diff options
| author | Jan Beulich <jbeulich@novell.com> | 2005-03-02 08:01:32 +0000 |
|---|---|---|
| committer | Jan Beulich <jbeulich@novell.com> | 2005-03-02 08:01:32 +0000 |
| commit | c4a530c52970c9fdd3a6c0315503a058e132f073 (patch) | |
| tree | 38ab01569199e6e441eb6b66bdae68498dc60af6 /opcodes/i386-dis.c | |
| parent | 167c3097b24047b63c0565395014132d25391419 (diff) | |
| download | gdb-c4a530c52970c9fdd3a6c0315503a058e132f073.zip gdb-c4a530c52970c9fdd3a6c0315503a058e132f073.tar.gz gdb-c4a530c52970c9fdd3a6c0315503a058e132f073.tar.bz2 | |
gas/
2005-03-02 Jan Beulich <jbeulich@novell.com>
* config/tc-i386.c (build_modrm_byte): Add lock prefix for cr8...15
accesses.
(parse_register): Allow cr8...15 in all modes.
gas/testsuite/
2005-03-02 Jan Beulich <jbeulich@novell.com>
* gas/i386/cr-err.[ls]: New.
* gas/i386/crx.[ds]: New.
* gas/i386/i386.exp: Run new tests.
opcodes/
2005-03-02 Jan Beulich <jbeulich@novell.com>
* i386-dis.c (print_insn): Suppress lock prefix printing for cr8...15
accesses.
(OP_C): Consider lock prefix in non-64-bit modes.
Diffstat (limited to 'opcodes/i386-dis.c')
| -rw-r--r-- | opcodes/i386-dis.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 0e9ce49..51204ba 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -1956,7 +1956,7 @@ print_insn (bfd_vma pc, disassemble_info *info) int i; char *first, *second, *third; int needcomma; - unsigned char uses_SSE_prefix; + unsigned char uses_SSE_prefix, uses_LOCK_prefix; int sizeflag; const char *p; struct dis_private priv; @@ -2128,12 +2128,14 @@ print_insn (bfd_vma pc, disassemble_info *info) dp = &dis386_twobyte[*++codep]; need_modrm = twobyte_has_modrm[*codep]; uses_SSE_prefix = twobyte_uses_SSE_prefix[*codep]; + uses_LOCK_prefix = (*codep & ~0x02) == 0x20; } else { dp = &dis386[*codep]; need_modrm = onebyte_has_modrm[*codep]; uses_SSE_prefix = 0; + uses_LOCK_prefix = 0; } codep++; @@ -2147,7 +2149,7 @@ print_insn (bfd_vma pc, disassemble_info *info) oappend ("repnz "); used_prefixes |= PREFIX_REPNZ; } - if (prefixes & PREFIX_LOCK) + if (!uses_LOCK_prefix && (prefixes & PREFIX_LOCK)) { oappend ("lock "); used_prefixes |= PREFIX_LOCK; @@ -3993,9 +3995,16 @@ static void OP_C (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { int add = 0; - USED_REX (REX_EXTX); if (rex & REX_EXTX) - add = 8; + { + USED_REX (REX_EXTX); + add = 8; + } + else if (!mode_64bit && (prefixes & PREFIX_LOCK)) + { + used_prefixes |= PREFIX_LOCK; + add = 8; + } sprintf (scratchbuf, "%%cr%d", reg + add); oappend (scratchbuf + intel_syntax); } |