAT_TOO;
+
+ } else if (!strcmp(*argP, "68030")) {
+ current_architecture |= m68030 | MAYBE_FLOAT_TOO;
+
+ } else if (!strcmp(*argP, "68040")) {
+ current_architecture |= m68040 | MAYBE_FLOAT_TOO;
+
#ifndef NO_68881
- } else if (!strcmp(*argP, "68881")) {
- current_architecture |= m68881;
-
- } else if (!strcmp(*argP, "68882")) {
- current_architecture |= m68882;
-
+ } else if (!strcmp(*argP, "68881")) {
+ current_architecture |= m68881;
+
+ } else if (!strcmp(*argP, "68882")) {
+ current_architecture |= m68882;
+
#endif /* NO_68881 */
#ifndef NO_68851
- } else if (!strcmp(*argP,"68851")) {
- current_architecture |= m68851;
-
+ } else if (!strcmp(*argP,"68851")) {
+ current_architecture |= m68851;
+
#endif /* NO_68851 */
- } else {
- as_warn("Unknown architecture, \"%s\". option ignored", *argP);
- } /* switch on architecture */
-
- while(**argP) (*argP)++;
-
- break;
-
- case 'p':
- if (!strcmp(*argP,"pic")) {
- (*argP) += 3;
- break; /* -pic, Position Independent Code */
- } else {
- return(0);
- } /* pic or not */
-
- default:
- return 0;
- }
- return 1;
+ } else {
+ as_warn("Unknown architecture, \"%s\". option ignored", *argP);
+ } /* switch on architecture */
+
+ while(**argP) (*argP)++;
+
+ break;
+
+ case 'p':
+ if (!strcmp(*argP,"pic")) {
+ (*argP) += 3;
+ break; /* -pic, Position Independent Code */
+ } else {
+ return(0);
+ } /* pic or not */
+
+ default:
+ return 0;
+ }
+ return 1;
}
main()
{
- struct m68k_it the_ins;
- char buf[120];
- char *cp;
- int n;
-
- m68k_ip_begin();
- for(;;) {
- if(!gets(buf) || !*buf)
- break;
- if(buf[0]=='|' || buf[1]=='.')
- continue;
- for(cp=buf;*cp;cp++)
- if(*cp=='\t')
- *cp=' ';
- if(is_label(buf))
- continue;
- bzero(&the_ins,sizeof(the_ins));
- m68k_ip(&the_ins,buf);
- if(the_ins.error) {
- printf("Error %s in %s\n",the_ins.error,buf);
- } else {
- printf("Opcode(%d.%s): ",the_ins.numo,the_ins.args);
- for(n=0;n<the_ins.numo;n++)
- printf(" 0x%x",the_ins.opcode[n]&0xffff);
- printf(" ");
- print_the_insn(&the_ins.opcode[0],stdout);
- (void)putchar('\n');
- }
- for(n=0;n<strlen(the_ins.args)/2;n++) {
- if(the_ins.operands[n].error) {
- printf("op%d Error %s in %s\n",n,the_ins.operands[n].error,buf);
- continue;
- }
- printf("mode %d, reg %d, ",the_ins.operands[n].mode,the_ins.operands[n].reg);
- if(the_ins.operands[n].b_const)
- printf("Constant: '%.*s', ",1+the_ins.operands[n].e_const-the_ins.operands[n].b_const,the_ins.operands[n].b_const);
- printf("ireg %d, isiz %d, imul %d, ",the_ins.operands[n].ireg,the_ins.operands[n].isiz,the_ins.operands[n].imul);
- if(the_ins.operands[n].b_iadd)
- printf("Iadd: '%.*s',",1+the_ins.operands[n].e_iadd-the_ins.operands[n].b_iadd,the_ins.operands[n].b_iadd);
- (void)putchar('\n');
+ struct m68k_it the_ins;
+ char buf[120];
+ char *cp;
+ int n;
+
+ m68k_ip_begin();
+ for(;;) {
+ if(!gets(buf) || !*buf)
+ break;
+ if(buf[0]=='|' || buf[1]=='.')
+ continue;
+ for(cp=buf;*cp;cp++)
+ if(*cp=='\t')
+ *cp=' ';
+ if(is_label(buf))
+ continue;
+ memset(&the_ins, '\0', sizeof(the_ins));
+ m68k_ip(&the_ins,buf);
+ if(the_ins.error) {
+ printf("Error %s in %s\n",the_ins.error,buf);
+ } else {
+ printf("Opcode(%d.%s): ",the_ins.numo,the_ins.args);
+ for(n=0;n<the_ins.numo;n++)
+ printf(" 0x%x",the_ins.opcode[n]&0xffff);
+ printf(" ");
+ print_the_insn(&the_ins.opcode[0],stdout);
+ (void)putchar('\n');
+ }
+ for(n=0;n<strlen(the_ins.args)/2;n++) {
+ if(the_ins.operands[n].error) {
+ printf("op%d Error %s in %s\n",n,the_ins.operands[n].error,buf);
+ continue;
+ }
+ printf("mode %d, reg %d, ",the_ins.operands[n].mode,the_ins.operands[n].reg);
+ if(the_ins.operands[n].b_const)
+ printf("Constant: '%.*s', ",1+the_ins.operands[n].e_const-the_ins.operands[n].b_const,the_ins.operands[n].b_const);
+ printf("ireg %d, isiz %d, imul %d, ",the_ins.operands[n].ireg,the_ins.operands[n].isiz,the_ins.operands[n].imul);
+ if(the_ins.operands[n].b_iadd)
+ printf("Iadd: '%.*s',",1+the_ins.operands[n].e_iadd-the_ins.operands[n].b_iadd,the_ins.operands[n].b_iadd);
+ (void)putchar('\n');
+ }
}
- }
- m68k_ip_end();
- return 0;
+ m68k_ip_end();
+ return 0;
}
is_label(str)
- char *str;
+char *str;
{
- while(*str==' ')
- str++;
- while(*str && *str!=' ')
- str++;
- if(str[-1]==':' || str[1]=='=')
- return 1;
- return 0;
+ while(*str==' ')
+ str++;
+ while(*str && *str!=' ')
+ str++;
+ if(str[-1]==':' || str[1]=='=')
+ return 1;
+ return 0;
}
#endif
#ifdef DONTDEF
abort()
{
- printf("ABORT!\n");
- exit(12);
-}
-
-char *index(s,c)
- char *s;
-{
- while(*s!=c) {
- if(!*s) return 0;
- s++;
- }
- return s;
-}
-
-bzero(s,n)
- char *s;
-{
- while(n--)
- *s++=0;
+ printf("ABORT!\n");
+ exit(12);
}
print_frags()
{
- fragS *fragP;
- extern fragS *text_frag_root;
-
- for(fragP=text_frag_root;fragP;fragP=fragP->fr_next) {
- printf("addr %lu next 0x%x fix %ld var %ld symbol 0x%x offset %ld\n",
- fragP->fr_address,fragP->fr_next,fragP->fr_fix,fragP->fr_var,fragP->fr_symbol,fragP->fr_offset);
- printf("opcode 0x%x type %d subtype %d\n\n",fragP->fr_opcode,fragP->fr_type,fragP->fr_subtype);
- }
- fflush(stdout);
- return 0;
+ fragS *fragP;
+ extern fragS *text_frag_root;
+
+ for(fragP=text_frag_root;fragP;fragP=fragP->fr_next) {
+ printf("addr %lu next 0x%x fix %ld var %ld symbol 0x%x offset %ld\n",
+ fragP->fr_address,fragP->fr_next,fragP->fr_fix,fragP->fr_var,fragP->fr_symbol,fragP->fr_offset);
+ printf("opcode 0x%x type %d subtype %d\n\n",fragP->fr_opcode,fragP->fr_type,fragP->fr_subtype);
+ }
+ fflush(stdout);
+ return 0;
}
#endif
#ifdef DONTDEF
/*VARARGS1*/
panic(format,args)
- char *format;
+char *format;
{
- fputs("Internal error:",stderr);
- _doprnt(format,&args,stderr);
- (void)putc('\n',stderr);
- as_where();
- abort();
+ fputs("Internal error:",stderr);
+ _doprnt(format,&args,stderr);
+ (void)putc('\n',stderr);
+ as_where();
+ abort();
}
#endif
md_undefined_symbol (name)
char *name;
{
- return 0;
+ return 0;
}
/* Parse an operand that is machine-specific.
segT segment;
long size;
{
- return size; /* Byte alignment is fine */
+ return size; /* Byte alignment is fine */
}
/* Exactly what point is a PC-relative offset relative TO?
md_pcrel_from (fixP)
fixS *fixP;
{
- return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
+ return(fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address);
}
/*
/* read.c - read a source file -
+ Copyright (C) 1986, 1987, 1990, 1991 Free Software Foundation, Inc.
- Copyright (C) 1986, 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
-
- This file is part of GAS, the GNU Assembler.
-
- GAS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GAS; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+This file is part of GAS, the GNU Assembler.
+
+GAS is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GAS is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GAS; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define MASK_CHAR (0xFF) /* If your chars aren't 8 bits, you will
change this a bit. But then, GNU isn't
*/
#define MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT (16)
-/* This is the largest known floating point */
-/* format (for now). It will grow when we */
-/* do 4361 style flonums. */
+ /* This is the largest known floating point */
+ /* format (for now). It will grow when we */
+ /* do 4361 style flonums. */
/* Routines that read assembler source text to build spagetti in memory. */
#include "as.h"
#include "obstack.h"
-
+#include "listing.h"
char *input_line_pointer; /*->next char of source file to parse. */
-#ifndef NOP_OPCODE
-# define NOP_OPCODE 0x00
-#endif
#if BITS_PER_CHAR != 8
The following table is indexed by [ (char) ] and will break if
- a char does not have exactly 256 states (hopefully 0:255!) !
+a char does not have exactly 256 states (hopefully 0:255!) !
#endif
-
- const char /* used by is_... macros. our ctype[] */
- lex_type [256] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ABCDEFGHIJKLMNO */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* PQRSTUVWXYZ[\]^_ */
- 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 0123456789:;<=>? */
- 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* @ABCDEFGHIJKLMNO */
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 3, /* PQRSTUVWXYZ[\]^_ */
- 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* `abcdefghijklmno */
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, /* pqrstuvwxyz{|}~. */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- };
+
+const char /* used by is_... macros. our ctype[] */
+lex_type [256] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ABCDEFGHIJKLMNO */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* PQRSTUVWXYZ[\]^_ */
+ 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 0123456789:;<=>? */
+ 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* @ABCDEFGHIJKLMNO */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 3, /* PQRSTUVWXYZ[\]^_ */
+ 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* `abcdefghijklmno */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, /* pqrstuvwxyz{|}~. */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
/*
#define _ (0)
char is_end_of_line [256] = {
#ifdef CR_EOL
- _, _, _, _, _, _, _, _, _, _,99, _, _, 99, _, _,/* @abcdefghijklmno */
+ _, _, _, _, _, _, _, _, _, _,99, _, _, 99, _, _,/* @abcdefghijklmno */
#else
- _, _, _, _, _, _, _, _, _, _,99, _, _, _, _, _, /* @abcdefghijklmno */
+ _, _, _, _, _, _, _, _, _, _,99, _, _, _, _, _, /* @abcdefghijklmno */
#endif
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _,99, _, _, _, _, /* 0123456789:;<=>? */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _ /* */
- };
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _,99, _, _, _, _, /* 0123456789:;<=>? */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _ /* */
+};
#undef _
-/* Functions private to this file. */
+ /* Functions private to this file. */
char line_comment_chars[1];
char line_separator_chars[1];
static char *bignum_low; /* Lowest char of bignum. */
static char *bignum_limit; /* 1st illegal address of bignum. */
static char *bignum_high; /* Highest char of bignum. */
-/* May point to (bignum_start-1). */
-/* Never >= bignum_limit. */
+ /* May point to (bignum_start-1). */
+ /* Never >= bignum_limit. */
static char *old_buffer = 0; /* JF a hack */
static char *old_input;
static char *old_limit;
int new_broken_words = 0;
#endif
-#if __STDC__ == 1
+#ifdef __STDC__
static char *demand_copy_string(int *lenP);
int is_it_end_of_statement(void);
static segT get_known_segmented_expression(expressionS *expP);
static void grow_bignum(void);
static void pobegin(void);
-void stringer(int append_zero);
+ void stringer(int append_zero);
#else /* __STDC__ */
static segT get_known_segmented_expression();
static void grow_bignum();
static void pobegin();
-void stringer();
+ void stringer();
-#endif /* not __STDC__ */
+#endif /* __STDC__ */
extern int listing;
\f
void
- read_begin()
+read_begin()
{
- char *p;
-
- pobegin();
- obj_read_begin_hook();
-
- obstack_begin(¬es, 5000);
- obstack_begin(&cond_obstack, 960);
-
+ char *p;
+
+ pobegin();
+ obj_read_begin_hook();
+
+ obstack_begin(¬es, 5000);
+ obstack_begin(&cond_obstack, 960);
+
#define BIGNUM_BEGIN_SIZE (16)
- bignum_low = xmalloc((long)BIGNUM_BEGIN_SIZE);
- bignum_limit = bignum_low + BIGNUM_BEGIN_SIZE;
-
- /* Use machine dependent syntax */
- for (p = line_separator_chars; *p; p++)
- is_end_of_line[*p] = 1;
- /* Use more. FIXME-SOMEDAY. */
+ bignum_low = xmalloc((long)BIGNUM_BEGIN_SIZE);
+ bignum_limit = bignum_low + BIGNUM_BEGIN_SIZE;
+
+ /* Use machine dependent syntax */
+ for (p = line_separator_chars; *p; p++)
+ is_end_of_line[*p] = 1;
+ /* Use more. FIXME-SOMEDAY. */
}
\f
/* set up pseudo-op tables */
struct hash_control *
- po_hash = NULL; /* use before set up: NULL->address error */
+po_hash = NULL; /* use before set up: NULL->address error */
+
+#ifdef DONTDEF
+void s_gdbline(), s_gdblinetab();
+void s_gdbbeg(), s_gdbblock(), s_gdbend(), s_gdbsym();
+#endif
static const pseudo_typeS
- potable[] =
+potable[] =
{
- { "abort", s_abort, 0 },
- { "align", s_align_ptwo, 0 },
- { "ascii", stringer, 0 },
- { "asciz", stringer, 1 },
- /* block */
- { "byte", cons, 1 },
- { "bss", s_bss, 0 },
- { "comm", s_comm, 0 },
- { "data", s_data, 0 },
- /* dim */
- { "double", float_cons, 'd' },
- /* dsect */
-#ifdef NO_LISTING
- { "eject", s_ignore, 0 }, /* Formfeed listing */
-#else
- { "eject", listing_eject, 0 }, /* Formfeed listing */
-#endif /* NO_LISTING */
- { "else", s_else, 0 },
- { "end", s_end, 0 },
- { "endif", s_endif, 0 },
- /* endef */
- { "equ", s_set, 0 },
- /* err */
- /* extend */
- { "extern", s_ignore, 0 }, /* We treat all undef as ext */
- { "app-file", s_app_file, 0 },
- { "file", s_app_file, 0 },
- { "fill", s_fill, 0 },
- { "float", float_cons, 'f' },
- { "global", s_globl, 0 },
- { "globl", s_globl, 0 },
- { "hword", cons, 2 },
- { "if", s_if, 0 },
- { "ifdef", s_ifdef, 0 },
- { "ifeqs", s_ifeqs, 0 },
- { "ifndef", s_ifdef, 1 },
- { "ifnes", s_ifeqs, 1 },
- { "ifnotdef", s_ifdef, 1 },
- { "include", s_include, 0 },
- { "int", cons, 4 },
- { "lcomm", s_lcomm, 0 },
-#ifdef NO_LISTING
- { "lflags", s_ignore, 0 }, /* Listing flags */
- { "list", s_ignore, 1 }, /* Turn listing on */
-#else
- { "lflags", listing_flags, 0 }, /* Listing flags */
- { "list", listing_list, 1 }, /* Turn listing on */
-#endif /* NO_LISTING */
- { "long", cons, 4 },
- { "lsym", s_lsym, 0 },
-#ifdef NO_LISTING
- { "nolist", s_ignore, 0 }, /* Turn listing off */
-#else
- { "nolist", listing_list, 0 }, /* Turn listing off */
-#endif /* NO_LISTING */
- { "octa", big_cons, 16 },
- { "org", s_org, 0 },
-#ifdef NO_LISTING
- { "psize", s_ignore, 0 }, /* set paper size */
-#else
- { "psize", listing_psize, 0 }, /* set paper size */
-#endif /* NO_LISTING */
- /* print */
- { "quad", big_cons, 8 },
-#ifdef NO_LISTING
- { "sbttl", s_ignore, 1 }, /* Subtitle of listing */
-#else
- { "sbttl", listing_title, 1 }, /* Subtitle of listing */
-#endif /* NO_LISTING */
- /* scl */
- /* sect */
- { "set", s_set, 0 },
- { "short", cons, 2 },
- { "single", float_cons, 'f' },
- /* size */
- { "space", s_space, 0 },
- /* tag */
- { "text", s_text, 0 },
-#ifdef NO_LISTING
- { "title", s_ignore, 0 }, /* Listing title */
-#else
- { "title", listing_title, 0 }, /* Listing title */
-#endif /* NO_LISTING */
- /* type */
- /* use */
- /* val */
- { "word", cons, 2 },
- { NULL} /* end sentinel */
+ { "abort", s_abort, 0 },
+ { "align", s_align_ptwo, 0 },
+ { "ascii", stringer, 0 },
+ { "asciz", stringer, 1 },
+/* block */
+ { "byte", cons, 1 },
+ { "comm", s_comm, 0 },
+ { "data", s_data, 0 },
+/* dim */
+ { "double", float_cons, 'd' },
+/* dsect */
+ { "eject", listing_eject, 0 }, /* Formfeed listing */
+ { "else", s_else, 0 },
+ { "end", s_end, 0 },
+ { "endif", s_endif, 0 },
+/* endef */
+ { "equ", s_set, 0 },
+/* err */
+/* extend */
+ { "extern", s_ignore, 0 }, /* We treat all undef as ext */
+ { "app-file", s_app_file, 0 },
+ { "file", s_app_file, 0 },
+ { "fill", s_fill, 0 },
+ { "float", float_cons, 'f' },
+#ifdef DONTDEF
+ { "gdbbeg", s_gdbbeg, 0 },
+ { "gdbblock", s_gdbblock, 0 },
+ { "gdbend", s_gdbend, 0 },
+ { "gdbsym", s_gdbsym, 0 },
+ { "gdbline", s_gdbline, 0 },
+ { "gdblinetab",s_gdblinetab, 0 },
+#endif
+ { "global", s_globl, 0 },
+ { "globl", s_globl, 0 },
+ { "hword", cons, 2 },
+ { "if", s_if, 0 },
+ { "ifdef", s_ifdef, 0 },
+ { "ifeqs", s_ifeqs, 0 },
+ { "ifndef", s_ifdef, 1 },
+ { "ifnes", s_ifeqs, 1 },
+ { "ifnotdef", s_ifdef, 1 },
+ { "include", s_include, 0 },
+ { "int", cons, 4 },
+ { "lcomm", s_lcomm, 0 },
+ { "lflags", listing_flags, 0 }, /* Listing flags */
+ { "list", listing_list, 1 }, /* Turn listing on */
+ { "long", cons, 4 },
+ { "lsym", s_lsym, 0 },
+ { "nolist", listing_list, 0 }, /* Turn listing off */
+ { "octa", big_cons, 16 },
+ { "org", s_org, 0 },
+ { "psize", listing_psize, 0 }, /* set paper size */
+/* print */
+ { "quad", big_cons, 8 },
+ { "sbttl", listing_title, 1 }, /* Subtitle of listing */
+/* scl */
+/* sect */
+ { "set", s_set, 0 },
+ { "short", cons, 2 },
+ { "single", float_cons, 'f' },
+/* size */
+ { "space", s_space, 0 },
+/* tag */
+ { "text", s_text, 0 },
+ { "title", listing_title, 0 }, /* Listing title */
+/* type */
+/* use */
+/* val */
+ { "word", cons, 2 },
+ { NULL} /* end sentinel */
};
static void pobegin() {
char *errtxt; /* error text */
const pseudo_typeS * pop;
-
+
po_hash = hash_new();
-
+
/* Do the target-specific pseudo ops. */
for (pop = md_pseudo_table; pop->poc_name; pop++) {
errtxt = hash_insert(po_hash, pop->poc_name, (char *)pop);
as_fatal("error constructing md pseudo-op table");
} /* on error */
} /* for each op */
-
+
/* Now object specific. Skip any that were in the target table. */
for (pop=obj_pseudo_table; pop->poc_name; pop++) {
errtxt = hash_insert (po_hash, pop->poc_name, (char *)pop);
} /* if overridden */
} /* on error */
} /* for each op */
-
+
/* Now portable ones. Skip any that we've seen already. */
for (pop=potable; pop->poc_name; pop++) {
errtxt = hash_insert (po_hash, pop->poc_name, (char *)pop);
} /* if overridden */
} /* on error */
} /* for each op */
-
+
return;
} /* pobegin() */
\f
#define HANDLE_CONDITIONAL_ASSEMBLY() \
- if (ignore_input ()) \
-{ \
- while (! is_end_of_line[*input_line_pointer++]) \
- if (input_line_pointer == buffer_limit) \
- break; \
- continue; \
- }
+ if (ignore_input ()) \
+ { \
+ while (! is_end_of_line[*input_line_pointer++]) \
+ if (input_line_pointer == buffer_limit) \
+ break; \
+ continue; \
+ }
/* read_a_source_file()
void read_a_source_file(name)
char *name;
{
- register char c;
- register char * s; /* string of symbol, '\0' appended */
- register int temp;
- /* register struct frag * fragP; JF unused */ /* a frag we just made */
- pseudo_typeS *pop;
-
- buffer = input_scrub_new_file(name);
-
- listing_file(name);
- listing_newline("");
-
- while ((buffer_limit = input_scrub_next_buffer(&input_line_pointer)) != 0) { /* We have another line to parse. */
- know(buffer_limit[-1] == '\n'); /* Must have a sentinel. */
- contin: /* JF this goto is my fault I admit it. Someone brave please re-write
- the whole input section here? Pleeze??? */
- while (input_line_pointer < buffer_limit) { /* We have more of this buffer to parse. */
-
- /*
- * We now have input_line_pointer->1st char of next line.
- * If input_line_pointer [-1] == '\n' then we just
- * scanned another line: so bump line counters.
- */
- if (input_line_pointer[-1] == '\n') {
- bump_line_counters();
- } /* just passed a newline */
-
-
+ register char c;
+ register char * s; /* string of symbol, '\0' appended */
+ register int temp;
+ /* register struct frag * fragP; JF unused */ /* a frag we just made */
+ pseudo_typeS *pop;
+#ifdef DONTDEF
+ void gdb_block_beg();
+ void gdb_block_position();
+ void gdb_block_end();
+ void gdb_symbols_fixup();
+#endif
+
+ buffer = input_scrub_new_file(name);
+
+ listing_file(name);
+ listing_newline("");
+
+ while ((buffer_limit = input_scrub_next_buffer(&input_line_pointer)) != 0) { /* We have another line to parse. */
+ know(buffer_limit[-1] == '\n'); /* Must have a sentinel. */
+ contin: /* JF this goto is my fault I admit it. Someone brave please re-write
+ the whole input section here? Pleeze??? */
+ while (input_line_pointer < buffer_limit) { /* We have more of this buffer to parse. */
+
+ /*
+ * We now have input_line_pointer->1st char of next line.
+ * If input_line_pointer [-1] == '\n' then we just
+ * scanned another line: so bump line counters.
+ */
+ if (input_line_pointer[-1] == '\n') {
+ bump_line_counters();
+
+#ifdef MRI
+ /* Text at the start of a line must be a label, we run down and stick a colon in */
+ if (is_name_beginner(*input_line_pointer))
+ {
+ char *line_start = input_line_pointer;
+ char c = get_symbol_end();
+ colon(line_start);
+ *input_line_pointer = c;
+ if (c == ':')
+ input_line_pointer++;
+
+ }
+#endif
+ } /* just passed a newline */
+
+
+
+
- /*
- * We are at the begining of a line, or similar place.
- * We expect a well-formed assembler statement.
- * A "symbol-name:" is a statement.
- *
- * Depending on what compiler is used, the order of these tests
- * may vary to catch most common case 1st.
- * Each test is independent of all other tests at the (top) level.
- * PLEASE make a compiler that doesn't use this assembler.
- * It is crufty to waste a compiler's time encoding things for this
- * assembler, which then wastes more time decoding it.
- * (And communicating via (linear) files is silly!
- * If you must pass stuff, please pass a tree!)
- */
- if ((c = *input_line_pointer++) == '\t' || c == ' ' || c=='\f' || c == 0) {
- c = *input_line_pointer++;
- }
- know(c != ' '); /* No further leading whitespace. */
- LISTING_NEWLINE();
- /*
- * C is the 1st significant character.
- * Input_line_pointer points after that character.
- */
- if (is_name_beginner(c)) { /* want user-defined label or pseudo/opcode */
- HANDLE_CONDITIONAL_ASSEMBLY();
+ /*
+ * We are at the begining of a line, or similar place.
+ * We expect a well-formed assembler statement.
+ * A "symbol-name:" is a statement.
+ *
+ * Depending on what compiler is used, the order of these tests
+ * may vary to catch most common case 1st.
+ * Each test is independent of all other tests at the (top) level.
+ * PLEASE make a compiler that doesn't use this assembler.
+ * It is crufty to waste a compiler's time encoding things for this
+ * assembler, which then wastes more time decoding it.
+ * (And communicating via (linear) files is silly!
+ * If you must pass stuff, please pass a tree!)
+ */
+ if ((c = *input_line_pointer++) == '\t' || c == ' ' || c=='\f' || c == 0) {
+ c = *input_line_pointer++;
+ }
+ know(c != ' '); /* No further leading whitespace. */
+ LISTING_NEWLINE();
+ /*
+ * C is the 1st significant character.
+ * Input_line_pointer points after that character.
+ */
+ if (is_name_beginner(c)) { /* want user-defined label or pseudo/opcode */
+ HANDLE_CONDITIONAL_ASSEMBLY();
- s = --input_line_pointer;
- c = get_symbol_end(); /* name's delimiter */
- /*
- * C is character after symbol.
- * That character's place in the input line is now '\0'.
- * S points to the beginning of the symbol.
- * [In case of pseudo-op, s->'.'.]
- * Input_line_pointer->'\0' where c was.
- */
- if (c == ':') {
- colon(s); /* user-defined label */
- * input_line_pointer ++ = ':'; /* Put ':' back for error messages' sake. */
- /* Input_line_pointer->after ':'. */
- SKIP_WHITESPACE();
-
+ s = --input_line_pointer;
+ c = get_symbol_end(); /* name's delimiter */
+ /*
+ * C is character after symbol.
+ * That character's place in the input line is now '\0'.
+ * S points to the beginning of the symbol.
+ * [In case of pseudo-op, s->'.'.]
+ * Input_line_pointer->'\0' where c was.
+ */
+ if (c == ':') {
+ colon(s); /* user-defined label */
+ * input_line_pointer ++ = ':'; /* Put ':' back for error messages' sake. */
+ /* Input_line_pointer->after ':'. */
+ SKIP_WHITESPACE();
+
- } else if (c == '=' || input_line_pointer[1] == '=') { /* JF deal with FOO=BAR */
- equals(s);
- demand_empty_rest_of_line();
- } else { /* expect pseudo-op or machine instruction */
- if (*s == '.') {
- /*
- * PSEUDO - OP.
- *
- * WARNING: c has next char, which may be end-of-line.
- * We lookup the pseudo-op table with s+1 because we
- * already know that the pseudo-op begins with a '.'.
- */
+ } else if (c == '=' || input_line_pointer[1] == '=') { /* JF deal with FOO=BAR */
+ equals(s);
+ demand_empty_rest_of_line();
+ } else { /* expect pseudo-op or machine instruction */
+#ifdef MRI
+ if(!done_pseudo(s))
+
+#else
+ if (*s == '.') {
+ /*
+ * PSEUDO - OP.
+ *
+ * WARNING: c has next char, which may be end-of-line.
+ * We lookup the pseudo-op table with s+1 because we
+ * already know that the pseudo-op begins with a '.'.
+ */
- pop = (pseudo_typeS *) hash_find(po_hash, s+1);
+ pop = (pseudo_typeS *) hash_find(po_hash, s+1);
- /* Print the error msg now, while we still can */
- if (!pop) {
- as_bad("Unknown pseudo-op: `%s'",s);
- *input_line_pointer = c;
- s_ignore(0);
- break;
- }
+ /* Print the error msg now, while we still can */
+ if (!pop) {
+ as_bad("Unknown pseudo-op: `%s'",s);
+ *input_line_pointer = c;
+ s_ignore(0);
+ break;
+ }
- /* Put it back for error messages etc. */
- *input_line_pointer = c;
- /* The following skip of whitespace is compulsory. */
- /* A well shaped space is sometimes all that separates keyword from operands. */
- if (c == ' ' || c == '\t') {
- input_line_pointer++;
- } /* Skip seperator after keyword. */
- /*
- * Input_line is restored.
- * Input_line_pointer->1st non-blank char
- * after pseudo-operation.
- */
- if (!pop) {
- ignore_rest_of_line();
- break;
- } else {
- (*pop->poc_handler)(pop->poc_val);
- } /* if we have one */
- } else { /* machine instruction */
- /* WARNING: c has char, which may be end-of-line. */
- /* Also: input_line_pointer->`\0` where c was. */
- * input_line_pointer = c;
- while (!is_end_of_line[*input_line_pointer]) {
- input_line_pointer++;
- }
- c = *input_line_pointer;
- *input_line_pointer = '\0';
- md_assemble(s); /* Assemble 1 instruction. */
- *input_line_pointer++ = c;
- /* We resume loop AFTER the end-of-line from this instruction */
- } /* if (*s=='.') */
-
- } /* if c==':' */
- continue;
- } /* if (is_name_beginner(c) */
-
+ /* Put it back for error messages etc. */
+ *input_line_pointer = c;
+ /* The following skip of whitespace is compulsory. */
+ /* A well shaped space is sometimes all that separates keyword from operands. */
+ if (c == ' ' || c == '\t') {
+ input_line_pointer++;
+ } /* Skip seperator after keyword. */
+ /*
+ * Input_line is restored.
+ * Input_line_pointer->1st non-blank char
+ * after pseudo-operation.
+ */
+ if (!pop) {
+ ignore_rest_of_line();
+ break;
+ } else {
+ (*pop->poc_handler)(pop->poc_val);
+ } /* if we have one */
+ } else
+#endif
+ { /* machine instruction */
+ /* WARNING: c has char, which may be end-of-line. */
+ /* Also: input_line_pointer->`\0` where c was. */
+ * input_line_pointer = c;
+ while (!is_end_of_line[*input_line_pointer]) {
+ input_line_pointer++;
+ }
+
+ c = *input_line_pointer;
+ *input_line_pointer = '\0';
+
+ md_assemble(s); /* Assemble 1 instruction. */
+
+ *input_line_pointer++ = c;
+
+ /* We resume loop AFTER the end-of-line from this instruction */
+ } /* if (*s=='.') */
+
+ } /* if c==':' */
+ continue;
+ } /* if (is_name_beginner(c) */
- if (is_end_of_line [c]) {
- continue;
- } /* empty statement */
+ if (is_end_of_line [c]) {
+ continue;
+ } /* empty statement */
- if (isdigit(c)) { /* local label ("4:") */
- HANDLE_CONDITIONAL_ASSEMBLY ();
-
- temp = c - '0';
+
+#if defined(LOCAL_LABELS_DOLLAR) || defined(LOCAL_LABELS_FB)
+ if (isdigit(c)) { /* local label ("4:") */
+ char *backup = input_line_pointer;
+
+ HANDLE_CONDITIONAL_ASSEMBLY ();
+
+ temp = c - '0';
+
+ while (isdigit(*input_line_pointer)) {
+ temp = (temp * 10) + *input_line_pointer - '0';
+ ++input_line_pointer;
+ } /* read the whole number */
+
#ifdef LOCAL_LABELS_DOLLAR
- if (*input_line_pointer=='$')
- input_line_pointer++;
-#endif
- if (* input_line_pointer ++ == ':')
- {
- local_colon (temp);
- }
- else
- {
- as_bad("Spurious digit %d.", temp);
- input_line_pointer -- ;
- ignore_rest_of_line();
- }
- continue;
- } /* local label ("4:") */
-
- if (c && strchr(line_comment_chars,c)) { /* Its a comment. Better say APP or NO_APP */
- char *ends;
- char *new_buf;
- char *new_tmp;
- int new_length;
- char *tmp_buf = 0;
- extern char *scrub_string,*scrub_last_string;
+ if (*input_line_pointer == '$'
+ && *(input_line_pointer + 1) == ':') {
+ input_line_pointer += 2;
+
+ if (dollar_label_defined(temp)) {
+ as_fatal("label \"%d$\" redefined", temp);
+ }
+
+ define_dollar_label(temp);
+ colon(dollar_label_name(temp, 0));
+ continue;
+ }
+#endif /* LOCAL_LABELS_DOLLAR */
+
+#ifdef LOCAL_LABELS_FB
+ if (*input_line_pointer++ == ':') {
+ fb_label_instance_inc(temp);
+ colon(fb_label_name(temp, 0));
+ continue;
+ }
+#endif /* LOCAL_LABELS_FB */
+
+ input_line_pointer = backup;
+ } /* local label ("4:") */
+#endif /* LOCAL_LABELS_DOLLAR or LOCAL_LABELS_FB */
+
+ if (c && strchr(line_comment_chars,c)) { /* Its a comment. Better say APP or NO_APP */
+ char *ends;
+ char *new_buf;
+ char *new_tmp;
+ int new_length;
+ char *tmp_buf = 0;
+ extern char *scrub_string,*scrub_last_string;
- bump_line_counters();
- s=input_line_pointer;
- if (strncmp(s,"APP\n",4))
- continue; /* We ignore it */
- s+=4;
+ bump_line_counters();
+ s=input_line_pointer;
+ if (strncmp(s,"APP\n",4))
+ continue; /* We ignore it */
+ s+=4;
- ends=strstr(s,"#NO_APP\n");
+ ends=strstr(s,"#NO_APP\n");
- if (!ends) {
- int tmp_len;
- int num;
+ if (!ends) {
+ int tmp_len;
+ int num;
- /* The end of the #APP wasn't in this buffer. We
- keep reading in buffers until we find the #NO_APP
- that goes with this #APP There is one. The specs
- guarentee it. . . */
- tmp_len=buffer_limit-s;
- tmp_buf=xmalloc(tmp_len);
- memcpy(tmp_buf, s, tmp_len);
- do {
- new_tmp = input_scrub_next_buffer(&buffer);
- if (!new_tmp)
- break;
- else
- buffer_limit = new_tmp;
- input_line_pointer = buffer;
- ends = strstr(buffer,"#NO_APP\n");
- if (ends)
- num=ends-buffer;
- else
- num=buffer_limit-buffer;
+ /* The end of the #APP wasn't in this buffer. We
+ keep reading in buffers until we find the #NO_APP
+ that goes with this #APP There is one. The specs
+ guarentee it. . . */
+ tmp_len=buffer_limit-s;
+ tmp_buf=xmalloc(tmp_len);
+ bcopy(s,tmp_buf,tmp_len);
+ do {
+ new_tmp = input_scrub_next_buffer(&buffer);
+ if (!new_tmp)
+ break;
+ else
+ buffer_limit = new_tmp;
+ input_line_pointer = buffer;
+ ends = strstr(buffer,"#NO_APP\n");
+ if (ends)
+ num=ends-buffer;
+ else
+ num=buffer_limit-buffer;
- tmp_buf = xrealloc(tmp_buf, tmp_len + num);
- memcpy(tmp_buf + tmp_len, buffer, num);
- tmp_len+=num;
- } while(!ends);
+ tmp_buf = xrealloc(tmp_buf, tmp_len + num);
+ bcopy(buffer,tmp_buf+tmp_len,num);
+ tmp_len+=num;
+ } while(!ends);
- input_line_pointer= ends ? ends+8 : NULL;
+ input_line_pointer= ends ? ends+8 : NULL;
- s=tmp_buf;
- ends=s+tmp_len;
+ s=tmp_buf;
+ ends=s+tmp_len;
- } else {
- input_line_pointer=ends+8;
- }
- new_buf=xmalloc(100);
- new_length=100;
- new_tmp=new_buf;
-
- scrub_string=s;
- scrub_last_string = ends;
- for(;;) {
- int ch;
-
- ch = do_scrub_next_char(scrub_from_string, scrub_to_string);
- if (ch==EOF) break;
- *new_tmp++=ch;
- if (new_tmp==new_buf+new_length) {
- new_buf=xrealloc(new_buf,new_length+100);
- new_tmp=new_buf+new_length;
- new_length+=100;
- }
- }
-
- if (tmp_buf)
- free(tmp_buf);
- old_buffer=buffer;
- old_input=input_line_pointer;
- old_limit=buffer_limit;
- buffer=new_buf;
- input_line_pointer=new_buf;
- buffer_limit=new_tmp;
- continue;
- }
-
- HANDLE_CONDITIONAL_ASSEMBLY();
-
- /* as_warn("Junk character %d.",c); Now done by ignore_rest */
- input_line_pointer--; /* Report unknown char as ignored. */
- ignore_rest_of_line();
- } /* while (input_line_pointer<buffer_limit) */
- if (old_buffer) {
- bump_line_counters();
- if (old_input != 0) {
- buffer=old_buffer;
- input_line_pointer=old_input;
- buffer_limit=old_limit;
- old_buffer = 0;
- goto contin;
- }
+ } else {
+ input_line_pointer=ends+8;
+ }
+ new_buf=xmalloc(100);
+ new_length=100;
+ new_tmp=new_buf;
+
+ scrub_string=s;
+ scrub_last_string = ends;
+ for(;;) {
+ int ch;
+
+ ch = do_scrub_next_char(scrub_from_string, scrub_to_string);
+ if (ch==EOF) break;
+ *new_tmp++=ch;
+ if (new_tmp==new_buf+new_length) {
+ new_buf=xrealloc(new_buf,new_length+100);
+ new_tmp=new_buf+new_length;
+ new_length+=100;
+ }
}
- } /* while (more buffers to scan) */
- input_scrub_close(); /* Close the input file */
-
+
+ if (tmp_buf)
+ free(tmp_buf);
+ old_buffer=buffer;
+ old_input=input_line_pointer;
+ old_limit=buffer_limit;
+ buffer=new_buf;
+ input_line_pointer=new_buf;
+ buffer_limit=new_tmp;
+ continue;
+ }
+
+ HANDLE_CONDITIONAL_ASSEMBLY();
+
+ /* as_warn("Junk character %d.",c); Now done by ignore_rest */
+ input_line_pointer--; /* Report unknown char as ignored. */
+ ignore_rest_of_line();
+ } /* while (input_line_pointer<buffer_limit) */
+ if (old_buffer) {
+ bump_line_counters();
+ if (old_input != 0) {
+ buffer=old_buffer;
+ input_line_pointer=old_input;
+ buffer_limit=old_limit;
+ old_buffer = 0;
+ goto contin;
+ }
+ }
+ } /* while (more buffers to scan) */
+ input_scrub_close(); /* Close the input file */
+
} /* read_a_source_file() */
void s_abort() {
void s_align_bytes(arg)
int arg;
{
- register unsigned int temp;
- register long temp_fill;
- unsigned int i = 0;
- unsigned long max_alignment = 1 << 15;
-
- if (is_end_of_line[*input_line_pointer])
- temp = arg; /* Default value from pseudo-op table */
- else
- temp = get_absolute_expression ();
-
- if (temp > max_alignment) {
- as_bad("Alignment too large: %d. assumed.", temp = max_alignment);
- }
-
- /*
- * For the sparc, `.align (1<<n)' actually means `.align n'
- * so we have to convert it.
- */
- if (temp != 0) {
- for (i = 0; (temp & 1) == 0; temp >>= 1, ++i)
- ;
- }
- if (temp != 1)
- as_bad("Alignment not a power of 2");
-
- temp = i;
- if (*input_line_pointer == ',') {
- input_line_pointer ++;
- temp_fill = get_absolute_expression ();
- } else {
- temp_fill = NOP_OPCODE;
- }
- /* Only make a frag if we HAVE to. . . */
- if (temp && ! need_pass_2)
- frag_align(temp, (int)temp_fill);
-
- demand_empty_rest_of_line();
+ register unsigned int temp;
+ register long temp_fill;
+ unsigned int i = 0;
+ unsigned long max_alignment = 1 << 15;
+
+ if (is_end_of_line[*input_line_pointer])
+ temp = arg; /* Default value from pseudo-op table */
+ else
+ temp = get_absolute_expression ();
+
+ if (temp > max_alignment) {
+ as_bad("Alignment too large: %d. assumed.", temp = max_alignment);
+ }
+
+ /*
+ * For the sparc, `.align (1<<n)' actually means `.align n'
+ * so we have to convert it.
+ */
+ if (temp != 0) {
+ for (i = 0; (temp & 1) == 0; temp >>= 1, ++i)
+ ;
+ }
+ if (temp != 1)
+ as_bad("Alignment not a power of 2");
+
+ temp = i;
+ if (*input_line_pointer == ',') {
+ input_line_pointer ++;
+ temp_fill = get_absolute_expression ();
+ } else {
+ temp_fill = 0;
+ }
+ /* Only make a frag if we HAVE to. . . */
+ if (temp && ! need_pass_2)
+ frag_align(temp, (int)temp_fill);
+
+ demand_empty_rest_of_line();
} /* s_align_bytes() */
/* For machines where ".align 4" means align to 2**4 boundary. */
register int temp;
register long temp_fill;
long max_alignment = 15;
-
+
temp = get_absolute_expression ();
if (temp > max_alignment)
- as_bad("Alignment too large: %d. assumed.", temp = max_alignment);
+ as_bad("Alignment too large: %d. assumed.", temp = max_alignment);
else if (temp < 0) {
as_bad("Alignment negative. 0 assumed.");
temp = 0;
input_line_pointer ++;
temp_fill = get_absolute_expression ();
} else
- temp_fill = NOP_OPCODE;
+ temp_fill = 0;
/* Only make a frag if we HAVE to. . . */
if (temp && ! need_pass_2)
- frag_align (temp, (int)temp_fill);
-
+ frag_align (temp, (int)temp_fill);
+
record_alignment(now_seg, temp);
-
+
demand_empty_rest_of_line();
} /* s_align_ptwo() */
-
-void s_bss()
-{
- register int temp;
-
- temp = get_absolute_expression ();
- subseg_new (SEG_BSS, (subsegT)temp);
- demand_empty_rest_of_line();
-}
-
-
void s_comm() {
register char *name;
register char c;
register char *p;
register int temp;
register symbolS * symbolP;
-
+
name = input_line_pointer;
c = get_symbol_end();
/* just after name is now '\0' */
}
if (S_GET_VALUE(symbolP)) {
if (S_GET_VALUE(symbolP) != temp)
- as_bad("Length of .comm \"%s\" is already %d. Not changed to %d.",
- S_GET_NAME(symbolP),
- S_GET_VALUE(symbolP),
- temp);
+ as_bad("Length of .comm \"%s\" is already %d. Not changed to %d.",
+ S_GET_NAME(symbolP),
+ S_GET_VALUE(symbolP),
+ temp);
} else {
S_SET_VALUE(symbolP, temp);
S_SET_EXTERNAL(symbolP);
}
#ifdef VMS
if (!temp)
- symbolP->sy_other = const_flag;
+ symbolP->sy_other = const_flag;
#endif
know(symbolP->sy_frag == &zero_address_frag);
demand_empty_rest_of_line();
} /* s_comm() */
void
- s_data()
+s_data()
{
register int temp;
-
+
temp = get_absolute_expression ();
#ifdef MANY_SEGMENTS
subseg_new (SEG_E1, (subsegT)temp);
#else
subseg_new (SEG_DATA, (subsegT)temp);
#endif
-
+
#ifdef VMS
const_flag = 0;
#endif
void s_app_file() {
register char *s;
int length;
-
+
/* Some assemblers tolerate immediately following '"' */
if ((s = demand_copy_string(&length)) != 0) {
new_logical_line(s, -1);
long temp_size;
register long temp_fill;
char *p;
-
+
if (get_absolute_expression_and_terminator(& temp_repeat) != ',') {
input_line_pointer --; /* Backup over what was not a ','. */
as_bad("Expect comma after rep-size in .fill:");
return;
}
if (get_absolute_expression_and_terminator(& temp_size) != ',') {
- input_line_pointer --; /* Backup over what was not a ','. */
- as_bad("Expected comma after size in .fill");
- ignore_rest_of_line();
- return;
+ input_line_pointer --; /* Backup over what was not a ','. */
+ as_bad("Expected comma after size in .fill");
+ ignore_rest_of_line();
+ return;
}
/*
* This is to be compatible with BSD 4.2 AS, not for any rational reason.
temp_fill = get_absolute_expression ();
if (temp_size && !need_pass_2) {
p = frag_var(rs_fill, (int)temp_size, (int)temp_size, (relax_substateT)0, (symbolS *)0, temp_repeat, (char *)0);
- memset(p, '\0', (int) temp_size);
- /*
- * The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX flavoured AS.
- * The following bizzare behaviour is to be compatible with above.
- * I guess they tried to take up to 8 bytes from a 4-byte expression
- * and they forgot to sign extend. Un*x Sux.
- */
+ bzero (p, (int)temp_size);
+/*
+ * The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX flavoured AS.
+ * The following bizzare behaviour is to be compatible with above.
+ * I guess they tried to take up to 8 bytes from a 4-byte expression
+ * and they forgot to sign extend. Un*x Sux.
+ */
#define BSD_FILL_SIZE_CROCK_4 (4)
md_number_to_chars (p, temp_fill, temp_size > BSD_FILL_SIZE_CROCK_4 ? BSD_FILL_SIZE_CROCK_4 : (int)temp_size);
- /*
- * Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes)
- * but emits no error message because it seems a legal thing to do.
- * It is a degenerate case of .fill but could be emitted by a compiler.
- */
+/*
+ * Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes)
+ * but emits no error message because it seems a legal thing to do.
+ * It is a degenerate case of .fill but could be emitted by a compiler.
+ */
+ }
+ demand_empty_rest_of_line();
+}
+
+#ifdef DONTDEF
+void
+s_gdbbeg()
+{
+ register int temp;
+
+ temp = get_absolute_expression ();
+ if (temp < 0)
+ as_warn("Block number <0. Ignored.");
+ else if (flagseen ['G'])
+ gdb_block_beg ((long) temp, frag_now, (long)(obstack_next_free(& frags) - frag_now->fr_literal));
+ demand_empty_rest_of_line ();
+}
+
+void
+s_gdbblock()
+{
+ register int position;
+ int temp;
+
+ if (get_absolute_expression_and_terminator (&temp) != ',') {
+ as_bad("expected comma before position in .gdbblock");
+ --input_line_pointer;
+ ignore_rest_of_line ();
+ return;
+ }
+ position = get_absolute_expression ();
+ if (flagseen ['G'])
+ gdb_block_position ((long) temp, (long) position);
+ demand_empty_rest_of_line ();
+}
+
+void
+s_gdbend()
+{
+ register int temp;
+
+ temp = get_absolute_expression ();
+ if (temp < 0)
+ as_warn("Block number <0. Ignored.");
+ else if (flagseen ['G'])
+ gdb_block_end ((long) temp, frag_now, (long)(obstack_next_free(& frags) - frag_now->fr_literal));
+ demand_empty_rest_of_line ();
+}
+
+void
+s_gdbsym()
+{
+ register char *name,
+ *p;
+ register char c;
+ register symbolS * symbolP;
+ register int temp;
+
+ name = input_line_pointer;
+ c = get_symbol_end();
+ p = input_line_pointer;
+ symbolP = symbol_find_or_make(name);
+ *p = c;
+ SKIP_WHITESPACE();
+ if (* input_line_pointer != ',') {
+ as_bad("Expected comma after name");
+ ignore_rest_of_line();
+ return;
}
+ input_line_pointer ++;
+ if ((temp = get_absolute_expression ()) < 0) {
+ as_bad("Bad GDB symbol file offset (%d.) <0! Ignored.", temp);
+ ignore_rest_of_line();
+ return;
+ }
+ if (flagseen ['G'])
+ gdb_symbols_fixup (symbolP, (long)temp);
+ demand_empty_rest_of_line ();
+}
+
+void
+s_gdbline()
+{
+ int file_number,
+ lineno;
+
+ if (get_absolute_expression_and_terminator(&file_number) != ',') {
+ as_bad("expected comman after filenum in .gdbline");
+ ignore_rest_of_line();
+ return;
+ }
+ lineno=get_absolute_expression();
+ if (flagseen['G'])
+ gdb_line(file_number,lineno);
demand_empty_rest_of_line();
}
+
+void
+s_gdblinetab()
+{
+ int file_number,
+ offset;
+
+ if (get_absolute_expression_and_terminator(&file_number) != ',') {
+ as_bad("expected comma after filenum in .gdblinetab");
+ ignore_rest_of_line();
+ return;
+ }
+ offset=get_absolute_expression();
+ if (flagseen['G'])
+ gdb_line_tab(file_number,offset);
+ demand_empty_rest_of_line();
+}
+#endif
+
void s_globl() {
register char *name;
register int c;
register symbolS * symbolP;
-
+
do {
name = input_line_pointer;
c = get_symbol_end();
input_line_pointer++;
SKIP_WHITESPACE();
if (*input_line_pointer=='\n')
- c='\n';
+ c='\n';
}
} while(c==',');
demand_empty_rest_of_line();
register symbolS * symbolP;
const int max_alignment = 15;
int align = 0;
-
+
name = input_line_pointer;
c = get_symbol_end();
p = input_line_pointer;
ignore_rest_of_line();
return;
}
-
+
++input_line_pointer;
-
+
if (*input_line_pointer == '\n') {
as_bad("Missing size expression");
return;
}
-
+
if ((temp = get_absolute_expression ()) < 0) {
as_warn("BSS length (%d.) <0! Ignored.", temp);
ignore_rest_of_line();
return;
}
-
+
if (needs_align) {
align = 0;
SKIP_WHITESPACE();
record_alignment(SEG_BSS, align);
#endif
} /* if needs align */
-
+
*p = 0;
symbolP = symbol_find_or_make(name);
*p = c;
-
+
if (
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
S_GET_OTHER(symbolP) == 0 &&
local_bss_counter =
(local_bss_counter + align) & (~align);
}
-
+
S_SET_VALUE(symbolP,local_bss_counter);
S_SET_SEGMENT(symbolP, SEG_BSS);
#ifdef OBJ_COFF
local_bss_counter += temp;
} else {
as_bad("Ignoring attempt to re-define symbol from %d. to %d.",
- S_GET_VALUE(symbolP), local_bss_counter);
+ S_GET_VALUE(symbolP), local_bss_counter);
}
demand_empty_rest_of_line();
-
+
return;
} /* s_lcomm() */
void
- s_long()
+s_long()
{
cons(4);
}
void
- s_int()
+s_int()
{
cons(4);
}
register segT segment;
expressionS exp;
register symbolS *symbolP;
-
+
/* we permit ANY defined expression: BSD4.2 demands constants */
name = input_line_pointer;
c = get_symbol_end();
segment = expression(& exp);
if (segment != SEG_ABSOLUTE
#ifdef MANY_SEGMENTS
- && ! ( segment >= SEG_E0 && segment <= SEG_UNKNOWN)
+ && ! ( segment >= SEG_E0 && segment <= SEG_UNKNOWN)
#else
- && segment != SEG_DATA
- && segment != SEG_TEXT
- && segment != SEG_BSS
+ && segment != SEG_DATA
+ && segment != SEG_TEXT
+ && segment != SEG_BSS
#endif
- && segment != SEG_REGISTER) {
+ && segment != SEG_REGISTER) {
as_bad("Bad expression: %s", segment_name(segment));
ignore_rest_of_line();
return;
}
*p = 0;
symbolP = symbol_find_or_make(name);
-
+
/* FIXME-SOON I pulled a (&& symbolP->sy_other == 0
&& symbolP->sy_desc == 0) out of this test
because coff doesn't have those fields, and I
think I understand why they were here so I may
have introduced a bug. As recently as 1.37 didn't
have this test anyway. xoxorich. */
-
+
if (S_GET_SEGMENT(symbolP) == SEG_UNKNOWN
&& S_GET_VALUE(symbolP) == 0) {
/* The name might be an undefined .global symbol; be
expressionS exp;
register long temp_fill;
register char *p;
- /*
- * Don't believe the documentation of BSD 4.2 AS.
- * There is no such thing as a sub-segment-relative origin.
- * Any absolute origin is given a warning, then assumed to be segment-relative.
- * Any segmented origin expression ("foo+42") had better be in the right
- * segment or the .org is ignored.
- *
- * BSD 4.2 AS warns if you try to .org backwards. We cannot because we
- * never know sub-segment sizes when we are reading code.
- * BSD will crash trying to emit -ve numbers of filler bytes in certain
- * .orgs. We don't crash, but see as-write for that code.
- */
- /*
- * Don't make frag if need_pass_2==1.
- */
+/*
+ * Don't believe the documentation of BSD 4.2 AS.
+ * There is no such thing as a sub-segment-relative origin.
+ * Any absolute origin is given a warning, then assumed to be segment-relative.
+ * Any segmented origin expression ("foo+42") had better be in the right
+ * segment or the .org is ignored.
+ *
+ * BSD 4.2 AS warns if you try to .org backwards. We cannot because we
+ * never know sub-segment sizes when we are reading code.
+ * BSD will crash trying to emit -ve numbers of filler bytes in certain
+ * .orgs. We don't crash, but see as-write for that code.
+ */
+/*
+ * Don't make frag if need_pass_2==1.
+ */
segment = get_known_segmented_expression(&exp);
if (*input_line_pointer == ',') {
input_line_pointer ++;
temp_fill = get_absolute_expression ();
} else
- temp_fill = 0;
+ temp_fill = 0;
if (! need_pass_2) {
if (segment != now_seg && segment != SEG_ABSOLUTE)
as_bad("Invalid segment \"%s\". Segment \"%s\" assumed.",
register char delim;
register char *end_name;
register symbolS *symbolP;
-
+
/*
* Especial apologies for the random logic:
* this just grew, and could be parsed much more simply!
end_name = input_line_pointer;
*end_name = delim;
SKIP_WHITESPACE();
-
+
if (*input_line_pointer != ',') {
*end_name = 0;
as_bad("Expected comma after name \"%s\"", name);
ignore_rest_of_line();
return;
}
-
+
input_line_pointer ++;
*end_name = 0;
-
+
if (name[0]=='.' && name[1]=='\0') {
/* Turn '. = mumble' into a .org mumble */
register segT segment;
expressionS exp;
register char *ptr;
-
+
segment = get_known_segmented_expression(& exp);
-
+
if (!need_pass_2) {
if (segment != now_seg && segment != SEG_ABSOLUTE)
as_bad("Invalid segment \"%s\". Segment \"%s\" assumed.",
- segment_name(segment),
- segment_name (now_seg));
+ segment_name(segment),
+ segment_name (now_seg));
ptr = frag_var(rs_org, 1, 1, (relax_substateT)0, exp.X_add_symbol,
exp.X_add_number, (char *)0);
*ptr= 0;
} /* if (ok to make frag) */
-
+
*end_name = delim;
return;
}
-
+
if ((symbolP = symbol_find(name)) == NULL
&& (symbolP = md_undefined_symbol(name)) == NULL) {
symbolP = symbol_new(name,
/* "set" symbols are local unless otherwise specified. */
SF_SET_LOCAL(symbolP);
#endif /* OBJ_COFF */
-
+
} /* make a new symbol */
-
+
symbol_table_insert(symbolP);
-
+
*end_name = delim;
pseudo_set(symbolP);
demand_empty_rest_of_line();
long temp_repeat;
register long temp_fill;
register char *p;
-
+
/* Just like .fill, but temp_size = 1 */
if (get_absolute_expression_and_terminator(& temp_repeat) == ',') {
temp_fill = get_absolute_expression ();
}
if (! need_pass_2) {
p = frag_var (rs_fill, 1, 1, (relax_substateT)0, (symbolS *)0,
- temp_repeat, (char *)0);
+ temp_repeat, (char *)0);
* p = temp_fill;
}
demand_empty_rest_of_line();
} /* s_space() */
void
- s_text()
+s_text()
{
register int temp;
-
+
temp = get_absolute_expression ();
#ifdef MANY_SEGMENTS
subseg_new (SEG_E0, (subsegT)temp);
} /* Return pointing just after end-of-line. */
void
- ignore_rest_of_line() /* For suspect lines: gives warning. */
+ignore_rest_of_line() /* For suspect lines: gives warning. */
{
- if (! is_end_of_line [* input_line_pointer])
- {
- if (isprint(*input_line_pointer))
- as_bad("Rest of line ignored. First ignored character is `%c'.",
- *input_line_pointer);
- else
- as_bad("Rest of line ignored. First ignored character valued 0x%x.",
- *input_line_pointer);
- while (input_line_pointer < buffer_limit
- && ! is_end_of_line [* input_line_pointer])
- {
- input_line_pointer ++;
- }
- }
- input_line_pointer ++; /* Return pointing just after end-of-line. */
- know(is_end_of_line [input_line_pointer [-1]]);
+ if (! is_end_of_line [* input_line_pointer])
+ {
+ if (isprint(*input_line_pointer))
+ as_bad("Rest of line ignored. First ignored character is `%c'.",
+ *input_line_pointer);
+ else
+ as_bad("Rest of line ignored. First ignored character valued 0x%x.",
+ *input_line_pointer);
+ while (input_line_pointer < buffer_limit
+ && ! is_end_of_line [* input_line_pointer])
+ {
+ input_line_pointer ++;
+ }
+ }
+ input_line_pointer ++; /* Return pointing just after end-of-line. */
+ know(is_end_of_line [input_line_pointer [-1]]);
}
/*
* May set need_pass_2 == 1.
*/
void
- pseudo_set (symbolP)
-symbolS * symbolP;
+pseudo_set (symbolP)
+ symbolS * symbolP;
{
- expressionS exp;
- register segT segment;
+ expressionS exp;
+ register segT segment;
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- int ext;
+ int ext;
#endif /* OBJ_AOUT or OBJ_BOUT */
-
- know(symbolP); /* NULL pointer is logic error. */
+
+ know(symbolP); /* NULL pointer is logic error. */
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- ext=S_IS_EXTERNAL(symbolP);
+ ext=S_IS_EXTERNAL(symbolP);
#endif /* OBJ_AOUT or OBJ_BOUT */
-
- if ((segment = expression(& exp)) == SEG_ABSENT)
- {
- as_bad("Missing expression: absolute 0 assumed");
- exp . X_seg = SEG_ABSOLUTE;
- exp . X_add_number = 0;
- }
-
- switch (segment)
- {
- case SEG_BIG:
- as_bad("%s number invalid. Absolute 0 assumed.",
- exp . X_add_number > 0 ? "Bignum" : "Floating-Point");
- S_SET_SEGMENT(symbolP, SEG_ABSOLUTE);
+
+ if ((segment = expression(& exp)) == SEG_ABSENT)
+ {
+ as_bad("Missing expression: absolute 0 assumed");
+ exp . X_seg = SEG_ABSOLUTE;
+ exp . X_add_number = 0;
+ }
+
+ switch (segment)
+ {
+ case SEG_REGISTER:
+ S_SET_SEGMENT(symbolP, SEG_REGISTER);
+ S_SET_VALUE(symbolP, exp.X_add_number);
+ symbolP->sy_frag = & zero_address_frag;
+ break;
+
+ case SEG_BIG:
+ as_bad("%s number invalid. Absolute 0 assumed.",
+ exp . X_add_number > 0 ? "Bignum" : "Floating-Point");
+ S_SET_SEGMENT(symbolP, SEG_ABSOLUTE);
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- ext ? S_SET_EXTERNAL(symbolP) :
- S_CLEAR_EXTERNAL(symbolP);
+ ext ? S_SET_EXTERNAL(symbolP) :
+ S_CLEAR_EXTERNAL(symbolP);
#endif /* OBJ_AOUT or OBJ_BOUT */
- S_SET_VALUE(symbolP, 0);
- symbolP->sy_frag = & zero_address_frag;
- break;
-
- case SEG_ABSENT:
- as_warn("No expression: Using absolute 0");
- S_SET_SEGMENT(symbolP, SEG_ABSOLUTE);
+ S_SET_VALUE(symbolP, 0);
+ symbolP->sy_frag = & zero_address_frag;
+ break;
+
+ case SEG_ABSENT:
+ as_warn("No expression: Using absolute 0");
+ S_SET_SEGMENT(symbolP, SEG_ABSOLUTE);
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- ext ? S_SET_EXTERNAL(symbolP) :
- S_CLEAR_EXTERNAL(symbolP);
+ ext ? S_SET_EXTERNAL(symbolP) :
+ S_CLEAR_EXTERNAL(symbolP);
#endif /* OBJ_AOUT or OBJ_BOUT */
- S_SET_VALUE(symbolP, 0);
- symbolP->sy_frag = & zero_address_frag;
- break;
-
- case SEG_DIFFERENCE:
- if (exp.X_add_symbol && exp.X_subtract_symbol
- && (S_GET_SEGMENT(exp.X_add_symbol) ==
- S_GET_SEGMENT(exp.X_subtract_symbol))) {
- if (exp.X_add_symbol->sy_frag != exp.X_subtract_symbol->sy_frag) {
- as_bad("Unknown expression: symbols %s and %s are in different frags.",
- S_GET_NAME(exp.X_add_symbol), S_GET_NAME(exp.X_subtract_symbol));
- need_pass_2++;
- }
- exp.X_add_number+=S_GET_VALUE(exp.X_add_symbol) -
- S_GET_VALUE(exp.X_subtract_symbol);
- } else
- as_bad("Complex expression. Absolute segment assumed.");
- case SEG_ABSOLUTE:
- S_SET_SEGMENT(symbolP, SEG_ABSOLUTE);
+ S_SET_VALUE(symbolP, 0);
+ symbolP->sy_frag = & zero_address_frag;
+ break;
+
+ case SEG_DIFFERENCE:
+ if (exp.X_add_symbol && exp.X_subtract_symbol
+ && (S_GET_SEGMENT(exp.X_add_symbol) ==
+ S_GET_SEGMENT(exp.X_subtract_symbol))) {
+ if (exp.X_add_symbol->sy_frag != exp.X_subtract_symbol->sy_frag) {
+ as_bad("Unknown expression: symbols %s and %s are in different frags.",
+ S_GET_NAME(exp.X_add_symbol), S_GET_NAME(exp.X_subtract_symbol));
+ need_pass_2++;
+ }
+ exp.X_add_number+=S_GET_VALUE(exp.X_add_symbol) -
+ S_GET_VALUE(exp.X_subtract_symbol);
+ } else
+ as_bad("Complex expression. Absolute segment assumed.");
+ case SEG_ABSOLUTE:
+ S_SET_SEGMENT(symbolP, SEG_ABSOLUTE);
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- ext ? S_SET_EXTERNAL(symbolP) :
- S_CLEAR_EXTERNAL(symbolP);
+ ext ? S_SET_EXTERNAL(symbolP) :
+ S_CLEAR_EXTERNAL(symbolP);
#endif /* OBJ_AOUT or OBJ_BOUT */
- S_SET_VALUE(symbolP, exp.X_add_number);
- symbolP->sy_frag = & zero_address_frag;
- break;
-
- default:
+ S_SET_VALUE(symbolP, exp.X_add_number);
+ symbolP->sy_frag = & zero_address_frag;
+ break;
+
+ default:
#ifdef MANY_SEGMENTS
- S_SET_SEGMENT(symbolP, segment);
+ S_SET_SEGMENT(symbolP, segment);
#else
- switch(segment) {
- case SEG_DATA: S_SET_SEGMENT(symbolP, SEG_DATA); break;
- case SEG_TEXT: S_SET_SEGMENT(symbolP, SEG_TEXT); break;
- case SEG_BSS: S_SET_SEGMENT(symbolP, SEG_BSS); break;
- default: as_fatal("failed sanity check.");
- } /* switch on segment */
+ switch(segment) {
+ case SEG_DATA: S_SET_SEGMENT(symbolP, SEG_DATA); break;
+ case SEG_TEXT: S_SET_SEGMENT(symbolP, SEG_TEXT); break;
+ case SEG_BSS: S_SET_SEGMENT(symbolP, SEG_BSS); break;
+
+ default: as_fatal("failed sanity check.");
+ } /* switch on segment */
#endif
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- if (ext) {
- S_SET_EXTERNAL(symbolP);
- } else {
- S_CLEAR_EXTERNAL(symbolP);
- } /* if external */
+ if (ext) {
+ S_SET_EXTERNAL(symbolP);
+ } else {
+ S_CLEAR_EXTERNAL(symbolP);
+ } /* if external */
#endif /* OBJ_AOUT or OBJ_BOUT */
-
- S_SET_VALUE(symbolP, exp.X_add_number + S_GET_VALUE(exp.X_add_symbol));
- symbolP->sy_frag = exp . X_add_symbol->sy_frag;
- break;
-
- case SEG_PASS1: /* Not an error. Just try another pass. */
- symbolP->sy_forward=exp.X_add_symbol;
- as_bad("Unknown expression");
- know(need_pass_2 == 1);
- break;
-
- case SEG_UNKNOWN:
- symbolP->sy_forward=exp.X_add_symbol;
- /* as_warn("unknown symbol"); */
- /* need_pass_2 = 1; */
- break;
-
-
-
- }
+
+ S_SET_VALUE(symbolP, exp.X_add_number + S_GET_VALUE(exp.X_add_symbol));
+ symbolP->sy_frag = exp . X_add_symbol->sy_frag;
+ break;
+
+ case SEG_PASS1: /* Not an error. Just try another pass. */
+ symbolP->sy_forward=exp.X_add_symbol;
+ as_bad("Unknown expression");
+ know(need_pass_2 == 1);
+ break;
+
+ case SEG_UNKNOWN:
+ symbolP->sy_forward=exp.X_add_symbol;
+ /* as_warn("unknown symbol"); */
+ /* need_pass_2 = 1; */
+ break;
+
+
+
+ }
}
\f
/*
* in the case of a long. Not worth the crocks required to fix it.
*/
-/* worker to do .byte etc statements */
-/* clobbers input_line_pointer, checks */
-/* end-of-line. */
+ /* worker to do .byte etc statements */
+ /* clobbers input_line_pointer, checks */
+ /* end-of-line. */
void cons(nbytes)
register unsigned int nbytes; /* 1=.byte, 2=.word, 4=.long */
{
- register char c;
- register long mask; /* High-order bits we will left-truncate, */
- /* but includes sign bit also. */
- register long get; /* what we get */
- register long use; /* get after truncation. */
- register long unmask; /* what bits we will store */
- register char * p;
- register segT segment;
- expressionS exp;
-
- /*
- * Input_line_pointer->1st char after pseudo-op-code and could legally
- * be a end-of-line. (Or, less legally an eof - which we cope with.)
- */
- /* JF << of >= number of bits in the object is undefined. In particular
- SPARC (Sun 4) has problems */
-
- if (nbytes>=sizeof(long)) {
- mask = 0;
- } else {
- mask = ~0 << (BITS_PER_CHAR * nbytes); /* Don't store these bits. */
- } /* bigger than a long */
-
- unmask = ~mask; /* Do store these bits. */
-
+ register char c;
+ register long mask; /* High-order bits we will left-truncate, */
+ /* but includes sign bit also. */
+ register long get; /* what we get */
+ register long use; /* get after truncation. */
+ register long unmask; /* what bits we will store */
+ register char * p;
+ register segT segment;
+ expressionS exp;
+
+ /*
+ * Input_line_pointer->1st char after pseudo-op-code and could legally
+ * be a end-of-line. (Or, less legally an eof - which we cope with.)
+ */
+ /* JF << of >= number of bits in the object is undefined. In particular
+ SPARC (Sun 4) has problems */
+
+ if (nbytes>=sizeof(long)) {
+ mask = 0;
+ } else {
+ mask = ~0 << (BITS_PER_CHAR * nbytes); /* Don't store these bits. */
+ } /* bigger than a long */
+
+ unmask = ~mask; /* Do store these bits. */
+
#ifdef NEVER
- "Do this mod if you want every overflow check to assume SIGNED 2's complement data.";
- mask = ~ (unmask >> 1); /* Includes sign bit now. */
+ "Do this mod if you want every overflow check to assume SIGNED 2's complement data.";
+ mask = ~ (unmask >> 1); /* Includes sign bit now. */
#endif
-
- /*
- * The following awkward logic is to parse ZERO or more expressions,
- * comma seperated. Recall an expression includes its leading &
- * trailing blanks. We fake a leading ',' if there is (supposed to
- * be) a 1st expression, and keep demanding 1 expression for each ','.
- */
- if (is_it_end_of_statement()) {
- c = 0; /* Skip loop. */
- input_line_pointer++; /* Matches end-of-loop 'correction'. */
- } else {
- c = ',';
- } /* if the end else fake it */
-
- /* Do loop. */
- while (c == ',') {
+
+ /*
+ * The following awkward logic is to parse ZERO or more expressions,
+ * comma seperated. Recall an expression includes its leading &
+ * trailing blanks. We fake a leading ',' if there is (supposed to
+ * be) a 1st expression, and keep demanding 1 expression for each ','.
+ */
+ if (is_it_end_of_statement()) {
+ c = 0; /* Skip loop. */
+ input_line_pointer++; /* Matches end-of-loop 'correction'. */
+ } else {
+ c = ',';
+ } /* if the end else fake it */
+
+ /* Do loop. */
+ while (c == ',') {
#ifdef WANT_BITFIELDS
- unsigned int bits_available = BITS_PER_CHAR * nbytes;
- /* used for error messages and rescanning */
- char *hold = input_line_pointer;
+ unsigned int bits_available = BITS_PER_CHAR * nbytes;
+ /* used for error messages and rescanning */
+ char *hold = input_line_pointer;
#endif /* WANT_BITFIELDS */
-
- /* At least scan over the expression. */
- segment = expression(&exp);
-
+#ifdef MRI
+ if (*input_line_pointer == '\'')
+ {
+ /* An MRI style string, cut into as many bytes as will fit
+ into a nbyte chunk, left justify if necessary, and sepatate
+ with commas so we can try again later */
+ int scan = 0;
+ unsigned int result = 0;
+ input_line_pointer++;
+ for (scan = 0; scan < nbytes; scan++)
+ {
+ if (*input_line_pointer == '\'')
+ {
+ if (input_line_pointer[1] == '\'')
+ {
+ input_line_pointer++;
+ }
+ else
+ break;
+ }
+ result = (result << 8) | (*input_line_pointer++);
+ }
+
+ /* Left justify */
+ while (scan < nbytes)
+ {
+ result <<=8;
+ scan++;
+ }
+ /* Create correct expression */
+ exp.X_add_symbol = 0;
+ exp.X_add_number = result;
+ exp.X_seg = segment = SEG_ABSOLUTE;
+ /* Fake it so that we can read the next char too */
+ if (input_line_pointer[0] != '\'' ||
+ (input_line_pointer[0] == '\'' && input_line_pointer[1] == '\''))
+ {
+ input_line_pointer-=2;
+ input_line_pointer[0] = ',';
+ input_line_pointer[1] = '\'';
+ }
+ else
+ input_line_pointer++;
+
+ }
+ else
+#endif
+ /* At least scan over the expression. */
+ segment = expression(&exp);
+
#ifdef WANT_BITFIELDS
- /* Some other assemblers, (eg, asm960), allow
- bitfields after ".byte" as w:x,y:z, where w and
- y are bitwidths and x and y are values. They
- then pack them all together. We do a little
- better in that we allow them in words, longs,
- etc. and we'll pack them in target byte order
- for you.
-
- The rules are: pack least significat bit first,
- if a field doesn't entirely fit, put it in the
- next unit. Overflowing the bitfield is
- explicitly *not* even a warning. The bitwidth
- should be considered a "mask".
-
- FIXME-SOMEDAY: If this is considered generally
- useful, this logic should probably be reworked.
- xoxorich. */
-
- if (*input_line_pointer == ':') { /* bitfields */
- long value = 0;
-
- for (;;) {
- unsigned long width;
-
- if (*input_line_pointer != ':') {
- input_line_pointer = hold;
- break;
- } /* next piece is not a bitfield */
-
- /* In the general case, we can't allow
- full expressions with symbol
- differences and such. The relocation
- entries for symbols not defined in this
- assembly would require arbitrary field
- widths, positions, and masks which most
- of our current object formats don't
- support.
-
- In the specific case where a symbol
- *is* defined in this assembly, we
- *could* build fixups and track it, but
- this could lead to confusion for the
- backends. I'm lazy. I'll take any
- SEG_ABSOLUTE. I think that means that
- you can use a previous .set or
- .equ type symbol. xoxorich. */
-
- if (segment == SEG_ABSENT) {
- as_warn("Using a bit field width of zero.");
- exp.X_add_number = 0;
- segment = SEG_ABSOLUTE;
- } /* implied zero width bitfield */
-
- if (segment != SEG_ABSOLUTE) {
- *input_line_pointer = '\0';
- as_bad("Field width \"%s\" too complex for a bitfield.\n", hold);
- *input_line_pointer = ':';
- demand_empty_rest_of_line();
- return;
- } /* too complex */
-
- if ((width = exp.X_add_number) > (BITS_PER_CHAR * nbytes)) {
- as_warn("Field width %d too big to fit in %d bytes: truncated to %d bits.",
- width, nbytes, (BITS_PER_CHAR * nbytes));
- width = BITS_PER_CHAR * nbytes;
- } /* too big */
-
- if (width > bits_available) {
- /* FIXME-SOMEDAY: backing up and
- reparsing is wasteful */
- input_line_pointer = hold;
- exp.X_add_number = value;
- break;
- } /* won't fit */
-
- hold = ++input_line_pointer; /* skip ':' */
-
- if ((segment = expression(&exp)) != SEG_ABSOLUTE) {
- char cache = *input_line_pointer;
-
- *input_line_pointer = '\0';
- as_bad("Field value \"%s\" too complex for a bitfield.\n", hold);
- *input_line_pointer = cache;
- demand_empty_rest_of_line();
- return;
- } /* too complex */
-
- value |= (~(-1 << width) & exp.X_add_number)
- << ((BITS_PER_CHAR * nbytes) - bits_available);
-
- if ((bits_available -= width) == 0
- || is_it_end_of_statement()
- || *input_line_pointer != ',') {
- break;
- } /* all the bitfields we're gonna get */
-
- hold = ++input_line_pointer;
- segment = expression(&exp);
- } /* forever loop */
-
- exp.X_add_number = value;
- segment = SEG_ABSOLUTE;
- } /* if looks like a bitfield */
+ /* Some other assemblers, (eg, asm960), allow
+ bitfields after ".byte" as w:x,y:z, where w and
+ y are bitwidths and x and y are values. They
+ then pack them all together. We do a little
+ better in that we allow them in words, longs,
+ etc. and we'll pack them in target byte order
+ for you.
+
+ The rules are: pack least significat bit first,
+ if a field doesn't entirely fit, put it in the
+ next unit. Overflowing the bitfield is
+ explicitly *not* even a warning. The bitwidth
+ should be considered a "mask".
+
+ FIXME-SOMEDAY: If this is considered generally
+ useful, this logic should probably be reworked.
+ xoxorich. */
+
+ if (*input_line_pointer == ':') { /* bitfields */
+ long value = 0;
+
+ for (;;) {
+ unsigned long width;
+
+ if (*input_line_pointer != ':') {
+ input_line_pointer = hold;
+ break;
+ } /* next piece is not a bitfield */
+
+ /* In the general case, we can't allow
+ full expressions with symbol
+ differences and such. The relocation
+ entries for symbols not defined in this
+ assembly would require arbitrary field
+ widths, positions, and masks which most
+ of our current object formats don't
+ support.
+
+ In the specific case where a symbol
+ *is* defined in this assembly, we
+ *could* build fixups and track it, but
+ this could lead to confusion for the
+ backends. I'm lazy. I'll take any
+ SEG_ABSOLUTE. I think that means that
+ you can use a previous .set or
+ .equ type symbol. xoxorich. */
+
+ if (segment == SEG_ABSENT) {
+ as_warn("Using a bit field width of zero.");
+ exp.X_add_number = 0;
+ segment = SEG_ABSOLUTE;
+ } /* implied zero width bitfield */
+
+ if (segment != SEG_ABSOLUTE) {
+ *input_line_pointer = '\0';
+ as_bad("Field width \"%s\" too complex for a bitfield.\n", hold);
+ *input_line_pointer = ':';
+ demand_empty_rest_of_line();
+ return;
+ } /* too complex */
+
+ if ((width = exp.X_add_number) > (BITS_PER_CHAR * nbytes)) {
+ as_warn("Field width %d too big to fit in %d bytes: truncated to %d bits.",
+ width, nbytes, (BITS_PER_CHAR * nbytes));
+ width = BITS_PER_CHAR * nbytes;
+ } /* too big */
+
+ if (width > bits_available) {
+ /* FIXME-SOMEDAY: backing up and
+ reparsing is wasteful */
+ input_line_pointer = hold;
+ exp.X_add_number = value;
+ break;
+ } /* won't fit */
+
+ hold = ++input_line_pointer; /* skip ':' */
+
+ if ((segment = expression(&exp)) != SEG_ABSOLUTE) {
+ char cache = *input_line_pointer;
+
+ *input_line_pointer = '\0';
+ as_bad("Field value \"%s\" too complex for a bitfield.\n", hold);
+ *input_line_pointer = cache;
+ demand_empty_rest_of_line();
+ return;
+ } /* too complex */
+
+ value |= (~(-1 << width) & exp.X_add_number)
+ << ((BITS_PER_CHAR * nbytes) - bits_available);
+
+ if ((bits_available -= width) == 0
+ || is_it_end_of_statement()
+ || *input_line_pointer != ',') {
+ break;
+ } /* all the bitfields we're gonna get */
+
+ hold = ++input_line_pointer;
+ segment = expression(&exp);
+ } /* forever loop */
+
+ exp.X_add_number = value;
+ segment = SEG_ABSOLUTE;
+ } /* if looks like a bitfield */
#endif /* WANT_BITFIELDS */
-
- if (!need_pass_2) { /* Still worthwhile making frags. */
-
- /* Don't call this if we are going to junk this pass anyway! */
- know(segment != SEG_PASS1);
-
- if (segment == SEG_DIFFERENCE && exp.X_add_symbol == NULL) {
- as_bad("Subtracting symbol \"%s\"(segment\"%s\") is too hard. Absolute segment assumed.",
- S_GET_NAME(exp.X_subtract_symbol),
- segment_name(S_GET_SEGMENT(exp.X_subtract_symbol)));
- segment = SEG_ABSOLUTE;
- /* Leave exp . X_add_number alone. */
- }
- p = frag_more(nbytes);
- switch (segment) {
- case SEG_BIG:
- as_bad("%s number invalid. Absolute 0 assumed.",
- exp . X_add_number > 0 ? "Bignum" : "Floating-Point");
- md_number_to_chars (p, (long)0, nbytes);
- break;
-
- case SEG_ABSENT:
- as_warn("0 assumed for missing expression");
- exp . X_add_number = 0;
- know(exp . X_add_symbol == NULL);
- /* fall into SEG_ABSOLUTE */
- case SEG_ABSOLUTE:
- get = exp . X_add_number;
- use = get & unmask;
- if ((get & mask) && (get & mask) != mask)
- { /* Leading bits contain both 0s & 1s. */
- as_warn("Value 0x%x truncated to 0x%x.", get, use);
- }
- md_number_to_chars (p, use, nbytes); /* put bytes in right order. */
- break;
-
- case SEG_DIFFERENCE:
+
+ if (!need_pass_2) { /* Still worthwhile making frags. */
+
+ /* Don't call this if we are going to junk this pass anyway! */
+ know(segment != SEG_PASS1);
+
+ if (segment == SEG_DIFFERENCE && exp.X_add_symbol == NULL) {
+ as_bad("Subtracting symbol \"%s\"(segment\"%s\") is too hard. Absolute segment assumed.",
+ S_GET_NAME(exp.X_subtract_symbol),
+ segment_name(S_GET_SEGMENT(exp.X_subtract_symbol)));
+ segment = SEG_ABSOLUTE;
+ /* Leave exp . X_add_number alone. */
+ }
+ p = frag_more(nbytes);
+ switch (segment) {
+ case SEG_BIG:
+ as_bad("%s number invalid. Absolute 0 assumed.",
+ exp . X_add_number > 0 ? "Bignum" : "Floating-Point");
+ md_number_to_chars (p, (long)0, nbytes);
+ break;
+
+ case SEG_ABSENT:
+ as_warn("0 assumed for missing expression");
+ exp . X_add_number = 0;
+ know(exp . X_add_symbol == NULL);
+ /* fall into SEG_ABSOLUTE */
+ case SEG_ABSOLUTE:
+ get = exp . X_add_number;
+ use = get & unmask;
+ if ((get & mask) && (get & mask) != mask)
+ { /* Leading bits contain both 0s & 1s. */
+ as_warn("Value 0x%x truncated to 0x%x.", get, use);
+ }
+ md_number_to_chars (p, use, nbytes); /* put bytes in right order. */
+ break;
+
+ case SEG_DIFFERENCE:
#ifndef WORKING_DOT_WORD
- if (nbytes==2) {
- struct broken_word *x;
-
- x=(struct broken_word *)xmalloc(sizeof(struct broken_word));
- x->next_broken_word=broken_words;
- broken_words=x;
- x->frag=frag_now;
- x->word_goes_here=p;
- x->dispfrag=0;
- x->add=exp.X_add_symbol;
- x->sub=exp.X_subtract_symbol;
- x->addnum=exp.X_add_number;
- x->added=0;
- new_broken_words++;
- break;
- }
- /* Else Fall through into. . . */
+ if (nbytes==2) {
+ struct broken_word *x;
+
+ x=(struct broken_word *)xmalloc(sizeof(struct broken_word));
+ x->next_broken_word=broken_words;
+ broken_words=x;
+ x->frag=frag_now;
+ x->word_goes_here=p;
+ x->dispfrag=0;
+ x->add=exp.X_add_symbol;
+ x->sub=exp.X_subtract_symbol;
+ x->addnum=exp.X_add_number;
+ x->added=0;
+ new_broken_words++;
+ break;
+ }
+ /* Else Fall through into. . . */
#endif
- default:
- case SEG_UNKNOWN:
+ default:
+ case SEG_UNKNOWN:
#ifdef TC_NS32K
- fix_new_ns32k(frag_now, p - frag_now->fr_literal, nbytes,
- exp.X_add_symbol, exp.X_subtract_symbol,
- exp.X_add_number, 0, 0, 2, 0, 0);
+ fix_new_ns32k (frag_now, p - frag_now->fr_literal, nbytes,
+ exp . X_add_symbol, exp . X_subtract_symbol,
+ exp . X_add_number, 0, 0, 2, 0, 0);
#else
- fix_new(frag_now, p - frag_now->fr_literal, nbytes,
- exp.X_add_symbol, exp.X_subtract_symbol,
- exp.X_add_number, 0, RELOC_32);
+# if defined(TC_SPARC) || defined(TC_A29K)
+ fix_new (frag_now, p - frag_now->fr_literal, nbytes,
+ exp . X_add_symbol, exp . X_subtract_symbol,
+ exp . X_add_number, 0, RELOC_32);
+# else
+# if defined(TC_H8300)
+ fix_new (frag_now, p - frag_now->fr_literal, nbytes,
+ exp . X_add_symbol, exp . X_subtract_symbol,
+ exp . X_add_number, 0, R_RELWORD);
+
+# else
+ fix_new (frag_now, p - frag_now->fr_literal, nbytes,
+ exp . X_add_symbol, exp . X_subtract_symbol,
+ exp . X_add_number, 0, 0);
+
+# endif /* tc_h8300 */
+# endif /* tc_sparc|tc_a29k */
#endif /* TC_NS32K */
- break;
- } /* switch(segment) */
- } /* if (!need_pass_2) */
- c = *input_line_pointer++;
- } /* while(c==',') */
- input_line_pointer--; /* Put terminator back into stream. */
- demand_empty_rest_of_line();
+ break;
+ } /* switch(segment) */
+ } /* if (!need_pass_2) */
+ c = *input_line_pointer++;
+ } /* while(c==',') */
+ input_line_pointer--; /* Put terminator back into stream. */
+ demand_empty_rest_of_line();
} /* cons() */
\f
/*
/* 8=.quad 16=.octa ... */
void big_cons(nbytes)
-register int nbytes;
+ register int nbytes;
{
- register char c; /* input_line_pointer->c. */
- register int radix;
- register long length; /* Number of chars in an object. */
- register int digit; /* Value of 1 digit. */
- register int carry; /* For multi-precision arithmetic. */
- register int work; /* For multi-precision arithmetic. */
- register char * p; /* For multi-precision arithmetic. */
-
- extern char hex_value[]; /* In hex_value.c. */
-
- /*
- * The following awkward logic is to parse ZERO or more strings,
- * comma seperated. Recall an expression includes its leading &
- * trailing blanks. We fake a leading ',' if there is (supposed to
- * be) a 1st expression, and keep demanding 1 expression for each ','.
- */
- if (is_it_end_of_statement())
+ register char c; /* input_line_pointer->c. */
+ register int radix;
+ register long length; /* Number of chars in an object. */
+ register int digit; /* Value of 1 digit. */
+ register int carry; /* For multi-precision arithmetic. */
+ register int work; /* For multi-precision arithmetic. */
+ register char * p; /* For multi-precision arithmetic. */
+
+ extern char hex_value[]; /* In hex_value.c. */
+
+ /*
+ * The following awkward logic is to parse ZERO or more strings,
+ * comma seperated. Recall an expression includes its leading &
+ * trailing blanks. We fake a leading ',' if there is (supposed to
+ * be) a 1st expression, and keep demanding 1 expression for each ','.
+ */
+ if (is_it_end_of_statement())
+ {
+ c = 0; /* Skip loop. */
+ }
+ else
+ {
+ c = ','; /* Do loop. */
+ -- input_line_pointer;
+ }
+ while (c == ',')
+ {
+ ++ input_line_pointer;
+ SKIP_WHITESPACE();
+ c = * input_line_pointer;
+ /* C contains 1st non-blank character of what we hope is a number. */
+ if (c == '0')
+ {
+ c = * ++ input_line_pointer;
+ if (c == 'x' || c=='X')
{
- c = 0; /* Skip loop. */
+ c = * ++ input_line_pointer;
+ radix = 16;
}
- else
+ else
{
- c = ','; /* Do loop. */
- -- input_line_pointer;
+ radix = 8;
}
- while (c == ',')
+ }
+ else
+ {
+ radix = 10;
+ }
+ /*
+ * This feature (?) is here to stop people worrying about
+ * mysterious zero constants: which is what they get when
+ * they completely omit digits.
+ */
+ if (hex_value[c] >= radix) {
+ as_bad("Missing digits. 0 assumed.");
+ }
+ bignum_high = bignum_low - 1; /* Start constant with 0 chars. */
+ for(; (digit = hex_value [c]) < radix; c = * ++ input_line_pointer)
+ {
+ /* Multiply existing number by radix, then add digit. */
+ carry = digit;
+ for (p=bignum_low; p <= bignum_high; p++)
{
- ++ input_line_pointer;
- SKIP_WHITESPACE();
- c = * input_line_pointer;
- /* C contains 1st non-blank character of what we hope is a number. */
- if (c == '0')
- {
- c = * ++ input_line_pointer;
- if (c == 'x' || c=='X')
- {
- c = * ++ input_line_pointer;
- radix = 16;
- }
- else
- {
- radix = 8;
- }
- }
- else
- {
- radix = 10;
- }
- /*
- * This feature (?) is here to stop people worrying about
- * mysterious zero constants: which is what they get when
- * they completely omit digits.
- */
- if (hex_value[c] >= radix) {
- as_bad("Missing digits. 0 assumed.");
- }
- bignum_high = bignum_low - 1; /* Start constant with 0 chars. */
- for(; (digit = hex_value [c]) < radix; c = * ++ input_line_pointer)
- {
- /* Multiply existing number by radix, then add digit. */
- carry = digit;
- for (p=bignum_low; p <= bignum_high; p++)
- {
- work = (*p & MASK_CHAR) * radix + carry;
- *p = work & MASK_CHAR;
- carry = work >> BITS_PER_CHAR;
- }
- if (carry)
- {
- grow_bignum();
- * bignum_high = carry & MASK_CHAR;
- know((carry & ~ MASK_CHAR) == 0);
- }
- }
- length = bignum_high - bignum_low + 1;
- if (length > nbytes)
- {
- as_warn("Most significant bits truncated in integer constant.");
- }
- else
- {
- register long leading_zeroes;
-
- for(leading_zeroes = nbytes - length;
- leading_zeroes;
- leading_zeroes --)
- {
- grow_bignum();
- * bignum_high = 0;
- }
- }
- if (! need_pass_2)
- {
- p = frag_more (nbytes);
- memcpy(p, bignum_low, (int) nbytes);
- }
- /* C contains character after number. */
- SKIP_WHITESPACE();
- c = *input_line_pointer;
- /* C contains 1st non-blank character after number. */
+ work = (*p & MASK_CHAR) * radix + carry;
+ *p = work & MASK_CHAR;
+ carry = work >> BITS_PER_CHAR;
}
- demand_empty_rest_of_line();
-} /* big_cons() */
+ if (carry)
+ {
+ grow_bignum();
+ * bignum_high = carry & MASK_CHAR;
+ know((carry & ~ MASK_CHAR) == 0);
+ }
+ }
+ length = bignum_high - bignum_low + 1;
+ if (length > nbytes)
+ {
+ as_warn("Most significant bits truncated in integer constant.");
+ }
+ else
+ {
+ register long leading_zeroes;
-/* Extend bignum by 1 char. */
-static void grow_bignum() {
- register long length;
-
- bignum_high ++;
- if (bignum_high >= bignum_limit)
+ for(leading_zeroes = nbytes - length;
+ leading_zeroes;
+ leading_zeroes --)
{
- length = bignum_limit - bignum_low;
- bignum_low = xrealloc(bignum_low, length + length);
- bignum_high = bignum_low + length;
- bignum_limit = bignum_low + length + length;
+ grow_bignum();
+ * bignum_high = 0;
}
+ }
+ if (! need_pass_2)
+ {
+ p = frag_more (nbytes);
+ bcopy (bignum_low, p, (int)nbytes);
+ }
+ /* C contains character after number. */
+ SKIP_WHITESPACE();
+ c = * input_line_pointer;
+ /* C contains 1st non-blank character after number. */
+ }
+ demand_empty_rest_of_line();
+} /* big_cons() */
+
+ /* Extend bignum by 1 char. */
+static void grow_bignum() {
+ register long length;
+
+ bignum_high ++;
+ if (bignum_high >= bignum_limit)
+ {
+ length = bignum_limit - bignum_low;
+ bignum_low = xrealloc(bignum_low, length + length);
+ bignum_high = bignum_low + length;
+ bignum_limit = bignum_low + length + length;
+ }
} /* grow_bignum(); */
\f
/*
*/
void /* JF was static, but can't be if VAX.C is goning to use it */
- float_cons(float_type) /* Worker to do .float etc statements. */
-/* Clobbers input_line-pointer, checks end-of-line. */
-register int float_type; /* 'f':.ffloat ... 'F':.float ... */
+float_cons(float_type) /* Worker to do .float etc statements. */
+ /* Clobbers input_line-pointer, checks end-of-line. */
+ register int float_type; /* 'f':.ffloat ... 'F':.float ... */
{
- register char * p;
- register char c;
- int length; /* Number of chars in an object. */
- register char * err; /* Error from scanning floating literal. */
- char temp [MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT];
-
- /*
- * The following awkward logic is to parse ZERO or more strings,
- * comma seperated. Recall an expression includes its leading &
- * trailing blanks. We fake a leading ',' if there is (supposed to
- * be) a 1st expression, and keep demanding 1 expression for each ','.
- */
- if (is_it_end_of_statement())
- {
- c = 0; /* Skip loop. */
- ++ input_line_pointer; /*->past termintor. */
- }
- else
+ register char * p;
+ register char c;
+ int length; /* Number of chars in an object. */
+ register char * err; /* Error from scanning floating literal. */
+ char temp [MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT];
+
+ /*
+ * The following awkward logic is to parse ZERO or more strings,
+ * comma seperated. Recall an expression includes its leading &
+ * trailing blanks. We fake a leading ',' if there is (supposed to
+ * be) a 1st expression, and keep demanding 1 expression for each ','.
+ */
+ if (is_it_end_of_statement())
+ {
+ c = 0; /* Skip loop. */
+ ++ input_line_pointer; /*->past termintor. */
+ }
+ else
+ {
+ c = ','; /* Do loop. */
+ }
+ while (c == ',')
+ {
+ /* input_line_pointer->1st char of a flonum (we hope!). */
+ SKIP_WHITESPACE();
+ /* Skip any 0{letter} that may be present. Don't even check if the
+ * letter is legal. Someone may invent a "z" format and this routine
+ * has no use for such information. Lusers beware: you get
+ * diagnostics if your input is ill-conditioned.
+ */
+
+ if (input_line_pointer[0]=='0' && isalpha(input_line_pointer[1]))
+ input_line_pointer+=2;
+
+ err = md_atof (float_type, temp, &length);
+ know(length <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
+ know(length > 0);
+ if (* err)
+ {
+ as_bad("Bad floating literal: %s", err);
+ ignore_rest_of_line();
+ /* Input_line_pointer->just after end-of-line. */
+ c = 0; /* Break out of loop. */
+ }
+ else
+ {
+ if (! need_pass_2)
{
- c = ','; /* Do loop. */
+ p = frag_more (length);
+ bcopy (temp, p, length);
}
- while (c == ',') {
- /* input_line_pointer->1st char of a flonum (we hope!). */
- SKIP_WHITESPACE();
- /* Skip any 0{letter} that may be present. Don't even check if the
- * letter is legal. Someone may invent a "z" format and this routine
- * has no use for such information. Lusers beware: you get
- * diagnostics if your input is ill-conditioned.
- */
-
- if (input_line_pointer[0]=='0' && isalpha(input_line_pointer[1]))
- input_line_pointer+=2;
-
- err = md_atof (float_type, temp, &length);
- know(length <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
- know(length > 0);
- if (* err) {
- as_bad("Bad floating literal: %s", err);
- ignore_rest_of_line();
- /* Input_line_pointer->just after end-of-line. */
- c = 0; /* Break out of loop. */
- } else {
- if (! need_pass_2) {
- p = frag_more (length);
- memcpy(p, temp, length);
- }
- SKIP_WHITESPACE();
- c = *input_line_pointer++;
- /* C contains 1st non-white character after number. */
- /* input_line_pointer->just after terminator (c). */
- }
+ SKIP_WHITESPACE();
+ c = * input_line_pointer ++;
+ /* C contains 1st non-white character after number. */
+ /* input_line_pointer->just after terminator (c). */
}
- --input_line_pointer; /*->terminator (is not ','). */
- demand_empty_rest_of_line();
-} /* float_cons() */
+ }
+ -- input_line_pointer; /*->terminator (is not ','). */
+ demand_empty_rest_of_line();
+} /* float_cons() */
\f
/*
* stringer()
void stringer(append_zero ) /* Worker to do .ascii etc statements. */
-/* Checks end-of-line. */
-register int append_zero; /* 0: don't append '\0', else 1 */
+ /* Checks end-of-line. */
+ register int append_zero; /* 0: don't append '\0', else 1 */
{
- unsigned int c;
-
- /*
- * The following awkward logic is to parse ZERO or more strings,
- * comma seperated. Recall a string expression includes spaces
- * before the opening '\"' and spaces after the closing '\"'.
- * We fake a leading ',' if there is (supposed to be)
- * a 1st, expression. We keep demanding expressions for each
- * ','.
- */
- if (is_it_end_of_statement()) {
- c = 0; /* Skip loop. */
- ++ input_line_pointer; /* Compensate for end of loop. */
- } else {
- c = ','; /* Do loop. */
- }
-
- while (c == ',' || c == '<' || c == '"') {
- SKIP_WHITESPACE();
- switch (*input_line_pointer) {
- case '\"':
- ++input_line_pointer; /*->1st char of string. */
- while (is_a_char(c = next_char_of_string())) {
- FRAG_APPEND_1_CHAR(c);
- }
- if (append_zero) {
- FRAG_APPEND_1_CHAR(0);
- }
- know(input_line_pointer [-1] == '\"');
- break;
- case '<':
- input_line_pointer++;
- c =get_single_number();
- FRAG_APPEND_1_CHAR(c);
- if(*input_line_pointer != '>') {
- as_bad("Expected <nn>");
- }
- input_line_pointer++;
- break;
- case ',':
- input_line_pointer++;
- break;
- }
- SKIP_WHITESPACE();
- c = *input_line_pointer;
- }
-
- demand_empty_rest_of_line();
+ /* register char * p; JF unused */
+ /* register int length; JF unused */ /* Length of string we read, excluding */
+ /* trailing '\0' implied by closing quote. */
+ /* register char * where; JF unused */
+ /* register fragS * fragP; JF unused */
+ register unsigned int c;
+
+ /*
+ * The following awkward logic is to parse ZERO or more strings,
+ * comma seperated. Recall a string expression includes spaces
+ * before the opening '\"' and spaces after the closing '\"'.
+ * We fake a leading ',' if there is (supposed to be)
+ * a 1st, expression. We keep demanding expressions for each
+ * ','.
+ */
+ if (is_it_end_of_statement())
+ {
+ c = 0; /* Skip loop. */
+ ++ input_line_pointer; /* Compensate for end of loop. */
+ }
+ else
+ {
+ c = ','; /* Do loop. */
+ }
+ while (c == ',' || c == '<' || c == '"' ) {
+ SKIP_WHITESPACE();
+ switch (*input_line_pointer) {
+ case '\"':
+ ++input_line_pointer; /*->1st char of string. */
+ while (is_a_char(c = next_char_of_string())) {
+ FRAG_APPEND_1_CHAR(c);
+ }
+ if (append_zero) {
+ FRAG_APPEND_1_CHAR(0);
+ }
+ know(input_line_pointer [-1] == '\"');
+ break;
+ case '<':
+ input_line_pointer++;
+ c =get_single_number();
+ FRAG_APPEND_1_CHAR(c);
+ if(*input_line_pointer != '>') {
+ as_bad("Expected <nn>");
+ }
+ input_line_pointer++;
+ break;
+ case ',':
+ input_line_pointer++;
+ break;
+ }
+ SKIP_WHITESPACE();
+ c = *input_line_pointer;
+ }
+
+ demand_empty_rest_of_line();
} /* stringer() */
\f
-/* FIXME-SOMEDAY: I had trouble here on characters with the
- high bits set. We'll probably also have trouble with
- multibyte chars, wide chars, etc. Also be careful about
- returning values bigger than 1 byte. xoxorich. */
+ /* FIXME-SOMEDAY: I had trouble here on characters with the
+ high bits set. We'll probably also have trouble with
+ multibyte chars, wide chars, etc. Also be careful about
+ returning values bigger than 1 byte. xoxorich. */
-unsigned int next_char_of_string() {
+ unsigned int next_char_of_string() {
register unsigned int c;
c = *input_line_pointer++ & CHAR_MASK;
} /* next_char_of_string() */
\f
static segT
- get_segmented_expression (expP)
-register expressionS * expP;
+get_segmented_expression (expP)
+ register expressionS * expP;
{
- register segT retval;
-
- if ((retval = expression(expP)) == SEG_PASS1 || retval == SEG_ABSENT || retval == SEG_BIG)
- {
- as_bad("Expected address expression: absolute 0 assumed");
- retval = expP->X_seg = SEG_ABSOLUTE;
- expP->X_add_number = 0;
- expP->X_add_symbol = expP->X_subtract_symbol = 0;
- }
- return (retval); /* SEG_ ABSOLUTE,UNKNOWN,DATA,TEXT,BSS */
+ register segT retval;
+
+ if ((retval = expression(expP)) == SEG_PASS1 || retval == SEG_ABSENT || retval == SEG_BIG)
+ {
+ as_bad("Expected address expression: absolute 0 assumed");
+ retval = expP->X_seg = SEG_ABSOLUTE;
+ expP->X_add_number = 0;
+ expP->X_add_symbol = expP->X_subtract_symbol = 0;
+ }
+ return (retval); /* SEG_ ABSOLUTE,UNKNOWN,DATA,TEXT,BSS */
}
static segT get_known_segmented_expression(expP)
register expressionS *expP;
{
- register segT retval;
- register char * name1;
- register char * name2;
-
- if ((retval = get_segmented_expression (expP)) == SEG_UNKNOWN)
- {
- name1 = expP->X_add_symbol ? S_GET_NAME(expP->X_add_symbol) : "";
- name2 = expP->X_subtract_symbol ?
- S_GET_NAME(expP->X_subtract_symbol) :
- "";
- if (name1 && name2)
- {
- as_warn("Symbols \"%s\" \"%s\" are undefined: absolute 0 assumed.",
- name1, name2);
- }
- else
- {
- as_warn("Symbol \"%s\" undefined: absolute 0 assumed.",
- name1 ? name1 : name2);
- }
- retval = expP->X_seg = SEG_ABSOLUTE;
- expP->X_add_number = 0;
- expP->X_add_symbol = expP->X_subtract_symbol = NULL;
- }
+ register segT retval;
+ register char * name1;
+ register char * name2;
+
+ if ((retval = get_segmented_expression (expP)) == SEG_UNKNOWN)
+ {
+ name1 = expP->X_add_symbol ? S_GET_NAME(expP->X_add_symbol) : "";
+ name2 = expP->X_subtract_symbol ?
+ S_GET_NAME(expP->X_subtract_symbol) :
+ "";
+ if (name1 && name2)
+ {
+ as_warn("Symbols \"%s\" \"%s\" are undefined: absolute 0 assumed.",
+ name1, name2);
+ }
+ else
+ {
+ as_warn("Symbol \"%s\" undefined: absolute 0 assumed.",
+ name1 ? name1 : name2);
+ }
+ retval = expP->X_seg = SEG_ABSOLUTE;
+ expP->X_add_number = 0;
+ expP->X_add_symbol = expP->X_subtract_symbol = NULL;
+ }
#ifndef MANY_SEGMENTS
- know(retval == SEG_ABSOLUTE || retval == SEG_DATA || retval == SEG_TEXT || retval == SEG_BSS || retval == SEG_DIFFERENCE);
+ know(retval == SEG_ABSOLUTE || retval == SEG_DATA || retval == SEG_TEXT || retval == SEG_BSS || retval == SEG_DIFFERENCE);
#endif
- return (retval);
-
+ return (retval);
+
} /* get_known_segmented_expression() */
/* static */ long /* JF was static, but can't be if the MD pseudos are to use it */
- get_absolute_expression ()
+get_absolute_expression ()
{
- expressionS exp;
- register segT s;
-
- if ((s = expression(& exp)) != SEG_ABSOLUTE)
- {
- if (s != SEG_ABSENT)
- {
- as_bad("Bad Absolute Expression, absolute 0 assumed.");
- }
- exp . X_add_number = 0;
- }
- return (exp . X_add_number);
+ expressionS exp;
+ register segT s;
+
+ if ((s = expression(& exp)) != SEG_ABSOLUTE)
+ {
+ if (s != SEG_ABSENT)
+ {
+ as_bad("Bad Absolute Expression, absolute 0 assumed.");
+ }
+ exp . X_add_number = 0;
+ }
+ return (exp . X_add_number);
}
char /* return terminator */
- get_absolute_expression_and_terminator(val_pointer)
-long * val_pointer; /* return value of expression */
+get_absolute_expression_and_terminator(val_pointer)
+ long * val_pointer; /* return value of expression */
{
- * val_pointer = get_absolute_expression ();
- return (* input_line_pointer ++);
+ * val_pointer = get_absolute_expression ();
+ return (* input_line_pointer ++);
}
\f
/*
* Give a warning if that happens.
*/
char *
- demand_copy_C_string (len_pointer)
-int * len_pointer;
+demand_copy_C_string (len_pointer)
+ int * len_pointer;
{
- register char * s;
-
- if ((s = demand_copy_string(len_pointer)) != 0)
+ register char * s;
+
+ if ((s = demand_copy_string(len_pointer)) != 0)
+ {
+ register int len;
+
+ for (len = * len_pointer;
+ len > 0;
+ len--)
+ {
+ if (* s == 0)
{
- register int len;
-
- for (len = * len_pointer;
- len > 0;
- len--)
- {
- if (* s == 0)
- {
- s = 0;
- len = 1;
- * len_pointer = 0;
- as_bad("This string may not contain \'\\0\'");
- }
- }
+ s = 0;
+ len = 1;
+ * len_pointer = 0;
+ as_bad("This string may not contain \'\\0\'");
}
- return (s);
+ }
+ }
+ return (s);
}
\f
/*
* Do: Skip input_line_pointer over all whitespace.
*
* Out: 1 if input_line_pointer->end-of-line.
- */
+*/
int is_it_end_of_statement() {
- SKIP_WHITESPACE();
- return (is_end_of_line [* input_line_pointer]);
+ SKIP_WHITESPACE();
+ return (is_end_of_line [* input_line_pointer]);
} /* is_it_end_of_statement() */
void equals(sym_name)
char *sym_name;
{
- register symbolS *symbolP; /* symbol we are working with */
-
- input_line_pointer++;
- if (*input_line_pointer=='=')
- input_line_pointer++;
-
- while(*input_line_pointer==' ' || *input_line_pointer=='\t')
- input_line_pointer++;
-
- if (sym_name[0]=='.' && sym_name[1]=='\0') {
- /* Turn '. = mumble' into a .org mumble */
- register segT segment;
- expressionS exp;
- register char *p;
-
- segment = get_known_segmented_expression(& exp);
- if (! need_pass_2) {
- if (segment != now_seg && segment != SEG_ABSOLUTE)
- as_warn("Illegal segment \"%s\". Segment \"%s\" assumed.",
- segment_name(segment),
- segment_name(now_seg));
- p = frag_var(rs_org, 1, 1, (relax_substateT)0, exp.X_add_symbol,
- exp.X_add_number, (char *)0);
- * p = 0;
- } /* if (ok to make frag) */
- } else {
- symbolP=symbol_find_or_make(sym_name);
- pseudo_set(symbolP);
- }
+ register symbolS *symbolP; /* symbol we are working with */
+
+ input_line_pointer++;
+ if (*input_line_pointer=='=')
+ input_line_pointer++;
+
+ while(*input_line_pointer==' ' || *input_line_pointer=='\t')
+ input_line_pointer++;
+
+ if (sym_name[0]=='.' && sym_name[1]=='\0') {
+ /* Turn '. = mumble' into a .org mumble */
+ register segT segment;
+ expressionS exp;
+ register char *p;
+
+ segment = get_known_segmented_expression(& exp);
+ if (! need_pass_2) {
+ if (segment != now_seg && segment != SEG_ABSOLUTE)
+ as_warn("Illegal segment \"%s\". Segment \"%s\" assumed.",
+ segment_name(segment),
+ segment_name(now_seg));
+ p = frag_var(rs_org, 1, 1, (relax_substateT)0, exp.X_add_symbol,
+ exp.X_add_number, (char *)0);
+ * p = 0;
+ } /* if (ok to make frag) */
+ } else {
+ symbolP=symbol_find_or_make(sym_name);
+ pseudo_set(symbolP);
+ }
} /* equals() */
/* .include -- include a file at this point. */
void s_include(arg)
int arg;
{
- char *newbuf;
- char *filename;
- int i;
- FILE *try;
- char *path;
-
- filename = demand_copy_string(&i);
- demand_empty_rest_of_line();
- path = xmalloc(i + include_dir_maxlen + 5 /* slop */);
- for (i = 0; i < include_dir_count; i++) {
- strcpy(path, include_dirs[i]);
- strcat(path, "/");
- strcat(path, filename);
- if (0 != (try = fopen(path, "r")))
- {
- fclose (try);
- goto gotit;
- }
- }
- free(path);
- path = filename;
- gotit:
- /* malloc Storage leak when file is found on path. FIXME-SOMEDAY. */
- newbuf = input_scrub_include_file (path, input_line_pointer);
- buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+ char *newbuf;
+ char *filename;
+ int i;
+ FILE *try;
+ char *path;
+
+ filename = demand_copy_string(&i);
+ demand_empty_rest_of_line();
+ path = xmalloc(i + include_dir_maxlen + 5 /* slop */);
+ for (i = 0; i < include_dir_count; i++) {
+ strcpy(path, include_dirs[i]);
+ strcat(path, "/");
+ strcat(path, filename);
+ if (0 != (try = fopen(path, "r")))
+ {
+ fclose (try);
+ goto gotit;
+ }
+ }
+ free(path);
+ path = filename;
+gotit:
+ /* malloc Storage leak when file is found on path. FIXME-SOMEDAY. */
+ newbuf = input_scrub_include_file (path, input_line_pointer);
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
} /* s_include() */
void add_include_dir(path)
char *path;
{
- int i;
-
- if (include_dir_count == 0)
- {
- include_dirs = (char **)xmalloc (2 * sizeof (*include_dirs));
- include_dirs[0] = "."; /* Current dir */
- include_dir_count = 2;
- }
- else
- {
- include_dir_count++;
- include_dirs = (char **) realloc(include_dirs,
- include_dir_count*sizeof (*include_dirs));
- }
-
- include_dirs[include_dir_count-1] = path; /* New one */
-
- i = strlen (path);
- if (i > include_dir_maxlen)
- include_dir_maxlen = i;
+ int i;
+
+ if (include_dir_count == 0)
+ {
+ include_dirs = (char **)xmalloc (2 * sizeof (*include_dirs));
+ include_dirs[0] = "."; /* Current dir */
+ include_dir_count = 2;
+ }
+ else
+ {
+ include_dir_count++;
+ include_dirs = (char **) realloc(include_dirs,
+ include_dir_count*sizeof (*include_dirs));
+ }
+
+ include_dirs[include_dir_count-1] = path; /* New one */
+
+ i = strlen (path);
+ if (i > include_dir_maxlen)
+ include_dir_maxlen = i;
} /* add_include_dir() */
void s_ignore(arg)
int arg;
{
extern char is_end_of_line[];
-
+
while (!is_end_of_line[*input_line_pointer]) {
++input_line_pointer;
}
++input_line_pointer;
-
+
return;
} /* s_ignore() */
projects / external / binutils.git / commitdiff