microblaze: Handle singlestepping over direct jmps

Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@petalogix.com>

target-microblaze/translate.c

@@ -1715,9 +1715,13 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb,
     t_sync_flags(dc);
 
     if (unlikely(env->singlestep_enabled)) {
-        t_gen_raise_exception(dc, EXCP_DEBUG);
-        if (dc->is_jmp == DISAS_NEXT)
+        TCGv_i32 tmp = tcg_const_i32(EXCP_DEBUG);
+
+        if (dc->is_jmp != DISAS_JUMP) {
             tcg_gen_movi_tl(cpu_SR[SR_PC], npc);
+        }
+        gen_helper_raise_exception(tmp);
+        tcg_temp_free_i32(tmp);
     } else {
         switch(dc->is_jmp) {
             case DISAS_NEXT: