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| 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 /gas/config/tc-i386.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 'gas/config/tc-i386.c')
| -rw-r--r-- | gas/config/tc-i386.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 37c4073..b116ee4 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -2868,6 +2868,13 @@ build_modrm_byte () if ((i.op[source].regs->reg_flags & RegRex) != 0) i.rex |= REX_EXTX; } + if (flag_code != CODE_64BIT && (i.rex & (REX_EXTX | REX_EXTZ))) + { + if (!((i.types[0] | i.types[1]) & Control)) + abort (); + i.rex &= ~(REX_EXTX | REX_EXTZ); + add_prefix (LOCK_PREFIX_OPCODE); + } } else { /* If it's not 2 reg operands... */ @@ -5040,6 +5047,7 @@ parse_register (reg_string, end_op) if (r != NULL && ((r->reg_flags & (RegRex64 | RegRex)) | (r->reg_type & Reg64)) != 0 + && (r->reg_type != Control || !(cpu_arch_flags & CpuSledgehammer)) && flag_code != CODE_64BIT) return (const reg_entry *) NULL; |