diff options
Diffstat (limited to 'Source/Core/Common')
| -rw-r--r-- | Source/Core/Common/Src/x64Emitter.cpp | 58 | ||||
| -rw-r--r-- | Source/Core/Common/Src/x64Emitter.h | 4 |
2 files changed, 61 insertions, 1 deletions
diff --git a/Source/Core/Common/Src/x64Emitter.cpp b/Source/Core/Common/Src/x64Emitter.cpp index bfefa3e28f..1324cb7761 100644 --- a/Source/Core/Common/Src/x64Emitter.cpp +++ b/Source/Core/Common/Src/x64Emitter.cpp @@ -936,6 +936,64 @@ namespace Gen void CMP (int bits, const OpArg &a1, const OpArg &a2) {WriteNormalOp(bits, nrmCMP, a1, a2);}
void XCHG(int bits, const OpArg &a1, const OpArg &a2) {WriteNormalOp(bits, nrmXCHG, a1, a2);}
+ void IMUL(int bits, X64Reg regOp, OpArg a1, OpArg a2)
+ {
+ if (bits == 8) {
+ _assert_msg_(DYNA_REC, 0, "IMUL - illegal bit size!");
+ return;
+ }
+ if (a1.IsImm()) {
+ _assert_msg_(DYNA_REC, 0, "IMUL - second arg cannot be imm!");
+ return;
+ }
+ if (!a2.IsImm())
+ {
+ _assert_msg_(DYNA_REC, 0, "IMUL - third arg must be imm!");
+ return;
+ }
+
+ if (bits == 16)
+ Write8(0x66);
+ a1.WriteRex(bits == 64, regOp);
+
+ if (a2.GetImmBits() == 8) {
+ Write8(0x6B);
+ a1.WriteRest(1, regOp);
+ Write8((u8)a2.offset);
+ } else {
+ Write8(0x69);
+ if (a2.GetImmBits() == 16 && bits == 16) {
+ a1.WriteRest(2, regOp);
+ Write16((u16)a2.offset);
+ } else if (a2.GetImmBits() == 32 &&
+ (bits == 32 || bits == 64)) {
+ a1.WriteRest(4, regOp);
+ Write32((u32)a2.offset);
+ } else {
+ _assert_msg_(DYNA_REC, 0, "IMUL - unhandled case!");
+ }
+ }
+ }
+
+ void IMUL(int bits, X64Reg regOp, OpArg a)
+ {
+ if (bits == 8) {
+ _assert_msg_(DYNA_REC, 0, "IMUL - illegal bit size!");
+ return;
+ }
+ if (a.IsImm())
+ {
+ IMUL(bits, regOp, R(regOp), a) ;
+ return ;
+ }
+
+ if (bits == 16)
+ Write8(0x66);
+ a.WriteRex(bits == 64, regOp);
+ Write8(0x0F);
+ Write8(0xAF);
+ a.WriteRest(0, regOp);
+ }
void WriteSSEOp(int size, u8 sseOp, bool packed, X64Reg regOp, OpArg arg, int extrabytes = 0)
diff --git a/Source/Core/Common/Src/x64Emitter.h b/Source/Core/Common/Src/x64Emitter.h index 5126aa1d66..b62b24f786 100644 --- a/Source/Core/Common/Src/x64Emitter.h +++ b/Source/Core/Common/Src/x64Emitter.h @@ -282,7 +282,9 @@ namespace Gen void DIV(int bits, OpArg src);
void IMUL(int bits, OpArg src); //SIGNED
void IDIV(int bits, OpArg src);
- //TODO: alternate IMUL forms
+ void IMUL(int bits, X64Reg regOp, OpArg src);
+ void IMUL(int bits, X64Reg regOp, OpArg src, OpArg imm);
+
void NEG(int bits, OpArg src);
void NOT(int bits, OpArg src);
|