From 3bb6f784913888d848ed74eeb5d22934cc4448da Mon Sep 17 00:00:00 2001 From: codemann8 Date: Thu, 24 Jun 2021 14:47:40 -0500 Subject: [PATCH] Fixed VRAM issue --- owrando.asm | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/owrando.asm b/owrando.asm index 7428251..351ba80 100644 --- a/owrando.asm +++ b/owrando.asm @@ -231,18 +231,17 @@ OWNewDestination: inc : pha : lda $06 : and #$fe00 : !add 1,s : sta $06 : pla ; adjust and set other VRAM addresses - lda OWMode : and #$00ff : bne .modifyOtherVram - lda.w $0006,x : pha : lda $06 : !sub 1,s - jsl DivideByTwoPreserveSign : jsl DivideByTwoPreserveSign : jsl DivideByTwoPreserveSign : jsl DivideByTwoPreserveSign : pha ; number of tiles - lda $418 : dec #2 : bmi + - pla : pea $0000 : bra ++ ;pla : asl #7 : pha : bra ++ ; y-axis shifts VRAM by increments of 0x80 (disabled for now) - + pla : asl : pha ; x-axis shifts VRAM by increments of 0x02 - ++ lda $84 : !add 1,s : sta $84 : pla : pla - .modifyOtherVram - LDA $84 : SEC : SBC #$0400 : AND #$0F00 : ASL : XBA : STA $88 - LDA $84 : SEC : SBC #$0010 : AND #$003E : LSR : STA $86 + lda.w $0006,x : pha : lda $06 : !sub 1,s + jsl DivideByTwoPreserveSign : jsl DivideByTwoPreserveSign : jsl DivideByTwoPreserveSign : jsl DivideByTwoPreserveSign : pha ; number of tiles + lda $418 : dec #2 : bmi + + pla : pea $0000 : bra ++ ;pla : asl #7 : pha : bra ++ ; y-axis shifts VRAM by increments of 0x80 (disabled for now) + + pla : asl : pha ; x-axis shifts VRAM by increments of 0x02 + ++ lda $84 : !add 1,s : sta $84 : pla : pla .adjustMainAxis + LDA $84 : SEC : SBC #$0400 : AND #$0F00 : ASL : XBA : STA $88 ; vram + LDA $84 : SEC : SBC #$0010 : AND #$003E : LSR : STA $86 + pla : pla : sep #$10 : ldy $418 ldx OWCoordIndex,y : lda $20,x : and #$fe00 : pha lda $20,x : and #$01ff : pha ;s1 = relative cur, s3 = ow cur