diff options
| author | Pierre Bourdon <delroth@gmail.com> | 2014-09-02 08:55:38 +0200 |
|---|---|---|
| committer | Pierre Bourdon <delroth@gmail.com> | 2014-09-02 09:52:59 +0200 |
| commit | cc0b048c0bf1a80039374fbe606c97bd79e71ebc (patch) | |
| tree | 69a7141d89e26997e423762b421043df29bd808e /Source/Core/Common/x64Emitter.cpp | |
| parent | f99f302c9188e53eb745afa7bd5cc0b84d9f6092 (diff) | |
x64Emitter: Support FLD/FSTP with 80 bits operands
Diffstat (limited to 'Source/Core/Common/x64Emitter.cpp')
| -rw-r--r-- | Source/Core/Common/x64Emitter.cpp | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/Source/Core/Common/x64Emitter.cpp b/Source/Core/Common/x64Emitter.cpp index 0a9a10487c..036e085d41 100644 --- a/Source/Core/Common/x64Emitter.cpp +++ b/Source/Core/Common/x64Emitter.cpp @@ -1660,25 +1660,27 @@ void XEmitter::FWAIT() } // TODO: make this more generic -void XEmitter::WriteFloatLoadStore(int bits, FloatOp op, OpArg arg) +void XEmitter::WriteFloatLoadStore(int bits, FloatOp op, FloatOp op_80b, OpArg arg) { int mf = 0; - + _assert_msg_(DYNA_REC, !(bits == 80 && op_80b == floatINVALID), "WriteFloatLoadStore: 80 bits not supported for this instruction"); switch (bits) { case 32: mf = 0; break; - case 64: mf = 2; break; - default: _assert_msg_(DYNA_REC, 0, "WriteFloatLoadStore: bits is not 32 or 64"); + case 64: mf = 4; break; + case 80: mf = 2; break; + default: _assert_msg_(DYNA_REC, 0, "WriteFloatLoadStore: invalid bits (should be 32/64/80)"); } - - Write8(0xd9 | (mf << 1)); + Write8(0xd9 | mf); // x87 instructions use the reg field of the ModR/M byte as opcode: + if (bits == 80) + op = op_80b; arg.WriteRest(this, 0, (X64Reg) op); } -void XEmitter::FLD(int bits, OpArg src) {WriteFloatLoadStore(bits, floatLD, src);} -void XEmitter::FST(int bits, OpArg dest) {WriteFloatLoadStore(bits, floatST, dest);} -void XEmitter::FSTP(int bits, OpArg dest) {WriteFloatLoadStore(bits, floatSTP, dest);} +void XEmitter::FLD(int bits, OpArg src) {WriteFloatLoadStore(bits, floatLD, floatLD80, src);} +void XEmitter::FST(int bits, OpArg dest) {WriteFloatLoadStore(bits, floatST, floatINVALID, dest);} +void XEmitter::FSTP(int bits, OpArg dest) {WriteFloatLoadStore(bits, floatSTP, floatSTP80, dest);} void XEmitter::FNSTSW_AX() { Write8(0xDF); Write8(0xE0); } void XEmitter::RDTSC() { Write8(0x0F); Write8(0x31); } |