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-rw-r--r--src/video_core/shader/decode/register_set_predicate.cpp60
1 files changed, 44 insertions, 16 deletions
diff --git a/src/video_core/shader/decode/register_set_predicate.cpp b/src/video_core/shader/decode/register_set_predicate.cpp
index e6c9d287e..8d54cce34 100644
--- a/src/video_core/shader/decode/register_set_predicate.cpp
+++ b/src/video_core/shader/decode/register_set_predicate.cpp
@@ -13,37 +13,65 @@ namespace VideoCommon::Shader {
using Tegra::Shader::Instruction;
using Tegra::Shader::OpCode;
+namespace {
+constexpr u64 NUM_PROGRAMMABLE_PREDICATES = 7;
+}
+
u32 ShaderIR::DecodeRegisterSetPredicate(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
const auto opcode = OpCode::Decode(instr);
- UNIMPLEMENTED_IF(instr.r2p.mode != Tegra::Shader::R2pMode::Pr);
+ UNIMPLEMENTED_IF(instr.p2r_r2p.mode != Tegra::Shader::R2pMode::Pr);
- const Node apply_mask = [&]() {
+ const Node apply_mask = [&] {
switch (opcode->get().GetId()) {
case OpCode::Id::R2P_IMM:
- return Immediate(static_cast<u32>(instr.r2p.immediate_mask));
+ case OpCode::Id::P2R_IMM:
+ return Immediate(static_cast<u32>(instr.p2r_r2p.immediate_mask));
default:
UNREACHABLE();
- return Immediate(static_cast<u32>(instr.r2p.immediate_mask));
+ return Immediate(0);
}
}();
- const Node mask = GetRegister(instr.gpr8);
- const auto offset = static_cast<u32>(instr.r2p.byte) * 8;
- constexpr u32 programmable_preds = 7;
- for (u64 pred = 0; pred < programmable_preds; ++pred) {
- const auto shift = static_cast<u32>(pred);
+ 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 Node apply_compare = BitfieldExtract(apply_mask, shift, 1);
- const Node condition =
- Operation(OperationCode::LogicalUNotEqual, apply_compare, Immediate(0));
+ for (u64 pred = 0; pred < NUM_PROGRAMMABLE_PREDICATES; ++pred) {
+ const auto shift = static_cast<u32>(pred);
- const Node value_compare = BitfieldExtract(mask, offset + shift, 1);
- const Node value = Operation(OperationCode::LogicalUNotEqual, value_compare, Immediate(0));
+ const Node apply_compare = BitfieldExtract(apply_mask, shift, 1);
+ const Node condition =
+ Operation(OperationCode::LogicalUNotEqual, apply_compare, Immediate(0));
- const Node code = Operation(OperationCode::LogicalAssign, GetPredicate(pred), value);
- bb.push_back(Conditional(condition, {code}));
+ const Node value_compare = BitfieldExtract(mask, offset + shift, 1);
+ const Node value =
+ Operation(OperationCode::LogicalUNotEqual, value_compare, Immediate(0));
+
+ const Node code = Operation(OperationCode::LogicalAssign, GetPredicate(pred), value);
+ bb.push_back(Conditional(condition, {code}));
+ }
+ 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;
}
return pc;