Add empty tape reader checking

2022-08-15 17:19:57 +03:00 · 2022-08-15 17:19:57 +03:00 · 8615d52cd6
parent ec3cf94c06
commit 8615d52cd6
1 changed files with 4 additions and 0 deletions
--- a/gidubba.asm
+++ b/gidubba.asm
@ -569,6 +569,10 @@ chrsto: store   buffer + 100, r1
        load    r2, sub
        breq    r1, r2, redend

+        ;Check for empty tape reader
+        xor     r2, r2
+        breq    r1, r2, redend
+
        ;Increment the save address
        ;Load the address
        load    r0, chrsto + 1