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mode7: one last optimization to rasterbars

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Vince Weaver
2018-01-31 01:09:12 -05:00
parent d246bc82a1
commit cbceb40560
2 changed files with 4 additions and 0 deletions
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mode7/mode7.dsk
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mode7/rasterbars.s
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@@ -222,6 +222,9 @@ row_color:
.byte $00,$00,$00,$00,$00, $00,$00,$00,$00,$00 .byte $00,$00,$00,$00,$00, $00,$00,$00,$00,$00
; arithmatically shifted right by 4 ; arithmatically shifted right by 4
; FIXME: exploit symmetry and get rid of 3/4 of this table
; possibly not worth the extra code
fine_sine: fine_sine:
.byte $00 ; 0.000000 .byte $00 ; 0.000000
.byte $01 ; 0.098017 .byte $01 ; 0.098017
@@ -256,6 +259,7 @@ fine_sine:
.byte $03 ; 0.195090 .byte $03 ; 0.195090
.byte $01 ; 0.098017 .byte $01 ; 0.098017
.byte $00 ; 0.000000 .byte $00 ; 0.000000
.byte $FE ; -0.098017 .byte $FE ; -0.098017
.byte $FC ; -0.195090 .byte $FC ; -0.195090
.byte $FB ; -0.290285 .byte $FB ; -0.290285