Added "popptr1" which is of common use to save some bytes.

2018-05-20 15:30:18 +02:00
parent 3a6430b13d
commit c95ed4b8b5
35 changed files with 113 additions and 151 deletions
--- a/libsrc/common/strcmp.s
+++ b/libsrc/common/strcmp.s
@@ -5,16 +5,14 @@
 ;

        .export         _strcmp
-        .import         popax
+        .import         popptr1
        .importzp       ptr1, ptr2

 _strcmp:
        sta     ptr2            ; Save s2
        stx     ptr2+1
-        jsr     popax           ; Get s1
-        sta     ptr1
-        stx     ptr1+1
-        ldy     #0
+        jsr     popptr1         ; Get s1
+        ;ldy     #0             ; Y=0 guaranteed by popptr1

 loop:   lda     (ptr1),y
        cmp     (ptr2),y