aboutsummaryrefslogtreecommitdiff
path: root/opcodes/i386-dis.c
diff options
context:
space:
mode:
authorAlan Modra <amodra@gmail.com>2004-06-23 15:06:58 +0000
committerAlan Modra <amodra@gmail.com>2004-06-23 15:06:58 +0000
commit1d9f512f332c8d0ef24b65c72012ddc2eea07637 (patch)
tree78da867309c0f13e5db0b680207023f099699e9c /opcodes/i386-dis.c
parent95b6a1f2689ad7e812e51b732d3808273a83a3a3 (diff)
downloadgdb-1d9f512f332c8d0ef24b65c72012ddc2eea07637.zip
gdb-1d9f512f332c8d0ef24b65c72012ddc2eea07637.tar.gz
gdb-1d9f512f332c8d0ef24b65c72012ddc2eea07637.tar.bz2
include/opcode/
* i386.h (i386_optab): Remove fildd, fistpd and fisttpd. opcodes/ * i386-dis.c (x_mode): Comment. (two_source_ops): File scope. (float_mem): Correct fisttpll and fistpll. (float_mem_mode): New table. (dofloat): Use it. (OP_E): Correct intel mode PTR output. (ptr_reg): Use open_char and close_char. (PNI_Fixup): Handle possible suffix on sidt. Use op1out etc. for operands. Set two_source_ops. gas/testsuite/ * gas/i386/prescott.s: Remove fisttpd and fisttpq. * gas/i386/prescott.d: Update.
Diffstat (limited to 'opcodes/i386-dis.c')
-rw-r--r--opcodes/i386-dis.c131
1 files changed, 106 insertions, 25 deletions
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index a71eb0c..0bcd107 100644
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -312,7 +312,7 @@ fetch_data (struct disassemble_info *info, bfd_byte *addr)
#define w_mode 3 /* word operand */
#define d_mode 4 /* double word operand */
#define q_mode 5 /* quad word operand */
-#define x_mode 6
+#define x_mode 6 /* 80 bit float operand */
#define m_mode 7 /* d_mode in 32bit, q_mode in 64bit mode. */
#define cond_jump_mode 8
#define loop_jcxz_mode 9
@@ -1881,6 +1881,7 @@ prefix_name (int pref, int sizeflag)
static char op1out[100], op2out[100], op3out[100];
static int op_ad, op_index[3];
+static int two_source_ops;
static bfd_vma op_address[3];
static bfd_vma op_riprel[3];
static bfd_vma start_pc;
@@ -1932,7 +1933,6 @@ print_insn (bfd_vma pc, disassemble_info *info)
{
const struct dis386 *dp;
int i;
- int two_source_ops;
char *first, *second, *third;
int needcomma;
unsigned char uses_SSE_prefix;
@@ -2364,7 +2364,7 @@ static const char *float_mem[] = {
"fdivr{l||l|}",
/* dd */
"fld{l||l|}",
- "fisttpll",
+ "fisttp{ll||ll|}",
"fst{l||l|}",
"fstp{l||l|}",
"frstor",
@@ -2388,7 +2388,82 @@ static const char *float_mem[] = {
"fbld",
"fild{ll||ll|}",
"fbstp",
- "fistpll",
+ "fistp{ll||ll|}",
+};
+
+static const unsigned char float_mem_mode[] = {
+ /* d8 */
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ /* d9 */
+ d_mode,
+ 0,
+ d_mode,
+ d_mode,
+ 0,
+ w_mode,
+ 0,
+ w_mode,
+ /* da */
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ /* db */
+ d_mode,
+ d_mode,
+ d_mode,
+ d_mode,
+ 0,
+ x_mode,
+ 0,
+ x_mode,
+ /* dc */
+ q_mode,
+ q_mode,
+ q_mode,
+ q_mode,
+ q_mode,
+ q_mode,
+ q_mode,
+ q_mode,
+ /* dd */
+ q_mode,
+ q_mode,
+ q_mode,
+ q_mode,
+ 0,
+ 0,
+ 0,
+ w_mode,
+ /* de */
+ w_mode,
+ w_mode,
+ w_mode,
+ w_mode,
+ w_mode,
+ w_mode,
+ w_mode,
+ w_mode,
+ /* df */
+ w_mode,
+ w_mode,
+ w_mode,
+ w_mode,
+ x_mode,
+ q_mode,
+ x_mode,
+ q_mode
};
#define ST OP_ST, 0
@@ -2567,14 +2642,11 @@ dofloat (int sizeflag)
if (mod != 3)
{
- putop (float_mem[(floatop - 0xd8) * 8 + reg], sizeflag);
+ int fp_indx = (floatop - 0xd8) * 8 + reg;
+
+ putop (float_mem[fp_indx], sizeflag);
obufp = op1out;
- if (floatop == 0xdb)
- OP_E (x_mode, sizeflag);
- else if (floatop == 0xdd)
- OP_E (d_mode, sizeflag);
- else
- OP_E (v_mode, sizeflag);
+ OP_E (float_mem_mode[fp_indx], sizeflag);
return;
}
/* Skip mod/rm byte. */
@@ -3135,9 +3207,15 @@ OP_E (int bytemode, int sizeflag)
oappend ("WORD PTR ");
break;
case v_mode:
- oappend ("DWORD PTR ");
+ if (sizeflag & DFLAG)
+ oappend ("DWORD PTR ");
+ else
+ oappend ("WORD PTR ");
break;
case d_mode:
+ oappend ("DWORD PTR ");
+ break;
+ case q_mode:
oappend ("QWORD PTR ");
break;
case m_mode:
@@ -3776,11 +3854,8 @@ static void
ptr_reg (int code, int sizeflag)
{
const char *s;
- if (intel_syntax)
- oappend ("[");
- else
- oappend ("(");
+ *obufp++ = open_char;
USED_REX (REX_MODE64);
if (rex & REX_MODE64)
{
@@ -3794,10 +3869,8 @@ ptr_reg (int code, int sizeflag)
else
s = names16[code - eAX_reg];
oappend (s);
- if (intel_syntax)
- oappend ("]");
- else
- oappend (")");
+ *obufp++ = close_char;
+ *obufp = 0;
}
static void
@@ -4162,21 +4235,29 @@ SIMD_Fixup (int extrachar, int sizeflag ATTRIBUTE_UNUSED)
static void
PNI_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag)
{
- if (mod == 3 && reg == 1)
+ if (mod == 3 && reg == 1 && rm <= 1)
{
- char *p = obuf + strlen (obuf);
-
/* Override "sidt". */
+ char *p = obuf + strlen (obuf) - 4;
+
+ /* We might have a suffix. */
+ if (*p == 'i')
+ --p;
+
if (rm)
{
/* mwait %eax,%ecx */
- strcpy (p - 4, "mwait %eax,%ecx");
+ strcpy (p, "mwait");
}
else
{
/* monitor %eax,%ecx,%edx" */
- strcpy (p - 4, "monitor %eax,%ecx,%edx");
+ strcpy (p, "monitor");
+ strcpy (op3out, names32[2]);
}
+ strcpy (op1out, names32[0]);
+ strcpy (op2out, names32[1]);
+ two_source_ops = 1;
codep++;
}