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shader/p2r: Implement P2R Pr 

P2R dumps predicate or condition codes state to a register. This is
useful for unit testing.
This commit is contained in:
ReinUsesLisp 2019-12-20 17:56:30 -03:00
parent cf27b59493
commit 38d3a48873
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GPG Key ID: 2DFC508897B39CFE
1 changed files with 15 additions and 1 deletions
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16
src/video_core/shader/decode/register_set_predicate.cpp
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@ -34,10 +34,11 @@ u32 ShaderIR::DecodeRegisterSetPredicate(NodeBlock& bb, u32 pc) {
}
}();
const auto offset = static_cast<u32>(instr.p2r_r2p.byte) * 8;
switch (opcode->get().GetId()) {
case OpCode::Id::R2P_IMM: {
const Node mask = GetRegister(instr.gpr8);
const auto offset = static_cast<u32>(instr.p2r_r2p.byte) * 8;
for (u64 pred = 0; pred < NUM_PROGRAMMABLE_PREDICATES; ++pred) {
const auto shift = static_cast<u32>(pred);
@ -55,6 +56,19 @@ u32 ShaderIR::DecodeRegisterSetPredicate(NodeBlock& bb, u32 pc) {
}
break;
}
case OpCode::Id::P2R_IMM: {
Node value = Immediate(0);
for (u64 pred = 0; pred < NUM_PROGRAMMABLE_PREDICATES; ++pred) {
Node bit = Operation(OperationCode::Select, GetPredicate(pred), Immediate(1U << pred),
Immediate(0));
value = Operation(OperationCode::UBitwiseOr, std::move(value), std::move(bit));
}
value = Operation(OperationCode::UBitwiseAnd, std::move(value), apply_mask);
value = BitfieldInsert(GetRegister(instr.gpr8), std::move(value), offset, 8);
SetRegister(bb, instr.gpr0, std::move(value));
break;
}
default:
UNIMPLEMENTED_MSG("Unhandled P2R/R2R instruction: {}", opcode->get().GetName());
break;