6 /*======================================================================
10 *======================================================================*/
13 O_AA = 1, O_BD, O_BI, O_BO, O_crbD, O_crbA, O_crbB, O_CRM, O_d, O_frC, O_frD,
14 O_frS, O_IMM, O_LI, O_LK, O_MB, O_ME, O_NB, O_OE, O_rA, O_rB, O_Rc, O_rD,
15 O_rS, O_SH, O_SIMM, O_SR, O_TO, O_UIMM, O_crfD, O_crfS, O_L, O_spr, O_tbr,
19 enum OP_FIELD field; /* The operand identifier from the
22 char * name; /* Symbolic name of this operand */
24 unsigned int bits; /* The number of bits used by this
27 unsigned int shift; /* How far to the right the operand
28 should be shifted so that it is
29 aligned at the beginning of the
32 unsigned int hint; /* A bitwise-inclusive-OR of the
33 values shown below. These are used
34 tell the disassembler how to print
38 /* Values for operand hint */
39 #define OH_SILENT 0x01 /* dont print this operand */
40 #define OH_ADDR 0x02 /* this operand is an address */
41 #define OH_REG 0x04 /* this operand is a register */
42 #define OH_SPR 0x08 /* this operand is an SPR */
43 #define OH_TBR 0x10 /* this operand is a TBR */
44 #define OH_OFFSET 0x20 /* this operand is an offset */
45 #define OH_LITERAL 0x40 /* a literal string */
48 /*======================================================================
52 *======================================================================*/
54 /* From the MPCxxx instruction set documentation, all instructions are
55 * 32 bits long and word aligned. Bits 0-5 always specify the primary
56 * opcode. Many instructions also have an extended opcode.
59 #define GET_OPCD(i) (((unsigned long)(i) >> 26) & 0x3f)
60 #define MAKE_OPCODE(i) ((((unsigned long)(i)) & 0x3f) << 26)
62 /* The MPC860 User's Manual, Appendix D.4 contains the definitions of the
67 /*-------------------------------------------------
68 * I-Form Instructions:
70 *-------------------------------------------------
72 *-------------------------------------------------*/
74 #define I_OPCODE(i,aa,lk) (MAKE_OPCODE(i) | (((aa) & 0x1) << 1) | ((lk) & 0x1))
75 #define I_MASK I_OPCODE(0x3f,0x1,0x1)
78 /*-------------------------------------------------
79 * B-Form Instructions:
81 *-------------------------------------------------
82 * OPCD | BO | BI | BD |AA|LK
83 *-------------------------------------------------*/
85 #define B_OPCODE(i,aa,lk) (MAKE_OPCODE(i) | (((aa) & 0x1) << 1) | ((lk) & 0x1))
86 #define B_MASK B_OPCODE(0x3f,0x1,0x1)
89 /*-------------------------------------------------
90 * SC-Form Instructions:
92 *-------------------------------------------------
93 * OPCD | 00000 | 00000 | 00000000000000 |1|0
94 *-------------------------------------------------*/
96 #define SC_OPCODE(i) (MAKE_OPCODE(i) | 0x2)
97 #define SC_MASK SC_OPCODE(0x3f)
100 /*-------------------------------------------------
101 * D-Form Instructions:
102 * addi addic addic. addis andi. andis. cmpi cmpli
103 * lbz lbzu lha lhau lhz lhzu lmw lwz lwzu mulli
104 * ori oris stb stbu sth sthu stmw stw stwu subfic
106 *-------------------------------------------------
108 * OPCD | D | A | SIMM
110 * OPCD | S | A | UIMM
111 * OPCD |crfD|0|L| A | SIMM
112 * OPCD |crfD|0|L| A | UIMM
113 * OPCD | TO | A | SIMM
114 *-------------------------------------------------*/
116 #define D_OPCODE(i) MAKE_OPCODE(i)
117 #define D_MASK MAKE_OPCODE(0x3f)
120 /*-------------------------------------------------
121 * DS-Form Instructions:
122 * (none supported by MPC860)
123 *-------------------------------------------------
124 * OPCD | D | A | ds |XO
125 * OPCD | S | A | ds |XO
126 *-------------------------------------------------*/
128 #define DS_OPCODE(i,xo) (MAKE_OPCODE(i) | ((xo) & 0x3))
129 #define DS_MASK DS_OPCODE(0x3f,0x1)
132 /*---------------------------------------------------
133 * X-Form Instructions:
134 * andX andcX cmp cmpl cntlzwX dcbf dcbi dcbst dcbt
135 * dcbtst dcbz eciwx ecowx eieio eqvX extsbX extshX
136 * icbi lbzux lbxz lhaux lhax lhbrx lhzux lhxz lswi
137 * lswx lwarx lwbrx lwzux lwxz mcrfs mcrxr mfcr
138 * mfmsr mfsr mfsrin mtmsr mtsr mtsrin nandX norX
139 * orX orcX slwX srawX srawiX srwX stbux stbx
140 * sthbrx sthuxsthx stswi stswx stwbrx stwcx. stwux
141 * stwx sync tlbie tlbld tlbli tlbsync tw xorX
142 *---------------------------------------------------
143 * OPCD | D | A | B | XO |0
144 * OPCD | D | A | NB | XO |0
145 * OPCD | D | 00000 | B | XO |0
146 * OPCD | D | 00000 | 00000 | XO |0
147 * OPCD | D |0| SR | 00000 | XO |0
148 * OPCD | S | A | B | XO |Rc
149 * OPCD | S | A | B | XO |1
150 * OPCD | S | A | B | XO |0
151 * OPCD | S | A | NB | XO |0
152 * OPCD | S | A | 00000 | XO |Rc
153 * OPCD | S | 00000 | B | XO |0
154 * OPCD | S | 00000 | 00000 | XO |0
155 * OPCD | S |0| SR | 00000 | XO |0
156 * OPCD | S | A | SH | XO |Rc
157 * OPCD |crfD|0|L| A | SH | XO |0
158 * OPCD |crfD |00| A | B | XO |0
159 * OPCD |crfD |00|crfS |00| 00000 | XO |0
160 * OPCD |crfD |00| 00000 | 00000 | XO |0
161 * OPCD |crfD |00| 00000 | IMM |0| XO |Rc
162 * OPCD | TO | A | B | XO |0
163 * OPCD | D | 00000 | B | XO |Rc
164 * OPCD | D | 00000 | 00000 | XO |Rc
165 * OPCD | crbD | 00000 | 00000 | XO |Rc
166 * OPCD | 00000 | A | B | XO |0
167 * OPCD | 00000 | 00000 | B | XO |0
168 * OPCD | 00000 | 00000 | 00000 | XO |0
169 *---------------------------------------------------*/
171 #define X_OPCODE(i,xo,rc) (MAKE_OPCODE(i) | (((xo) & 0x3ff) << 1) | \
173 #define X_MASK X_OPCODE(0x3f,0x3ff,0x1)
176 /*---------------------------------------------------
177 * XL-Form Instructions:
178 * bcctrX bclrX crand crandc creqv crnand crnor cror
179 * croc crxorisync mcrf rfi
180 *---------------------------------------------------
181 * OPCD | BO | BI | 00000 | XO |LK
182 * OPCD | crbD | crbA | crbB | XO |0
183 * OPCD |crfD |00|crfS |00| 00000 | XO |0
184 * OPCD | 00000 | 00000 | 00000 | XO |0
185 *---------------------------------------------------*/
187 #define XL_OPCODE(i,xo,lk) (MAKE_OPCODE(i) | (((xo) & 0x3ff) << 1) | \
189 #define XL_MASK XL_OPCODE(0x3f,0x3ff,0x1)
192 /*---------------------------------------------------
193 * XFX-Form Instructions:
194 * mfspr mftb mtcrf mtspr
195 *---------------------------------------------------
196 * OPCD | D | spr | XO |0
197 * OPCD | D |0| CRM |0| XO |0
198 * OPCD | S | spr | XO |0
199 * OPCD | D | tbr | XO |0
200 *---------------------------------------------------*/
202 #define XFX_OPCODE(i,xo,rc) (MAKE_OPCODE(i) | (((xo) & 0x3ff) << 1) | \
204 #define XFX_MASK XFX_OPCODE(0x3f,0x3ff,0x1)
207 /*---------------------------------------------------
208 * XFL-Form Instructions:
209 * (none supported by MPC860)
210 *---------------------------------------------------
211 * OPCD |0| FM |0| B | XO |0
212 *---------------------------------------------------*/
214 #define XFL_OPCODE(i,xo,rc) (MAKE_OPCODE(i) | (((xo) & 0x3ff) << 1) | \
216 #define XFL_MASK XFL_OPCODE(0x3f,0x3ff,0x1)
219 /*---------------------------------------------------
220 * XS-Form Instructions:
221 * (none supported by MPC860)
222 *---------------------------------------------------
223 * OPCD | S | A | sh | XO |sh|LK
224 *---------------------------------------------------*/
226 #define XS_OPCODE(i,xo,rc) (MAKE_OPCODE(i) | (((xo) & 0x1ff) << 2) | \
228 #define XS_MASK XS_OPCODE(0x3f,0x1ff,0x1)
231 /*---------------------------------------------------
232 * XO-Form Instructions:
233 * addX addcXaddeX addmeX addzeX divwX divwuX mulhwX
234 * mulhwuX mullwX negX subfX subfcX subfeX subfmeX
236 *---------------------------------------------------
237 * OPCD | D | A | B |OE| XO |Rc
238 * OPCD | D | A | B |0 | XO |Rc
239 * OPCD | D | A | 00000 |OE| XO |Rc
240 *---------------------------------------------------*/
242 #define XO_OPCODE(i,xo,oe,rc) (MAKE_OPCODE(i) | (((oe) & 0x1) << 10) | \
243 (((xo) & 0x1ff) << 1) | ((rc) & 0x1))
244 #define XO_MASK XO_OPCODE(0x3f,0x1ff,0x1,0x1)
247 /*---------------------------------------------------
248 * A-Form Instructions:
249 * (none supported by MPC860)
250 *---------------------------------------------------
251 * OPCD | D | A | B |00000| XO |Rc
252 * OPCD | D | A | B | C | XO |Rc
253 * OPCD | D | A | 00000 | C | XO |Rc
254 * OPCD | D | 00000 | B |00000| XO |Rc
255 *---------------------------------------------------*/
257 #define A_OPCODE(i,xo,rc) (MAKE_OPCODE(i) | (((xo) & 0x1f) << 1) | \
259 #define A_MASK A_OPCODE(0x3f,0x1f,0x1)
262 /*---------------------------------------------------
263 * M-Form Instructions:
264 * rlwimiX rlwinmX rlwnmX
265 *---------------------------------------------------
266 * OPCD | S | A | SH | MB | ME |Rc
267 * OPCD | S | A | B | MB | ME |Rc
268 *---------------------------------------------------*/
270 #define M_OPCODE(i,rc) (MAKE_OPCODE(i) | ((rc) & 0x1))
271 #define M_MASK M_OPCODE(0x3f,0x1)
274 /*---------------------------------------------------
275 * MD-Form Instructions:
276 * (none supported by MPC860)
277 *---------------------------------------------------
278 * OPCD | S | A | sh | mb | XO |sh|Rc
279 * OPCD | S | A | sh | me | XO |sh|Rc
280 *---------------------------------------------------*/
282 #define MD_OPCODE(i,xo,rc) (MAKE_OPCODE(i) | (((xo) & 0x7) << 2) | \
284 #define MD_MASK MD_OPCODE(0x3f,0x7,0x1)
287 /*---------------------------------------------------
288 * MDS-Form Instructions:
289 * (none supported by MPC860)
290 *---------------------------------------------------
291 * OPCD | S | A | B | mb | XO |Rc
292 * OPCD | S | A | B | me | XO |Rc
293 *---------------------------------------------------*/
295 #define MDS_OPCODE(i,xo,rc) (MAKE_OPCODE(i) | (((xo) & 0xf) << 1) | \
297 #define MDS_MASK MDS_OPCODE(0x3f,0xf,0x1)
299 #define INSTRUCTION( memaddr ) ntohl(*(unsigned long *)(memaddr))
301 #define MAX_OPERANDS 8
306 unsigned long opcode; /* The complete opcode as produced by
307 one of the XXX_OPCODE macros above */
309 unsigned long mask; /* The mask to use on an instruction
310 before comparing with the opcode
311 field to see if it matches */
313 enum OP_FIELD fields[MAX_OPERANDS];
314 /* An array defining the operands for
315 this opcode. The values of the
316 array are the operand identifiers */
318 int (*hfunc)(struct ppc_ctx *);
319 /* Address of a function to handle the given
322 char * name; /* The symbolic name of this opcode */
324 unsigned int hint; /* A bitwise-inclusive-OR of the
325 values shown below. These are used
326 tell the disassembler how to print
327 some operands for this opcode */
330 /* values for opcode hints */
331 #define H_RELATIVE 0x1 /* The address operand is relative */
332 #define H_IMM_HIGH 0x2 /* [U|S]IMM field shifted high */
333 #define H_RA0_IS_0 0x4 /* If rA = 0 then treat as literal 0 */
342 unsigned char * virtual;
346 /*======================================================================
350 *======================================================================*/
352 /* Values for flags as passed to various ppc routines */
353 #define F_RADOCTAL 0x1 /* output radix = unsigned octal */
354 #define F_RADUDECIMAL 0x2 /* output radix = unsigned decimal */
355 #define F_RADSDECIMAL 0x4 /* output radix = signed decimal */
356 #define F_RADHEX 0x8 /* output radix = unsigned hex */
357 #define F_SIMPLE 0x10 /* use simplified mnemonics */
358 #define F_SYMBOL 0x20 /* use symbol lookups for addresses */
359 #define F_INSTR 0x40 /* output the raw instruction */
360 #define F_LOCALMEM 0x80 /* retrieve opcodes from local memory
361 rather than from the HMI */
362 #define F_LINENO 0x100 /* show line number info if available */
363 #define F_VALIDONLY 0x200 /* cache: valid entries only */
365 /* Values for assembler error codes */
366 #define E_ASM_BAD_OPCODE 1
367 #define E_ASM_NUM_OPERANDS 2
368 #define E_ASM_BAD_REGISTER 3
369 #define E_ASM_BAD_SPR 4
370 #define E_ASM_BAD_TBR 5
372 extern int disppc __P((unsigned char *,unsigned char *,int,
373 int (*)(const char *), unsigned long));
374 extern int print_source_line __P((char *,char *,int,
375 int (*pfunc)(const char *)));
376 extern int find_next_address __P((unsigned char *,int,struct pt_regs *));
377 extern int handle_bc __P((struct ppc_ctx *));
378 extern unsigned long asmppc __P((unsigned long,char*,int*));
379 extern char *asm_error_str __P((int));
381 /*======================================================================
385 *======================================================================*/
387 extern struct operand operands[];
388 extern const unsigned int n_operands;
389 extern struct opcode opcodes[];
390 extern const unsigned int n_opcodes;
396 * Copyright (c) 2000 William L. Pitts and W. Gerald Hicks
397 * All rights reserved.
399 * Redistribution and use in source and binary forms are freely
400 * permitted provided that the above copyright notice and this
401 * paragraph and the following disclaimer are duplicated in all
404 * This software is provided "AS IS" and without any express or
405 * implied warranties, including, without limitation, the implied
406 * warranties of merchantability and fitness for a particular