A64: Implement ZIP1

src/frontend/A64/translate/impl/simd_permute.cpp

@@ -0,0 +1,39 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2018 MerryMage
+ * This software may be used and distributed according to the terms of the GNU
+ * General Public License version 2 or any later version.
+ */
+
+#include "frontend/A64/translate/impl/impl.h"
+
+namespace Dynarmic::A64 {
+
+bool TranslatorVisitor::ZIP1(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
+    if (size == 0b11 && !Q) {
+        return ReservedValue();
+    }
+
+    const size_t datasize = Q ? 128 : 64;
+
+    const IR::U128 result = [&] {
+        const IR::U128 operand1 = V(datasize, Vn);
+        const IR::U128 operand2 = V(datasize, Vm);
+
+        switch (size.ZeroExtend()) {
+        case 0b00:
+            return ir.VectorInterleaveLower8(operand1, operand2);
+        case 0b01:
+            return ir.VectorInterleaveLower16(operand1, operand2);
+        case 0b10:
+            return ir.VectorInterleaveLower32(operand1, operand2);
+        case 0b11:
+        default:
+            return ir.VectorInterleaveLower64(operand1, operand2);
+        }
+    }();
+
+    V(datasize, Vd, result);
+    return true;
+}
+
+} // namespace Dynarmic::A64