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- pixLUT:
- .db $80,$40,$20,$10,$08,$04,$02,$01
- GetPixelLoc:
- ;Input:
- ; b is X
- ; c is y
- ;Output:
- ; HL points to byte
- ; A is the mask
- ; nc if not computed, c if computed
- ;Speed: 192+17{1,2,3,4,5,6,7,8}
- ;Avg: 268.5cc
- ;185cc
- ld a,c
- cp 64
- ret nc
- add a,a
- add a,a
- ld c,a
- ld a,b
- cp 96
- ret nc
- ld b,0
- ld hl,(gbuf_temp)
- add hl,bc
- add hl,bc
- add hl,bc
- ld c,a
- srl c
- srl c
- srl c
- add hl,bc
- and 7
- ld b,pixLUT>>8
- add a,pixLUT&255
- ld c,a
- #if pixLUT&255>249
- jr nc,$+3
- inc b
- #endif
- ld a,(bc)
- scf
- ret
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