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/longjmp.s
+++ b/libsrc/common/longjmp.s
@@ -6,7 +6,7 @@
 ;

        .export         _longjmp
-        .import         popax
+        .import         popptr1
        .importzp       sp, ptr1, ptr2

 _longjmp:
@@ -16,10 +16,8 @@ _longjmp:
        bne     @L1
        inc     ptr2            ; 0 is illegal, according to the standard ...
                                ; ... and, must be replaced by 1
-@L1:    jsr     popax           ; get buf
-        sta     ptr1
-        stx     ptr1+1
-        ldy     #0
+@L1:    jsr     popptr1         ; get buf
+        ; ldy     #0            is guaranteed by popptr1

 ; Get the old parameter stack