Fix Atari buffer overrun on keyboard EOF

2026-04-19 09:28:25 +00:00 · 2025-05-14 14:37:51 -04:00
parent 84094ae2b3
commit 9cdba1b6d8
1 changed files with 2 additions and 1 deletions
@@ -147,6 +147,7 @@ icbll_copy:
        sta     dataptr+1
        lda     ICBLL,x
        sta     copylen
+        beq     copied          ; length = 0 if EOF
        pha                     ; remember for return value
        ldy     #0
        ldx     index
@@ -159,7 +160,7 @@ copy:   lda     linebuf,x
        bne     copy

        pla                     ; length
-        pha                     ; save length to return at okdone
+copied: pha                     ; save length to return at okdone

        clc
        adc     index