i386-dis.c

来自「基于4个mips核的noc设计」· C语言 代码 · 共 2,329 行 · 第 1/5 页

  { "psrlq", MX, EM, XX },
  { "paddq", MX, EM, XX },
  { "pmullw", MX, EM, XX },
  { PREGRP21 },
  { "pmovmskb", Gd, MS, XX },
  /* d8 */
  { "psubusb", MX, EM, XX },
  { "psubusw", MX, EM, XX },
  { "pminub", MX, EM, XX },
  { "pand", MX, EM, XX },
  { "paddusb", MX, EM, XX },
  { "paddusw", MX, EM, XX },
  { "pmaxub", MX, EM, XX },
  { "pandn", MX, EM, XX },
  /* e0 */
  { "pavgb", MX, EM, XX },
  { "psraw", MX, EM, XX },
  { "psrad", MX, EM, XX },
  { "pavgw", MX, EM, XX },
  { "pmulhuw", MX, EM, XX },
  { "pmulhw", MX, EM, XX },
  { PREGRP15 },
  { PREGRP25 },
  /* e8 */
  { "psubsb", MX, EM, XX },
  { "psubsw", MX, EM, XX },
  { "pminsw", MX, EM, XX },
  { "por", MX, EM, XX },
  { "paddsb", MX, EM, XX },
  { "paddsw", MX, EM, XX },
  { "pmaxsw", MX, EM, XX },
  { "pxor", MX, EM, XX },
  /* f0 */
  { "(bad)", XX, XX, XX },
  { "psllw", MX, EM, XX },
  { "pslld", MX, EM, XX },
  { "psllq", MX, EM, XX },
  { "pmuludq", MX, EM, XX },
  { "pmaddwd", MX, EM, XX },
  { "psadbw", MX, EM, XX },
  { PREGRP18 },
  /* f8 */
  { "psubb", MX, EM, XX },
  { "psubw", MX, EM, XX },
  { "psubd", MX, EM, XX },
  { "psubq", MX, EM, XX },
  { "paddb", MX, EM, XX },
  { "paddw", MX, EM, XX },
  { "paddd", MX, EM, XX },
  { "(bad)", XX, XX, XX }
};

static const struct dis386 dis386_twobyte_intel[] = {
  /* 00 */
  { GRP6 },
  { GRP7 },
  { "lar", Gv, Ew, XX },
  { "lsl", Gv, Ew, XX },
  { "(bad)", XX, XX, XX },
  { "syscall", XX, XX, XX },
  { "clts", XX, XX, XX },
  { "sysretP", XX, XX, XX },
  /* 08 */
  { "invd", XX, XX, XX },
  { "wbinvd", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "ud2a", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { GRPAMD },
  { "femms" , XX, XX, XX},
  { "", MX, EM, OPSUF }, /* See OP_3DNowSuffix */
  /* 10 */
  { PREGRP8 },
  { PREGRP9 },
  { "movlpX", XM, EX, SIMD_Fixup, 'h' },  /* really only 2 operands */
  { "movlpX", EX, XM, SIMD_Fixup, 'h' },
  { "unpcklpX", XM, EX, XX },
  { "unpckhpX", XM, EX, XX },
  { "movhpX", XM, EX, SIMD_Fixup, 'l' },
  { "movhpX", EX, XM, SIMD_Fixup, 'l' },
  /* 18 */
  { GRP14 },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  /* 20 */
  /* these are all backward in appendix A of the intel book */
  { "mov", Rm, Cm, XX },
  { "mov", Rm, Dm, XX },
  { "mov", Cm, Rm, XX },
  { "mov", Dm, Rm, XX },
  { "mov", Rd, Td, XX },
  { "(bad)", XX, XX, XX },
  { "mov", Td, Rd, XX },
  { "(bad)", XX, XX, XX },
  /* 28 */
  { "movapX", XM, EX, XX },
  { "movapX", EX, XM, XX },
  { PREGRP2 },
  { "movntpX", Ev, XM, XX },
  { PREGRP4 },
  { PREGRP3 },
  { "ucomisX", XM,EX, XX },
  { "comisX", XM,EX, XX },
  /* 30 */
  { "wrmsr", XX, XX, XX },
  { "rdtsc", XX, XX, XX },
  { "rdmsr", XX, XX, XX },
  { "rdpmc", XX, XX, XX },
  { "sysenter", XX, XX, XX },
  { "sysexit", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  /* 38 */
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  /* 40 */
  { "cmovo", Gv, Ev, XX },
  { "cmovno", Gv, Ev, XX },
  { "cmovb", Gv, Ev, XX },
  { "cmovae", Gv, Ev, XX },
  { "cmove", Gv, Ev, XX },
  { "cmovne", Gv, Ev, XX },
  { "cmovbe", Gv, Ev, XX },
  { "cmova", Gv, Ev, XX },
  /* 48 */
  { "cmovs", Gv, Ev, XX },
  { "cmovns", Gv, Ev, XX },
  { "cmovp", Gv, Ev, XX },
  { "cmovnp", Gv, Ev, XX },
  { "cmovl", Gv, Ev, XX },
  { "cmovge", Gv, Ev, XX },
  { "cmovle", Gv, Ev, XX },
  { "cmovg", Gv, Ev, XX },
  /* 50 */
  { "movmskpX", Gd, XS, XX },
  { PREGRP13 },
  { PREGRP12 },
  { PREGRP11 },
  { "andpX", XM, EX, XX },
  { "andnpX", XM, EX, XX },
  { "orpX", XM, EX, XX },
  { "xorpX", XM, EX, XX },
  /* 58 */
  { PREGRP0 },
  { PREGRP10 },
  { PREGRP17 },
  { PREGRP16 },
  { PREGRP14 },
  { PREGRP7 },
  { PREGRP5 },
  { PREGRP6 },
  /* 60 */
  { "punpcklbw", MX, EM, XX },
  { "punpcklwd", MX, EM, XX },
  { "punpckldq", MX, EM, XX },
  { "packsswb", MX, EM, XX },
  { "pcmpgtb", MX, EM, XX },
  { "pcmpgtw", MX, EM, XX },
  { "pcmpgtd", MX, EM, XX },
  { "packuswb", MX, EM, XX },
  /* 68 */
  { "punpckhbw", MX, EM, XX },
  { "punpckhwd", MX, EM, XX },
  { "punpckhdq", MX, EM, XX },
  { "packssdw", MX, EM, XX },
  { PREGRP26 },
  { PREGRP24 },
  { "movd", MX, Ed, XX },
  { PREGRP19 },
  /* 70 */
  { PREGRP22 },
  { GRP10 },
  { GRP11 },
  { GRP12 },
  { "pcmpeqb", MX, EM, XX },
  { "pcmpeqw", MX, EM, XX },
  { "pcmpeqd", MX, EM, XX },
  { "emms", XX, XX, XX },
  /* 78 */
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  { PREGRP23 },
  { PREGRP20 },
  /* 80 */
  { "jo", Jv, XX, XX },
  { "jno", Jv, XX, XX },
  { "jb", Jv, XX, XX },
  { "jae", Jv, XX, XX },
  { "je", Jv, XX, XX },
  { "jne", Jv, XX, XX },
  { "jbe", Jv, XX, XX },
  { "ja", Jv, XX, XX },
  /* 88 */
  { "js", Jv, XX, XX },
  { "jns", Jv, XX, XX },
  { "jp", Jv, XX, XX },
  { "jnp", Jv, XX, XX },
  { "jl", Jv, XX, XX },
  { "jge", Jv, XX, XX },
  { "jle", Jv, XX, XX },
  { "jg", Jv, XX, XX },
  /* 90 */
  { "seto", Eb, XX, XX },
  { "setno", Eb, XX, XX },
  { "setb", Eb, XX, XX },
  { "setae", Eb, XX, XX },
  { "sete", Eb, XX, XX },
  { "setne", Eb, XX, XX },
  { "setbe", Eb, XX, XX },
  { "seta", Eb, XX, XX },
  /* 98 */
  { "sets", Eb, XX, XX },
  { "setns", Eb, XX, XX },
  { "setp", Eb, XX, XX },
  { "setnp", Eb, XX, XX },
  { "setl", Eb, XX, XX },
  { "setge", Eb, XX, XX },
  { "setle", Eb, XX, XX },
  { "setg", Eb, XX, XX },
  /* a0 */
  { "push", fs, XX, XX },
  { "pop", fs, XX, XX },
  { "cpuid", XX, XX, XX },
  { "bt", Ev, Gv, XX },
  { "shld", Ev, Gv, Ib },
  { "shld", Ev, Gv, CL },
  { "(bad)", XX, XX, XX },
  { "(bad)", XX, XX, XX },
  /* a8 */
  { "push", gs, XX, XX },
  { "pop", gs, XX, XX },
  { "rsm" , XX, XX, XX},
  { "bts", Ev, Gv, XX },
  { "shrd", Ev, Gv, Ib },
  { "shrd", Ev, Gv, CL },
  { GRP13 },
  { "imul", Gv, Ev, XX },
  /* b0 */
  { "cmpxchg", Eb, Gb, XX },
  { "cmpxchg", Ev, Gv, XX },
  { "lss", Gv, Mp, XX },
  { "btr", Ev, Gv, XX },
  { "lfs", Gv, Mp, XX },
  { "lgs", Gv, Mp, XX },
  { "movzx", Gv, Eb, XX },
  { "movzx", Gv, Ew, XX },
  /* b8 */
  { "(bad)", XX, XX, XX },
  { "ud2b", XX, XX, XX },
  { GRP8 },
  { "btc", Ev, Gv, XX },
  { "bsf", Gv, Ev, XX },
  { "bsr", Gv, Ev, XX },
  { "movsx", Gv, Eb, XX },
  { "movsx", Gv, Ew, XX },
  /* c0 */
  { "xadd", Eb, Gb, XX },
  { "xadd", Ev, Gv, XX },
  { PREGRP1 },
  { "movnti", Ev, Gv, XX },
  { "pinsrw", MX, Ed, Ib },
  { "pextrw", Gd, MS, Ib },
  { "shufpX", XM, EX, Ib },
  { GRP9 },
  /* c8 */
  { "bswap", RMeAX, XX, XX },	/* bswap doesn't support 16 bit regs */
  { "bswap", RMeCX, XX, XX },
  { "bswap", RMeDX, XX, XX },
  { "bswap", RMeBX, XX, XX },
  { "bswap", RMeSP, XX, XX },
  { "bswap", RMeBP, XX, XX },
  { "bswap", RMeSI, XX, XX },
  { "bswap", RMeDI, XX, XX },
  /* d0 */
  { "(bad)", XX, XX, XX },
  { "psrlw", MX, EM, XX },
  { "psrld", MX, EM, XX },
  { "psrlq", MX, EM, XX },
  { "paddq", MX, EM, XX },
  { "pmullw", MX, EM, XX },
  { PREGRP21 },
  { "pmovmskb", Gd, MS, XX },
  /* d8 */
  { "psubusb", MX, EM, XX },
  { "psubusw", MX, EM, XX },
  { "pminub", MX, EM, XX },
  { "pand", MX, EM, XX },
  { "paddusb", MX, EM, XX },
  { "paddusw", MX, EM, XX },
  { "pmaxub", MX, EM, XX },
  { "pandn", MX, EM, XX },
  /* e0 */
  { "pavgb", MX, EM, XX },
  { "psraw", MX, EM, XX },
  { "psrad", MX, EM, XX },
  { "pavgw", MX, EM, XX },
  { "pmulhuw", MX, EM, XX },
  { "pmulhw", MX, EM, XX },
  { PREGRP15 },
  { PREGRP25 },
  /* e8 */
  { "psubsb", MX, EM, XX },
  { "psubsw", MX, EM, XX },
  { "pminsw", MX, EM, XX },
  { "por", MX, EM, XX },
  { "paddsb", MX, EM, XX },
  { "paddsw", MX, EM, XX },
  { "pmaxsw", MX, EM, XX },
  { "pxor", MX, EM, XX },
  /* f0 */
  { "(bad)", XX, XX, XX },
  { "psllw", MX, EM, XX },
  { "pslld", MX, EM, XX },
  { "psllq", MX, EM, XX },
  { "pmuludq", MX, EM, XX },
  { "pmaddwd", MX, EM, XX },
  { "psadbw", MX, EM, XX },
  { PREGRP18 },
  /* f8 */
  { "psubb", MX, EM, XX },
  { "psubw", MX, EM, XX },
  { "psubd", MX, EM, XX },
  { "psubq", MX, EM, XX },
  { "paddb", MX, EM, XX },
  { "paddw", MX, EM, XX },
  { "paddd", MX, EM, XX },
  { "(bad)", XX, XX, XX }
};

static const unsigned char onebyte_has_modrm[256] = {
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
  /*       -------------------------------        */
  /* 00 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 00 */
  /* 10 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 10 */
  /* 20 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 20 */
  /* 30 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 30 */
  /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 40 */
  /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 50 */
  /* 60 */ 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0, /* 60 */
  /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 70 */
  /* 80 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 80 */
  /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 90 */
  /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* a0 */
  /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* b0 */
  /* c0 */ 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, /* c0 */
  /* d0 */ 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* d0 */
  /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* e0 */
  /* f0 */ 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1  /* f0 */
  /*       -------------------------------        */
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
};

static const unsigned char twobyte_has_modrm[256] = {
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
  /*       -------------------------------        */
  /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,1, /* 0f */
  /* 10 */ 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0, /* 1f */
  /* 20 */ 1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1, /* 2f */
  /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
  /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */
  /* 50 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 5f */
  /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 6f */
  /* 70 */ 1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1, /* 7f */
  /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
  /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */
  /* a0 */ 0,0,0,1,1,1,0,0,0,0,0,1,1,1,1,1, /* af */
  /* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */
  /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */
  /* d0 */ 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* df */
  /* e0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ef */
  /* f0 */ 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0  /* ff */
  /*       -------------------------------        */
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
};

static const unsigned char twobyte_uses_SSE_prefix[256] = {
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
  /*       -------------------------------        */
  /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
  /* 10 */ 1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
  /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,0,1,1,0,0, /* 2f */
  /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
  /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
  /* 50 */ 0,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* 5f */
  /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1, /* 6f */
  /* 70 */ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1, /* 7f */
  /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
  /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
  /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
  /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
  /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
  /* d0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
  /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
  /* f0 */ 0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0  /* ff */
  /*       -------------------------------        */
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
};

static char obuf[100];
static char *obufp;
static char scratchbuf[100];
static unsigned char *start_codep;
static unsigned char *insn_codep;
static unsigned char *codep;
static disassemble_info *the_info;
static int mod;
static int rm;
static int reg;
static unsigned char need_modrm;
static void oappend PARAMS ((const char *s));

/* If we are accessing mod/rm/reg without need_modrm set, then the
   values are stale.  Hitting this abort likely indicates that you
   need to update onebyte_has_modrm or twobyte_has_modrm.  */
#define MODRM_CHECK  if (!need_modrm) abort ()

static const char *names64[] = {
  "%rax","%rcx","%rdx","%rbx", "%rsp","%rbp","%rsi","%rdi",
  "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
};
static const char *names32[] = {
  "%eax","%ecx","%edx","%ebx", "%esp","%ebp","%esi","%edi",
  "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d"
};
static const char *names16[] = {
  "%ax","%cx","%dx","%bx","%sp","%bp","%si","%di",
  "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w"
};
static const char *names8[] = {
  "%al","%cl","%dl","%bl","%ah","%ch","%dh","%bh",
};
static const char *names8rex[] = {
  "%al","%cl","%dl","%bl","%spl", "%bpl", "%sil", "%dil",
  "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b"
};
static const char *names_seg[] = {
  "%es","%cs","%ss","%ds","%fs","%gs","%?","%?",
};
static const char *index16[] = {
  "%bx,%si","%bx,%di","%bp,%si","%bp,%di","%si","%di","%bp","%bx"
};

static const struct dis386 grps[][8] = {
  /* GRP1b */
  {
    { "addA",	Eb, Ib, XX },
    { "orA",	Eb, Ib, XX },
    { "adcA",	Eb, Ib, XX },
    { "sbbA",	Eb, Ib, XX },