#include "sysdep.h"
#include "opintl.h"
-#define MAXLEN 20
+#define MAXLEN 15
#include <setjmp.h>
static void OP_VMX (int, int);
static void OP_0fae (int, int);
static void OP_0f07 (int, int);
-static void NOP_Fixup (int, int);
+static void NOP_Fixup1 (int, int);
+static void NOP_Fixup2 (int, int);
static void OP_3DNowSuffix (int, int);
static void OP_SIMD_Suffix (int, int);
static void SIMD_Fixup (int, int);
static void BadOp (void);
static void SEG_Fixup (int, int);
static void VMX_Fixup (int, int);
+static void REP_Fixup (int, int);
struct dis_private {
/* Points to first byte not fetched. */
when we can. */
#define FWAIT_OPCODE (0x9b)
-/* Set to 1 for 64bit mode disassembly. */
-static int mode_64bit;
+enum address_mode
+{
+ mode_16bit,
+ mode_32bit,
+ mode_64bit
+};
+
+enum address_mode address_mode;
/* Flags for the prefixes for the current instruction. See below. */
static int prefixes;
struct dis_private *priv = (struct dis_private *) info->private_data;
bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer);
- status = (*info->read_memory_func) (start,
- priv->max_fetched,
- addr - priv->max_fetched,
- info);
+ if (addr <= priv->the_buffer + MAXLEN)
+ status = (*info->read_memory_func) (start,
+ priv->max_fetched,
+ addr - priv->max_fetched,
+ info);
+ else
+ status = -1;
if (status != 0)
{
/* If we did manage to read at least one byte, then
#define Eq OP_E, q_mode
#define Edq OP_E, dq_mode
#define Edqw OP_E, dqw_mode
-#define indirEv OP_indirE, branch_v_mode
+#define indirEv OP_indirE, stack_v_mode
#define indirEp OP_indirE, f_mode
+#define stackEv OP_E, stack_v_mode
#define Em OP_E, m_mode
#define Ew OP_E, w_mode
#define Ma OP_E, v_mode
#define eSI OP_IMREG, eSI_reg
#define eDI OP_IMREG, eDI_reg
#define AL OP_IMREG, al_reg
-#define AL OP_IMREG, al_reg
#define CL OP_IMREG, cl_reg
#define DL OP_IMREG, dl_reg
#define BL OP_IMREG, bl_reg
#define Sw OP_SEG, w_mode
#define Ap OP_DIR, 0
-#define Ob OP_OFF, b_mode
-#define Ob64 OP_OFF64, b_mode
-#define Ov OP_OFF, v_mode
-#define Ov64 OP_OFF64, v_mode
+#define Ob OP_OFF64, b_mode
+#define Ov OP_OFF64, v_mode
#define Xb OP_DSreg, eSI_reg
#define Xv OP_DSreg, eSI_reg
#define Yb OP_ESreg, eDI_reg
#define OPSUF OP_3DNowSuffix, 0
#define OPSIMD OP_SIMD_Suffix, 0
+/* Used handle "rep" prefix for string instructions. */
+#define Xbr REP_Fixup, eSI_reg
+#define Xvr REP_Fixup, eSI_reg
+#define Ybr REP_Fixup, eDI_reg
+#define Yvr REP_Fixup, eDI_reg
+#define indirDXr REP_Fixup, indir_dx_reg
+#define ALr REP_Fixup, al_reg
+#define eAXr REP_Fixup, eAX_reg
+
#define cond_jump_flag NULL, cond_jump_mode
#define loop_jcxz_flag NULL, loop_jcxz_mode
#define dqw_mode 12 /* registers like dq_mode, memory like w_mode. */
#define f_mode 13 /* 4- or 6-byte pointer operand */
#define const_1_mode 14
-#define branch_v_mode 15 /* v_mode for branch. */
+#define stack_v_mode 15 /* v_mode for stack-related opcodes. */
#define es_reg 100
#define cs_reg 101
#define USE_GROUPS 2
#define USE_PREFIX_USER_TABLE 3
#define X86_64_SPECIAL 4
+#define IS_3BYTE_OPCODE 5
#define FLOAT NULL, NULL, FLOATCODE, NULL, 0, NULL, 0
#define GRP7 NULL, NULL, USE_GROUPS, NULL, 14, NULL, 0
#define GRP8 NULL, NULL, USE_GROUPS, NULL, 15, NULL, 0
#define GRP9 NULL, NULL, USE_GROUPS, NULL, 16, NULL, 0
-#define GRP10 NULL, NULL, USE_GROUPS, NULL, 17, NULL, 0
-#define GRP11 NULL, NULL, USE_GROUPS, NULL, 18, NULL, 0
-#define GRP12 NULL, NULL, USE_GROUPS, NULL, 19, NULL, 0
-#define GRP13 NULL, NULL, USE_GROUPS, NULL, 20, NULL, 0
-#define GRP14 NULL, NULL, USE_GROUPS, NULL, 21, NULL, 0
+#define GRP12 NULL, NULL, USE_GROUPS, NULL, 17, NULL, 0
+#define GRP13 NULL, NULL, USE_GROUPS, NULL, 18, NULL, 0
+#define GRP14 NULL, NULL, USE_GROUPS, NULL, 19, NULL, 0
+#define GRP15 NULL, NULL, USE_GROUPS, NULL, 20, NULL, 0
+#define GRP16 NULL, NULL, USE_GROUPS, NULL, 21, NULL, 0
#define GRPAMD NULL, NULL, USE_GROUPS, NULL, 22, NULL, 0
#define GRPPADLCK1 NULL, NULL, USE_GROUPS, NULL, 23, NULL, 0
#define GRPPADLCK2 NULL, NULL, USE_GROUPS, NULL, 24, NULL, 0
#define X86_64_0 NULL, NULL, X86_64_SPECIAL, NULL, 0, NULL, 0
+#define THREE_BYTE_0 NULL, NULL, IS_3BYTE_OPCODE, NULL, 0, NULL, 0
+#define THREE_BYTE_1 NULL, NULL, IS_3BYTE_OPCODE, NULL, 1, NULL, 0
+
typedef void (*op_rtn) (int bytemode, int sizeflag);
struct dis386 {
'S' => print 'w', 'l' or 'q' if suffix_always is true
'T' => print 'q' in 64bit mode and behave as 'P' otherwise
'U' => print 'q' in 64bit mode and behave as 'Q' otherwise
+ 'V' => print 'q' in 64bit mode and behave as 'S' otherwise
'W' => print 'b' or 'w' ("w" or "de" in intel mode)
'X' => print 's', 'd' depending on data16 prefix (for XMM)
'Y' => 'q' if instruction has an REX 64bit overwrite prefix
+ 'Z' => print 'q' in 64bit mode and behave as 'L' otherwise
Many of the above letters print nothing in Intel mode. See "putop"
for the details.
{ "adcB", AL, Ib, XX },
{ "adcS", eAX, Iv, XX },
{ "push{T|}", ss, XX, XX },
- { "popT|}", ss, XX, XX },
+ { "pop{T|}", ss, XX, XX },
/* 18 */
{ "sbbB", Eb, Gb, XX },
{ "sbbS", Ev, Gv, XX },
{ "dec{S|}", RMeSI, XX, XX },
{ "dec{S|}", RMeDI, XX, XX },
/* 50 */
- { "pushS", RMrAX, XX, XX },
- { "pushS", RMrCX, XX, XX },
- { "pushS", RMrDX, XX, XX },
- { "pushS", RMrBX, XX, XX },
- { "pushS", RMrSP, XX, XX },
- { "pushS", RMrBP, XX, XX },
- { "pushS", RMrSI, XX, XX },
- { "pushS", RMrDI, XX, XX },
+ { "pushV", RMrAX, XX, XX },
+ { "pushV", RMrCX, XX, XX },
+ { "pushV", RMrDX, XX, XX },
+ { "pushV", RMrBX, XX, XX },
+ { "pushV", RMrSP, XX, XX },
+ { "pushV", RMrBP, XX, XX },
+ { "pushV", RMrSI, XX, XX },
+ { "pushV", RMrDI, XX, XX },
/* 58 */
- { "popS", RMrAX, XX, XX },
- { "popS", RMrCX, XX, XX },
- { "popS", RMrDX, XX, XX },
- { "popS", RMrBX, XX, XX },
- { "popS", RMrSP, XX, XX },
- { "popS", RMrBP, XX, XX },
- { "popS", RMrSI, XX, XX },
- { "popS", RMrDI, XX, XX },
+ { "popV", RMrAX, XX, XX },
+ { "popV", RMrCX, XX, XX },
+ { "popV", RMrDX, XX, XX },
+ { "popV", RMrBX, XX, XX },
+ { "popV", RMrSP, XX, XX },
+ { "popV", RMrBP, XX, XX },
+ { "popV", RMrSI, XX, XX },
+ { "popV", RMrDI, XX, XX },
/* 60 */
{ "pusha{P|}", XX, XX, XX },
{ "popa{P|}", XX, XX, XX },
{ "imulS", Gv, Ev, Iv },
{ "pushT", sIb, XX, XX },
{ "imulS", Gv, Ev, sIb },
- { "ins{b||b|}", Yb, indirDX, XX },
- { "ins{R||R|}", Yv, indirDX, XX },
- { "outs{b||b|}", indirDX, Xb, XX },
- { "outs{R||R|}", indirDX, Xv, XX },
+ { "ins{b||b|}", Ybr, indirDX, XX },
+ { "ins{R||R|}", Yvr, indirDX, XX },
+ { "outs{b||b|}", indirDXr, Xb, XX },
+ { "outs{R||R|}", indirDXr, Xv, XX },
/* 70 */
{ "joH", Jb, XX, cond_jump_flag },
{ "jnoH", Jb, XX, cond_jump_flag },
{ "movQ", Sv, Sw, XX },
{ "leaS", Gv, M, XX },
{ "movQ", Sw, Sv, XX },
- { "popU", Ev, XX, XX },
+ { "popU", stackEv, XX, XX },
/* 90 */
- { "nop", NOP_Fixup, 0, XX, XX },
+ { "xchgS", NOP_Fixup1, eAX_reg, NOP_Fixup2, eAX_reg, XX },
{ "xchgS", RMeCX, eAX, XX },
{ "xchgS", RMeDX, eAX, XX },
{ "xchgS", RMeBX, eAX, XX },
{ "sahf{|}", XX, XX, XX },
{ "lahf{|}", XX, XX, XX },
/* a0 */
- { "movB", AL, Ob64, XX },
- { "movS", eAX, Ov64, XX },
- { "movB", Ob64, AL, XX },
- { "movS", Ov64, eAX, XX },
- { "movs{b||b|}", Yb, Xb, XX },
- { "movs{R||R|}", Yv, Xv, XX },
+ { "movB", AL, Ob, XX },
+ { "movS", eAX, Ov, XX },
+ { "movB", Ob, AL, XX },
+ { "movS", Ov, eAX, XX },
+ { "movs{b||b|}", Ybr, Xb, XX },
+ { "movs{R||R|}", Yvr, Xv, XX },
{ "cmps{b||b|}", Xb, Yb, XX },
{ "cmps{R||R|}", Xv, Yv, XX },
/* a8 */
{ "testB", AL, Ib, XX },
{ "testS", eAX, Iv, XX },
- { "stosB", Yb, AL, XX },
- { "stosS", Yv, eAX, XX },
- { "lodsB", AL, Xb, XX },
- { "lodsS", eAX, Xv, XX },
+ { "stosB", Ybr, AL, XX },
+ { "stosS", Yvr, eAX, XX },
+ { "lodsB", ALr, Xb, XX },
+ { "lodsS", eAXr, Xv, XX },
{ "scasB", AL, Yb, XX },
{ "scasS", eAX, Yv, XX },
/* b0 */
{ PREGRP31 },
{ "movhpX", EX, XM, SIMD_Fixup, 'l' },
/* 18 */
- { GRP14 },
- { "(bad)", XX, XX, XX },
+ { GRP16 },
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
+ { "nopQ", Ev, XX, XX },
/* 20 */
- { "movL", Rm, Cm, XX },
- { "movL", Rm, Dm, XX },
- { "movL", Cm, Rm, XX },
- { "movL", Dm, Rm, XX },
+ { "movZ", Rm, Cm, XX },
+ { "movZ", Rm, Dm, XX },
+ { "movZ", Cm, Rm, XX },
+ { "movZ", Dm, Rm, XX },
{ "movL", Rd, Td, XX },
{ "(bad)", XX, XX, XX },
{ "movL", Td, Rd, XX },
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
/* 38 */
+ { THREE_BYTE_0 },
{ "(bad)", XX, XX, XX },
- { "(bad)", XX, XX, XX },
- { "(bad)", XX, XX, XX },
+ { THREE_BYTE_1 },
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ PREGRP19 },
/* 70 */
{ PREGRP22 },
- { GRP10 },
- { GRP11 },
{ GRP12 },
+ { GRP13 },
+ { GRP14 },
{ "pcmpeqb", MX, EM, XX },
{ "pcmpeqw", MX, EM, XX },
{ "pcmpeqd", MX, EM, XX },
{ "btsS", Ev, Gv, XX },
{ "shrdS", Ev, Gv, Ib },
{ "shrdS", Ev, Gv, CL },
- { GRP13 },
+ { GRP15 },
{ "imulS", Gv, Ev, XX },
/* b0 */
{ "cmpxchgB", Eb, Gb, XX },
/* 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 */
+ /* 10 */ 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1, /* 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 */
+ /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 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 */
/* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
/* 10 */ 1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0, /* 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 */
+ /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 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 */
{ "JcallT", indirEp, XX, XX },
{ "jmpT", indirEv, XX, XX },
{ "JjmpT", indirEp, XX, XX },
- { "pushU", Ev, XX, XX },
+ { "pushU", stackEv, XX, XX },
{ "(bad)", XX, XX, XX },
},
/* GRP6 */
},
/* GRP7 */
{
- { "sgdtIQ", VMX_Fixup, 0, XX, XX },
- { "sidtIQ", PNI_Fixup, 0, XX, XX },
+ { "sgdt{Q|IQ||}", VMX_Fixup, 0, XX, XX },
+ { "sidt{Q|IQ||}", PNI_Fixup, 0, XX, XX },
{ "lgdt{Q|Q||}", M, XX, XX },
{ "lidt{Q|Q||}", SVME_Fixup, 0, XX, XX },
{ "smswQ", Ev, XX, XX },
{ "", VM, XX, XX }, /* See OP_VMX. */
{ "vmptrst", Eq, XX, XX },
},
- /* GRP10 */
+ /* GRP12 */
{
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ "psllw", MS, Ib, XX },
{ "(bad)", XX, XX, XX },
},
- /* GRP11 */
+ /* GRP13 */
{
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ "pslld", MS, Ib, XX },
{ "(bad)", XX, XX, XX },
},
- /* GRP12 */
+ /* GRP14 */
{
{ "(bad)", XX, XX, XX },
{ "(bad)", XX, XX, XX },
{ "psllq", MS, Ib, XX },
{ "pslldq", MS, Ib, XX },
},
- /* GRP13 */
+ /* GRP15 */
{
{ "fxsave", Ev, XX, XX },
{ "fxrstor", Ev, XX, XX },
{ "mfence", OP_0fae, 0, XX, XX },
{ "clflush", OP_0fae, 0, XX, XX },
},
- /* GRP14 */
+ /* GRP16 */
{
{ "prefetchnta", Ev, XX, XX },
{ "prefetcht0", Ev, XX, XX },
},
};
+static const struct dis386 three_byte_table[][32] = {
+ /* THREE_BYTE_0 */
+ {
+ { "pshufb", MX, EM, XX },
+ { "phaddw", MX, EM, XX },
+ { "phaddd", MX, EM, XX },
+ { "phaddsw", MX, EM, XX },
+ { "pmaddubsw", MX, EM, XX },
+ { "phsubw", MX, EM, XX },
+ { "phsubd", MX, EM, XX },
+ { "phsubsw", MX, EM, XX },
+ { "psignb", MX, EM, XX },
+ { "psignw", MX, EM, XX },
+ { "psignd", MX, EM, XX },
+ { "pmulhrsw", MX, EM, 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 },
+ { "(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 },
+ { "(bad)", XX, XX, XX },
+ { "pabsb", MX, EM, XX },
+ { "pabsw", MX, EM, XX },
+ { "pabsd", MX, EM, XX },
+ { "(bad)", XX, XX, XX }
+ },
+ /* THREE_BYTE_1 */
+ {
+ { "(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 },
+ { "(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 },
+ { "palignr", MX, EM, Ib },
+ { "(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 },
+ { "(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 }
+ },
+};
+
#define INTERNAL_DISASSEMBLER_ERROR _("<internal disassembler error>")
static void
case 0x4d:
case 0x4e:
case 0x4f:
- if (mode_64bit)
+ if (address_mode == mode_64bit)
newrex = *codep;
else
return;
/* fwait is really an instruction. If there are prefixes
before the fwait, they belong to the fwait, *not* to the
following instruction. */
- if (prefixes)
+ if (prefixes || rex)
{
prefixes |= PREFIX_FWAIT;
codep++;
/* Rex is ignored when followed by another prefix. */
if (rex)
{
- oappend (prefix_name (rex, 0));
- oappend (" ");
+ rex_used = rex;
+ return;
}
rex = newrex;
codep++;
case 0x66:
return (sizeflag & DFLAG) ? "data16" : "data32";
case 0x67:
- if (mode_64bit)
+ if (address_mode == mode_64bit)
return (sizeflag & AFLAG) ? "addr32" : "addr64";
else
return (sizeflag & AFLAG) ? "addr16" : "addr32";
const char *p;
struct dis_private priv;
- mode_64bit = (info->mach == bfd_mach_x86_64_intel_syntax
- || info->mach == bfd_mach_x86_64);
+ if (info->mach == bfd_mach_x86_64_intel_syntax
+ || info->mach == bfd_mach_x86_64)
+ address_mode = mode_64bit;
+ else
+ address_mode = mode_32bit;
if (intel_syntax == (char) -1)
intel_syntax = (info->mach == bfd_mach_i386_i386_intel_syntax
{
if (strncmp (p, "x86-64", 6) == 0)
{
- mode_64bit = 1;
+ address_mode = mode_64bit;
priv.orig_sizeflag = AFLAG | DFLAG;
}
else if (strncmp (p, "i386", 4) == 0)
{
- mode_64bit = 0;
+ address_mode = mode_32bit;
priv.orig_sizeflag = AFLAG | DFLAG;
}
else if (strncmp (p, "i8086", 5) == 0)
{
- mode_64bit = 0;
+ address_mode = mode_16bit;
priv.orig_sizeflag = 0;
}
else if (strncmp (p, "intel", 5) == 0)
FETCH_DATA (info, codep + 1);
two_source_ops = (*codep == 0x62) || (*codep == 0xc8);
- if ((prefixes & PREFIX_FWAIT)
- && ((*codep < 0xd8) || (*codep > 0xdf)))
+ if (((prefixes & PREFIX_FWAIT)
+ && ((*codep < 0xd8) || (*codep > 0xdf)))
+ || (rex && rex_used))
{
const char *name;
- /* fwait not followed by floating point instruction. Print the
- first prefix, which is probably fwait itself. */
+ /* fwait not followed by floating point instruction, or rex followed
+ by other prefixes. Print the first prefix. */
name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
if (name == NULL)
name = INTERNAL_DISASSEMBLER_ERROR;
sizeflag ^= AFLAG;
if (dp->bytemode3 != loop_jcxz_mode || intel_syntax)
{
- if ((sizeflag & AFLAG) || mode_64bit)
+ if ((sizeflag & AFLAG) || address_mode == mode_64bit)
oappend ("addr32 ");
else
oappend ("addr16 ");
}
}
- if (need_modrm)
+ if (dp->name == NULL && dp->bytemode1 == IS_3BYTE_OPCODE)
+ {
+ FETCH_DATA (info, codep + 2);
+ dp = &three_byte_table[dp->bytemode2][*codep++];
+ mod = (*codep >> 6) & 3;
+ reg = (*codep >> 3) & 7;
+ rm = *codep & 7;
+ }
+ else if (need_modrm)
{
FETCH_DATA (info, codep + 1);
mod = (*codep >> 6) & 3;
break;
case X86_64_SPECIAL:
- dp = &x86_64_table[dp->bytemode2][mode_64bit];
+ index = address_mode == mode_64bit ? 1 : 0;
+ dp = &x86_64_table[dp->bytemode2][index];
break;
default:
putop (float_mem[fp_indx], sizeflag);
obufp = op1out;
+ op_ad = 2;
OP_E (float_mem_mode[fp_indx], sizeflag);
return;
}
putop (dp->name, sizeflag);
obufp = op1out;
+ op_ad = 2;
if (dp->op1)
(*dp->op1) (dp->bytemode1, sizeflag);
+
obufp = op2out;
+ op_ad = 1;
if (dp->op2)
(*dp->op2) (dp->bytemode2, sizeflag);
}
static void
OP_ST (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
{
- oappend ("%st");
+ oappend ("%st" + intel_syntax);
}
static void
alt = 0;
if (intel_syntax)
alt += 1;
- if (mode_64bit)
+ if (address_mode == mode_64bit)
alt += 2;
while (alt != 0)
{
}
break;
case 'E': /* For jcxz/jecxz */
- if (mode_64bit)
+ if (address_mode == mode_64bit)
{
if (sizeflag & AFLAG)
*obufp++ = 'r';
if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS))
{
if (sizeflag & AFLAG)
- *obufp++ = mode_64bit ? 'q' : 'l';
+ *obufp++ = address_mode == mode_64bit ? 'q' : 'l';
else
- *obufp++ = mode_64bit ? 'l' : 'w';
+ *obufp++ = address_mode == mode_64bit ? 'l' : 'w';
used_prefixes |= (prefixes & PREFIX_ADDR);
}
break;
break;
*obufp++ = 'l';
break;
+ case 'Z':
+ if (intel_syntax)
+ break;
+ if (address_mode == mode_64bit && (sizeflag & SUFFIX_ALWAYS))
+ {
+ *obufp++ = 'q';
+ break;
+ }
+ /* Fall through. */
case 'L':
if (intel_syntax)
break;
case 'T':
if (intel_syntax)
break;
- if (mode_64bit)
+ if (address_mode == mode_64bit && (sizeflag & DFLAG))
{
*obufp++ = 'q';
break;
*obufp++ = 'l';
else
*obufp++ = 'w';
- used_prefixes |= (prefixes & PREFIX_DATA);
}
+ used_prefixes |= (prefixes & PREFIX_DATA);
}
break;
case 'U':
if (intel_syntax)
break;
- if (mode_64bit)
+ if (address_mode == mode_64bit && (sizeflag & DFLAG))
{
- *obufp++ = 'q';
+ if (mod != 3 || (sizeflag & SUFFIX_ALWAYS))
+ *obufp++ = 'q';
break;
}
/* Fall through. */
*obufp++ = intel_syntax ? 'd' : 'l';
else
*obufp++ = 'w';
- used_prefixes |= (prefixes & PREFIX_DATA);
}
+ used_prefixes |= (prefixes & PREFIX_DATA);
}
break;
case 'R':
if (!(rex & REX_MODE64))
used_prefixes |= (prefixes & PREFIX_DATA);
break;
+ case 'V':
+ if (intel_syntax)
+ break;
+ if (address_mode == mode_64bit && (sizeflag & DFLAG))
+ {
+ if (sizeflag & SUFFIX_ALWAYS)
+ *obufp++ = 'q';
+ break;
+ }
+ /* Fall through. */
case 'S':
if (intel_syntax)
break;
static void
print_operand_value (char *buf, int hex, bfd_vma disp)
{
- if (mode_64bit)
+ if (address_mode == mode_64bit)
{
if (hex)
{
}
}
+static void
+intel_operand_size (int bytemode, int sizeflag)
+{
+ switch (bytemode)
+ {
+ case b_mode:
+ oappend ("BYTE PTR ");
+ break;
+ case w_mode:
+ case dqw_mode:
+ oappend ("WORD PTR ");
+ break;
+ case stack_v_mode:
+ if (address_mode == mode_64bit && (sizeflag & DFLAG))
+ {
+ oappend ("QWORD PTR ");
+ used_prefixes |= (prefixes & PREFIX_DATA);
+ break;
+ }
+ /* FALLTHRU */
+ case v_mode:
+ case dq_mode:
+ USED_REX (REX_MODE64);
+ if (rex & REX_MODE64)
+ oappend ("QWORD PTR ");
+ else if ((sizeflag & DFLAG) || bytemode == dq_mode)
+ oappend ("DWORD PTR ");
+ else
+ oappend ("WORD PTR ");
+ used_prefixes |= (prefixes & PREFIX_DATA);
+ break;
+ case d_mode:
+ oappend ("DWORD PTR ");
+ break;
+ case q_mode:
+ oappend ("QWORD PTR ");
+ break;
+ case m_mode:
+ if (address_mode == mode_64bit)
+ oappend ("QWORD PTR ");
+ else
+ oappend ("DWORD PTR ");
+ break;
+ case f_mode:
+ if (sizeflag & DFLAG)
+ oappend ("FWORD PTR ");
+ else
+ oappend ("DWORD PTR ");
+ used_prefixes |= (prefixes & PREFIX_DATA);
+ break;
+ case t_mode:
+ oappend ("TBYTE PTR ");
+ break;
+ case x_mode:
+ oappend ("XMMWORD PTR ");
+ break;
+ default:
+ break;
+ }
+}
+
static void
OP_E (int bytemode, int sizeflag)
{
oappend (names64[rm + add]);
break;
case m_mode:
- if (mode_64bit)
+ if (address_mode == mode_64bit)
oappend (names64[rm + add]);
else
oappend (names32[rm + add]);
break;
- case branch_v_mode:
- if (mode_64bit)
- oappend (names64[rm + add]);
- else
+ case stack_v_mode:
+ if (address_mode == mode_64bit && (sizeflag & DFLAG))
{
- if ((sizeflag & DFLAG) || bytemode != branch_v_mode)
- oappend (names32[rm + add]);
- else
- oappend (names16[rm + add]);
+ oappend (names64[rm + add]);
used_prefixes |= (prefixes & PREFIX_DATA);
+ break;
}
- break;
+ bytemode = v_mode;
+ /* FALLTHRU */
case v_mode:
case dq_mode:
case dqw_mode:
}
disp = 0;
+ if (intel_syntax)
+ intel_operand_size (bytemode, sizeflag);
append_seg ();
- if ((sizeflag & AFLAG) || mode_64bit) /* 32 bit address mode */
+ if ((sizeflag & AFLAG) || address_mode == mode_64bit) /* 32 bit address mode */
{
int havesib;
int havebase;
havesib = 1;
FETCH_DATA (the_info, codep + 1);
index = (*codep >> 3) & 7;
- if (mode_64bit || index != 0x4)
+ if (address_mode == mode_64bit || index != 0x4)
/* When INDEX == 0x4 in 32 bit mode, SCALE is ignored. */
scale = (*codep >> 6) & 3;
base = *codep & 7;
if ((base & 7) == 5)
{
havebase = 0;
- if (mode_64bit && !havesib)
+ if (address_mode == mode_64bit && !havesib)
riprel = 1;
disp = get32s ();
}
if (havebase || (havesib && (index != 4 || scale != 0)))
{
- if (intel_syntax)
- {
- switch (bytemode)
- {
- case b_mode:
- oappend ("BYTE PTR ");
- break;
- case w_mode:
- case dqw_mode:
- oappend ("WORD PTR ");
- break;
- case branch_v_mode:
- case v_mode:
- case dq_mode:
- USED_REX (REX_MODE64);
- if (rex & REX_MODE64)
- oappend ("QWORD PTR ");
- else if ((sizeflag & DFLAG) || bytemode == dq_mode)
- oappend ("DWORD PTR ");
- else
- oappend ("WORD PTR ");
- used_prefixes |= (prefixes & PREFIX_DATA);
- break;
- case d_mode:
- oappend ("DWORD PTR ");
- break;
- case q_mode:
- oappend ("QWORD PTR ");
- break;
- case m_mode:
- if (mode_64bit)
- oappend ("QWORD PTR ");
- else
- oappend ("DWORD PTR ");
- break;
- case f_mode:
- if (sizeflag & DFLAG)
- {
- used_prefixes |= (prefixes & PREFIX_DATA);
- oappend ("FWORD PTR ");
- }
- else
- oappend ("DWORD PTR ");
- break;
- case t_mode:
- oappend ("TBYTE PTR ");
- break;
- case x_mode:
- oappend ("XMMWORD PTR ");
- break;
- default:
- break;
- }
- }
*obufp++ = open_char;
if (intel_syntax && riprel)
oappend ("rip + ");
*obufp = '\0';
if (havebase)
- oappend (mode_64bit && (sizeflag & AFLAG)
+ oappend (address_mode == mode_64bit && (sizeflag & AFLAG)
? names64[base] : names32[base]);
if (havesib)
{
*obufp++ = separator_char;
*obufp = '\0';
}
- oappend (mode_64bit && (sizeflag & AFLAG)
+ oappend (address_mode == mode_64bit && (sizeflag & AFLAG)
? names64[index] : names32[index]);
}
if (scale != 0 || (!intel_syntax && index != 4))
used_prefixes |= (prefixes & PREFIX_DATA);
break;
case m_mode:
- if (mode_64bit)
+ if (address_mode == mode_64bit)
oappend (names64[reg + add]);
else
oappend (names32[reg + add]);
set_op (bfd_vma op, int riprel)
{
op_index[op_ad] = op_ad;
- if (mode_64bit)
+ if (address_mode == mode_64bit)
{
op_address[op_ad] = op;
op_riprel[op_ad] = riprel;
break;
case rAX_reg: case rCX_reg: case rDX_reg: case rBX_reg:
case rSP_reg: case rBP_reg: case rSI_reg: case rDI_reg:
- if (mode_64bit)
+ if (address_mode == mode_64bit && (sizeflag & DFLAG))
{
s = names64[code - rAX_reg + add];
break;
mask = 0xff;
break;
case q_mode:
- if (mode_64bit)
+ if (address_mode == mode_64bit)
{
op = get32s ();
break;
bfd_signed_vma op;
bfd_signed_vma mask = -1;
- if (!mode_64bit)
+ if (address_mode != mode_64bit)
{
OP_I (bytemode, sizeflag);
return;
disp -= 0x100;
break;
case v_mode:
- if (sizeflag & DFLAG)
+ if ((sizeflag & DFLAG) || (rex & REX_MODE64))
disp = get32s ();
else
{
}
used_prefixes |= (prefixes & PREFIX_DATA);
if (intel_syntax)
- sprintf (scratchbuf, "0x%x,0x%x", seg, offset);
+ sprintf (scratchbuf, "0x%x:0x%x", seg, offset);
else
sprintf (scratchbuf, "$0x%x,$0x%x", seg, offset);
oappend (scratchbuf);
}
static void
-OP_OFF (int bytemode ATTRIBUTE_UNUSED, int sizeflag)
+OP_OFF (int bytemode, int sizeflag)
{
bfd_vma off;
+ if (intel_syntax && (sizeflag & SUFFIX_ALWAYS))
+ intel_operand_size (bytemode, sizeflag);
append_seg ();
- if ((sizeflag & AFLAG) || mode_64bit)
+ if ((sizeflag & AFLAG) || address_mode == mode_64bit)
off = get32 ();
else
off = get16 ();
}
static void
-OP_OFF64 (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
+OP_OFF64 (int bytemode, int sizeflag)
{
bfd_vma off;
- if (!mode_64bit)
+ if (address_mode != mode_64bit)
{
OP_OFF (bytemode, sizeflag);
return;
}
+ if (intel_syntax && (sizeflag & SUFFIX_ALWAYS))
+ intel_operand_size (bytemode, sizeflag);
append_seg ();
off = get64 ();
*obufp++ = open_char;
used_prefixes |= (prefixes & PREFIX_ADDR);
- if (mode_64bit)
+ if (address_mode == mode_64bit)
{
if (!(sizeflag & AFLAG))
s = names32[code - eAX_reg];
OP_ESreg (int code, int sizeflag)
{
if (intel_syntax)
- {
- if (codep[-1] & 1)
- {
- USED_REX (REX_MODE64);
- used_prefixes |= (prefixes & PREFIX_DATA);
- if (rex & REX_MODE64)
- oappend ("QWORD PTR ");
- else if ((sizeflag & DFLAG))
- oappend ("DWORD PTR ");
- else
- oappend ("WORD PTR ");
- }
- else
- oappend ("BYTE PTR ");
- }
-
+ intel_operand_size (codep[-1] & 1 ? v_mode : b_mode, sizeflag);
oappend ("%es:" + intel_syntax);
ptr_reg (code, sizeflag);
}
OP_DSreg (int code, int sizeflag)
{
if (intel_syntax)
- {
- if (codep[-1] != 0xd7 && (codep[-1] & 1))
- {
- USED_REX (REX_MODE64);
- used_prefixes |= (prefixes & PREFIX_DATA);
- if (rex & REX_MODE64)
- oappend ("QWORD PTR ");
- else if ((sizeflag & DFLAG))
- oappend ("DWORD PTR ");
- else
- oappend ("WORD PTR ");
- }
- else
- oappend ("BYTE PTR ");
- }
-
+ intel_operand_size (codep[-1] != 0xd7 && (codep[-1] & 1)
+ ? v_mode
+ : b_mode,
+ sizeflag);
if ((prefixes
& (PREFIX_CS
| PREFIX_DS
USED_REX (REX_EXTX);
add = 8;
}
- else if (!mode_64bit && (prefixes & PREFIX_LOCK))
+ else if (address_mode != mode_64bit && (prefixes & PREFIX_LOCK))
{
used_prefixes |= PREFIX_LOCK;
add = 8;
OP_E (bytemode, sizeflag);
}
+/* NOP is an alias of "xchg %ax,%ax" in 16bit mode, "xchg %eax,%eax" in
+ 32bit mode and "xchg %rax,%rax" in 64bit mode. NOP with REPZ prefix
+ is called PAUSE. We display "xchg %ax,%ax" instead of "data16 nop".
+ */
+
static void
-NOP_Fixup (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
+NOP_Fixup1 (int bytemode, int sizeflag)
{
- /* NOP with REPZ prefix is called PAUSE. */
if (prefixes == PREFIX_REPZ)
strcpy (obuf, "pause");
+ else if (prefixes == PREFIX_DATA
+ || ((rex & REX_MODE64) && rex != 0x48))
+ OP_REG (bytemode, sizeflag);
+ else
+ strcpy (obuf, "nop");
+}
+
+static void
+NOP_Fixup2 (int bytemode, int sizeflag)
+{
+ if (prefixes == PREFIX_DATA
+ || ((rex & REX_MODE64) && rex != 0x48))
+ OP_IMREG (bytemode, sizeflag);
}
static const char *const Suffix3DNow[] = {
if (mod == 3 && reg == 1 && rm <= 1)
{
/* Override "sidt". */
- char *p = obuf + strlen (obuf) - 4;
+ size_t olen = strlen (obuf);
+ char *p = obuf + olen - 4;
+ const char **names = (address_mode == mode_64bit
+ ? names64 : names32);
/* We might have a suffix when disassembling with -Msuffix. */
if (*p == 'i')
--p;
+ /* Remove "addr16/addr32" if we aren't in Intel mode. */
+ if (!intel_syntax
+ && (prefixes & PREFIX_ADDR)
+ && olen >= (4 + 7)
+ && *(p - 1) == ' '
+ && strncmp (p - 7, "addr", 4) == 0
+ && (strncmp (p - 3, "16", 2) == 0
+ || strncmp (p - 3, "32", 2) == 0))
+ p -= 7;
+
if (rm)
{
/* mwait %eax,%ecx */
strcpy (p, "mwait");
if (!intel_syntax)
- strcpy (op1out, names32[0]);
+ strcpy (op1out, names[0]);
}
else
{
strcpy (p, "monitor");
if (!intel_syntax)
{
- if (!mode_64bit)
- strcpy (op1out, names32[0]);
- else if (!(prefixes & PREFIX_ADDR))
- strcpy (op1out, names64[0]);
+ const char **op1_names;
+ if (!(prefixes & PREFIX_ADDR))
+ op1_names = (address_mode == mode_16bit
+ ? names16 : names);
else
{
- strcpy (op1out, names32[0]);
+ op1_names = (address_mode != mode_32bit
+ ? names32 : names16);
used_prefixes |= PREFIX_ADDR;
}
- strcpy (op3out, names32[2]);
+ strcpy (op1out, op1_names[0]);
+ strcpy (op3out, names[2]);
}
}
if (!intel_syntax)
{
- strcpy (op2out, names32[1]);
+ strcpy (op2out, names[1]);
two_source_ops = 1;
}
case 0xda:
case 0xdb:
*obufp++ = open_char;
- if (mode_64bit || (sizeflag & AFLAG))
+ if (address_mode == mode_64bit || (sizeflag & AFLAG))
alt = names32[0];
else
alt = names16[0];
strcpy (obuf, "vmptrld");
OP_E (bytemode, sizeflag);
}
+
+static void
+REP_Fixup (int bytemode, int sizeflag)
+{
+ /* The 0xf3 prefix should be displayed as "rep" for ins, outs, movs,
+ lods and stos. */
+ size_t ilen = 0;
+
+ if (prefixes & PREFIX_REPZ)
+ switch (*insn_codep)
+ {
+ case 0x6e: /* outsb */
+ case 0x6f: /* outsw/outsl */
+ case 0xa4: /* movsb */
+ case 0xa5: /* movsw/movsl/movsq */
+ if (!intel_syntax)
+ ilen = 5;
+ else
+ ilen = 4;
+ break;
+ case 0xaa: /* stosb */
+ case 0xab: /* stosw/stosl/stosq */
+ case 0xac: /* lodsb */
+ case 0xad: /* lodsw/lodsl/lodsq */
+ if (!intel_syntax && (sizeflag & SUFFIX_ALWAYS))
+ ilen = 5;
+ else
+ ilen = 4;
+ break;
+ case 0x6c: /* insb */
+ case 0x6d: /* insl/insw */
+ if (!intel_syntax)
+ ilen = 4;
+ else
+ ilen = 3;
+ break;
+ default:
+ abort ();
+ break;
+ }
+
+ if (ilen != 0)
+ {
+ size_t olen;
+ char *p;
+
+ olen = strlen (obuf);
+ p = obuf + olen - ilen - 1 - 4;
+ /* Handle "repz [addr16|addr32]". */
+ if ((prefixes & PREFIX_ADDR))
+ p -= 1 + 6;
+
+ memmove (p + 3, p + 4, olen - (p + 3 - obuf));
+ }
+
+ switch (bytemode)
+ {
+ case al_reg:
+ case eAX_reg:
+ case indir_dx_reg:
+ OP_IMREG (bytemode, sizeflag);
+ break;
+ case eDI_reg:
+ OP_ESreg (bytemode, sizeflag);
+ break;
+ case eSI_reg:
+ OP_DSreg (bytemode, sizeflag);
+ break;
+ default:
+ abort ();
+ break;
+ }
+}
projects / deliverable / binutils-gdb.git / blobdiff