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disasm.cpp
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disasm.cpp
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#include "table.h"
#include "tok.h"
#include <stdarg.h>
#define _DISASM_
/* Percent tokens in strings:
First char after '%':
A - direct address
C - reg of r/m picks control register
D - reg of r/m picks debug register
E - r/m picks operand
F - second operand for mmx instruction reg/mem
G - reg of r/m picks general register
I - immediate data
J - relative IP offset
+ K - call/jmp distance
L - first operand for mmx instruction
M - r/m picks memory
O - no r/m, offset only
R - mod of r/m picks register only
S - reg of r/m picks segment register
T - reg of r/m picks test register
X - DS:ESI
Y - ES:EDI
2 - prefix of two-byte opcode
+ e - put in 'e' if use32 (second char is part of reg name)
+ put in 'w' for use16 or 'd' for use32 (second char is 'w')
+ j - put in 'e' in jcxz if prefix==0x66
f - floating point (second char is esc value)
g - do r/m group 'n', n==0..7
p - prefix
s - size override (second char is a,o)
+ d - put d if double arg, nothing otherwise (pushfd, popfd &c)
+ w - put w if word, d if double arg, nothing otherwise (lodsw/lodsd)
+ P - simple prefix
Second char after '%':
a - two words in memory (BOUND)
b - byte
c - byte or word
d - dword
+ f - far call/jmp
+ n - near call/jmp
p - 32 or 48 bit pointer
+ q - byte/word thingy
s - six byte pseudo-descriptor
v - word or dword
w - word
+ x - sign extended byte
y - qword
F - use floating regs in mod/rm
M - use MMX regs
1-8 - group number, esc value, etc
m - no size memory operand
*/
/* watch out for aad && aam with odd operands */
char *opmap1[256] = {
/* 0 */
"add %Eb,%Rb", "add %Ev,%Rv", "add %Rb,%Eb", "add %Rv,%Ev", "add al,%Ib",
"add %eax,%Iv", "push es", "pop es", "or %Eb,%Rb", "or %Ev,%Rv",
"or %Rb,%Eb", "or %Rv,%Ev", "or al,%Ib", "or %eax,%Iv", "push cs", "%2 ",
/* 1 */
"adc %Eb,%Rb", "adc %Ev,%Rv", "adc %Rb,%Eb", "adc %Rv,%Ev", "adc al,%Ib",
"adc %eax,%Iv", "push ss", "pop ss", "sbb %Eb,%Rb", "sbb %Ev,%Rv",
"sbb %Rb,%Eb", "sbb %Rv,%Ev", "sbb al,%Ib", "sbb %eax,%Iv", "push ds",
"pop ds",
/* 2 */
"and %Eb,%Rb", "and %Ev,%Rv", "and %Rb,%Eb", "and %Rv,%Ev", "and al,%Ib",
"and %eax,%Iv", "%pe", "daa", "sub %Eb,%Rb", "sub %Ev,%Rv", "sub %Rb,%Eb",
"sub %Rv,%Ev", "sub al,%Ib", "sub %eax,%Iv", "%pc", "das",
/* 3 */
"xor %Eb,%Rb", "xor %Ev,%Rv", "xor %Rb,%Eb", "xor %Rv,%Ev", "xor al,%Ib",
"xor %eax,%Iv", "%ps", "aaa", "cmp %Eb,%Rb", "cmp %Ev,%Rv", "cmp %Rb,%Eb",
"cmp %Rv,%Ev", "cmp al,%Ib", "cmp %eax,%Iv", "%pd", "aas",
/* 4 */
"inc %eax", "inc %ecx", "inc %edx", "inc %ebx", "inc %esp", "inc %ebp",
"inc %esi", "inc %edi", "dec %eax", "dec %ecx", "dec %edx", "dec %ebx",
"dec %esp", "dec %ebp", "dec %esi", "dec %edi",
/* 5 */
"push %eax", "push %ecx", "push %edx", "push %ebx", "push %esp",
"push %ebp", "push %esi", "push %edi", "pop %eax", "pop %ecx", "pop %edx",
"pop %ebx", "pop %esp", "pop %ebp", "pop %esi", "pop %edi",
/* 6 */
"pusha%d ", "popa%d ", "bound %Rv,%Ma", "arpl %Ew,%Rw", "%pf", "%pg", "%so",
"%sa", "push %Iv", "imul %Rv,%Ev,%Iv", "push %Ix", "imul %Rv,%Ev,%Ib",
"insb", "ins%ew", "outsb", "outs%ew",
/* 7 */
"jo %Jb", "jno %Jb", "jc %Jb", "jnc %Jb", "je %Jb", "jne %Jb", "jbe %Jb",
"ja %Jb", "js %Jb", "jns %Jb", "jpe %Jb", "jpo %Jb", "jl %Jb", "jge %Jb",
"jle %Jb", "jg %Jb",
/* 8 */
/* "%g0 %Eb,%Ib", "%g0 %Ev,%Iv", "%g0 %Ev,%Ib", "%g0 %Ev,%Ib",
*/
"%g0 %Eb,%Ib", "%g0 %Ev,%Iv", "%g0 %Ev,%Ix", "%g0 %Ev,%Ix", "test %Eb,%Rb",
"test %Ev,%Rv", "xchg %Eb,%Rb", "xchg %Ev,%Rv", "mov %Eb,%Rb",
"mov %Ev,%Rv", "mov %Rb,%Eb", "mov %Rv,%Ev", "mov %Ew,%Sw", "lea %Rv,%M ",
"mov %Sw,%Ew", "pop %Ev",
/* 9 */
"nop", "xchg %ecx,%eax", "xchg %edx,%eax", "xchg %ebx,%eax",
"xchg %esp,%eax", "xchg %ebp,%eax", "xchg %esi,%eax", "xchg %edi,%eax",
"cbw", "cwd", "call %Ap", "fwait", "pushf%d ", "popf%d ", "sahf", "lahf",
/* a */
"mov al,%Oc", "mov %eax,%Ov", "mov %Oc,al", "mov %Ov,%eax", "%P movsb",
"%P movs%w", "%P cmpsb", "%P cmps%w ", "test al,%Ib", "test %eax,%Iv",
"%P stosb", "%P stos%w ", "%P lodsb", "%P lods%w ", "%P scasb",
"%P scas%w ",
/* b */
"mov al,%Ib", "mov cl,%Ib", "mov dl,%Ib", "mov bl,%Ib", "mov ah,%Ib",
"mov ch,%Ib", "mov dh,%Ib", "mov bh,%Ib", "mov %eax,%Iv", "mov %ecx,%Iv",
"mov %edx,%Iv", "mov %ebx,%Iv", "mov %esp,%Iv", "mov %ebp,%Iv",
"mov %esi,%Iv", "mov %edi,%Iv",
/* c */
"%g1 %Eb,%Ib", "%g1 %Ev,%Ib", "ret %Iw", "ret", "les %Rv,%Mp",
"lds %Rv,%Mp", "mov %Eb,%Ib", "mov %Ev,%Iv", "enter %Iw,%Ib", "leave",
"retf %Iw", "retf", "int 03", "int %Ib", "into", "iret",
/* d */
"%g1 %Eb,1", "%g1 %Ev,1", "%g1 %Eb,cl", "%g1 %Ev,cl", "aam ; %Ib",
"aad ; %Ib", "setalc", "xlat",
/*#if 0
"esc 0,%Ib", "esc 1,%Ib", "esc 2,%Ib", "esc 3,%Ib",
"esc 4,%Ib", "esc 5,%Ib", "esc 6,%Ib", "esc 7,%Ib",
#else */
"%f0", "%f1", "%f2", "%f3", "%f4", "%f5", "%f6", "%f7",
//#endif
/* e */
"loopne %Jb", "loope %Jb", "loop %Jb", "j%j cxz %Jb", "in al,%Ib",
"in %eax,%Ib", "out %Ib,al", "out %Ib,%eax", "call %Jv", "jmp %Jv",
"jmp %Ap", "jmp %Ks%Jb", "in al,dx", "in %eax,dx", "out dx,al",
"out dx,%eax",
/* f */
"lock %p ", 0, "repne %p ", "repe %p ", "hlt", "cmc", "%g2", "%g2", "clc",
"stc", "cli", "sti", "cld", "std", "%g3", "%g4"};
char *second[] = {
/* 0 */
"%g5", "%g6", "lar %Rv,%Ew", "lsl %Rv,%Ew", 0, "loadall", "clts", "loadall",
"invd", "wbinvd", 0, "ud2", 0, 0, 0, 0,
/* 1 */
"movups %RX,%EX", "movups %Md,%RX", "%x0", "movlps %Md,%RX",
"unpcklps %RX,%EX", "unpckhps %RX,%EX", "%x1", "movhps %Md,%RX", "%g7", 0,
0, 0, 0, 0, 0, 0,
/* 2 */
"mov %Ed,%Cd", "mov %Ed,%Dd", "mov %Cd,%Ed", "mov %Dd,%Ed", "mov %Ed,%Td",
0, "mov %Td,%Ed", 0, "movaps %RX,%EX", "movaps %Md,%RX", "cvtpi2ps %RX,%EM",
"movntps %Md,%RX", "cvttps2pi %RM,%EX", "cvtps2pi %RM,%EX",
"ucomiss %RX,%EX", "comiss %RX,%EX",
/* 3 */
"wrmsr", "rdtsc", "rdmsr", "rdpmc", "sysenter", "sysexit", 0, 0, 0, 0, 0, 0,
0, 0, 0, 0,
/* 4 */
"cmovo %Rv,%Ev", "cmovno %Rv,%Ev", "cmovc %Rv,%Ev", "cmovnc %Rv,%Ev",
"cmovz %Rv,%Ev", "cmovnz %Rv,%Ev", "cmovbe %Rv,%Ev", "cmovnbe %Rv,%Ev",
"cmovs %Rv,%Ev", "cmovns %Rv,%Ev", "cmovp %Rv,%Ev", "cmovnp %Rv,%Ev",
"cmovl %Rv,%Ev", "cmovge %Rv,%Ev", "cmovle %Rv,%Ev", "cmovg %Rv,%Ev",
/* 5 */
"movmskps %Rd,%GX", "sqrtps %RX,%EX", "rsqrtps %RX,%EX", "rcpps %RX,%EX",
"andps %RX,%EX", "andnps %RX,%EX", "orps %RX,%EX", "xorps %RX,%EX",
"addps %RX,%EX", "mulps %RX,%EX", "cvtps2pd %RX,%EX", "cvtdq2ps %RX,%EX",
"subps %RX,%EX", "minps %RX,%EX", "divps %RX,%EX", "maxps %RX,%EX",
/* 6 */
"punpcklbw %RM,%EM", "punpcklwd %RM,%EM", "punpckldq %RM,%EM",
"packsswb %RM,%EM", "pcmpgtb %RM,%EM", "pcmpgtw %RM,%EM", "pcmpgtd %RM,%EM",
"packuswb %RM,%EM", "punpckhbw %RM,%EM", "punpckhwd %RM,%EM",
"punpckhdq %RM,%EM", "packssdw %RM,%EM", 0, 0, "movd %RM,%Md",
"movq %RM,%EM",
/* 7 */
"pshufw %LM,%FM,%Ib", "%g3w %EM,%Ib", "%g3d %EM,%Ib", "%g3q %EM,%Ib",
"pcmpeqb %RM,%EM", "pcmpeqw %RM,%EM", "pcmpeqd %RM,%EM", "emms", 0, 0, 0, 0,
0, 0, "movd %Md,%RM", "movq %Md,%RM",
/* 8 */
"jo %Jv", "jno %Jv", "jb %Jv", "jnb %Jv", "jz %Jv", "jnz %Jv", "jbe %Jv",
"ja %Jv", "js %Jv", "jns %Jv", "jp %Jv", "jnp %Jv", "jl %Jv", "jge %Jv",
"jle %Jv", "jg %Jv",
/* 9 */
"seto %Eb", "setno %Eb", "setc %Eb", "setnc %Eb", "setz %Eb", "setnz %Eb",
"setbe %Eb", "setnbe %Eb", "sets %Eb", "setns %Eb", "setp %Eb", "setnp %Eb",
"setl %Eb", "setge %Eb", "setle %Eb", "setg %Eb",
/* a */
"push fs", "pop fs", "cpuid", "bt %Ev,%Rv", "shld %Ev,%Rv,%Ib",
"shld %Ev,%Rv,cl", 0, 0, "push gs", "pop gs", "rsm", "bts %Ev,%Rv",
"shrd %Ev,%Rv,%Ib", "shrd %Ev,%Rv,cl", "%g8", "imul %Rv,%Ev",
/* b */
"cmpxchg %Eb,%Rb", "cmpxchg %Ev,%Rv", "lss %Rv,%Mp", "btr %Ev,%Rv",
"lfs %Rv,%Mp", "lgs %Rv,%Mp", "movzx %Rv,%Eb", "movzx %Rv,%Ew", 0, 0,
"%g7 %Ev,%Ib", "btc %Ev,%Rv", "bsf %Rv,%Ev", "bsr %Rv,%Ev", "movsx %Rv,%Eb",
"movsx %Rv,%Ew",
/* c */
"xadd %Eb,%Rb", "xadd %Ev,%Rv", "cmpps %RX,%EX,%Ib", "movnti %Md,%Rd",
"pinsrw %LM,%Fd,%Ib", "pextrw %Gd,%RM,%Ib", "shufps %RX,%EX,%Ib",
"cmpxchg8b %Myv", "bswap eax", "bswap ecx", "bswap edx", "bswap ebx",
"bswap esp", "bswap ebp", "bswap esi", "bswap edi",
/* d */
0, "psrlw %RM,%EM", "psrld %RM,%EM", "psrlq %RM,%EM", "paddq %RM,%EM",
"pmullw %RM,%EM", 0, "pmovmskb %Rd,%GM", "psubusb %RM,%EM",
"psubusw %RM,%EM", "pminub %RM,%EM", "pand %RM,%EM", "paddusb %RM,%EM",
"paddusw %RM,%EM", "pmaxub %RM,%EM", "pandn %RM,%EM",
/* e */
"pavgb %RM,%EM", "psraw %RM,%EM", "psrad %RM,%EM", "pavgw %RM,%EM",
"pmulhuw %RM,%EM", "pmulhw %RM,%EM", 0, "movntq %Myv,%RM", "psubsb %RM,%EM",
"psubsw %RM,%EM", "pminsw %RM,%EM", "por %RM,%EM", "paddsb %RM,%EM",
"paddsw %RM,%EM", "pmaxsw %RM,%EM", "pxor %RM,%EM",
/* f */
0, "psllw %RM,%EM", "pslld %RM,%EM", "psllq %RM,%EM", "pmuludq %RM,%EM",
"pmaddwd %RM,%EM", "psadbw %RM,%EM", "maskmovq %GM,%RM", "psubb %RM,%EM",
"psubw %RM,%EM", "psubd %RM,%EM", "psubq %RM,%EM", "paddb %RM,%EM",
"paddw %RM,%EM", "paddd %RM,%EM", 0};
char *second_f30f[] = {
// 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 1
"movss %RX,%EX", "movss %Md,%RX", "movsldup %RX,%MX", 0, 0, 0,
"movshdup %RX,%MX", 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 2
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "cvtsi2ss %RX,%Ed", 0, "cvttss2si %Rd,%EX",
"cvtss2si %Rd,%EX", 0, 0,
// 3
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 4
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 5
0, "sqrtss %RX,%EX", "rsqrtss %RX,%EX", "rcpss %RX,%EX", 0, 0, 0, 0,
"addss %RX,%EX", "mulss %RX,%EX", "cvtss2sd %RX,%EX", "cvttps2dq %RX,%EX",
"subss %RX,%EX", "minss %RX,%EX", "divss %RX,%EX", "maxss %RX,%EX",
// 6
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "movdqu %RX,%EX",
// 7
"pshufhw %RX,%EX,%Ib", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
"movq %RX,%EX", "movdqu %Md,%RX",
// 8
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 9
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// a
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// b
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// c
0, 0, "cmpss %RX,%EX,%Ib", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// d
0, 0, 0, 0, 0, 0, "movq2dq RX,RM", 0, 0, 0, 0, 0, 0, 0, 0, 0,
// e
0, 0, 0, 0, 0, 0, "cvtdq2pd %RX,%EX", 0, 0, 0, 0, 0, 0, 0, 0, 0,
// f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
char *second_f20f[] = {
// 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 1
"movsd %RX,%Md", "movsd %Md,%RX", "movddup %RX,%MX", 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
// 2
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "cvtsi2sd %RX,%Md", 0, "cvttsd2si %Rd,%EX",
"cvtsd2si %Rd,%EX", 0, 0,
// 3
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 4
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 5
0, "sqrtsd %RX,%EX", 0, 0, 0, 0, 0, 0, "addsd %RX,%EX", "mulsd %RX,%MX",
"cvtsd2ss %RX,%EX", 0, "subsd %RX,%EX", "minsd %RX,%EX", "divsd %RX,%EX",
"maxsd %RX,%EX",
// 6
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 7
"pshuflw %RX,%EX,%Ib", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "haddps %RX,%EX",
"hsubps %RX,%EX", 0, 0,
// 8
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 9
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// a
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// b
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// c
0, 0, "cmpsd %RX,%EX,%Ib", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// d
"addsubps %RX,%EX", 0, 0, 0, 0, 0, "movdq2q %RM,%RX", 0, 0, 0, 0, 0, 0, 0,
0, 0,
// e
0, 0, 0, 0, 0, 0, "cvtpd2dq %RX,%EX", 0, 0, 0, 0, 0, 0, 0, 0, 0,
// f
"lddqu %Md,%RX", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
char *second_660f[] = {
// 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 1
"movupd %RX,%Md", "movupd %Md,%RX", "movlpd %RX,%Md", "movlpd %Md,%RX",
"unpcklpd %RX,%EX", "unpckhpd %RX,%EX", "movhpd %RX,%Md", "movhpd %Md,%RX",
0, 0, 0, 0, 0, 0, 0, 0,
// 2
0, 0, 0, 0, 0, 0, 0, 0, "movapd %RX,%EX", "movapd %Md,%RX",
"cvtpi2pd %RX,%EM", "movntpd %Md,%RX", "cvttpd2pi %RM,%EX",
"cvtpd2pi %RM,%EX", "ucomisd %RX,%EX", "comisd %RX,%EX",
// 3
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 4
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 5
"movmskpd %Rd,%GX", "sqrtpd %RX,%EX", 0, 0, "andpd %RX,%EX",
"andnpd %RX,%EX", "orpd %RX,%MX", "xorpd %RX,%EX", "addpd %RX,%EX",
"mulpd %RX,%MX", "cvtpd2ps %RX,%EX", "cvtps2dq %RX,%EX", "subpd %RX,%EX",
"minpd %RX,%EX", "divpd %RX,%EX", "maxpd %RX,%EX",
// 6
"punpcklbw %RX,%EX", "punpcklwd %RX,%EX", "punpckldq %RX,%EX",
"packsswb %RX,%EX", "pcmpgtb %RX,%EX", "pcmpgtw %RX,%EX", "pcmpgtd %RX,%EX",
"packuswb %RX,%EX", "punpckhbw %RX,%EX", "punpckhwd %RX,%EX",
"punpckhdq %RX,%EX", "packssdw %RX,%EX", "punpcklqdq %RX,%EX",
"punpckhqdq %RX,%EX", "movd %RX,%Md", "movdqa %RX,%EX",
// 7
"pshufd %RX,%EX,%Ib", "%g3w %EX,%Ib", "%g3d %EX,%Ib", "%g9",
"pcmpeqb %RX,%EX", "pcmpeqw %RX,%EX", "pcmpeqd %RX,%EX", 0, 0, 0, 0, 0,
"haddpd %RX,%EX", "hsubpd %RX,%EX", "movd %Md,%RX", "movdqa %Md,%RX",
// 8
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// 9
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// a
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// b
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
// c
0, 0, "cmppd %RX,%EX,%Ib", 0, "pinsrw %LX,%Fd,%Ib", "pextrw %Gd,%RX,%Ib",
"shufpd %RX,%EX,%Ib", 0, 0, 0, 0, 0, 0, 0, 0, 0,
// d
"addsubpd %RX,%EX", "psrlw %RX,%EX", "psrld %RX,%EX", "psrlq %RX,%EX",
"paddq %RX,%EX", "pmullw %RX,%EX", "movq %Md,%RX", "pmovmskb %Rd,%GX",
"psubusb %RX,%EX", "psubusw %RX,%EX", "pminub %RX,%EX", "pand %RX,%EX",
"paddusb %RX,%EX", "paddusw %RX,%EX", "pmaxub %RX,%EX", "pandn %RX,%EX",
// e
"pavgb %RX,%EX", "psraw %RX,%EX", "psrad %RX,%EX", "pavgw %RX,%EX",
"pmulhuw %RX,%EX", "pmulhw %RX,%EX", "cvttpd2dq %RX,%EX", "movntdq %Md,%RX",
"psubsb %RX,%EX", "psubsw %RX,%EX", "pminsw %RX,%EX", "por %RX,%EX",
"paddsb %RX,%EX", "paddsw %RX,%EX", "pmaxsw %RX,%EX", "pxor %RX,%EX",
// f
0, "psllw %RX,%EX", "pslld %RX,%EX", "psllq %RX,%EX", "pmuludq %RX,%EX",
"pmaddwd %RX,%EX", "psadbw %RX,%EX", "maskmovdqu %RX,%RX", "psubb %RX,%EX",
"psubw %RX,%EX", "psubd %RX,%EX", "psubq %RX,%EX", "paddb %RX,%EX",
"paddw %RX,%EX", "paddd %RX,%EX", 0};
char *groups[][8] = {/* group 0 is group 3 for %Ev set */
/* 0 */
{"add", "or", "adc", "sbb", "and", "sub", "xor", "cmp"},
/* 1 */
{"rol", "ror", "rcl", "rcr", "shl", "shr", "shl", "sar"},
/* 2 */ /* v v*/
{"test %Eq,%Iq", 0 /*"test %Eq,%Iq"*/, "not %Ec",
"neg %Ec", "mul %Ec", "imul %Ec", "div %Ec", "idiv %Ec"},
/* 3 */
{"inc %Eb", "dec %Eb", "psrl", 0, "psra", 0, "psll", 0},
/* 4 */
{"inc %Ev", "dec %Ev", "call %Kn%Ev", "call %Kf%Ep",
"jmp %Kn%Ev", "jmp %Kf%Ep", "push %Ev", 0},
/* 5 */
{"sldt %Ew", "str %Ew", "lldt %Ew", "ltr %Ew", "verr %Ew",
"verw %Ew", 0, 0},
/* 6 */
{"sgdt %Ms", "sidt %Ms", "lgdt %Ms", "lidt %Ms",
"smsw %Ew", 0, "lmsw %Ew", "invlpg %Em"},
/* 7 */
{"prefetchnta %Em", "prefetcht0 %Em", "prefetcht1 %Em",
"prefetcht2 %Em", "bt", "bts", "btr", "btc"},
/* 8 */
{"fxsave %Em", "fxrstor %Em", "ldmxcsr %Em", "stmxcsr %Em",
0, "lfence", "mfence", "%x2"},
/* 9 */
{0, 0, "psrlq %RX,%Ib", "psrldq %RX,%Ib", 0, 0,
"psllq %RX,%Ib", "pslldq %RX,%Ib"}
};
/* zero here means invalid. If first entry starts with '*', use st(i) */
/* no assumed %EFs here. Indexed by RM(modrm()) */
char *f0[] = {0, 0, 0, 0, 0, 0, 0, 0};
char *fop_9[] = {"*fxch st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_10[] = {"fnop", 0, 0, 0, 0, 0, 0, 0};
char *fop_12[] = {"fchs", "fabs", 0, 0, "ftst", "fxam", 0, 0};
char *fop_13[] = {"fld1", "fldl2t", "fldl2e", "fldpi",
"fldlg2", "fldln2", "fldz", 0};
char *fop_14[] = {"f2xm1", "fyl2x", "fptan", "fpatan",
"fxtract", "fprem1", "fdecstp", "fincstp"};
char *fop_15[] = {"fprem", "fyl2xp1", "fsqrt", "fsincos",
"frndint", "fscale", "fsin", "fcos"};
char *fop_21[] = {0, "fucompp", 0, 0, 0, 0, 0, 0};
char *fop_28[] = {"fneni", "fndisi", "fnclex", "fninit", "fnsetpm", 0, 0, 0};
char *fop_32[] = {"*fadd %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_33[] = {"*fmul %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_36[] = {"*fsubr %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_37[] = {"*fsub %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_38[] = {"*fdivr %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_39[] = {"*fdiv %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_40[] = {"*ffree %GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_42[] = {"*fst %GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_43[] = {"*fstp %GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_44[] = {"*fucom %GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_45[] = {"*fucomp %GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_48[] = {"*faddp %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_49[] = {"*fmulp %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_51[] = {0, "fcompp", 0, 0, 0, 0, 0, 0};
char *fop_52[] = {"*fsubrp %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_53[] = {"*fsubp %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_54[] = {"*fdivrp %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_55[] = {"*fdivp %GF,st", 0, 0, 0, 0, 0, 0, 0};
char *fop_60[] = {"fnstsw ax", 0, 0, 0, 0, 0, 0, 0};
char *fop_16[] = {"*fcmovb st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_17[] = {"*fcmove st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_18[] = {"*fcmovbe st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_19[] = {"*fcmovu st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_24[] = {"*fcmovnb st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_25[] = {"*fcmovne st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_26[] = {"*fcmovnbe st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_27[] = {"*fcmovnu st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_29[] = {"*fucomi st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_30[] = {"*fcomi st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_61[] = {"*fucomip st,%GF", 0, 0, 0, 0, 0, 0, 0};
char *fop_62[] = {"*fcomip st,%GF", 0, 0, 0, 0, 0, 0, 0};
char **fspecial[] = {/* 0=use st(i), 1=undefined 0 in fop_* means undefined */
0, 0, 0, 0, 0, 0, 0,
0, 0, fop_9, fop_10, 0, fop_12, fop_13,
fop_14, fop_15, fop_16, fop_17, fop_18, fop_19, f0,
fop_21, f0, f0, fop_24, fop_25, fop_26, fop_27,
fop_28, fop_29, fop_30, f0, fop_32, fop_33, f0,
f0, fop_36, fop_37, fop_38, fop_39, fop_40, f0,
fop_42, fop_43, fop_44, fop_45, f0, f0, fop_48,
fop_49, f0, fop_51, fop_52, fop_53, fop_54, fop_55,
f0, f0, f0, f0, fop_60, fop_61, fop_62,
f0};
char *floatops[] = {/* assumed " %EF" at end of each. mod != 3 only */
/*00*/ "fadd",
"fmul",
"fcom",
"fcomp",
"fsub",
"fsubr",
"fdiv",
"fdivr",
/*08*/ "fld",
0,
"fst",
"fstp",
"fldenv",
"fldcw",
"fnstenv",
"fnstcw",
/*16*/ "fiadd",
"fimul",
"ficomw",
"ficompw",
"fisub",
"fisubr",
"fidiv",
"fidivr",
/*24*/ "fild",
0,
"fist",
"fistp",
"frstor",
"fldt",
0,
"fstpt",
/*32*/ "faddq",
"fmulq",
"fcomq",
"fcompq",
"fsubq",
"fsubrq",
"fdivq",
"fdivrq",
/*40*/ "fldq",
0,
"fstq",
"fstpq",
0,
0,
"fnsave",
"fnstsw",
/*48*/ "fiaddw",
"fimulw",
"ficomw",
"ficompw",
"fisubw",
"fisubrw",
"fidivw",
"fidivr",
/*56*/ "fildw",
0,
"fistw",
"fistpw",
"fbldt",
"fildq",
"fbstpt",
"fistpq"};
/* variables controlled by command line flags */
unsigned char seg_size = 16; /* default size is 16 */
unsigned char must_do_size;
unsigned int wordop, qwordop; /* dealing with word or byte operand */
unsigned long instruction_offset;
unsigned short done_space; /* for opcodes with > one space */
char ubuf[100], *ubufp;
int col; /* output column */
unsigned int prefix; /* segment override prefix byte */
unsigned int modrmv; /* flag for getting modrm byte */
unsigned int sibv; /* flag for getting sib byte */
unsigned int opsize; /* just like it says ... */
unsigned int addrsize;
/*------------------------------------------------------------------------*/
void uprintf(const char *s, ...) {
va_list argptr;
va_start(argptr, s);
vsprintf(ubufp, s, argptr);
va_end(argptr);
while (*ubufp)
ubufp++;
}
void uputchar(char c) {
if (c == '\t') {
if (done_space)
uputchar(' ');
else {
done_space = 1;
do {
*ubufp++ = ' ';
} while ((ubufp - ubuf) % 8);
}
} else
*ubufp++ = c;
*ubufp = 0;
}
/*------------------------------------------------------------------------*/
void printbyte(unsigned char c) {
if (c < 10)
uprintf("%u", (unsigned char)c);
else if (c < 16 || c > 0x9F)
uprintf("0%Xh", (unsigned char)c);
else
uprintf("%Xh", (unsigned char)c);
}
void printword(unsigned short c) {
if (c < 256)
printbyte(c);
else if (c < 0xA00 || (c > 0xFFF && c < 0xA000))
uprintf("%Xh", c);
else
uprintf("0%Xh", c);
}
void printdword(unsigned int c) {
if (c < 65536)
printword((unsigned short)c);
else if (c < 0xA0000L || (c > 0xFFFFFL && c < 0xA00000L) ||
(c > 0xFFFFFFL && c < 0xA000000L) ||
(c > 0xFFFFFFFL && c < 0xA0000000L))
uprintf("%lxh", c);
else
uprintf("0%lxh", c);
}
void addr_to_hex(long addr, unsigned char splitup) {
static char buffer[12];
WORD32 adr;
adr.dword = addr;
if (splitup) {
if (adr.w.seg == 0 /*||adr.w.seg==0xffff*/)
printword(adr.w.ofs); // sprintf(buffer,"%04Xh",adr.w.ofs);
else {
sprintf(buffer, "%04Xh:%04Xh", adr.w.seg, adr.w.ofs);
uprintf("%s", buffer);
}
} else {
if (adr.w.seg == 0 /*||adr.w.seg==0xffff*/)
printword(adr.w.ofs); // sprintf(buffer,"%04Xh",adr.w.ofs);
else
printdword(addr); // sprintf(buffer, "%08lXh",addr);
}
}
unsigned char getbyte(void) {
short c;
c = output[outptr++];
fprintf(hout, "%02X", c); /* print out byte */
col += 2;
instruction_offset++;
return c;
}
int modrm() {
if (modrmv == (unsigned int)-1)
modrmv = getbyte();
return modrmv;
}
int sib() {
if (sibv == (unsigned int)-1)
sibv = getbyte();
return sibv;
}
/*------------------------------------------------------------------------*/
int bytes(char c) {
switch (c) {
case 'b':
return 1;
case 'w':
return 2;
case 'd':
return 4;
case 'v':
if (opsize == 32)
return 4;
else
return 2;
}
return 0;
}
/*------------------------------------------------------------------------*/
void outhex(char subtype, int extend, int optional, int defsize, int sign) {
int n = 0, s = 0, i;
long delta;
unsigned char buff[6];
// char *name;
char signchar;
switch (subtype) {
case 'q':
if (wordop) {
if (opsize == 16)
n = 2;
else
n = 4;
} else
n = 1;
break;
case 'a':
break;
case 'x':
extend = defsize / 8; // 2;
n = 1;
break;
case 'b':
n = 1;
break;
case 'w':
n = 2;
break;
case 'd':
n = 4;
break;
case 's':
n = 6;
break;
case 'c':
case 'v':
if (defsize == 32)
n = 4;
else
n = 2;
break;
case 'p':
if (defsize == 32)
n = 6;
else
n = 4;
s = 1;
break;
}
for (i = 0; i < n; i++)
buff[i] = getbyte();
for (; i < extend; i++)
buff[i] = (buff[i - 1] & 0x80) ? (unsigned char)0xff : (unsigned char)0;
if (s) {
uprintf("%02X%02X:", buff[n - 1], buff[n - 2]);
n -= 2;
}
switch (n) {
case 1:
delta = *(signed char *)buff;
break;
case 2:
delta = *(signed short *)buff;
break;
case 4:
delta = *(signed long *)buff;
break;
}
if (extend > n) {
if (subtype != 'x') {
if ((long)delta < 0) {
delta = -delta;
signchar = '-';
} else
signchar = '+';
if (delta || !optional) {
uprintf("%c", signchar);
printdword(delta);
// uprintf("%c%0*lXh", signchar, extend+1, delta);
}
} else {
if (extend == 2)
delta = (unsigned short)delta;
printdword(delta);
// uprintf("%0.*lXh", 2*extend+1, delta);
}
return;
}
if ((n == 4) && !sign) {
addr_to_hex(delta, 0);
return;
}
switch (n) {
case 1:
if (sign && (char)delta < 0) {
delta = -delta;
signchar = '-';
} else
signchar = '+';
if (sign)
uprintf("%c", signchar);
printbyte((unsigned char)delta);
// if (sign)uprintf("%c%03Xh",signchar,(unsigned char)delta);
// else uprintf("%03Xh", (unsigned char)delta);
break;
case 2:
if (sign && (int)delta < 0) {
signchar = '-';
delta = -delta;
} else
signchar = '+';
if (sign)
uprintf("%c", signchar);
printword((unsigned short)delta);
// if (sign) uprintf("%c%05Xh", signchar,(int)delta);
// else uprintf("%05Xh", (unsigned int)delta);
break;
case 4:
if (sign && (long)delta < 0) {
delta = -delta;
signchar = '-';
} else
signchar = '+';
if (sign)
uprintf("%c", signchar);
printdword(delta);
// if (sign)uprintf("%c%09lXh", signchar, (unsigned long)delta);
// else uprintf("%09lXh", (unsigned long)delta);
break;
}
}
/*------------------------------------------------------------------------*/
void reg_name(int regnum, char size) {
if (size == 'F') { /* floating point register? */
uprintf("st(%d)", regnum);
return;
}
if (size == 'M') { /* multimedia register? */
uprintf("mm%d", regnum);
return;
}
if (size == 'X') { /* xmm register? */
uprintf("xmm%d", regnum);
return;
}
if (((size == 'v') && (opsize == 32)) || (size == 'd') ||
((size == 'c' || size == 'q') && wordop && opsize == 32))
uputchar('e');
// printf("size=%c wordop=%d opsize=%d\n",size,wordop,opsize);
if (size == 'b' || ((size == 'q' || size == 'c') && !wordop)) {
uputchar("acdbacdb"[regnum]);
uputchar("llllhhhh"[regnum]);
} else {
uputchar("acdbsbsd"[regnum]);
uputchar("xxxxppii"[regnum]);
}
}
/*------------------------------------------------------------------------*/
void do_sib(int m) {
int s, i, b;
s = SCALE(sib());
i = INDEX(sib());
b = BASE(sib());
switch (b) { /* pick base */
case 0:
ua_str("%p:[eax");
break;
case 1:
ua_str("%p:[ecx");
break;
case 2:
ua_str("%p:[edx");
break;
case 3:
ua_str("%p:[ebx");
break;
case 4:
ua_str("%p:[esp");
break;
case 5:
if (m == 0) {
ua_str("%p:[");
outhex('d', 4, 0, addrsize, 0);
} else
ua_str("%p:[ebp");
break;
case 6:
ua_str("%p:[esi");
break;
case 7:
ua_str("%p:[edi");
break;
}
switch (i) { /* and index */
case 0:
uprintf("+eax");
break;
case 1:
uprintf("+ecx");
break;
case 2:
uprintf("+edx");
break;
case 3:
uprintf("+ebx");
break;
case 4:
break;
case 5:
uprintf("+ebp");
break;
case 6:
uprintf("+esi");
break;
case 7:
uprintf("+edi");
break;
}
if (i != 4) {
switch (s) { /* and scale */
case 0:
uprintf("");
break;
case 1:
uprintf("*2");
break;
case 2:
uprintf("*4");
break;
case 3:
uprintf("*8");
break;
}
}
}
/*------------------------------------------------------------------------*/
void do_modrm(char subtype) {
int mod = MOD(modrm());
int rm = RM(modrm());
int extend = (addrsize == 32) ? 4 : 2;
if (mod == 3) { /* specifies two registers */
reg_name(rm, subtype);
return;
}
if (must_do_size) {
if (qwordop)
ua_str("qword ptr ");
else {
if (wordop) {
if (/*addrsize==32 ||*/ opsize == 32) { /* then must specify size */
ua_str("dword ptr ");
} else
ua_str("word ptr ");
} else
ua_str("byte ptr ");
}
}
if ((mod == 0) && (rm == 5) &&
(addrsize == 32)) { /* mem operand with 32 bit ofs */
ua_str("%p:[");
outhex('d', extend, 0, addrsize, 0);
uputchar(']');
return;
}
if ((mod == 0) && (rm == 6) && (addrsize == 16)) { /* 16 bit dsplcmnt */
ua_str("%p:[");
outhex('w', extend, 0, addrsize, 0);
uputchar(']');
return;
}
if ((addrsize != 32) || (rm != 4))
ua_str("%p:[");
if (addrsize == 16) {
switch (rm) {
case 0:
uprintf("bx+si");
break;
case 1:
uprintf("bx+di");
break;
case 2:
uprintf("bp+si");
break;
case 3:
uprintf("bp+di");
break;
case 4:
uprintf("si");
break;
case 5:
uprintf("di");
break;
case 6:
uprintf("bp");
break;
case 7:
uprintf("bx");
break;
}
} else {
switch (rm) {
case 0:
uprintf("eax");
break;
case 1:
uprintf("ecx");
break;
case 2:
uprintf("edx");
break;
case 3:
uprintf("ebx");
break;
case 4:
do_sib(mod);
break;
case 5:
uprintf("ebp");
break;
case 6:
uprintf("esi");
break;
case 7:
uprintf("edi");
break;
}
}
switch (mod) {
case 1:
outhex('b', extend, 1, addrsize, 0);
break;
case 2:
outhex('v', extend, 1, addrsize, 1);
break;
}
uputchar(']');
}
/*------------------------------------------------------------------------*/
void floating_point(int e1) {
int esc = e1 * 8 + REG(modrm());
if (MOD(modrm()) == 3) { // 2- >C0
if (fspecial[esc]) {
if (fspecial[esc][0] != NULL && fspecial[esc][0][0] == '*')
ua_str(fspecial[esc][0] + 1);
else
ua_str(fspecial[esc][RM(modrm())]);
} else {
ua_str(floatops[esc]);
ua_str(" %EF");
}
} else {
ua_str(floatops[esc]);
ua_str(" %EF");
}
}
/*------------------------------------------------------------------------*/
/* Main table driver */
void percent(char type, char subtype) {
long vofs;
int extend = (addrsize == 32) ? 4 : 2;
unsigned char c;
switch (type) {
case 'A': /* direct address */