Clear SR_M on a hardware interrupt.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2922 c046a42c-6fe2-441c-8c8c-71466251a162

target-m68k/op_helper.c

@@ -148,6 +148,7 @@ void do_interrupt(int is_hw)
     env->sr |= SR_S;
     if (is_hw) {
         env->sr = (env->sr & ~SR_I) | (env->pending_level << SR_I_SHIFT);
+        env->sr &= ~SR_M;
     }
     /* Jump to vector.  */
     env->pc = ldl_kernel(env->vbr + vector);