armemu: Fix missing Q flag check for SMLSD.

11 years ago · bee4ff8454
1 changed files with 6 additions and 2 deletions
--- a/src/core/arm/interpreter/armemu.cpp
+++ b/src/core/arm/interpreter/armemu.cpp
@ -6480,9 +6480,13 @@ L_stm_s_takeabort:
                // SMUSD and SMLSD
                else {
                    state->Reg[rd_idx] = product1 - product2;
-                    
-                    if (BITS(12, 15) != 15)
+
+                    if (BITS(12, 15) != 15) {
                        state->Reg[rd_idx] += state->Reg[ra_idx];
+
+                        if (ARMul_AddOverflowQ(product1 - product2, state->Reg[ra_idx]))
+                            SETQ;
+                    }
                }

                return 1;