From ce8dcdab1e500e9599c5ae86134c4a33568e9b09 Mon Sep 17 00:00:00 2001
From: sunho <ksunhokim123@naver.com>
Date: Mon, 17 May 2021 23:41:10 +0900
Subject: [PATCH] vita3k: STR n == t preindex writeback is defined in vita cpu

---
 .../A32/translate/impl/thumb32_store_single_data_item.cpp      | 3 ++-
 1 file changed, 2 insertions(+), 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
index 93c383757..23ec89ab0 100644
--- 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);