/* SEG gives the seg_entries of this insn. They are zero unless
explicit segment overrides are given. */
- const seg_entry *seg[2]; /* segments for memory operands (if given) */
+ const seg_entry *seg[2];
/* PREFIX holds all the given prefix opcodes (usually null).
PREFIXES is the number of prefix opcodes. */
#endif
/* This array holds the chars that always start a comment. If the
- pre-processor is disabled, these aren't very useful */
+ pre-processor is disabled, these aren't very useful. */
#if defined (TE_I386AIX) || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && ! defined (TE_LINUX) && !defined(TE_FreeBSD))
/* Putting '/' here makes it impossible to use the divide operator.
However, we need it for compatibility with SVR4 systems. */
/* This array holds the chars that only start a comment at the beginning of
a line. If the line seems to have the form '# 123 filename'
- .line and .file directives will appear in the pre-processed output */
-/* Note that input_file.c hand checks for '#' at the beginning of the
+ .line and .file directives will appear in the pre-processed output.
+ Note that input_file.c hand checks for '#' at the beginning of the
first line of the input file. This is because the compiler outputs
- #NO_APP at the beginning of its output. */
-/* Also note that comments started like this one will always work if
+ #NO_APP at the beginning of its output.
+ Also note that comments started like this one will always work if
'/' isn't otherwise defined. */
#if defined (TE_I386AIX) || ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && ! defined (TE_LINUX) && !defined(TE_FreeBSD))
const char line_comment_chars[] = "";
const char line_separator_chars[] = ";";
-/* Chars that can be used to separate mant from exp in floating point nums */
+/* Chars that can be used to separate mant from exp in floating point
+ nums. */
const char EXP_CHARS[] = "eE";
-/* Chars that mean this number is a floating point constant */
-/* As in 0f12.456 */
-/* or 0d1.2345e12 */
+/* Chars that mean this number is a floating point constant
+ As in 0f12.456
+ or 0d1.2345e12. */
const char FLT_CHARS[] = "fFdDxX";
-/* tables for lexical analysis */
+/* Tables for lexical analysis. */
static char mnemonic_chars[256];
static char register_chars[256];
static char operand_chars[256];
static char identifier_chars[256];
static char digit_chars[256];
-/* lexical macros */
+/* Lexical macros. */
#define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x])
#define is_operand_char(x) (operand_chars[(unsigned char) x])
#define is_register_char(x) (register_chars[(unsigned char) x])
#define is_identifier_char(x) (identifier_chars[(unsigned char) x])
#define is_digit_char(x) (digit_chars[(unsigned char) x])
-/* put here all non-digit non-letter charcters that may occur in an operand */
+/* All non-digit non-letter charcters that may occur in an operand. */
static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]";
/* md_assemble() always leaves the strings it's passed unaltered. To
with '\0's (indicating end of strings for various sub-fields of the
assembler instruction). */
static char save_stack[32];
-static char *save_stack_p; /* stack pointer */
+static char *save_stack_p;
#define END_STRING_AND_SAVE(s) \
do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0)
#define RESTORE_END_STRING(s) \
sort of jump to choose to reach a given label. */
/* Types. */
-#define COND_JUMP 1 /* Conditional jump. */
-#define UNCOND_JUMP 2 /* Unconditional jump. */
+#define COND_JUMP 1
+#define UNCOND_JUMP 2
/* Sizes. */
#define CODE16 1
#define SMALL 0
1) most positive reach of this state,
2) most negative reach of this state,
3) how many bytes this mode will add to the size of the current frag
- 4) which index into the table to try if we can't fit into this one.
- */
+ 4) which index into the table to try if we can't fit into this one. */
{1, 1, 0, 0},
{1, 1, 0, 0},
{1, 1, 0, 0},
fragS *fragP;
int count;
{
- /* Various efficient no-op patterns for aligning code labels. */
- /* Note: Don't try to assemble the instructions in the comments. */
- /* 0L and 0w are not legal */
+ /* Various efficient no-op patterns for aligning code labels.
+ Note: Don't try to assemble the instructions in the comments.
+ 0L and 0w are not legal. */
static const char f32_1[] =
{0x90}; /* nop */
static const char f32_2[] =
static void s_bss PARAMS ((int));
#endif
-symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
+symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */
static INLINE unsigned int
mode_from_disp_size (t)
\f
#ifdef DEBUG386
-/* debugging routines for md_assemble */
+/* Debugging routines for md_assemble. */
static void pi PARAMS ((char *, i386_insn *));
static void pte PARAMS ((template *));
static void pt PARAMS ((unsigned int));
return 1;
return 0;
#else
- /* For COFF */
+ /* For COFF. */
return fixp->fx_r_type == 7;
#endif
}
|| S_IS_WEAK (fixP->fx_addsy))
return 0;
#endif
- /* adjust_reloc_syms doesn't know about the GOT */
+ /* adjust_reloc_syms doesn't know about the GOT. */
if (fixP->fx_r_type == BFD_RELOC_386_GOTOFF
|| fixP->fx_r_type == BFD_RELOC_386_PLT32
|| fixP->fx_r_type == BFD_RELOC_386_GOT32
i.disp_reloc[j] = NO_RELOC;
memset (disp_expressions, '\0', sizeof (disp_expressions));
memset (im_expressions, '\0', sizeof (im_expressions));
- save_stack_p = save_stack; /* reset stack pointer */
+ save_stack_p = save_stack;
/* First parse an instruction mnemonic & call i386_operand for the operands.
We assume that the scrubber has arranged it so that line[0] is the valid
current_templates = hash_find (op_hash, mnemonic);
break;
- /* Intel Syntax */
+ /* Intel Syntax. */
case DWORD_MNEM_SUFFIX:
if (intel_syntax)
{
}
}
- /* check for rep/repne without a string instruction */
+ /* Check for rep/repne without a string instruction. */
if (expecting_string_instruction
&& !(current_templates->start->opcode_modifier & IsString))
{
/* There may be operands to parse. */
if (*l != END_OF_INSN)
{
- /* parse operands */
-
/* 1 if operand is pending after ','. */
unsigned int expecting_operand = 0;
do
{
- /* skip optional white space before operand */
+ /* Skip optional white space before operand. */
if (is_space_char (*l))
++l;
if (!is_operand_char (*l) && *l != END_OF_INSN)
else
operand_ok = i386_operand (token_start);
- RESTORE_END_STRING (l); /* restore old contents */
+ RESTORE_END_STRING (l);
if (!operand_ok)
return;
}
}
}
- /* now *l must be either ',' or END_OF_INSN */
+ /* Now *l must be either ',' or END_OF_INSN. */
if (*l == ',')
{
if (*++l == END_OF_INSN)
- { /* just skip it, if it's \n complain */
+ {
+ /* Just skip it, if it's \n complain. */
goto expecting_operand_after_comma;
}
expecting_operand = 1;
}
}
- while (*l != END_OF_INSN); /* until we get end of insn */
+ while (*l != END_OF_INSN);
}
}
&& (t->opcode_modifier & IgnoreSize))
&& !(intel_syntax
&& t->base_opcode == 0xd9
- && (t->extension_opcode == 5 /* 0xd9,5 "fldcw" */
- || t->extension_opcode == 7))) /* 0xd9,7 "f{n}stcw" */
+ && (t->extension_opcode == 5 /* 0xd9,5 "fldcw" */
+ || t->extension_opcode == 7))) /* 0xd9,7 "f{n}stcw" */
continue;
else if (!t->operands)
continue;
}
/* Found either forward/reverse 2 or 3 operand match here:
- slip through to break */
+ slip through to break. */
}
/* We've found a match; break out of loop. */
break;
- } /* for (t = ... */
+ }
if (t == current_templates->end)
{
/* We found no match. */
if (! add_prefix (FWAIT_OPCODE))
return;
- /* Check string instruction segment overrides */
+ /* Check string instruction segment overrides. */
if ((i.tm.opcode_modifier & IsString) != 0 && i.mem_operands != 0)
{
int mem_op = (i.types[0] & AnyMem) ? 0 : 1;
#endif
continue;
}
- /* Any other register is bad */
+ /* Any other register is bad. */
if (i.types[op] & (Reg | RegMMX | RegXMM
| SReg2 | SReg3
| Control | Debug | Test
if (overlap0 & ImplicitRegister)
i.reg_operands--;
if (overlap0 & Imm1)
- i.imm_operands = 0; /* kludge for shift insns */
+ i.imm_operands = 0; /* kludge for shift insns. */
i.types[1] = overlap1;
if (overlap1 & ImplicitRegister)
return;
}
- /* For movzx and movsx, need to check the register type */
+ /* For movzx and movsx, need to check the register type. */
if (intel_syntax
&& (i.tm.base_opcode == 0xfb6 || i.tm.base_opcode == 0xfbe))
if (i.suffix && i.suffix == BYTE_MNEM_SUFFIX)
}
}
}
- } /* End displacement output. */
+ }
/* Output immediate. */
if (i.imm_operands)
md_number_to_chars (p, val, size);
}
else
- { /* Not absolute_section. */
- /* Need a 32-bit fixup (don't support 8bit
+ {
+ /* Not absolute_section.
+ Need a 32-bit fixup (don't support 8bit
non-absolute imms). Try to support other
sizes ... */
#ifdef BFD_ASSEMBLER
}
}
}
- } /* end immediate output */
+ }
}
#ifdef DEBUG386
{
++op_string;
- /* Pick off each component and figure out where it belongs */
+ /* Pick off each component and figure out where it belongs. */
end_of_operand_string = op_string;
case SHORT:
case NONE_FOUND:
- /* Should be register or immediate */
+ /* Should be register or immediate. */
if (is_digit_char (*op_string)
&& strchr (op_string, '[') == 0)
{
return 0;
break;
- } /* end switch */
+ }
return 1;
}
return 0;
}
else if (*op_string == IMMEDIATE_PREFIX)
- { /* ... or an immediate */
+ {
++op_string;
if (i.types[this_operand] & JumpAbsolute)
{
i.mem_operands++;
}
else
- { /* It's not a memory operand; argh! */
+ {
+ /* It's not a memory operand; argh! */
as_bad (_("invalid char %s beginning operand %d `%s'"),
output_invalid (*op_string),
this_operand + 1,
{
case JUMP_PC_RELATIVE:
/* Make jmp (0xeb) a dword displacement jump. */
- /* dword disp jmp */
opcode[0] = 0xe9;
fragP->fr_fix += size;
fix_new (fragP, old_fr_fix, size,
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