diff options
Diffstat (limited to 'src/video_core/shader/decode/arithmetic_immediate.cpp')
| -rw-r--r-- | src/video_core/shader/decode/arithmetic_immediate.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/video_core/shader/decode/arithmetic_immediate.cpp b/src/video_core/shader/decode/arithmetic_immediate.cpp new file mode 100644 index 000000000..4fd3db54e --- /dev/null +++ b/src/video_core/shader/decode/arithmetic_immediate.cpp @@ -0,0 +1,52 @@ +// Copyright 2018 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/assert.h" +#include "common/common_types.h" +#include "video_core/engines/shader_bytecode.h" +#include "video_core/shader/shader_ir.h" + +namespace VideoCommon::Shader { + +using Tegra::Shader::Instruction; +using Tegra::Shader::OpCode; + +u32 ShaderIR::DecodeArithmeticImmediate(BasicBlock& bb, const BasicBlock& code, u32 pc) { + const Instruction instr = {program_code[pc]}; + const auto opcode = OpCode::Decode(instr); + + switch (opcode->get().GetId()) { + case OpCode::Id::MOV32_IMM: { + SetRegister(bb, instr.gpr0, GetImmediate32(instr)); + break; + } + case OpCode::Id::FMUL32_IMM: { + Node value = + Operation(OperationCode::FMul, PRECISE, GetRegister(instr.gpr8), GetImmediate32(instr)); + value = GetSaturatedFloat(value, instr.fmul32.saturate); + + SetInternalFlagsFromFloat(bb, value, instr.op_32.generates_cc); + SetRegister(bb, instr.gpr0, value); + break; + } + case OpCode::Id::FADD32I: { + const Node op_a = GetOperandAbsNegFloat(GetRegister(instr.gpr8), instr.fadd32i.abs_a, + instr.fadd32i.negate_a); + const Node op_b = GetOperandAbsNegFloat(GetImmediate32(instr), instr.fadd32i.abs_b, + instr.fadd32i.negate_b); + + const Node value = Operation(OperationCode::FAdd, PRECISE, op_a, op_b); + SetInternalFlagsFromFloat(bb, value, instr.op_32.generates_cc); + SetRegister(bb, instr.gpr0, value); + break; + } + default: + UNIMPLEMENTED_MSG("Unhandled arithmetic immediate instruction: {}", + opcode->get().GetName()); + } + + return pc; +} + +} // namespace VideoCommon::Shader
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