isa/examples: adapted sum

diff --git a/2_isa/src/sum.s b/2_isa/src/sum.s
index acafa3726fbb7792c0bf16a0168a3baa2af8dbf7..6ee9fa3dd6880ee8764245b177fb489f266bac2f 100644 (file)
--- a/2_isa/src/sum.s
+++ b/2_isa/src/sum.s
@@ -13,7 +13,8 @@ loop:
        ldw r4, 0(r2);
        ;sum += arr[i];
        add r0, r0, r4;
-       subi r3, r3, 1;
-       retze-;
        addi r2, r2, 4;
-       branch+ loop;
+       subi r3, r3, 1;
+       branchnz+ loop;
+
+       ret;