diff options
Diffstat (limited to 'opcodes/i386-dis.c')
| -rw-r--r-- | opcodes/i386-dis.c | 244 |
1 files changed, 123 insertions, 121 deletions
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 65c36f15f3d..f185b2858c4 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -1,7 +1,6 @@ /* Print i386 instructions for GDB, the GNU debugger. Copyright 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2001 - Free Software Foundation, Inc. + 2001, 2002, 2003 Free Software Foundation, Inc. This file is part of GDB. @@ -176,9 +175,9 @@ fetch_data (info, addr) if (status != 0) { /* If we did manage to read at least one byte, then - print_insn_i386 will do something sensible. Otherwise, print - an error. We do that here because this is where we know - STATUS. */ + print_insn_i386 will do something sensible. Otherwise, print + an error. We do that here because this is where we know + STATUS. */ if (priv->max_fetched == priv->the_buffer) (*info->memory_error_func) (status, start, info); longjmp (priv->bailout, 1); @@ -193,6 +192,7 @@ fetch_data (info, addr) #define Eb OP_E, b_mode #define Ev OP_E, v_mode #define Ed OP_E, d_mode +#define Edq OP_E, dq_mode #define indirEb OP_indirE, b_mode #define indirEv OP_indirE, v_mode #define Ew OP_E, w_mode @@ -312,6 +312,7 @@ fetch_data (info, addr) #define m_mode 7 /* d_mode in 32bit, q_mode in 64bit mode. */ #define cond_jump_mode 8 #define loop_jcxz_mode 9 +#define dq_mode 10 /* operand size depends on REX prefixes. */ #define es_reg 100 #define cs_reg 101 @@ -878,7 +879,7 @@ static const struct dis386 dis386_twobyte[] = { { "packssdw", MX, EM, XX }, { PREGRP26 }, { PREGRP24 }, - { "movd", MX, Ed, XX }, + { "movd", MX, Edq, XX }, { PREGRP19 }, /* 70 */ { PREGRP22 }, @@ -1611,9 +1612,9 @@ static const struct dis386 prefix_user_table[][4] = { }, /* PREGRP23 */ { - { "movd", Ed, MX, XX }, + { "movd", Edq, MX, XX }, { "movq", XM, EX, XX }, - { "movd", Ed, XM, XX }, + { "movd", Edq, XM, XX }, { "(bad)", Ed, XM, XX }, }, /* PREGRP24 */ @@ -1808,9 +1809,9 @@ prefix_name (pref, sizeflag) return (sizeflag & DFLAG) ? "data16" : "data32"; case 0x67: if (mode_64bit) - return (sizeflag & AFLAG) ? "addr32" : "addr64"; + return (sizeflag & AFLAG) ? "addr32" : "addr64"; else - return ((sizeflag & AFLAG) && !mode_64bit) ? "addr16" : "addr32"; + return ((sizeflag & AFLAG) && !mode_64bit) ? "addr16" : "addr32"; case FWAIT_OPCODE: return "fwait"; default: @@ -2040,7 +2041,7 @@ print_insn (pc, info) const char *name; /* fwait not followed by floating point instruction. Print the - first prefix, which is probably fwait itself. */ + first prefix, which is probably fwait itself. */ name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag); if (name == NULL) name = INTERNAL_DISASSEMBLER_ERROR; @@ -2273,7 +2274,7 @@ static const char *float_mem[] = { "fsubr{s||s|}", "fdiv{s||s|}", "fdivr{s||s|}", - /* d9 */ + /* d9 */ "fld{s||s|}", "(bad)", "fst{s||s|}", @@ -2518,11 +2519,11 @@ dofloat (sizeflag) putop (float_mem[(floatop - 0xd8) * 8 + reg], sizeflag); obufp = op1out; if (floatop == 0xdb) - OP_E (x_mode, sizeflag); + OP_E (x_mode, sizeflag); else if (floatop == 0xdd) - OP_E (d_mode, sizeflag); + OP_E (d_mode, sizeflag); else - OP_E (v_mode, sizeflag); + OP_E (v_mode, sizeflag); return; } /* Skip mod/rm byte. */ @@ -2617,14 +2618,14 @@ putop (template, sizeflag) case '}': break; case 'A': - if (intel_syntax) - break; + if (intel_syntax) + break; if (mod != 3 || (sizeflag & SUFFIX_ALWAYS)) *obufp++ = 'b'; break; case 'B': - if (intel_syntax) - break; + if (intel_syntax) + break; if (sizeflag & SUFFIX_ALWAYS) *obufp++ = 'b'; break; @@ -2642,8 +2643,8 @@ putop (template, sizeflag) used_prefixes |= (prefixes & PREFIX_ADDR); break; case 'F': - if (intel_syntax) - break; + if (intel_syntax) + break; if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS)) { if (sizeflag & AFLAG) @@ -2654,8 +2655,8 @@ putop (template, sizeflag) } break; case 'H': - if (intel_syntax) - break; + if (intel_syntax) + break; if ((prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_CS || (prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_DS) { @@ -2669,8 +2670,8 @@ putop (template, sizeflag) } break; case 'L': - if (intel_syntax) - break; + if (intel_syntax) + break; if (sizeflag & SUFFIX_ALWAYS) *obufp++ = 'l'; break; @@ -2688,8 +2689,8 @@ putop (template, sizeflag) *obufp++ = 'd'; break; case 'T': - if (intel_syntax) - break; + if (intel_syntax) + break; if (mode_64bit) { *obufp++ = 'q'; @@ -2697,8 +2698,8 @@ putop (template, sizeflag) } /* Fall through. */ case 'P': - if (intel_syntax) - break; + if (intel_syntax) + break; if ((prefixes & PREFIX_DATA) || (rex & REX_MODE64) || (sizeflag & SUFFIX_ALWAYS)) @@ -2717,8 +2718,8 @@ putop (template, sizeflag) } break; case 'U': - if (intel_syntax) - break; + if (intel_syntax) + break; if (mode_64bit) { *obufp++ = 'q'; @@ -2726,8 +2727,8 @@ putop (template, sizeflag) } /* Fall through. */ case 'Q': - if (intel_syntax) - break; + if (intel_syntax) + break; USED_REX (REX_MODE64); if (mod != 3 || (sizeflag & SUFFIX_ALWAYS)) { @@ -2745,7 +2746,7 @@ putop (template, sizeflag) break; case 'R': USED_REX (REX_MODE64); - if (intel_syntax) + if (intel_syntax) { if (rex & REX_MODE64) { @@ -2776,8 +2777,8 @@ putop (template, sizeflag) used_prefixes |= (prefixes & PREFIX_DATA); break; case 'S': - if (intel_syntax) - break; + if (intel_syntax) + break; if (sizeflag & SUFFIX_ALWAYS) { if (rex & REX_MODE64) @@ -2797,11 +2798,11 @@ putop (template, sizeflag) *obufp++ = 'd'; else *obufp++ = 's'; - used_prefixes |= (prefixes & PREFIX_DATA); + used_prefixes |= (prefixes & PREFIX_DATA); break; case 'Y': - if (intel_syntax) - break; + if (intel_syntax) + break; if (rex & REX_MODE64) { USED_REX (REX_MODE64); @@ -2818,7 +2819,7 @@ putop (template, sizeflag) *obufp++ = 'w'; else *obufp++ = 'b'; - if (intel_syntax) + if (intel_syntax) { if (rex) { @@ -3000,10 +3001,11 @@ OP_E (bytemode, sizeflag) oappend (names32[rm + add]); break; case v_mode: + case dq_mode: USED_REX (REX_MODE64); if (rex & REX_MODE64) oappend (names64[rm + add]); - else if (sizeflag & DFLAG) + else if ((sizeflag & DFLAG) || bytemode == dq_mode) oappend (names32[rm + add]); else oappend (names16[rm + add]); @@ -3076,52 +3078,52 @@ OP_E (bytemode, sizeflag) } if (!intel_syntax) - if (mod != 0 || (base & 7) == 5) - { + if (mod != 0 || (base & 7) == 5) + { print_operand_value (scratchbuf, !riprel, disp); - oappend (scratchbuf); + oappend (scratchbuf); if (riprel) { set_op (disp, 1); oappend ("(%rip)"); } - } + } if (havebase || (havesib && (index != 4 || scale != 0))) { - if (intel_syntax) - { - switch (bytemode) - { - case b_mode: - oappend ("BYTE PTR "); - break; - case w_mode: - oappend ("WORD PTR "); - break; - case v_mode: - oappend ("DWORD PTR "); - break; - case d_mode: - oappend ("QWORD PTR "); - break; - case m_mode: + if (intel_syntax) + { + switch (bytemode) + { + case b_mode: + oappend ("BYTE PTR "); + break; + case w_mode: + oappend ("WORD PTR "); + break; + case v_mode: + oappend ("DWORD PTR "); + break; + case d_mode: + oappend ("QWORD PTR "); + break; + case m_mode: if (mode_64bit) oappend ("DWORD PTR "); else oappend ("QWORD PTR "); break; - case x_mode: - oappend ("XWORD PTR "); - break; - default: - break; - } - } + case x_mode: + oappend ("XWORD PTR "); + break; + default: + break; + } + } *obufp++ = open_char; if (intel_syntax && riprel) oappend ("rip + "); - *obufp = '\0'; + *obufp = '\0'; USED_REX (REX_EXTZ); if (!havesib && (rex & REX_EXTZ)) base += 8; @@ -3132,41 +3134,41 @@ OP_E (bytemode, sizeflag) { if (index != 4) { - if (intel_syntax) - { - if (havebase) - { - *obufp++ = separator_char; - *obufp = '\0'; - } - sprintf (scratchbuf, "%s", + if (intel_syntax) + { + if (havebase) + { + *obufp++ = separator_char; + *obufp = '\0'; + } + sprintf (scratchbuf, "%s", mode_64bit && (sizeflag & AFLAG) ? names64[index] : names32[index]); - } - else + } + else sprintf (scratchbuf, ",%s", mode_64bit && (sizeflag & AFLAG) ? names64[index] : names32[index]); oappend (scratchbuf); } - if (!intel_syntax - || (intel_syntax - && bytemode != b_mode - && bytemode != w_mode - && bytemode != v_mode)) - { - *obufp++ = scale_char; - *obufp = '\0'; - sprintf (scratchbuf, "%d", 1 << scale); - oappend (scratchbuf); - } + if (!intel_syntax + || (intel_syntax + && bytemode != b_mode + && bytemode != w_mode + && bytemode != v_mode)) + { + *obufp++ = scale_char; + *obufp = '\0'; + sprintf (scratchbuf, "%d", 1 << scale); + oappend (scratchbuf); + } } - if (intel_syntax) - if (mod != 0 || (base & 7) == 5) - { + if (intel_syntax) + if (mod != 0 || (base & 7) == 5) + { /* Don't print zero displacements. */ - if (disp != 0) - { + if (disp != 0) + { if ((bfd_signed_vma) disp > 0) { *obufp++ = '+'; @@ -3174,17 +3176,17 @@ OP_E (bytemode, sizeflag) } print_operand_value (scratchbuf, 0, disp); - oappend (scratchbuf); - } - } + oappend (scratchbuf); + } + } *obufp++ = close_char; - *obufp = '\0'; + *obufp = '\0'; } else if (intel_syntax) - { - if (mod != 0 || (base & 7) == 5) - { + { + if (mod != 0 || (base & 7) == 5) + { if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS | PREFIX_ES | PREFIX_FS | PREFIX_GS)) ; @@ -3194,9 +3196,9 @@ OP_E (bytemode, sizeflag) oappend (":"); } print_operand_value (scratchbuf, 1, disp); - oappend (scratchbuf); - } - } + oappend (scratchbuf); + } + } } else { /* 16 bit address mode */ @@ -3224,19 +3226,19 @@ OP_E (bytemode, sizeflag) } if (!intel_syntax) - if (mod != 0 || (rm & 7) == 6) - { + if (mod != 0 || (rm & 7) == 6) + { print_operand_value (scratchbuf, 0, disp); - oappend (scratchbuf); - } + oappend (scratchbuf); + } if (mod != 0 || (rm & 7) != 6) { *obufp++ = open_char; - *obufp = '\0'; + *obufp = '\0'; oappend (index16[rm + add]); - *obufp++ = close_char; - *obufp = '\0'; + *obufp++ = close_char; + *obufp = '\0'; } } } @@ -3383,9 +3385,9 @@ OP_REG (code, sizeflag) { case indir_dx_reg: if (intel_syntax) - s = "[dx]"; + s = "[dx]"; else - s = "(%dx)"; + s = "(%dx)"; break; case ax_reg: case cx_reg: case dx_reg: case bx_reg: case sp_reg: case bp_reg: case si_reg: case di_reg: @@ -3441,9 +3443,9 @@ OP_IMREG (code, sizeflag) { case indir_dx_reg: if (intel_syntax) - s = "[dx]"; + s = "[dx]"; else - s = "(%dx)"; + s = "(%dx)"; break; case ax_reg: case cx_reg: case dx_reg: case bx_reg: case sp_reg: case bp_reg: case si_reg: case di_reg: @@ -3725,7 +3727,7 @@ OP_OFF (bytemode, sizeflag) if (intel_syntax) { if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS - | PREFIX_ES | PREFIX_FS | PREFIX_GS))) + | PREFIX_ES | PREFIX_FS | PREFIX_GS))) { oappend (names_seg[ds_reg - es_reg]); oappend (":"); @@ -3755,7 +3757,7 @@ OP_OFF64 (bytemode, sizeflag) if (intel_syntax) { if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS - | PREFIX_ES | PREFIX_FS | PREFIX_GS))) + | PREFIX_ES | PREFIX_FS | PREFIX_GS))) { oappend (names_seg[ds_reg - es_reg]); oappend (":"); @@ -3780,9 +3782,9 @@ ptr_reg (code, sizeflag) if (rex & REX_MODE64) { if (!(sizeflag & AFLAG)) - s = names32[code - eAX_reg]; + s = names32[code - eAX_reg]; else - s = names64[code - eAX_reg]; + s = names64[code - eAX_reg]; } else if (sizeflag & AFLAG) s = names32[code - eAX_reg]; |