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https://github.com/doitsujin/dxvk.git
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[dxbc] Implemented mad instruction
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c246e03594
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@ -47,6 +47,9 @@ namespace dxvk {
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case DxbcOpcode::Add:
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return this->opAdd(ins);
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case DxbcOpcode::Mad:
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return this->opMad(ins);
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case DxbcOpcode::Mul:
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return this->opMul(ins);
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@ -235,6 +238,24 @@ namespace dxvk {
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}
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void DxbcCompiler::opMad(const DxbcInstruction& ins) {
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auto dstOp = ins.operand(0);
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auto srcOp1 = ins.operand(dstOp.length());
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auto srcOp2 = ins.operand(dstOp.length() + srcOp1.length());
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auto srcOp3 = ins.operand(dstOp.length() + srcOp1.length() + srcOp2.length());
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DxbcComponentMask mask = this->getDstOperandMask(dstOp);
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DxbcValue src1 = this->loadOperand(srcOp1, mask, DxbcScalarType::Float32);
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DxbcValue src2 = this->loadOperand(srcOp2, mask, DxbcScalarType::Float32);
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DxbcValue src3 = this->loadOperand(srcOp3, mask, DxbcScalarType::Float32);
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// TODO implement with native FMA instruction
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DxbcValue val = m_gen->opMul(src1, src2);
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val = m_gen->opAdd(val, src3);
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val = this->applyResultModifiers(val, ins.token().control());
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this->storeOperand(dstOp, val, mask);
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}
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void DxbcCompiler::opMul(const DxbcInstruction& ins) {
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auto dstOp = ins.operand(0);
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auto srcOp1 = ins.operand(dstOp.length());
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@ -50,6 +50,9 @@ namespace dxvk {
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void opAdd(
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const DxbcInstruction& ins);
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void opMad(
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const DxbcInstruction& ins);
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void opMul(
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const DxbcInstruction& ins);
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