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shader_decode: Implement PSET

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This commit is contained in:
ReinUsesLisp
2018-12-23 17:07:49 -03:00
parent dd91650aaf
commit 7e13e8bfcb
1 changed files with 16 additions and 1 deletions
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17
src/video_core/shader/decode/predicate_set_register.cpp
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@@ -16,7 +16,22 @@ u32 ShaderIR::DecodePredicateSetRegister(BasicBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
const auto opcode = OpCode::Decode(instr);
UNIMPLEMENTED();
UNIMPLEMENTED_IF_MSG(instr.generates_cc,
"Condition codes generation in PSET is not implemented");
const Node op_a = GetPredicate(instr.pset.pred12, instr.pset.neg_pred12 != 0);
const Node op_b = GetPredicate(instr.pset.pred29, instr.pset.neg_pred29 != 0);
const Node first_pred = Operation(GetPredicateCombiner(instr.pset.cond), op_a, op_b);
const Node second_pred = GetPredicate(instr.pset.pred39, instr.pset.neg_pred39 != 0);
const OperationCode combiner = GetPredicateCombiner(instr.pset.op);
const Node result = Operation(combiner, first_pred, second_pred);
const Node true_value = instr.pset.bf ? Immediate(1.0f) : Immediate(0xffffffff);
const Node false_value = instr.pset.bf ? Immediate(0.0f) : Immediate(0);
const Node value = Operation(OperationCode::Select, PRECISE, true_value, false_value);
SetRegister(bb, instr.gpr0, value);
return pc;
}