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@ -12,6 +12,7 @@ namespace VideoCommon::Shader {
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using Tegra::Shader::IAdd3Height;
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using Tegra::Shader::Instruction;
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using Tegra::Shader::OpCode;
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using Tegra::Shader::Pred;
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using Tegra::Shader::Register;
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u32 ShaderIR::DecodeArithmeticInteger(BasicBlock& bb, u32 pc) {
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@ -175,6 +176,60 @@ u32 ShaderIR::DecodeArithmeticInteger(BasicBlock& bb, u32 pc) {
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SetRegister(bb, instr.gpr0, value);
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break;
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}
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case OpCode::Id::LEA_R2:
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case OpCode::Id::LEA_R1:
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case OpCode::Id::LEA_IMM:
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case OpCode::Id::LEA_RZ:
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case OpCode::Id::LEA_HI: {
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const auto [op_a, op_b, op_c] = [&]() -> std::tuple<Node, Node, Node> {
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switch (opcode->get().GetId()) {
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case OpCode::Id::LEA_R2: {
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return {GetRegister(instr.gpr20), GetRegister(instr.gpr39),
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Immediate(static_cast<u32>(instr.lea.r2.entry_a))};
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}
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case OpCode::Id::LEA_R1: {
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const bool neg = instr.lea.r1.neg != 0;
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return {GetOperandAbsNegInteger(GetRegister(instr.gpr8), false, neg, true),
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GetRegister(instr.gpr20),
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Immediate(static_cast<u32>(instr.lea.r1.entry_a))};
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}
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case OpCode::Id::LEA_IMM: {
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const bool neg = instr.lea.imm.neg != 0;
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return {Immediate(static_cast<u32>(instr.lea.imm.entry_a)),
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GetOperandAbsNegInteger(GetRegister(instr.gpr8), false, neg, true),
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Immediate(static_cast<u32>(instr.lea.imm.entry_b))};
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}
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case OpCode::Id::LEA_RZ: {
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const bool neg = instr.lea.rz.neg != 0;
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return {GetConstBuffer(instr.lea.rz.cb_index, instr.lea.rz.cb_offset),
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GetOperandAbsNegInteger(GetRegister(instr.gpr8), false, neg, true),
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Immediate(static_cast<u32>(instr.lea.rz.entry_a))};
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}
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case OpCode::Id::LEA_HI:
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default:
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UNIMPLEMENTED_MSG("Unhandled LEA subinstruction: {}", opcode->get().GetName());
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return {Immediate(static_cast<u32>(instr.lea.imm.entry_a)), GetRegister(instr.gpr8),
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Immediate(static_cast<u32>(instr.lea.imm.entry_b))};
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}
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}();
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UNIMPLEMENTED_IF_MSG(instr.lea.pred48 != static_cast<u64>(Pred::UnusedIndex),
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"Unhandled LEA Predicate");
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const Node shifted_c =
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Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, Immediate(1), op_c);
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const Node mul_bc = Operation(OperationCode::IMul, NO_PRECISE, op_b, shifted_c);
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const Node value = Operation(OperationCode::IAdd, NO_PRECISE, op_a, mul_bc);
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SetRegister(bb, instr.gpr0, value);
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break;
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}
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default:
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UNIMPLEMENTED_MSG("Unhandled ArithmeticInteger instruction: {}", opcode->get().GetName());
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}
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