vita3k: STR n == t preindex writeback is defined in vita cpu

Vita3K · Mar 6, 2024 · ce8dcda · ce8dcda
1 parent fa6cc2e
commit ce8dcda
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/dynarmic/frontend/A32/translate/impl/thumb32_store_single_data_item.cpp b/src/dynarmic/frontend/A32/translate/impl/thumb32_store_single_data_item.cpp
@@ -171,7 +171,8 @@ bool TranslatorVisitor::thumb32_STR_imm_1(Reg n, Reg t, bool P, bool U, Imm<8> i
     if (n == Reg::PC) {
         return UndefinedInstruction();
     }
-    if (t == Reg::PC || n == t) {
+    // VITA3K: n == t preindex writeback is defined in vita cpu
+    if (t == Reg::PC || (!P && n == t)) {
         return UnpredictableInstruction();
     }
     return StoreImmediate(*this, n, t, P, U, true, Imm<12>{imm8.ZeroExtend()}, StoreImmWordFn);