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| author | Jan Beulich <jbeulich@suse.com> | 2019-07-16 09:31:36 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2019-07-16 09:31:36 +0200 |
| commit | dfd6917457a3030ea4a4b6356f65216fab92d0b8 (patch) | |
| tree | 564ff316e799585e35f21a1cec2393a4d5d11e4d /opcodes/i386-opc.h | |
| parent | 21df382b918888de64749e977f185c4e10a5b838 (diff) | |
| download | gdb-dfd6917457a3030ea4a4b6356f65216fab92d0b8.zip gdb-dfd6917457a3030ea4a4b6356f65216fab92d0b8.tar.gz gdb-dfd6917457a3030ea4a4b6356f65216fab92d0b8.tar.bz2 | |
x86: make RegMem an opcode modifier
... instead of an operand type bit: It's an insn property, not an
operand one. There's just one actual change to be made to the
templates: Most are now required to have the (unswapped) destination go
into ModR/M.rm, so VMOVD template needs its opcode adjusted accordingly
and its operands swapped. {,V}MOVS{S,D}, otoh, are left alone in this
regard, as otherwise generated code would differ from what we've been
producing so far (which I don't think is wanted).
Take the opportunity and add a missing IgnoreSize to pextrb (leading to
an error in 16-bit mode), and take the liberty to once again drop stray
IgnoreSize attributes from lines changed and neighboring related ones.
Diffstat (limited to 'opcodes/i386-opc.h')
| -rw-r--r-- | opcodes/i386-opc.h | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h index a2816a1..4c38e9e 100644 --- a/opcodes/i386-opc.h +++ b/opcodes/i386-opc.h @@ -437,6 +437,11 @@ enum FWait, /* quick test for string instructions */ IsString, + /* RegMem is for instructions with a modrm byte where the register + destination operand should be encoded in the mod and regmem fields. + Normally, it will be encoded in the reg field. We add a RegMem + flag to indicate that it should be encoded in the regmem field. */ + RegMem, /* quick test if branch instruction is MPX supported */ BNDPrefixOk, /* quick test if NOTRACK prefix is supported */ @@ -649,6 +654,7 @@ typedef struct i386_opcode_modifier unsigned int no_ldsuf:1; unsigned int fwait:1; unsigned int isstring:1; + unsigned int regmem:1; unsigned int bndprefixok:1; unsigned int notrackprefixok:1; unsigned int islockable:1; @@ -751,12 +757,6 @@ enum JumpAbsolute, /* String insn operand with fixed es segment */ EsSeg, - /* RegMem is for instructions with a modrm byte where the register - destination operand should be encoded in the mod and regmem fields. - Normally, it will be encoded in the reg field. We add a RegMem - flag to the destination register operand to indicate that it should - be encoded in the regmem field. */ - RegMem, /* Memory. */ Mem, /* BYTE size. */ @@ -828,7 +828,6 @@ typedef union i386_operand_type unsigned int shiftcount:1; unsigned int jumpabsolute:1; unsigned int esseg:1; - unsigned int regmem:1; unsigned int byte:1; unsigned int word:1; unsigned int dword:1; |