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Merge pull request #1547 from FernandoS27/fix-fset

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Fixed FSETP and FSET
This commit is contained in:
bunnei 2018-10-22 12:53:47 -04:00 committed by GitHub
commit 1226a5706e
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 12 additions and 30 deletions
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2
src/video_core/engines/shader_bytecode.h
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@ -753,7 +753,6 @@ union Instruction {
BitField<45, 2, PredOperation> op;
BitField<47, 1, u64> ftz;
BitField<48, 4, PredCondition> cond;
BitField<56, 1, u64> neg_b;
} fsetp;
union {
@ -828,7 +827,6 @@ union Instruction {
BitField<53, 1, u64> neg_b;
BitField<54, 1, u64> abs_a;
BitField<55, 1, u64> ftz;
BitField<56, 1, u64> neg_imm;
} fset;
union {

38
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View file

@ -2736,20 +2736,13 @@ private:
break;
}
case OpCode::Type::FloatSetPredicate: {
std::string op_a = instr.fsetp.neg_a ? "-" : "";
op_a += regs.GetRegisterAsFloat(instr.gpr8);
const std::string op_a =
GetOperandAbsNeg(regs.GetRegisterAsFloat(instr.gpr8), instr.fsetp.abs_a != 0,
instr.fsetp.neg_a != 0);
if (instr.fsetp.abs_a) {
op_a = "abs(" + op_a + ')';
}
std::string op_b{};
std::string op_b;
if (instr.is_b_imm) {
if (instr.fsetp.neg_b) {
// Only the immediate version of fsetp has a neg_b bit.
op_b += '-';
}
op_b += '(' + GetImmediate19(instr) + ')';
} else {
if (instr.is_b_gpr) {
@ -2945,33 +2938,24 @@ private:
break;
}
case OpCode::Type::FloatSet: {
std::string op_a = instr.fset.neg_a ? "-" : "";
op_a += regs.GetRegisterAsFloat(instr.gpr8);
const std::string op_a = GetOperandAbsNeg(regs.GetRegisterAsFloat(instr.gpr8),
instr.fset.abs_a != 0, instr.fset.neg_a != 0);
if (instr.fset.abs_a) {
op_a = "abs(" + op_a + ')';
}
std::string op_b = instr.fset.neg_b ? "-" : "";
std::string op_b;
if (instr.is_b_imm) {
const std::string imm = GetImmediate19(instr);
if (instr.fset.neg_imm)
op_b += "(-" + imm + ')';
else
op_b += imm;
op_b = imm;
} else {
if (instr.is_b_gpr) {
op_b += regs.GetRegisterAsFloat(instr.gpr20);
op_b = regs.GetRegisterAsFloat(instr.gpr20);
} else {
op_b += regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
op_b = regs.GetUniform(instr.cbuf34.index, instr.cbuf34.offset,
GLSLRegister::Type::Float);
}
}
if (instr.fset.abs_b) {
op_b = "abs(" + op_b + ')';
}
op_b = GetOperandAbsNeg(op_b, instr.fset.abs_b != 0, instr.fset.neg_b != 0);
// The fset instruction sets a register to 1.0 or -1 (depending on the bf bit) if the
// condition is true, and to 0 otherwise.