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PPCRec: Implement PSQ scaling
This commit is contained in:
Exzap
parent
de542410c2
commit
557aff4024
4 changed files with 85 additions and 17 deletions
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@ -744,7 +744,21 @@ void PPCRecompilerImlGen_ClampInteger(ppcImlGenContext_t* ppcImlGenContext, IMLR
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);
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}
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void PPCRecompilerImlGen_EmitPSQLoadCase(ppcImlGenContext_t* ppcImlGenContext, Espresso::PSQ_LOAD_TYPE loadType, bool readPS1, IMLReg gprA, sint32 imm, IMLReg fprDPS0, IMLReg fprDPS1)
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void PPCRecompilerIMLGen_GetPSQScale(ppcImlGenContext_t* ppcImlGenContext, IMLReg gqrRegister, IMLReg fprRegScaleOut, bool isLoad)
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{
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IMLReg gprTmp2 = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_TEMPORARY + 2);
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// extract scale factor and sign extend it
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_LEFT_SHIFT, gprTmp2, gqrRegister, 32 - ((isLoad ? 24 : 8)+7));
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_RIGHT_SHIFT_S, gprTmp2, gprTmp2, (32-23)-7);
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_AND, gprTmp2, gprTmp2, 0x1FF<<23);
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if (isLoad)
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ppcImlGenContext->emitInst().make_r_r(PPCREC_IML_OP_NEG, gprTmp2, gprTmp2);
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_ADD, gprTmp2, gprTmp2, 0x7F<<23);
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// gprTmp2 now holds the scale float bits, bitcast to float
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_BITCAST_INT_TO_FLOAT, fprRegScaleOut, gprTmp2);
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}
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void PPCRecompilerImlGen_EmitPSQLoadCase(ppcImlGenContext_t* ppcImlGenContext, sint32 gqrIndex, Espresso::PSQ_LOAD_TYPE loadType, bool readPS1, IMLReg gprA, sint32 imm, IMLReg fprDPS0, IMLReg fprDPS1)
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{
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if (loadType == Espresso::PSQ_LOAD_TYPE::TYPE_F32)
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{
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@ -756,26 +770,42 @@ void PPCRecompilerImlGen_EmitPSQLoadCase(ppcImlGenContext_t* ppcImlGenContext, E
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}
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if (loadType == Espresso::PSQ_LOAD_TYPE::TYPE_U16 || loadType == Espresso::PSQ_LOAD_TYPE::TYPE_S16)
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{
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// get scale factor
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IMLReg gqrRegister = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_SPR0 + SPR_UGQR0 + gqrIndex);
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IMLReg fprScaleReg = _GetFPRTemp(ppcImlGenContext, 2);
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PPCRecompilerIMLGen_GetPSQScale(ppcImlGenContext, gqrRegister, fprScaleReg, true);
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bool isSigned = (loadType == Espresso::PSQ_LOAD_TYPE::TYPE_S16);
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IMLReg gprTmp = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_TEMPORARY + 0);
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ppcImlGenContext->emitInst().make_r_memory(gprTmp, gprA, imm, 16, isSigned, true);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_INT_TO_FLOAT, fprDPS0, gprTmp);
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ppcImlGenContext->emitInst().make_fpr_r_r_r(PPCREC_IML_OP_FPR_MULTIPLY, fprDPS0, fprDPS0, fprScaleReg);
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if(readPS1)
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{
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ppcImlGenContext->emitInst().make_r_memory(gprTmp, gprA, imm + 2, 16, isSigned, true);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_INT_TO_FLOAT, fprDPS1, gprTmp);
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ppcImlGenContext->emitInst().make_fpr_r_r_r(PPCREC_IML_OP_FPR_MULTIPLY, fprDPS1, fprDPS1, fprScaleReg);
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}
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}
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else if (loadType == Espresso::PSQ_LOAD_TYPE::TYPE_U8 || loadType == Espresso::PSQ_LOAD_TYPE::TYPE_S8)
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{
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// get scale factor
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IMLReg gqrRegister = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_SPR0 + SPR_UGQR0 + gqrIndex);
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IMLReg fprScaleReg = _GetFPRTemp(ppcImlGenContext, 2);
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PPCRecompilerIMLGen_GetPSQScale(ppcImlGenContext, gqrRegister, fprScaleReg, true);
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bool isSigned = (loadType == Espresso::PSQ_LOAD_TYPE::TYPE_S8);
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IMLReg gprTmp = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_TEMPORARY + 0);
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ppcImlGenContext->emitInst().make_r_memory(gprTmp, gprA, imm, 8, isSigned, true);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_INT_TO_FLOAT, fprDPS0, gprTmp);
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ppcImlGenContext->emitInst().make_fpr_r_r_r(PPCREC_IML_OP_FPR_MULTIPLY, fprDPS0, fprDPS0, fprScaleReg);
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if(readPS1)
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{
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ppcImlGenContext->emitInst().make_r_memory(gprTmp, gprA, imm + 1, 8, isSigned, true);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_INT_TO_FLOAT, fprDPS1, gprTmp);
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ppcImlGenContext->emitInst().make_fpr_r_r_r(PPCREC_IML_OP_FPR_MULTIPLY, fprDPS1, fprDPS1, fprScaleReg);
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}
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}
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}
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@ -812,14 +842,15 @@ bool PPCRecompilerImlGen_PSQ_L(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
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IMLReg gqrRegister = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_SPR0 + SPR_UGQR0 + gqrIndex);
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IMLReg loadTypeReg = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_TEMPORARY + 0);
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// extract the load type from the GQR register
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_AND, loadTypeReg, gqrRegister, 0x7);
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_RIGHT_SHIFT_U, loadTypeReg, gqrRegister, 16);
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_AND, loadTypeReg, loadTypeReg, 0x7);
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IMLSegment* caseSegment[6];
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sint32 compareValues[6] = {0, 4, 5, 6, 7};
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PPCIMLGen_CreateSegmentBranchedPathMultiple(*ppcImlGenContext, *ppcImlGenContext->currentBasicBlock, caseSegment, loadTypeReg, compareValues, 5, 0);
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for (sint32 i=0; i<5; i++)
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{
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IMLRedirectInstOutput outputToCase(ppcImlGenContext, caseSegment[i]); // while this is in scope, instructions go to caseSegment[i]
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PPCRecompilerImlGen_EmitPSQLoadCase(ppcImlGenContext, static_cast<Espresso::PSQ_LOAD_TYPE>(compareValues[i]), readPS1, gprA, imm, fprDPS0, fprDPS1);
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PPCRecompilerImlGen_EmitPSQLoadCase(ppcImlGenContext, gqrIndex, static_cast<Espresso::PSQ_LOAD_TYPE>(compareValues[i]), readPS1, gprA, imm, fprDPS0, fprDPS1);
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// create the case jump instructions here because we need to add it last
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caseSegment[i]->AppendInstruction()->make_jump();
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}
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@ -839,11 +870,11 @@ bool PPCRecompilerImlGen_PSQ_L(ppcImlGenContext_t* ppcImlGenContext, uint32 opco
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return false;
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}
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PPCRecompilerImlGen_EmitPSQLoadCase(ppcImlGenContext, type, readPS1, gprA, imm, fprDPS0, fprDPS1);
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PPCRecompilerImlGen_EmitPSQLoadCase(ppcImlGenContext, gqrIndex, type, readPS1, gprA, imm, fprDPS0, fprDPS1);
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return true;
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}
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void PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext_t* ppcImlGenContext, Espresso::PSQ_LOAD_TYPE storeType, bool storePS1, IMLReg gprA, sint32 imm, IMLReg fprDPS0, IMLReg fprDPS1)
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void PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext_t* ppcImlGenContext, sint32 gqrIndex, Espresso::PSQ_LOAD_TYPE storeType, bool storePS1, IMLReg gprA, sint32 imm, IMLReg fprDPS0, IMLReg fprDPS1)
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{
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cemu_assert_debug(!storePS1 || fprDPS1.IsValid());
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if (storeType == Espresso::PSQ_LOAD_TYPE::TYPE_F32)
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@ -856,10 +887,18 @@ void PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext_t* ppcImlGenContext,
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}
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else if (storeType == Espresso::PSQ_LOAD_TYPE::TYPE_U16 || storeType == Espresso::PSQ_LOAD_TYPE::TYPE_S16)
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{
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// get scale factor
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IMLReg gqrRegister = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_SPR0 + SPR_UGQR0 + gqrIndex);
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IMLReg fprScaleReg = _GetFPRTemp(ppcImlGenContext, 2);
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PPCRecompilerIMLGen_GetPSQScale(ppcImlGenContext, gqrRegister, fprScaleReg, false);
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bool isSigned = (storeType == Espresso::PSQ_LOAD_TYPE::TYPE_S16);
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IMLReg fprTmp = _GetFPRTemp(ppcImlGenContext, 0);
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IMLReg gprTmp = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_TEMPORARY + 0);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_FLOAT_TO_INT, gprTmp, fprDPS0);
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// todo - scaling
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ppcImlGenContext->emitInst().make_fpr_r_r_r(PPCREC_IML_OP_FPR_MULTIPLY, fprTmp, fprDPS0, fprScaleReg);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_FLOAT_TO_INT, gprTmp, fprTmp);
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if (isSigned)
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PPCRecompilerImlGen_ClampInteger(ppcImlGenContext, gprTmp, -32768, 32767);
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else
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@ -867,8 +906,8 @@ void PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext_t* ppcImlGenContext,
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ppcImlGenContext->emitInst().make_memory_r(gprTmp, gprA, imm, 16, true);
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if(storePS1)
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{
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_FLOAT_TO_INT, gprTmp, fprDPS1);
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// todo - scaling
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ppcImlGenContext->emitInst().make_fpr_r_r_r(PPCREC_IML_OP_FPR_MULTIPLY, fprTmp, fprDPS1, fprScaleReg);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_FLOAT_TO_INT, gprTmp, fprTmp);
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if (isSigned)
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PPCRecompilerImlGen_ClampInteger(ppcImlGenContext, gprTmp, -32768, 32767);
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else
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@ -878,9 +917,16 @@ void PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext_t* ppcImlGenContext,
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}
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else if (storeType == Espresso::PSQ_LOAD_TYPE::TYPE_U8 || storeType == Espresso::PSQ_LOAD_TYPE::TYPE_S8)
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{
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// get scale factor
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IMLReg gqrRegister = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_SPR0 + SPR_UGQR0 + gqrIndex);
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IMLReg fprScaleReg = _GetFPRTemp(ppcImlGenContext, 2);
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PPCRecompilerIMLGen_GetPSQScale(ppcImlGenContext, gqrRegister, fprScaleReg, false);
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bool isSigned = (storeType == Espresso::PSQ_LOAD_TYPE::TYPE_S8);
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IMLReg fprTmp = _GetFPRTemp(ppcImlGenContext, 0);
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IMLReg gprTmp = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_TEMPORARY + 0);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_FLOAT_TO_INT, gprTmp, fprDPS0);
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ppcImlGenContext->emitInst().make_fpr_r_r_r(PPCREC_IML_OP_FPR_MULTIPLY, fprTmp, fprDPS0, fprScaleReg);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_FLOAT_TO_INT, gprTmp, fprTmp);
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if (isSigned)
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PPCRecompilerImlGen_ClampInteger(ppcImlGenContext, gprTmp, -128, 127);
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else
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@ -888,8 +934,8 @@ void PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext_t* ppcImlGenContext,
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ppcImlGenContext->emitInst().make_memory_r(gprTmp, gprA, imm, 8, true);
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if(storePS1)
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{
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_FLOAT_TO_INT, gprTmp, fprDPS1);
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// todo - scaling
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ppcImlGenContext->emitInst().make_fpr_r_r_r(PPCREC_IML_OP_FPR_MULTIPLY, fprTmp, fprDPS1, fprScaleReg);
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ppcImlGenContext->emitInst().make_fpr_r_r(PPCREC_IML_OP_FPR_FLOAT_TO_INT, gprTmp, fprTmp);
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if (isSigned)
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PPCRecompilerImlGen_ClampInteger(ppcImlGenContext, gprTmp, -128, 127);
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else
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@ -928,8 +974,7 @@ bool PPCRecompilerImlGen_PSQ_ST(ppcImlGenContext_t* ppcImlGenContext, uint32 opc
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IMLReg gqrRegister = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_SPR0 + SPR_UGQR0 + gqrIndex);
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IMLReg loadTypeReg = PPCRecompilerImlGen_loadRegister(ppcImlGenContext, PPCREC_NAME_TEMPORARY + 0);
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// extract the load type from the GQR register
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_RIGHT_SHIFT_U, loadTypeReg, gqrRegister, 16);
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_AND, loadTypeReg, loadTypeReg, 0x7);
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ppcImlGenContext->emitInst().make_r_r_s32(PPCREC_IML_OP_AND, loadTypeReg, gqrRegister, 0x7);
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IMLSegment* caseSegment[5];
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sint32 compareValues[5] = {0, 4, 5, 6, 7};
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@ -937,7 +982,7 @@ bool PPCRecompilerImlGen_PSQ_ST(ppcImlGenContext_t* ppcImlGenContext, uint32 opc
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for (sint32 i=0; i<5; i++)
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{
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IMLRedirectInstOutput outputToCase(ppcImlGenContext, caseSegment[i]); // while this is in scope, instructions go to caseSegment[i]
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PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext, static_cast<Espresso::PSQ_LOAD_TYPE>(compareValues[i]), storePS1, gprA, imm, fprDPS0, fprDPS1);
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PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext, gqrIndex, static_cast<Espresso::PSQ_LOAD_TYPE>(compareValues[i]), storePS1, gprA, imm, fprDPS0, fprDPS1);
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ppcImlGenContext->emitInst().make_jump(); // finalize case
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}
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return true;
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@ -954,7 +999,7 @@ bool PPCRecompilerImlGen_PSQ_ST(ppcImlGenContext_t* ppcImlGenContext, uint32 opc
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return false;
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}
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PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext, type, storePS1, gprA, imm, fprDPS0, fprDPS1);
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PPCRecompilerImlGen_EmitPSQStoreCase(ppcImlGenContext, gqrIndex, type, storePS1, gprA, imm, fprDPS0, fprDPS1);
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return true;
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}
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