git.y1.nz

commit c982d5c5a985f10eeaf505cd07013337e56426d8
parent f5d12b3ac77e98604987bcabba4ee1d418efa2e8
Author: Michel Iwaniec <46843052+michel-iwaniec@users.noreply.github.com>
Date:   Fri, 31 May 2024 03:14:50 +0100

NES: Fix problem with deferred LCD isr special-case at scanline 0 not working unless _lcd_scanline was changed by LCD handler (#685)

* Move label jumped to upwards, so if-less-than-reached-scanline check still happens for special-case
Diffstat:
M
gbdk-lib/libc/targets/mos6502/nes/crt0.s
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gbdk-lib/libc/targets/mos6502/nes/crt0.s b/gbdk-lib/libc/targets/mos6502/nes/crt0.s
@@ -442,10 +442,10 @@ _vsync::
 1$:
     pla
     sta *.lcd_scanline_previous
+2$:
     ; We are done if next scanline is <= the previous one
     cmp *__lcd_scanline
     bcs _wait_vbl_done_waitForNextFrame
-2$:
     ;
     ldy __lcd_isr_num_calls
     lda *__lcd_scanline

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