diff options
Diffstat (limited to 'lib/Target/X86')
| -rw-r--r-- | lib/Target/X86/AsmParser/X86AsmParser.cpp | 7 | ||||
| -rw-r--r-- | lib/Target/X86/X86InstrControl.td | 5 | ||||
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 40 |
3 files changed, 51 insertions, 1 deletions
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp index 7dbd221..c9e2107 100644 --- a/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -1082,6 +1082,13 @@ ParseInstruction(StringRef Name, SMLoc NameLoc, Operands[0] = X86Operand::CreateToken("xor", NameLoc); } + // FIXME: Hack to handle recognize "aa[dm]" -> "aa[dm] $0xA". + if ((Name.startswith("aad") || Name.startswith("aam")) && + Operands.size() == 1) { + const MCExpr *A = MCConstantExpr::Create(0xA, getParser().getContext()); + Operands.push_back(X86Operand::CreateImm(A, NameLoc, NameLoc)); + } + return false; } diff --git a/lib/Target/X86/X86InstrControl.td b/lib/Target/X86/X86InstrControl.td index 0011384..c100bcb 100644 --- a/lib/Target/X86/X86InstrControl.td +++ b/lib/Target/X86/X86InstrControl.td @@ -24,10 +24,15 @@ let isTerminator = 1, isReturn = 1, isBarrier = 1, def RETI : Ii16<0xC2, RawFrm, (outs), (ins i16imm:$amt, variable_ops), "ret\t$amt", [(X86retflag timm:$amt)]>; + def RETIW : Ii16<0xC2, RawFrm, (outs), (ins i16imm:$amt, variable_ops), + "retw\t$amt", + [(X86retflag timm:$amt)]>, OpSize; def LRET : I <0xCB, RawFrm, (outs), (ins), "lret", []>; def LRETI : Ii16<0xCA, RawFrm, (outs), (ins i16imm:$amt), "lret\t$amt", []>; + def LRETIW : Ii16<0xCA, RawFrm, (outs), (ins i16imm:$amt), + "lretw\t$amt", []>, OpSize; } // Unconditional branches. diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 14d673a..3feb836 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -1182,7 +1182,45 @@ def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", []>, TB; // Table lookup instructions def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", []>; - +// ASCII Adjust After Addition +// sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS +def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", []>, Requires<[In32BitMode]>; + +// ASCII Adjust AX Before Division +// sets AL, AH and EFLAGS and uses AL and AH +def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src), + "aad\t$src", []>, Requires<[In32BitMode]>; + +// ASCII Adjust AX After Multiply +// sets AL, AH and EFLAGS and uses AL +def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src), + "aam\t$src", []>, Requires<[In32BitMode]>; + +// ASCII Adjust AL After Subtraction - sets +// sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS +def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", []>, Requires<[In32BitMode]>; + +// Decimal Adjust AL after Addition +// sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS +def DAA : I<0x27, RawFrm, (outs), (ins), "daa", []>, Requires<[In32BitMode]>; + +// Decimal Adjust AL after Subtraction +// sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS +def DAS : I<0x2F, RawFrm, (outs), (ins), "das", []>, Requires<[In32BitMode]>; + +// Check Array Index Against Bounds +def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src), + "bound\t{$src, $dst|$dst, $src}", []>, OpSize, + Requires<[In32BitMode]>; +def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src), + "bound\t{$src, $dst|$dst, $src}", []>, + Requires<[In32BitMode]>; + +// Adjust RPL Field of Segment Selector +def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$src), (ins GR16:$dst), + "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>; +def ARPL16mr : I<0x63, MRMSrcMem, (outs GR16:$src), (ins i16mem:$dst), + "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>; //===----------------------------------------------------------------------===// // Subsystems. |