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Merge pull request #514 from Subv/lop32i

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GPU: Implemented the LOP32I instruction.
This commit is contained in:
bunnei 2018-06-04 20:48:15 -04:00 committed by GitHub
commit e8bfff7b4b
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 58 additions and 1 deletions
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16
src/video_core/engines/shader_bytecode.h
View file

@ -156,6 +156,13 @@ enum class PredOperation : u64 {
Xor = 2,
};
enum class LogicOperation : u64 {
And = 0,
Or = 1,
Xor = 2,
PassB = 3,
};
enum class SubOp : u64 {
Cos = 0x0,
Sin = 0x1,
@ -202,6 +209,12 @@ union Instruction {
BitField<42, 1, u64> negate_pred;
} fmnmx;
union {
BitField<53, 2, LogicOperation> operation;
BitField<55, 1, u64> invert_a;
BitField<56, 1, u64> invert_b;
} lop;
float GetImm20_19() const {
float result{};
u32 imm{static_cast<u32>(imm20_19)};
@ -391,6 +404,7 @@ public:
enum class Type {
Trivial,
Arithmetic,
Logic,
Ffma,
Flow,
Memory,
@ -524,7 +538,6 @@ private:
INST("0100110010110---", Id::F2I_C, Type::Arithmetic, "F2I_C"),
INST("0101110010110---", Id::F2I_R, Type::Arithmetic, "F2I_R"),
INST("0011100-10110---", Id::F2I_IMM, Type::Arithmetic, "F2I_IMM"),
INST("000001----------", Id::LOP32I, Type::Arithmetic, "LOP32I"),
INST("0100110010011---", Id::MOV_C, Type::Arithmetic, "MOV_C"),
INST("0101110010011---", Id::MOV_R, Type::Arithmetic, "MOV_R"),
INST("0011100-10011---", Id::MOV_IMM, Type::Arithmetic, "MOV_IMM"),
@ -535,6 +548,7 @@ private:
INST("0100110001100---", Id::FMNMX_C, Type::Arithmetic, "FMNMX_C"),
INST("0101110001100---", Id::FMNMX_R, Type::Arithmetic, "FMNMX_R"),
INST("0011100-01100---", Id::FMNMX_IMM, Type::Arithmetic, "FMNMX_IMM"),
INST("000001----------", Id::LOP32I, Type::Logic, "LOP32I"),
INST("0100110011100---", Id::I2I_C, Type::Conversion, "I2I_C"),
INST("0101110011100---", Id::I2I_R, Type::Conversion, "I2I_R"),
INST("01110001-1000---", Id::I2I_IMM, Type::Conversion, "I2I_IMM"),

43
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View file

@ -841,6 +841,49 @@ private:
}
break;
}
case OpCode::Type::Logic: {
std::string op_a = regs.GetRegisterAsInteger(instr.gpr8, 0, false);
if (instr.alu.lop.invert_a)
op_a = "~(" + op_a + ')';
switch (opcode->GetId()) {
case OpCode::Id::LOP32I: {
u32 imm = static_cast<u32>(instr.alu.imm20_32.Value());
if (instr.alu.lop.invert_b)
imm = ~imm;
switch (instr.alu.lop.operation) {
case Tegra::Shader::LogicOperation::And: {
regs.SetRegisterToInteger(instr.gpr0, false, 0,
'(' + op_a + " & " + std::to_string(imm) + ')', 1, 1);
break;
}
case Tegra::Shader::LogicOperation::Or: {
regs.SetRegisterToInteger(instr.gpr0, false, 0,
'(' + op_a + " | " + std::to_string(imm) + ')', 1, 1);
break;
}
case Tegra::Shader::LogicOperation::Xor: {
regs.SetRegisterToInteger(instr.gpr0, false, 0,
'(' + op_a + " ^ " + std::to_string(imm) + ')', 1, 1);
break;
}
default:
NGLOG_CRITICAL(HW_GPU, "Unimplemented lop32i operation: {}",
static_cast<u32>(instr.alu.lop.operation.Value()));
UNREACHABLE();
}
break;
}
default: {
NGLOG_CRITICAL(HW_GPU, "Unhandled logic instruction: {}", opcode->GetName());
UNREACHABLE();
}
}
break;
}
case OpCode::Type::Ffma: {
std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
std::string op_b = instr.ffma.negate_b ? "-" : "";