armemu: Fix SXTAB

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core/arm/interpreter/armemu.cpp b/src/core/arm/interpreter/armemu.cpp
index 843323293..cffbae7e7 100644
--- a/src/core/arm/interpreter/armemu.cpp
+++ b/src/core/arm/interpreter/armemu.cpp
@@ -6044,7 +6044,7 @@ L_stm_s_takeabort:
                                 break;
                         }
 
-                        Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFF);
+                        Rm = ((state->Reg[BITS(0, 3)] >> ror) & 0xFF) | ((state->Reg[BITS(0, 3)] << (32 - ror)) & 0xFF) & 0xFF;
                         if (Rm & 0x80)
                                 Rm |= 0xffffff00;
 
@@ -6053,7 +6053,7 @@ L_stm_s_takeabort:
                                 state->Reg[BITS(12, 15)] = Rm;
                         else
                                 /* SXTAB */
-                                state->Reg[BITS(12, 15)] += Rm;
+                                state->Reg[BITS(12, 15)] = state->Reg[BITS(16, 19)] + Rm;
 
                         return 1;
                 }