Merge pull request #2510 from polluks/better_waitvsync

Faster waitvsync
2024-09-21 10:37:28 +00:00 · 2024-09-08 16:09:23 +02:00 · 2024-09-08 16:09:23 +02:00 · e6ff8d9301
commit e6ff8d9301
parent 38038fd0d3 461554e616
2 changed files with 5 additions and 6 deletions
--- a/libsrc/c128/waitvsync.s
+++ b/libsrc/c128/waitvsync.s
@ -23,8 +23,8 @@ _waitvsync:

@c80:
        ;FIXME: do we have to switch banks?
+        lda     #$20
@l3:
-        lda     VDC_INDEX
-        and     #$20
+        and     VDC_INDEX
        beq     @l3
        rts
--- a/libsrc/pet/waitvsync.s
+++ b/libsrc/pet/waitvsync.s
@ -9,8 +9,7 @@
        .include        "pet.inc"

 _waitvsync:
-@l1:
-        lda     VIA_PB
-        and     #%00100000
-        bne     @l1
+        lda     #%00100000
+:       and     VIA_PB
+        bne     :-
        rts