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-rw-r--r--src/shader_recompiler/frontend/maxwell/translate/impl/vote.cpp54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/vote.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/vote.cpp
new file mode 100644
index 000000000..7ce370f09
--- /dev/null
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/vote.cpp
@@ -0,0 +1,54 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
+
+namespace Shader::Maxwell {
+namespace {
+enum class VoteOp : u64 {
+ ALL,
+ ANY,
+ EQ,
+};
+
+[[nodiscard]] IR::U1 VoteOperation(IR::IREmitter& ir, const IR::U1& pred, VoteOp vote_op) {
+ switch (vote_op) {
+ case VoteOp::ALL:
+ return ir.VoteAll(pred);
+ case VoteOp::ANY:
+ return ir.VoteAny(pred);
+ case VoteOp::EQ:
+ return ir.VoteEqual(pred);
+ default:
+ throw NotImplementedException("Invalid VOTE op {}", vote_op);
+ }
+}
+
+void Vote(TranslatorVisitor& v, u64 insn) {
+ union {
+ u64 insn;
+ BitField<0, 8, IR::Reg> dest_reg;
+ BitField<39, 3, IR::Pred> pred_a;
+ BitField<42, 1, u64> neg_pred_a;
+ BitField<45, 3, IR::Pred> pred_b;
+ BitField<48, 2, VoteOp> vote_op;
+ } const vote{insn};
+
+ const IR::U1 vote_pred{v.ir.GetPred(vote.pred_a, vote.neg_pred_a != 0)};
+ v.ir.SetPred(vote.pred_b, VoteOperation(v.ir, vote_pred, vote.vote_op));
+ v.X(vote.dest_reg, v.ir.SubgroupBallot(vote_pred));
+}
+} // Anonymous namespace
+
+void TranslatorVisitor::VOTE(u64 insn) {
+ Vote(*this, insn);
+}
+
+void TranslatorVisitor::VOTE_vtg(u64) {
+ LOG_WARNING(Shader, "(STUBBED) called");
+}
+
+} // namespace Shader::Maxwell