Saved 6 bytes by using popptr1.

2018-05-21 16:21:45 +02:00
parent 81b3c16c7e
commit c40ae4d774
3 changed files with 17 additions and 20 deletions
--- a/libsrc/cbm/write.s
+++ b/libsrc/cbm/write.s
@@ -61,10 +61,10 @@
 ; Output the next character from the buffer

@L0:    ldy     #0
-        lda     (ptr2),y
-        inc     ptr2
+        lda     (ptr1),y
+        inc     ptr1
        bne     @L1
-        inc     ptr2+1          ; A = *buf++;
+        inc     ptr1+1          ; A = *buf++;
@L1:    jsr     BSOUT

 ; Check the status
@@ -84,9 +84,9 @@

 ; Decrement count

-@L2:    inc     ptr1
+@L2:    inc     ptr2
        bne     @L0
-        inc     ptr1+1
+        inc     ptr2+1
        bne     @L0

 ; Wrote all chars or disk full. Close the output channel