OpenE2K
/
binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

* config/tc-i386.c (md_assemble): Handle Pentium4 branch hints. 

<JumpByte, JumpDword insn output>: Remove dead code.
This commit is contained in:
Alan Modra 2001-06-06 10:23:39 +00:00
parent 3c5cdb543e
commit cb9401fc47
2 changed files with 24 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gas/ChangeLog
View File

@ -1,3 +1,8 @@
2001-06-06 Alan Modra <amodra@bigpond.net.au>
* config/tc-i386.c (md_assemble): Handle Pentium4 branch hints.
<JumpByte, JumpDword insn output>: Remove dead code.
2001-06-06 Tracy Kuhrt <Tracy.Kuhrt@microchip.com>
* as.c (parse_args): Correct option name "listing-lhs-width2".

30
gas/config/tc-i386.c
View File

@ -2720,6 +2720,13 @@ md_assemble (line)
i.prefixes -= 1;
code16 ^= CODE16;
}
/* Pentium4 branch hints. */
if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */
|| i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */)
{
prefix++;
i.prefixes--;
}
if (i.prefix[REX_PREFIX])
{
prefix++;
@ -2739,6 +2746,9 @@ md_assemble (line)
p = frag_more (prefix + 1);
if (i.prefix[DATA_PREFIX])
*p++ = DATA_PREFIX_OPCODE;
if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE
|| i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE)
*p++ = i.prefix[SEG_PREFIX];
if (i.prefix[REX_PREFIX])
*p++ = i.prefix[REX_PREFIX];
*p = i.tm.base_opcode;
@ -2769,6 +2779,13 @@ md_assemble (line)
FRAG_APPEND_1_CHAR (ADDR_PREFIX_OPCODE);
i.prefixes -= 1;
}
/* Pentium4 branch hints. */
if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */
|| i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */)
{
FRAG_APPEND_1_CHAR (i.prefix[SEG_PREFIX]);
i.prefixes--;
}
}
else
{
@ -2799,17 +2816,8 @@ md_assemble (line)
if (i.prefixes != 0 && !intel_syntax)
as_warn (_("skipping prefixes on this instruction"));
if (fits_in_unsigned_byte (i.tm.base_opcode))
{
p = frag_more (1 + size);
}
else
{
/* Opcode can be at most two bytes. */
p = frag_more (2 + size);
*p++ = (i.tm.base_opcode >> 8) & 0xff;
}
*p++ = i.tm.base_opcode & 0xff;
p = frag_more (1 + size);
*p++ = i.tm.base_opcode;
fix_new_exp (frag_now, p - frag_now->fr_literal, size,
i.op[0].disps, 1, reloc (size, 1, 1, i.reloc[0]));