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Merge pull request #512 from Subv/fset

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GPU: Corrected the FSET and I2F instructions.
This commit is contained in:
bunnei 2018-06-04 19:04:20 -04:00 committed by GitHub
parent cdd92dc692 2933521a08
commit 37fd4e6d9b
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 19 additions and 4 deletions
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2
src/video_core/engines/shader_bytecode.h
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@ -245,9 +245,9 @@ union Instruction {
BitField<44, 1, u64> abs_b;
BitField<45, 2, PredOperation> op;
BitField<48, 4, PredCondition> cond;
BitField<52, 1, u64> bf;
BitField<53, 1, u64> neg_b;
BitField<54, 1, u64> abs_a;
BitField<52, 1, u64> bf;
BitField<55, 1, u64> ftz;
BitField<56, 1, u64> neg_imm;
} fset;

19
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View file

@ -871,8 +871,7 @@ private:
ASSERT_MSG(!instr.conversion.saturate_a, "Unimplemented");
switch (opcode->GetId()) {
case OpCode::Id::I2I_R:
case OpCode::Id::I2F_R: {
case OpCode::Id::I2I_R: {
ASSERT_MSG(!instr.conversion.selector, "Unimplemented");
std::string op_a =
@ -885,6 +884,17 @@ private:
regs.SetRegisterToInteger(instr.gpr0, instr.conversion.is_signed, 0, op_a, 1, 1);
break;
}
case OpCode::Id::I2F_R: {
std::string op_a =
regs.GetRegisterAsInteger(instr.gpr20, 0, instr.conversion.is_signed);
if (instr.conversion.abs_a) {
op_a = "abs(" + op_a + ')';
}
regs.SetRegisterToFloat(instr.gpr0, 0, op_a, 1, 1);
break;
}
case OpCode::Id::F2F_R: {
std::string op_a = regs.GetRegisterAsFloat(instr.gpr20);
@ -1078,7 +1088,12 @@ private:
std::string predicate = "(((" + op_a + ") " + comparator + " (" + op_b + ")) " +
combiner + " (" + second_pred + "))";
if (instr.fset.bf) {
regs.SetRegisterToFloat(instr.gpr0, 0, predicate + " ? 1.0 : 0.0", 1, 1);
} else {
regs.SetRegisterToInteger(instr.gpr0, false, 0, predicate + " ? 0xFFFFFFFF : 0", 1,
1);
}
break;
}
default: {