Use more compact loops.

2020-11-01 22:59:07 +01:00
parent 99c0815cdb
commit f59cb9af06
13 changed files with 90 additions and 94 deletions
--- a/libsrc/cbm/rwcommon.s
+++ b/libsrc/cbm/rwcommon.s
@@ -21,11 +21,11 @@

 .proc   rwcommon

-        eor     #$FF
-        sta     ptr2
-        txa
-        eor     #$FF
-        sta     ptr2+1          ; Remember -count-1
+        inx
+        stx     ptr2+1
+        tax
+        inx
+        stx     ptr2            ; Save count with each byte incremented separately

        jsr     popptr1         ; Get buf to ptr1, Y=0 by call