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authorbunnei <bunneidev@gmail.com>2020-01-01 02:37:16 +0100
committerGitHub <noreply@github.com>2020-01-01 02:37:16 +0100
commit028b2718ed9ce493058aa196d1b349163fb1d69a (patch)
tree96176246200b80433a845b64983f4f802f1a9504 /src
parentMerge pull request #3248 from ReinUsesLisp/vk-image (diff)
parentshader/p2r: Implement P2R Pr (diff)
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Diffstat (limited to 'src')
-rw-r--r--src/video_core/engines/shader_bytecode.h4
-rw-r--r--src/video_core/shader/decode/register_set_predicate.cpp60
2 files changed, 47 insertions, 17 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index 412ca5551..57b57c647 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -1051,7 +1051,7 @@ union Instruction {
BitField<40, 1, R2pMode> mode;
BitField<41, 2, u64> byte;
BitField<20, 7, u64> immediate_mask;
- } r2p;
+ } p2r_r2p;
union {
BitField<39, 3, u64> pred39;
@@ -1801,6 +1801,7 @@ public:
PSET,
CSETP,
R2P_IMM,
+ P2R_IMM,
XMAD_IMM,
XMAD_CR,
XMAD_RC,
@@ -2106,6 +2107,7 @@ private:
INST("0101000010010---", Id::PSETP, Type::PredicateSetPredicate, "PSETP"),
INST("010100001010----", Id::CSETP, Type::PredicateSetPredicate, "CSETP"),
INST("0011100-11110---", Id::R2P_IMM, Type::RegisterSetPredicate, "R2P_IMM"),
+ INST("0011100-11101---", Id::P2R_IMM, Type::RegisterSetPredicate, "P2R_IMM"),
INST("0011011-00------", Id::XMAD_IMM, Type::Xmad, "XMAD_IMM"),
INST("0100111---------", Id::XMAD_CR, Type::Xmad, "XMAD_CR"),
INST("010100010-------", Id::XMAD_RC, Type::Xmad, "XMAD_RC"),
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;