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Logic additions for basic+experimental

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aerinon
2020-02-21 16:26:18 -07:00
parent 6f3040415d
commit 7064b1de77
8 changed files with 122 additions and 63 deletions
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9
asm/edges.asm
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@@ -34,10 +34,11 @@ LoadEdgeRoomHorz:
lda $a0 : and.b #$F0 : lsr #3 : sta $0603 : inc : sta $0607
lda $aa : asl : tax ; current quad as 0/4
lda $04 : and #$40 : bne +
lda $603 : sta $00 : stz $01 : bra ++
+ lda $607 : sta $00 : lda #$02 : sta $01
++
++ ; $01 now contains 0 or 2
lda $00 : sta $21 : sta $0601 : sta $0605
lda $01 : sta $aa : lsr : sta $01 : stz $00
lda $0a : sta $20
@@ -70,7 +71,7 @@ LoadEdgeRoomHorz:
.done sta $ab : sep #$30
lda $0e : asl : ora $ac : sta $ac
lda $0603 : sta $e9
lda $0603, x : sta $e9
lda $04 : and #$80 : lsr #4 : sta $ee ; layer stuff
rts
@@ -82,7 +83,7 @@ LoadEdgeRoomVert:
ldy #$01 : jsr ShiftVariablesMainDir
lda $a0 : and.b #$0f : asl : sta $060b : inc : sta $060f
lda $a9 : asl #2 : tax ; current quad as 0/4
lda $04 : and #$20 : bne +
lda $60b : sta $00 : stz $01 : bra ++
+ lda $60f : sta $00 : lda #$01 : sta $01
@@ -119,7 +120,7 @@ LoadEdgeRoomVert:
.done sta $ab : sep #$30
lda $0e : asl : ora $ac : sta $ac
lda $060b : sta $e3
lda $060b, x : sta $e3
lda $04 : and #$10 : lsr #4 : sta $ee ; layer stuff
rts