From ec111683cd8148f42cd835d4eb3730d4014476cf Mon Sep 17 00:00:00 2001
From: PavelBARABANOV <pavelbarabanov94@gmail.com>
Date: Sat, 12 Sep 2026 02:19:48 +0300
Subject: [PATCH] [dynarmic] use UBFX + CBNZ instead of TBNZ for marked bit

---
 src/dynarmic/src/dynarmic/backend/arm64/emit_arm64_memory.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/dynarmic/src/dynarmic/backend/arm64/emit_arm64_memory.cpp b/src/dynarmic/src/dynarmic/backend/arm64/emit_arm64_memory.cpp
index 1f758a190a..302a475a78 100644
--- a/src/dynarmic/src/dynarmic/backend/arm64/emit_arm64_memory.cpp
+++ b/src/dynarmic/src/dynarmic/backend/arm64/emit_arm64_memory.cpp
@@ -274,8 +274,8 @@ std::pair<oaknut::XReg, oaknut::XReg> InlinePageTableEmitVAddrLookup(oaknut::Cod
     code.LDR(Xscratch0, Xpagetable, Xscratch0);
 
     if (ctx.conf.page_table_marked_bit) {
-        // check for marked bit
-        code.TBNZ(Xscratch0, *ctx.conf.page_table_marked_bit, *fallback);
+        code.UBFX(Xscratch1, Xscratch0, *ctx.conf.page_table_marked_bit, 1);
+        code.CBNZ(Xscratch1, *fallback);
     }
 
     if (ctx.conf.page_table_pointer_mask != 0) {