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gl_shader_decompiler: Implement non-immediate HADD2 and HMUL2 instructions

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This commit is contained in:
ReinUsesLisp 2018-10-15 02:04:31 -03:00
parent 08d751d882
commit d46e2a6e7a
2 changed files with 75 additions and 0 deletions
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50
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -1827,6 +1827,56 @@ private:
break;
}
case OpCode::Type::ArithmeticHalf: {
if (opcode->GetId() == OpCode::Id::HADD2_C || opcode->GetId() == OpCode::Id::HADD2_R) {
ASSERT_MSG(instr.alu_half.ftz == 0, "Unimplemented");
}
const bool negate_a =
opcode->GetId() != OpCode::Id::HMUL2_R && instr.alu_half.negate_a != 0;
const bool negate_b =
opcode->GetId() != OpCode::Id::HMUL2_C && instr.alu_half.negate_b != 0;
const std::string op_a =
GetHalfFloat(regs.GetRegisterAsInteger(instr.gpr8, 0, false), instr.alu_half.type_a,
instr.alu_half.abs_a != 0, negate_a);
std::string op_b;
switch (opcode->GetId()) {
case OpCode::Id::HADD2_C:
case OpCode::Id::HMUL2_C:
op_b = regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
GLSLRegister::Type::UnsignedInteger);
break;
case OpCode::Id::HADD2_R:
case OpCode::Id::HMUL2_R:
op_b = regs.GetRegisterAsInteger(instr.gpr20, 0, false);
break;
default:
UNREACHABLE();
op_b = "0";
break;
}
op_b = GetHalfFloat(op_b, instr.alu_half.type_b, instr.alu_half.abs_b != 0, negate_b);
const std::string result = [&]() {
switch (opcode->GetId()) {
case OpCode::Id::HADD2_C:
case OpCode::Id::HADD2_R:
return '(' + op_a + " + " + op_b + ')';
case OpCode::Id::HMUL2_C:
case OpCode::Id::HMUL2_R:
return '(' + op_a + " * " + op_b + ')';
default:
LOG_CRITICAL(HW_GPU, "Unhandled half float instruction: {}", opcode->GetName());
UNREACHABLE();
return std::string("0");
}
}();
regs.SetRegisterToHalfFloat(instr.gpr0, 0, result, instr.alu_half.merge, 1, 1,
instr.alu_half.saturate != 0);
break;
}
case OpCode::Type::Ffma: {
const std::string op_a = regs.GetRegisterAsFloat(instr.gpr8);
std::string op_b = instr.ffma.negate_b ? "-" : "";