Fix: CSA was not quite right

diff --git a/util/int/do_misc.c b/util/int/do_misc.c
index b94fa00..f558b83 100644 (file)
--- a/util/int/do_misc.c
+++ b/util/int/do_misc.c
@@ -436,6 +436,9 @@ PRIVATE index_jump(nbytes)
 
        if (t_index >= 0 && t_index <= mem_lds(cdp + nbytes + psize, nbytes)) {
                nPC = mem_ldip(cdp + (2 * nbytes) + ((t_index + 1) * psize));
+               if (nPC == 0) {
+                       trap(ECASE);
+               }
        }
        else if ((nPC = mem_ldip(cdp)) == 0) {
                trap(ECASE);