From b5dbd6f2a27cc85a7262920942dd1c78fff21bb5 Mon Sep 17 00:00:00 2001 From: Normmatt Date: Wed, 17 Dec 2014 02:54:24 -0500 Subject: [PATCH] armemu: Fix SXTAB --- src/core/arm/interpreter/armemu.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/core/arm/interpreter/armemu.cpp b/src/core/arm/interpreter/armemu.cpp index 8433232933..cffbae7e78 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; }