budge3d: convert to assembly
This commit is contained in:
Vince Weaver
parent
97bf08906e
commit
f73b03e821
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@ -7,10 +7,9 @@ EMPTY_DISK = ../../../empty_disk
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all: budge3d.dsk
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budge3d.dsk: HELLO TEST SHIP_CUBE
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budge3d.dsk: HELLO SHIP_CUBE
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cp $(EMPTY_DISK)/empty.dsk budge3d.dsk
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$(DOS33) -y budge3d.dsk SAVE A HELLO
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$(DOS33) -y budge3d.dsk SAVE A TEST
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$(DOS33) -y budge3d.dsk BSAVE -a 0x300 SHIP_CUBE
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@ -19,10 +18,6 @@ budge3d.dsk: HELLO TEST SHIP_CUBE
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HELLO: hello.bas
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$(TOKENIZE) < hello.bas > HELLO
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###
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TEST: test.bas
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$(TOKENIZE) < test.bas > TEST
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####
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@ -32,9 +27,9 @@ SHIP_CUBE: ship_cube.o
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ship_cube.o: ship_cube.s \
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zp.inc hardware.inc \
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shapes.s math_constants.s hgr_tables.s \
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hgr_textgen.s scale_constants.s
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scale_constants.s
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ca65 -o ship_cube.o ship_cube.s -l ship_cube.lst
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####
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clean:
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rm -f *~ *.o *.lst HELLO SHIP_CUBE TEST
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rm -f *~ *.o *.lst HELLO SHIP_CUBE
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@ -0,0 +1,35 @@
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include ../../../../Makefile.inc
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DOS33 = ../../../../utils/dos33fs-utils/dos33
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TOKENIZE = ../../../../utils/asoft_basic-utils/tokenize_asoft
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LINKER_SCRIPTS = ../../../../linker_scripts
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EMPTY_DISK = ../../../../empty_disk
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all: budge3d.dsk
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budge3d.dsk: HELLO SHIP_CUBE
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cp $(EMPTY_DISK)/empty.dsk budge3d.dsk
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$(DOS33) -y budge3d.dsk SAVE A HELLO
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$(DOS33) -y budge3d.dsk BSAVE -a 0x300 SHIP_CUBE
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###
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HELLO: hello.bas
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$(TOKENIZE) < hello.bas > HELLO
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####
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SHIP_CUBE: ship_cube.o
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ld65 -o SHIP_CUBE ship_cube.o -C $(LINKER_SCRIPTS)/apple2_300.inc
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ship_cube.o: ship_cube.s \
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zp.inc hardware.inc \
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shapes.s math_constants.s hgr_tables.s \
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scale_constants.s
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ca65 -o ship_cube.o ship_cube.s -l ship_cube.lst
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####
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clean:
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rm -f *~ *.o *.lst HELLO SHIP_CUBE
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Binary file not shown.
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@ -0,0 +1,17 @@
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;CODE_arr = $6008 ; CODE array (dummy address)
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;X_arr = $602f ; X array (dummy address)
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;Y_arr = $6056 ; Y array (dummy address)
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;SCALE_arr = $607d ; SCALE array (dummy address)
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;XROT_arr = $60a4 ; XROT array (dummy address)
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;YROT_arr = $60cb ; YROT array (dummy address)
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;ZROT_arr = $60f2 ; ZROT array (dummy address)
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;SX_arr = $6119 ; SX array (dummy address)
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;SY_arr = $6140 ; SY array (dummy address)
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; soft switches
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TXTCLR = $c050 ; RW display graphics
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MIXCLR = $c052 ; RW display full screen
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TXTPAGE1 = $c054 ; RW display page 1
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TXTPAGE2 = $c055 ; RW display page 2 (or read/write aux mem)
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HIRES = $c057 ; RW display hi-res graphics
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@ -0,0 +1,2 @@
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10 PRINT CHR$ (4)"BRUN SHIP_CUBE"
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@ -0,0 +1,102 @@
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;
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; Divide-by-7 table. Used to divide the X coordinate (0-255) by 7, yielding a
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; byte offset for the hi-res screen column.
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;
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Div7Tab: ; 1400
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.byte $00,$00,$00,$00,$00,$00,$00,$01,$01,$01,$01,$01,$01,$01,$02,$02
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.byte $02,$02,$02,$02,$02,$03,$03,$03,$03,$03,$03,$03,$04,$04,$04,$04
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.byte $04,$04,$04,$05,$05,$05,$05,$05,$05,$05,$06,$06,$06,$06,$06,$06
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.byte $06,$07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$08,$08,$09
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.byte $09,$09,$09,$09,$09,$09,$0a,$0a,$0a,$0a,$0a,$0a,$0a,$0b,$0b,$0b
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.byte $0b,$0b,$0b,$0b,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0d,$0d,$0d,$0d,$0d
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.byte $0d,$0d,$0e,$0e,$0e,$0e,$0e,$0e,$0e,$0f,$0f,$0f,$0f,$0f,$0f,$0f
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.byte $10,$10,$10,$10,$10,$10,$10,$11,$11,$11,$11,$11,$11,$11,$12,$12
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.byte $12,$12,$12,$12,$12,$13,$13,$13,$13,$13,$13,$13,$14,$14,$14,$14
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.byte $14,$14,$14,$15,$15,$15,$15,$15,$15,$15,$16,$16,$16,$16,$16,$16
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.byte $16,$17,$17,$17,$17,$17,$17,$17,$18,$18,$18,$18,$18,$18,$18,$19
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.byte $19,$19,$19,$19,$19,$19,$1a,$1a,$1a,$1a,$1a,$1a,$1a,$1b,$1b,$1b
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.byte $1b,$1b,$1b,$1b,$1c,$1c,$1c,$1c,$1c,$1c,$1c,$1d,$1d,$1d,$1d,$1d
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.byte $1d,$1d,$1e,$1e,$1e,$1e,$1e,$1e,$1e,$1f,$1f,$1f,$1f,$1f,$1f,$1f
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.byte $20,$20,$20,$20,$20,$20,$20,$21,$21,$21,$21,$21,$21,$21,$22,$22
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.byte $22,$22,$22,$22,$22,$23,$23,$23,$23,$23,$23,$23,$24,$24,$24,$24
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;
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; Hi-res bit table. Converts the X coordinate (0-255) into a bit position
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; within a byte. (Essentially 2 to the power of the remainder of the coordinate
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; divided by 7.)
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;
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HiResBitTab: ; 1500
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
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.byte $01,$02,$04,$08
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;
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; Hi-res Y-coordinate lookup table, low byte. Values 0-191 are meaningful, 192-
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; 255 are junk.
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;
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YTableLo: ; 1600
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.byte $00,$00,$00,$00,$00,$00,$00,$00,$80,$80,$80,$80,$80,$80,$80,$80,$00,$00,$00,$00,$00,$00,$00,$00,$80,$80,$80,$80,$80,$80,$80,$80
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.byte $00,$00,$00,$00,$00,$00,$00,$00,$80,$80,$80,$80,$80,$80,$80,$80,$00,$00,$00,$00,$00,$00,$00,$00,$80,$80,$80,$80,$80,$80,$80,$80
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.byte $28,$28,$28,$28,$28,$28,$28,$28,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$28,$28,$28,$28,$28,$28,$28,$28,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$a8
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.byte $28,$28,$28,$28,$28,$28,$28,$28,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$28,$28,$28,$28,$28,$28,$28,$28,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$a8
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.byte $50,$50,$50,$50,$50,$50,$50,$50,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$50,$50,$50,$50,$50,$50,$50,$50,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$d0
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.byte $50,$50,$50,$50,$50,$50,$50,$50,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$50,$50,$50,$50,$50,$50,$50,$50,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$d0
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.align $0100 ; (64 bytes)
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;==============================================
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; Hi-res Y-coordinate lookup table, high byte.
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;==============================================
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YTableHi:
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.byte $00,$04,$08,$0c,$10,$14,$18,$1c
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.byte $00,$04,$08,$0c,$10,$14,$18,$1c
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.byte $01,$05,$09,$0d,$11,$15,$19,$1d
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.byte $01,$05,$09,$0d,$11,$15,$19,$1d
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.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
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.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
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.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
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.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
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.byte $00,$04,$08,$0c,$10,$14,$18,$1c
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.byte $00,$04,$08,$0c,$10,$14,$18,$1c
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.byte $01,$05,$09,$0d,$11,$15,$19,$1d
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.byte $01,$05,$09,$0d,$11,$15,$19,$1d
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.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
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.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
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.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
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.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
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.byte $00,$04,$08,$0c,$10,$14,$18,$1c
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.byte $00,$04,$08,$0c,$10,$14,$18,$1c
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.byte $01,$05,$09,$0d,$11,$15,$19,$1d
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.byte $01,$05,$09,$0d,$11,$15,$19,$1d
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.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
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.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
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.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
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.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
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.align $0100 ; (64 bytes)
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@ -0,0 +1,68 @@
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;
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; Math constants for rotation.
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;
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; To compute X * cos(theta), start by converting theta (0-27) into a table base
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; address (using the 28-byte tables RotIndexLo_cos / RotIndexHi_cos). Split the
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; X coordinate into nibbles, use the low 4 bits to index into the adjusted
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; RotTabLo pointer, and the high 4 bits to index into the adjusted RotTabHi
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; pointer. Add the values at those locations together.
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;
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; This is similar to the way the scale table works. See ScaleTableLo, below,
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; for a longer explanation of how the nibbles are used.
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;
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; As an example, suppose we have a point at (36,56), and we want to rotate it 90
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; degrees (rot=7). We use the RotIndex tables to get the table base addresses:
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; sin=$00/$00 ($1200/$1300), cos=$70/$07 ($1270/$1307). We split the
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; coordinates into nibbles without shifting ($24,$38 --> $20 $04, $30 $08), and
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; use the nibbles as indexes into the tables:
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;
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; X * cos(theta) = ($1274)+($1327) = $00+$00 = 0
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; Y * sin(theta) = ($1208)+($1330) = $08+$30 = 56
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; X * sin(theta) = ($1204)+($1320) = $04+$20 = 36
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; Y * cos(theta) = ($1278)+($1337) = $00+$00 = 0
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;
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; XC = X*cos(theta) - Y*sin(theta) = -56
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; YC = X*sin(theta) + Y*cos(theta) = 36
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;
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; which is exactly what we expected (counter-clockwise).
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;
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; The largest value from the index table is $EE, so that last 17 bytes in each
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; table are unused.
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;
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RotTabLo: ; 1200
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.byte $00,$01,$02,$03,$04,$05,$06,$07,$08,$09,$0a,$0b,$0c,$0d,$0e,$0f
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.byte $00,$01,$02,$03,$04,$05,$06,$07,$08,$09,$0a,$0b,$0c,$0d,$0e,$0f
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.byte $00,$01,$02,$03,$04,$05,$05,$06,$07,$08,$09,$0a,$0b,$0c,$0d,$0e
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.byte $00,$01,$02,$02,$03,$04,$05,$05,$06,$07,$08,$09,$09,$0a,$0b,$0c
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.byte $00,$01,$01,$02,$02,$03,$04,$04,$05,$06,$06,$07,$07,$08,$09,$09
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.byte $00,$00,$01,$01,$02,$02,$03,$03,$03,$04,$04,$05,$05,$06,$06,$07
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.byte $00,$00,$00,$01,$01,$01,$01,$02,$02,$02,$02,$02,$03,$03,$03,$03
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.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
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.byte $00,$00,$00,$ff,$ff,$ff,$ff,$fe,$fe,$fe,$fe,$fe,$fd,$fd,$fd,$fd
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.byte $00,$00,$ff,$ff,$fe,$fe,$fd,$fd,$fd,$fc,$fc,$fb,$fb,$fa,$fa,$f9
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.byte $00,$ff,$ff,$fe,$fe,$fd,$fc,$fc,$fb,$fa,$fa,$f9,$f9,$f8,$f7,$f7
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.byte $00,$ff,$fe,$fe,$fd,$fc,$fb,$fb,$fa,$f9,$f8,$f7,$f7,$f6,$f5,$f4
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.byte $00,$ff,$fe,$fd,$fc,$fb,$fb,$fa,$f9,$f8,$f7,$f6,$f5,$f4,$f3,$f2
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.byte $00,$ff,$fe,$fd,$fc,$fb,$fb,$fa,$f8,$f7,$f6,$f5,$f4,$f3,$f2,$f1
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.byte $00,$ff,$fe,$fd,$fc,$fb,$fa,$f9,$f8,$f7,$f6,$f5,$f4,$f3,$f2,$f1
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.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
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RotTabHi: ; 1300
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.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
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.byte $10,$10,$0e,$0d,$0a,$07,$04,$00,$fc,$f9,$f6,$f3,$f2,$f0,$f0,$00
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.byte $20,$1f,$1d,$19,$14,$0e,$07,$00,$f9,$f2,$ec,$e7,$e3,$e1,$e0,$00
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.byte $30,$2f,$2b,$26,$1e,$15,$0b,$00,$f5,$eb,$e2,$da,$d5,$d1,$d0,$00
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.byte $40,$3e,$3a,$32,$28,$1c,$0e,$00,$f2,$e4,$d8,$ce,$c6,$c2,$c0,$00
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.byte $50,$4e,$48,$3f,$32,$23,$12,$00,$ee,$dd,$ce,$c1,$b8,$b2,$b0,$00
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.byte $60,$5e,$56,$4b,$3c,$2a,$15,$00,$eb,$d6,$c4,$b5,$aa,$a2,$a0,$00
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.byte $70,$6d,$65,$58,$46,$31,$19,$00,$e7,$cf,$ba,$a8,$9b,$93,$90,$00
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.byte $80,$83,$8d,$9c,$b0,$c8,$e4,$00,$1c,$38,$50,$64,$73,$7d,$80,$00
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.byte $90,$93,$9b,$a8,$ba,$cf,$e7,$00,$19,$31,$46,$58,$65,$6d,$70,$00
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.byte $a0,$a2,$aa,$b5,$c4,$d6,$eb,$00,$15,$2a,$3c,$4b,$56,$5e,$60,$00
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.byte $b0,$b2,$b8,$c1,$ce,$dd,$ee,$00,$12,$23,$32,$3f,$48,$4e,$50,$00
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.byte $c0,$c2,$c6,$ce,$d8,$e4,$f2,$00,$0e,$1c,$28,$32,$3a,$3e,$40,$00
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.byte $d0,$d1,$d5,$da,$e2,$eb,$f5,$00,$0b,$15,$1e,$26,$2b,$2f,$30,$00
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.byte $e0,$e1,$e3,$e7,$ec,$f2,$f9,$00,$07,$0e,$14,$19,$1d,$1f,$20,$00
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.byte $f0,$f0,$f2,$f3,$f6,$f9,$fc,$00,$04,$07,$0a,$0d,$0e,$10,$10,$00
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@ -0,0 +1,113 @@
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;
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; Math constants for scaling.
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;
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; Each table has 16 sets of 16 entries, with one set for each of the 16 possible
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; scale values. The values within a set determine how one 4-bit nibble of the
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; coordinate is scaled.
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;
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; Suppose you want to scale the value 100 ($64) by scale factor 8 (a bit over
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; half size). We begin by using self-modifying code to select the table
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; subsets. This is done in a clever way to avoid shifting. The instructions
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; that load from ScaleTabLo are modified to reference $1800, $1810, $1820, and
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; so on. The instructions that load from ScaleTabHi reference $1900, $1901,
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; $1902, etc. The offset comes from the two 16-byte ScaleIndex tables. For a
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; scale factor of 8, we'll be using $1880 and $1908 as the base addresses.
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;
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; To do the actual scaling, we mask to get the low part of the value ($04) and
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; index into ScaleTabLo, at address $1884. We mask the high part of the value
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; ($60) and index into ScaleTabHi, at $1968. We add the values there ($02, $36)
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; to get $38 = 56, which is just over half size as expected.
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;
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; This is an approximation, but so is any integer division, and it's done in
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; 512+32=544 bytes instead of the 16*256=4096 bytes that you'd need for a fully-
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; formed scale. For hi-res graphics it's certainly good enough.
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;
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; 32 = $20 = ($1880)+($1928) = 18 (.563)
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; 40 = $28 = ($1888)+($1928) = 22 (.55)
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; 47 = $2F = ($188F)+($1928) = 26 (.553)
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; 48 = $30 = ($1880)+($1938) = 27 (.563)
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; 100 = $64 = ($1884)+($1968) = 56 (.56)
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;
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ScaleTabLo:
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.byte $00,$00,$00,$00,$00,$00,$00,$00
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.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $01,$01,$01,$01,$01,$01,$01,$01
|
||||
|
||||
.byte $00,$00,$00,$00,$00,$00,$01,$01
|
||||
.byte $01,$01,$01,$02,$02,$02,$02,$02
|
||||
.byte $00,$00,$00,$00,$01,$01,$01,$01
|
||||
.byte $02,$02,$02,$02,$03,$03,$03,$03
|
||||
|
||||
.byte $00,$00,$00,$00,$01,$01,$01,$02
|
||||
.byte $02,$02,$03,$03,$03,$04,$04,$04
|
||||
.byte $00,$00,$00,$01,$01,$01,$02,$02
|
||||
.byte $03,$03,$03,$04,$04,$04,$05,$05
|
||||
|
||||
.byte $00,$00,$00,$01,$01,$02,$02,$03
|
||||
.byte $03,$03,$04,$04,$05,$05,$06,$06
|
||||
.byte $00,$00,$01,$01,$02,$02,$03,$03
|
||||
.byte $04,$04,$05,$05,$06,$06,$07,$07
|
||||
|
||||
.byte $00,$00,$01,$01,$02,$02,$03,$03
|
||||
.byte $04,$05,$05,$06,$06,$07,$07,$08
|
||||
.byte $00,$00,$01,$01,$02,$03,$03,$04
|
||||
.byte $05,$05,$06,$06,$07,$08,$08,$09
|
||||
|
||||
.byte $00,$00,$01,$02,$02,$03,$04,$04
|
||||
.byte $05,$06,$06,$07,$08,$08,$09,$0a
|
||||
.byte $00,$00,$01,$02,$03,$03,$04,$05
|
||||
.byte $06,$06,$07,$08,$09,$09,$0a,$0b
|
||||
|
||||
.byte $00,$00,$01,$02,$03,$04,$04,$05
|
||||
.byte $06,$07,$08,$08,$09,$0a,$0b,$0c
|
||||
.byte $00,$00,$01,$02,$03,$04,$05,$06
|
||||
.byte $07,$07,$08,$09,$0a,$0b,$0c,$0d
|
||||
|
||||
.byte $00,$00,$01,$02,$03,$04,$05,$06
|
||||
.byte $07,$08,$09,$0a,$0b,$0c,$0d,$0e
|
||||
.byte $00,$01,$02,$03,$04,$05,$06,$07
|
||||
.byte $08,$09,$0a,$0b,$0c,$0d,$0e,$0f
|
||||
|
||||
ScaleTabHi:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $01,$02,$03,$04,$05,$06,$07,$08
|
||||
.byte $09,$0a,$0b,$0c,$0d,$0e,$0f,$10
|
||||
|
||||
.byte $02,$04,$06,$08,$0a,$0c,$0e,$10
|
||||
.byte $12,$14,$16,$18,$1a,$1c,$1e,$20
|
||||
.byte $03,$06,$09,$0c,$0f,$12,$15,$18
|
||||
.byte $1b,$1e,$21,$24,$27,$2a,$2d,$30
|
||||
|
||||
.byte $04,$08,$0c,$10,$14,$18,$1c,$20
|
||||
.byte $24,$28,$2c,$30,$34,$38,$3c,$40
|
||||
.byte $05,$0a,$0f,$14,$19,$1e,$23,$28
|
||||
.byte $2d,$32,$37,$3c,$41,$46,$4b,$50
|
||||
|
||||
.byte $06,$0c,$12,$18,$1e,$24,$2a,$30
|
||||
.byte $36,$3c,$42,$48,$4e,$54,$5a,$60
|
||||
.byte $07,$0e,$15,$1c,$23,$2a,$31,$38
|
||||
.byte $3f,$46,$4d,$54,$5b,$62,$69,$70
|
||||
|
||||
.byte $f8,$f0,$e8,$e0,$d8,$d0,$c8,$c0
|
||||
.byte $b8,$b0,$a8,$a0,$98,$90,$88,$80
|
||||
.byte $f9,$f2,$eb,$e4,$dd,$d6,$cf,$c8
|
||||
.byte $c1,$ba,$b3,$ac,$a5,$9e,$97,$90
|
||||
|
||||
.byte $fa,$f4,$ee,$e8,$e2,$dc,$d6,$d0
|
||||
.byte $ca,$c4,$be,$b8,$b2,$ac,$a6,$a0
|
||||
.byte $fb,$f6,$f1,$ec,$e7,$e2,$dd,$d8
|
||||
.byte $d3,$ce,$c9,$c4,$bf,$ba,$b5,$b0
|
||||
|
||||
.byte $fc,$f8,$f4,$f0,$ec,$e8,$e4,$e0
|
||||
.byte $dc,$d8,$d4,$d0,$cc,$c8,$c4,$c0
|
||||
.byte $fd,$fa,$f7,$f4,$f1,$ee,$eb,$e8
|
||||
.byte $e5,$e2,$df,$dc,$d9,$d6,$d3,$d0
|
||||
|
||||
.byte $fe,$fc,$fa,$f8,$f6,$f4,$f2,$f0
|
||||
.byte $ee,$ec,$ea,$e8,$e6,$e4,$e2,$e0
|
||||
.byte $ff,$fe,$fd,$fc,$fb,$fa,$f9,$f8
|
||||
.byte $f7,$f6,$f5,$f4,$f3,$f2,$f1,$f0
|
||||
|
||||
|
|
@ -0,0 +1,208 @@
|
|||
;===========================================================
|
||||
;
|
||||
; If configured without the HRCG, the module starts here. *
|
||||
;
|
||||
; Note that all tables are page-aligned for performance. *
|
||||
;
|
||||
;===========================================================
|
||||
|
||||
NumObjects: .byte 2 ; number of objects
|
||||
.byte 35 ; number of points (unused)
|
||||
.byte 41 ; number of lines (unused)
|
||||
;
|
||||
; The next five tables represent the data as it was entered into the shape
|
||||
; editor. There are two shapes. The first (space shuttle) starts at offset 0,
|
||||
; has 27 points, and 29 lines. The second (cube) starts immediately after the
|
||||
; first, has 8 points, and 12 lines.
|
||||
;
|
||||
|
||||
; 3D mesh X coordinates (-60, -57, ...)
|
||||
ShapeXCoords:
|
||||
|
||||
; spaceship
|
||||
|
||||
.byte $c4,$c7,$c7,$c7,$c7,$d6,$d6,$d6 ; $00
|
||||
.byte $d6,$f1,$f1,$00,$00,$15,$15,$1e ; $08
|
||||
.byte $1e,$1e,$1e,$24,$24,$24,$24,$09 ; $10
|
||||
.byte $1b,$15,$1e ; $18
|
||||
|
||||
; cube
|
||||
.byte $fb,$05,$05,$fb,$fb ; $1b
|
||||
.byte $05,$05,$fb ; $20
|
||||
|
||||
; junk
|
||||
|
||||
.byte $ec,$fc,$0c,$18,$28,$30,$44,$50,$74,$7c,$05,$fb,$00,$c4,$ca,$ca,$ca,$ca,$d6,$d6,$d6,$d6,$f1,$f1,$00,$00,$15,$15,$1e
|
||||
.byte $1e,$1e,$1e,$24,$24,$24,$24,$09,$1b,$15,$1e,$d8,$e8,$f8,$08,$18,$28,$9c,$c4,$ec,$14,$3c,$64,$c9,$37,$b5,$4b,$22,$de,$de,$f2,$0e
|
||||
.byte $22,$22,$de,$de,$f2,$0e,$22,$28,$39,$46,$d8,$c7,$ba,$00,$00,$00,$4d,$4d,$3f,$3f,$b3,$b3,$c1,$c1,$f9,$07,$07,$f9,$11,$ef,$ef,$11
|
||||
.byte $08,$f8,$0a,$f6,$19,$e7,$19,$e7,$00,$fa,$06,$00,$00,$fc,$04,$fc,$04,$fa,$06,$f6,$0a,$fc,$04,$f4,$0c,$fa,$06,$fa,$06,$f6,$0a,$f6
|
||||
.byte $0a,$f4,$0c,$f4,$0c,$d0,$30,$d0,$30,$d0,$30,$d0,$30,$d0,$30,$d0,$30,$d3,$06,$fc,$1a,$ba,$00,$da,$03,$16,$1a,$b0,$00,$ba,$02,$10
|
||||
.byte $34,$1a,$98,$19,$2b,$da,$03,$1b,$ab,$3b,$a0,$a0,$ab,$a4,$01,$df,$82,$d9,$0b,$f2,$0c,$d8,$06,$06,$2b,$7c,$10,$5b,$08,$3f,$19,$16
|
||||
.byte $0f,$01,$9c,$19,$23,$0f,$01,$97,$f2,$18,$24,$00,$0c,$c0,$f8,$06,$ed,$2b,$7c,$42,$1a,$ac,$00,$ba,$5c,$06,$f1,$1a,$03,$00,$da,$06
|
||||
|
||||
; 3D mesh Y coordinates (0, 3, ...)
|
||||
ShapeYCoords:
|
||||
; spaceship
|
||||
.byte $00,$03,$03,$fd,$fd,$06,$09,$fa
|
||||
.byte $f7,$09,$f7,$0f,$f1,$24,$dc,$24
|
||||
.byte $dc,$09,$f7,$09,$f7,$06,$fa,$00
|
||||
.byte $00,$00,$00
|
||||
|
||||
; cube
|
||||
.byte $fb,$fb,$05,$05,$fb
|
||||
.byte $fb,$05,$05
|
||||
|
||||
; garbage
|
||||
.byte $d0,$e0,$bc,$b0,$c4,$d8,$d0,$e0,$e0,$d0,$0a,$0a,$22,$00,$05,$05,$fb,$fb,$06,$09,$fa,$f7,$09,$f7,$0f,$f1,$24,$dc,$24
|
||||
.byte $dc,$09,$f7,$09,$f7,$06,$fa,$00,$00,$00,$00,$20,$20,$20,$20,$20,$20,$e0,$e0,$e0,$e0,$e0,$e0,$10,$10,$fa,$fa,$f4,$f4,$0c,$20,$20
|
||||
.byte $0c,$f4,$f4,$0c,$20,$20,$0c,$00,$00,$00,$00,$00,$00,$28,$39,$46,$f9,$07,$07,$f9,$f9,$07,$07,$f9,$4d,$4d,$3f,$3f,$ef,$ef,$11,$11
|
||||
.byte $0e,$0e,$1b,$1b,$11,$11,$e7,$e7,$00,$06,$06,$fa,$0a,$0a,$0a,$0a,$0a,$06,$06,$06,$06,$fa,$fa,$06,$06,$06,$06,$fa,$fa,$04,$04,$fc
|
||||
.byte $fc,$04,$04,$fc,$fc,$0c,$0c,$f4,$f4,$0c,$0c,$f4,$f4,$0c,$0c,$f4,$f4,$06,$00,$4f,$0c,$d0,$d2,$a3,$02,$00,$2c,$0d,$c5,$e4,$e9,$f4
|
||||
.byte $04,$06,$00,$a2,$0d,$c1,$00,$00,$00,$20,$4d,$0a,$a9,$ff,$85,$31,$a0,$00,$a5,$24,$c9,$27,$d0,$09,$20,$8e,$fd,$85,$31,$a9,$06,$85
|
||||
.byte $24,$b1,$12,$c5,$30,$d0,$13,$e6,$31,$a4,$31,$c0,$10,$b0,$0b,$be,$f0,$00,$e4,$24,$90,$04,$86,$24,$90,$d6,$20,$ed,$fd,$e6,$12,$d0
|
||||
|
||||
; 3D mesh Z coordinates (0, 3, ...)
|
||||
ShapeZCoords:
|
||||
; spaceship
|
||||
.byte $00,$03,$fd,$03,$fd,$09,$fa,$09
|
||||
.byte $fa,$fa,$fa,$fa,$fa,$fa,$fa,$fa
|
||||
.byte $fa,$fa,$fa,$fa,$fa,$09,$09,$09
|
||||
.byte $09,$1b,$1b
|
||||
|
||||
; cube
|
||||
.byte $fb,$fb,$fb,$fb,$05
|
||||
.byte $05,$05,$05
|
||||
|
||||
; garbage
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$05,$fb,$05,$fb,$09,$fa,$09,$fa,$fa,$fa,$fa,$fa,$fa,$fa,$fa
|
||||
.byte $fa,$fa,$fa,$fa,$fa,$09,$09,$09,$09,$1e,$1e,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$e2,$e2,$e0,$e0,$e0,$e0,$fd,$de,$c9,$fd,$de,$c9,$fb,$db,$c6,$c9,$c6,$c6,$c9,$c9,$c6,$c6,$c9,$c6,$c6,$c9,$c9,$28,$28,$2a,$2a
|
||||
.byte $16,$16,$03,$03,$20,$20,$1e,$1e,$5a,$1e,$1e,$1e,$24,$22,$22,$0c,$0c,$12,$12,$10,$10,$0c,$0c,$e8,$e8,$e2,$e2,$e8,$e8,$fa,$fa,$fa
|
||||
.byte $fa,$e8,$e8,$e8,$e8,$f4,$f4,$f4,$f4,$ee,$ee,$ee,$ee,$00,$00,$00,$00,$89,$f6,$01,$e2,$10,$27,$e8,$03,$64,$00,$0a,$00,$01,$00,$2b
|
||||
.byte $35,$25,$37,$00,$4c,$45,$08,$2b,$d7,$02,$58,$36,$01,$f5,$20,$89,$f6,$6c,$3b,$38,$08,$ed,$07,$02,$eb,$f8,$4c,$07,$03,$6c,$38,$ec
|
||||
.byte $28,$db,$02,$a5,$00,$20,$8e,$0a,$20,$89,$f6,$29,$d7,$03,$e2,$00,$60,$00,$20,$8e,$fd,$20,$ce,$0a,$20,$d5,$0e,$20,$c9,$09,$20,$89
|
||||
|
||||
; 3D mesh line definition: start points (0, 0, 0, ...)
|
||||
LineStartPoint: ; b00
|
||||
; spaceship (29 lines)
|
||||
.byte $00,$00,$00,$00,$01,$02,$03,$04
|
||||
.byte $06,$08,$09,$0a,$0b,$0c,$0d,$0e
|
||||
.byte $0f,$10,$11,$12,$13,$05,$07,$13
|
||||
.byte $14,$15,$17,$19,$1a
|
||||
|
||||
; cube (12 lines)
|
||||
.byte $1b,$1c,$1d
|
||||
.byte $1e,$1f,$20,$21,$22,$1b,$1c,$1d
|
||||
.byte $1e
|
||||
|
||||
; junk
|
||||
.byte $26,$27,$28,$29,$2a,$2b,$2d,$2e,$30,$30,$30,$30,$31,$32,$33,$34,$36,$38,$39,$3a,$3b,$3c,$3d
|
||||
.byte $3e,$3f,$40,$41,$42,$43,$35,$37,$43,$44,$45,$47,$49,$48,$4b,$4c,$4d,$4e,$4f,$50,$4b,$57,$59,$51,$5d,$63,$5d,$5e,$5f,$65,$5f,$60
|
||||
.byte $5b,$60,$61,$66,$67,$5c,$5d,$62,$63,$6a,$5e,$5f,$64,$65,$6d,$70,$71,$72,$73,$74,$75,$76,$77,$78,$79,$7a,$7b,$7c,$7d,$7e,$7f,$80
|
||||
.byte $81,$7e,$7f,$7e,$7f,$84,$85,$84,$85,$86,$87,$88,$88,$88,$8c,$8c,$8d,$8e,$89,$8a,$91,$92,$93,$94,$93,$94,$8b,$8b,$97,$98,$99,$97
|
||||
.byte $98,$99,$9a,$9d,$a1,$a9,$9f,$a3,$ab,$9e,$a2,$aa,$a0,$a4,$ac,$39,$a3,$38,$01,$0a,$a5,$03,$4d,$d6,$03,$4a,$37,$38,$25,$39,$11,$3c
|
||||
.byte $00,$29,$71,$28,$71,$00,$20,$da,$0b,$4c,$45,$08,$20,$89,$f6,$e8,$11,$3c,$00,$32,$b0,$71,$e0,$71,$22,$00,$6c,$08,$00,$14,$cd,$fe
|
||||
.byte $00,$20,$ce,$0a,$20,$89,$f6,$29,$3a,$28,$3b,$eb,$00,$20,$8e,$0a,$20,$89,$f6,$29,$38,$2a,$39,$f8,$28,$b9,$f8,$00,$20,$cc,$0b,$20
|
||||
|
||||
; 3D mesh line definition: end points (1, 2, 3, ...)
|
||||
LineEndPoint: ; c00
|
||||
|
||||
; spaceship (29 lines)
|
||||
.byte $01,$02,$03,$04,$05,$06,$07,$08
|
||||
.byte $09,$0a,$0b,$0c,$0d,$0e,$0f,$10
|
||||
.byte $11,$12,$13,$14,$14,$15,$16,$15
|
||||
.byte $16,$16,$19,$1a,$18
|
||||
|
||||
; cube (12 lines)
|
||||
.byte $1c,$1d,$1e
|
||||
.byte $1b,$20,$21,$22,$1f,$1f,$20,$21
|
||||
.byte $22
|
||||
|
||||
; junk
|
||||
.byte $27,$28,$29,$2a,$2b,$2c,$2f,$2f,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3a,$3b,$3c,$3d,$3e,$3f
|
||||
.byte $40,$41,$42,$43,$44,$44,$45,$46,$45,$46,$46,$49,$4a,$4a,$51,$52,$53,$54,$55,$56,$50,$58,$5a,$56,$5e,$64,$63,$64,$60,$66,$65,$66
|
||||
.byte $67,$67,$68,$68,$69,$6a,$6a,$6b,$6b,$6c,$6d,$6d,$6e,$6e,$6f,$71,$72,$73,$70,$75,$76,$77,$74,$79,$7a,$7b,$78,$7d,$7e,$7f,$7c,$82
|
||||
.byte $83,$81,$80,$85,$84,$80,$81,$60,$5d,$84,$85,$89,$8a,$8b,$8d,$8e,$8f,$90,$91,$92,$93,$94,$95,$96,$97,$98,$9b,$9c,$99,$9a,$9a,$9b
|
||||
.byte $9c,$9b,$9c,$a5,$a9,$ad,$a7,$ab,$af,$a6,$aa,$ae,$a8,$ac,$b0,$10,$dd,$08,$3f,$19,$6b,$0f,$00,$20,$d0,$09,$20,$0c,$fd,$c9,$d3,$66
|
||||
.byte $33,$20,$ce,$0a,$a9,$ff,$85,$2f,$d0,$00,$20,$61,$0c,$20,$89,$f6,$11,$00,$02,$29,$d4,$06,$04,$49,$51,$01,$f8,$4a,$06,$03,$51,$01
|
||||
.byte $fa,$21,$3a,$f2,$42,$51,$d3,$07,$fb,$19,$00,$02,$11,$7c,$03,$24,$71,$2a,$71,$00,$20,$7b,$0d,$24,$33,$10,$0c,$20,$0c,$fd,$c9,$83
|
||||
|
||||
;
|
||||
; For shape N, the index of the first point.
|
||||
;
|
||||
; Shape #0 uses points $00-1A, shape #1 uses points $1B-22. (Data at offsets 2-
|
||||
; 15 is junk.)
|
||||
FirstPointIndex:
|
||||
.byte $00,$1b
|
||||
.byte $08,$0c,$0d,$1d,$2d,$30,$4b,$5b,$88,$7c,$03,$61,$39,$e9
|
||||
|
||||
; For shape N, the index of the last point + 1.
|
||||
LastPointIndex:
|
||||
.byte $1b,$23
|
||||
.byte $0c,$0d,$1d,$2d,$30,$4b,$5b,$88,$b1,$2a,$1a,$00,$02,$ba
|
||||
|
||||
;
|
||||
; For shape N, the index of the first line.
|
||||
;
|
||||
; Shape #0 uses lines $00-1C, shape #1 uses lines $1D-28. (Data at offsets 2-15
|
||||
; is junk.)
|
||||
|
||||
FirstLineIndex:
|
||||
.byte $00,$1d
|
||||
.byte $0c,$01,$12,$20,$2f,$31,$4e,$58,$8b,$01,$9c,$00,$a5,$16
|
||||
|
||||
; For shape N, the index of the last point + 1.
|
||||
LastLineIndex:
|
||||
.byte $1d,$29
|
||||
.byte $12,$01,$20,$2f,$31,$4e,$58,$8b,$af,$fe,$4c,$45,$08,$20
|
||||
|
||||
;
|
||||
; Indexes into the rotation tables. One entry for each rotation value (0-27).
|
||||
; The "low" and "high" tables have the same value at each position, just shifted
|
||||
; over 4 bits.
|
||||
;
|
||||
; Mathematically, cosine has the same shape as sine, but is shifted by PI/2 (one
|
||||
; quarter period) ahead of it. That's why there are two sets of tables, one of
|
||||
; which is shifted by 7 bytes.
|
||||
;
|
||||
; See the comments above RotTabLo for more details.
|
||||
;
|
||||
|
||||
RotIndexLo_sin:
|
||||
.byte $70,$60,$50,$40,$30,$20,$10,$00
|
||||
.byte $10,$20,$30,$40,$50,$60,$70,$80
|
||||
.byte $90,$a0,$b0,$c0,$d0,$e0,$d0,$c0
|
||||
.byte $b0,$a0,$90,$80
|
||||
|
||||
RotIndexHi_sin:
|
||||
.byte $07,$06,$05,$04,$03,$02,$01,$00
|
||||
.byte $01,$02,$03,$04,$05,$06,$07,$08
|
||||
.byte $09,$0a,$0b,$0c,$0d,$0e,$0d,$0c
|
||||
.byte $0b,$0a,$09,$08
|
||||
|
||||
RotIndexLo_cos:
|
||||
.byte $00,$10,$20,$30,$40,$50,$60,$70
|
||||
.byte $80,$90,$a0,$b0,$c0,$d0,$e0,$d0
|
||||
.byte $c0,$b0,$a0,$90,$80,$70,$60,$50
|
||||
.byte $40,$30,$20,$10
|
||||
|
||||
RotIndexHi_cos:
|
||||
.byte $00,$01,$02,$03,$04,$05,$06,$07
|
||||
.byte $08,$09,$0a,$0b,$0c,$0d,$0e,$0d
|
||||
.byte $0c,$0b,$0a,$09,$08,$07,$06,$05
|
||||
.byte $04,$03,$02,$01
|
||||
|
||||
;
|
||||
; Indexes into the scale tables. One entry for each scale value (0-15). See
|
||||
; the comments above ScaleTabLo for more details.
|
||||
;
|
||||
ScaleIndexLo:
|
||||
.byte $00,$10,$20,$30,$40,$50,$60,$70,$80,$90,$a0,$b0,$c0,$d0,$e0,$f0
|
||||
|
||||
ScaleIndexHi:
|
||||
.byte $00,$01,$02,$03,$04,$05,$06,$07,$08,$09,$0a,$0b,$0c,$0d,$0e,$0f
|
||||
|
||||
;
|
||||
; Junk, pads to end of 256-byte page.
|
||||
.align $0100 ; (48 bytes)
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,33 @@
|
|||
OpDEY = $88 ; DEY opcode
|
||||
OpINY = $c8 ; INY opcode
|
||||
OpDEX = $ca ; DEX opcode
|
||||
OpINX = $e8 ; INX opcode
|
||||
OpNOP = $ea ; NOP opcode
|
||||
|
||||
; zero page addresses
|
||||
|
||||
MON_WNDLEFT = $20 ; left column of scroll window
|
||||
MON_WNDWDTH = $21 ; width of scroll window
|
||||
MON_WNDTOP = $22 ; top of scroll window
|
||||
MON_WNDBTM = $23 ; bottom of scroll window
|
||||
MON_CH = $24 ; cursor horizontal displacement
|
||||
MON_CV = $25 ; cursor vertical displacement
|
||||
MON_CSWL = $36 ; character output hook (lo)
|
||||
MON_CSWH = $37 ; character output hook (hi)
|
||||
BAS_ARYTAB = $6b ; pointer to start of Applesoft array space (2b)
|
||||
|
||||
; Clear variables
|
||||
|
||||
HPTR = $06
|
||||
HPAGE = $18 ; hi-res page ($20 or $40)
|
||||
XSTART = $1c
|
||||
YSTART = $1d
|
||||
XEND = $1e
|
||||
YEND = $1f
|
||||
DELTA_X = $3c
|
||||
DELTA_Y = $3d
|
||||
LINE_ADJ = $3e
|
||||
LINE_INDEX = $43
|
||||
YSAVE = $00
|
||||
FIRST_LINE = $45
|
||||
LAST_LINE = $46
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
include ../../../../Makefile.inc
|
||||
|
||||
DOS33 = ../../../../utils/dos33fs-utils/dos33
|
||||
TOKENIZE = ../../../../utils/asoft_basic-utils/tokenize_asoft
|
||||
LINKER_SCRIPTS = ../../../../linker_scripts
|
||||
EMPTY_DISK = ../../../../empty_disk
|
||||
|
||||
all: budge3d.dsk
|
||||
|
||||
budge3d.dsk: HELLO TEST SHIP_CUBE
|
||||
cp $(EMPTY_DISK)/empty.dsk budge3d.dsk
|
||||
$(DOS33) -y budge3d.dsk SAVE A HELLO
|
||||
$(DOS33) -y budge3d.dsk SAVE A TEST
|
||||
$(DOS33) -y budge3d.dsk BSAVE -a 0x300 SHIP_CUBE
|
||||
|
||||
|
||||
###
|
||||
|
||||
HELLO: hello.bas
|
||||
$(TOKENIZE) < hello.bas > HELLO
|
||||
|
||||
###
|
||||
|
||||
TEST: test.bas
|
||||
$(TOKENIZE) < test.bas > TEST
|
||||
|
||||
####
|
||||
|
||||
SHIP_CUBE: ship_cube.o
|
||||
ld65 -o SHIP_CUBE ship_cube.o -C $(LINKER_SCRIPTS)/apple2_300.inc
|
||||
|
||||
ship_cube.o: ship_cube.s \
|
||||
zp.inc hardware.inc \
|
||||
shapes.s math_constants.s hgr_tables.s \
|
||||
hgr_textgen.s scale_constants.s
|
||||
ca65 -o ship_cube.o ship_cube.s -l ship_cube.lst
|
||||
|
||||
####
|
||||
clean:
|
||||
rm -f *~ *.o *.lst HELLO SHIP_CUBE TEST
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
CODE_arr = $6008 ; CODE array (dummy address)
|
||||
X_arr = $602f ; X array (dummy address)
|
||||
Y_arr = $6056 ; Y array (dummy address)
|
||||
SCALE_arr = $607d ; SCALE array (dummy address)
|
||||
XROT_arr = $60a4 ; XROT array (dummy address)
|
||||
YROT_arr = $60cb ; YROT array (dummy address)
|
||||
ZROT_arr = $60f2 ; ZROT array (dummy address)
|
||||
SX_arr = $6119 ; SX array (dummy address)
|
||||
SY_arr = $6140 ; SY array (dummy address)
|
||||
|
||||
; soft switches
|
||||
TXTCLR = $c050 ; RW display graphics
|
||||
MIXCLR = $c052 ; RW display full screen
|
||||
TXTPAGE1 = $c054 ; RW display page 1
|
||||
TXTPAGE2 = $c055 ; RW display page 2 (or read/write aux mem)
|
||||
HIRES = $c057 ; RW display hi-res graphics
|
||||
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
10 POKE 24576,0: POKE 103,1: POKE 104,96: POKE 175,1: POKE 176,96
|
||||
30 PRINT CHR$ (4)"RUN TEST"
|
||||
|
||||
|
|
@ -0,0 +1,102 @@
|
|||
;
|
||||
; Divide-by-7 table. Used to divide the X coordinate (0-255) by 7, yielding a
|
||||
; byte offset for the hi-res screen column.
|
||||
;
|
||||
Div7Tab: ; 1400
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$01,$01,$01,$01,$01,$01,$01,$02,$02
|
||||
.byte $02,$02,$02,$02,$02,$03,$03,$03,$03,$03,$03,$03,$04,$04,$04,$04
|
||||
.byte $04,$04,$04,$05,$05,$05,$05,$05,$05,$05,$06,$06,$06,$06,$06,$06
|
||||
.byte $06,$07,$07,$07,$07,$07,$07,$07,$08,$08,$08,$08,$08,$08,$08,$09
|
||||
.byte $09,$09,$09,$09,$09,$09,$0a,$0a,$0a,$0a,$0a,$0a,$0a,$0b,$0b,$0b
|
||||
.byte $0b,$0b,$0b,$0b,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0d,$0d,$0d,$0d,$0d
|
||||
.byte $0d,$0d,$0e,$0e,$0e,$0e,$0e,$0e,$0e,$0f,$0f,$0f,$0f,$0f,$0f,$0f
|
||||
.byte $10,$10,$10,$10,$10,$10,$10,$11,$11,$11,$11,$11,$11,$11,$12,$12
|
||||
.byte $12,$12,$12,$12,$12,$13,$13,$13,$13,$13,$13,$13,$14,$14,$14,$14
|
||||
.byte $14,$14,$14,$15,$15,$15,$15,$15,$15,$15,$16,$16,$16,$16,$16,$16
|
||||
.byte $16,$17,$17,$17,$17,$17,$17,$17,$18,$18,$18,$18,$18,$18,$18,$19
|
||||
.byte $19,$19,$19,$19,$19,$19,$1a,$1a,$1a,$1a,$1a,$1a,$1a,$1b,$1b,$1b
|
||||
.byte $1b,$1b,$1b,$1b,$1c,$1c,$1c,$1c,$1c,$1c,$1c,$1d,$1d,$1d,$1d,$1d
|
||||
.byte $1d,$1d,$1e,$1e,$1e,$1e,$1e,$1e,$1e,$1f,$1f,$1f,$1f,$1f,$1f,$1f
|
||||
.byte $20,$20,$20,$20,$20,$20,$20,$21,$21,$21,$21,$21,$21,$21,$22,$22
|
||||
.byte $22,$22,$22,$22,$22,$23,$23,$23,$23,$23,$23,$23,$24,$24,$24,$24
|
||||
|
||||
;
|
||||
; Hi-res bit table. Converts the X coordinate (0-255) into a bit position
|
||||
; within a byte. (Essentially 2 to the power of the remainder of the coordinate
|
||||
; divided by 7.)
|
||||
;
|
||||
|
||||
HiResBitTab: ; 1500
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08,$10,$20,$40,$01,$02,$04,$08,$10,$20,$40
|
||||
.byte $01,$02,$04,$08
|
||||
|
||||
;
|
||||
; Hi-res Y-coordinate lookup table, low byte. Values 0-191 are meaningful, 192-
|
||||
; 255 are junk.
|
||||
;
|
||||
|
||||
YTableLo: ; 1600
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$80,$80,$80,$80,$80,$80,$80,$80,$00,$00,$00,$00,$00,$00,$00,$00,$80,$80,$80,$80,$80,$80,$80,$80
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$80,$80,$80,$80,$80,$80,$80,$80,$00,$00,$00,$00,$00,$00,$00,$00,$80,$80,$80,$80,$80,$80,$80,$80
|
||||
.byte $28,$28,$28,$28,$28,$28,$28,$28,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$28,$28,$28,$28,$28,$28,$28,$28,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$a8
|
||||
.byte $28,$28,$28,$28,$28,$28,$28,$28,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$28,$28,$28,$28,$28,$28,$28,$28,$a8,$a8,$a8,$a8,$a8,$a8,$a8,$a8
|
||||
.byte $50,$50,$50,$50,$50,$50,$50,$50,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$50,$50,$50,$50,$50,$50,$50,$50,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$d0
|
||||
.byte $50,$50,$50,$50,$50,$50,$50,$50,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$50,$50,$50,$50,$50,$50,$50,$50,$d0,$d0,$d0,$d0,$d0,$d0,$d0,$d0
|
||||
|
||||
|
||||
.align $0100 ; (64 bytes)
|
||||
|
||||
;==============================================
|
||||
; Hi-res Y-coordinate lookup table, high byte.
|
||||
;==============================================
|
||||
|
||||
YTableHi:
|
||||
.byte $00,$04,$08,$0c,$10,$14,$18,$1c
|
||||
.byte $00,$04,$08,$0c,$10,$14,$18,$1c
|
||||
.byte $01,$05,$09,$0d,$11,$15,$19,$1d
|
||||
.byte $01,$05,$09,$0d,$11,$15,$19,$1d
|
||||
|
||||
.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
|
||||
.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
|
||||
.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
|
||||
.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
|
||||
|
||||
.byte $00,$04,$08,$0c,$10,$14,$18,$1c
|
||||
.byte $00,$04,$08,$0c,$10,$14,$18,$1c
|
||||
.byte $01,$05,$09,$0d,$11,$15,$19,$1d
|
||||
.byte $01,$05,$09,$0d,$11,$15,$19,$1d
|
||||
|
||||
.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
|
||||
.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
|
||||
.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
|
||||
.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
|
||||
|
||||
.byte $00,$04,$08,$0c,$10,$14,$18,$1c
|
||||
.byte $00,$04,$08,$0c,$10,$14,$18,$1c
|
||||
.byte $01,$05,$09,$0d,$11,$15,$19,$1d
|
||||
.byte $01,$05,$09,$0d,$11,$15,$19,$1d
|
||||
|
||||
.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
|
||||
.byte $02,$06,$0a,$0e,$12,$16,$1a,$1e
|
||||
.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
|
||||
.byte $03,$07,$0b,$0f,$13,$17,$1b,$1f
|
||||
|
||||
.align $0100 ; (64 bytes)
|
||||
|
||||
|
|
@ -0,0 +1,68 @@
|
|||
;
|
||||
; Math constants for rotation.
|
||||
;
|
||||
; To compute X * cos(theta), start by converting theta (0-27) into a table base
|
||||
; address (using the 28-byte tables RotIndexLo_cos / RotIndexHi_cos). Split the
|
||||
; X coordinate into nibbles, use the low 4 bits to index into the adjusted
|
||||
; RotTabLo pointer, and the high 4 bits to index into the adjusted RotTabHi
|
||||
; pointer. Add the values at those locations together.
|
||||
;
|
||||
; This is similar to the way the scale table works. See ScaleTableLo, below,
|
||||
; for a longer explanation of how the nibbles are used.
|
||||
;
|
||||
; As an example, suppose we have a point at (36,56), and we want to rotate it 90
|
||||
; degrees (rot=7). We use the RotIndex tables to get the table base addresses:
|
||||
; sin=$00/$00 ($1200/$1300), cos=$70/$07 ($1270/$1307). We split the
|
||||
; coordinates into nibbles without shifting ($24,$38 --> $20 $04, $30 $08), and
|
||||
; use the nibbles as indexes into the tables:
|
||||
;
|
||||
; X * cos(theta) = ($1274)+($1327) = $00+$00 = 0
|
||||
; Y * sin(theta) = ($1208)+($1330) = $08+$30 = 56
|
||||
; X * sin(theta) = ($1204)+($1320) = $04+$20 = 36
|
||||
; Y * cos(theta) = ($1278)+($1337) = $00+$00 = 0
|
||||
;
|
||||
; XC = X*cos(theta) - Y*sin(theta) = -56
|
||||
; YC = X*sin(theta) + Y*cos(theta) = 36
|
||||
;
|
||||
; which is exactly what we expected (counter-clockwise).
|
||||
;
|
||||
; The largest value from the index table is $EE, so that last 17 bytes in each
|
||||
; table are unused.
|
||||
;
|
||||
|
||||
RotTabLo: ; 1200
|
||||
.byte $00,$01,$02,$03,$04,$05,$06,$07,$08,$09,$0a,$0b,$0c,$0d,$0e,$0f
|
||||
.byte $00,$01,$02,$03,$04,$05,$06,$07,$08,$09,$0a,$0b,$0c,$0d,$0e,$0f
|
||||
.byte $00,$01,$02,$03,$04,$05,$05,$06,$07,$08,$09,$0a,$0b,$0c,$0d,$0e
|
||||
.byte $00,$01,$02,$02,$03,$04,$05,$05,$06,$07,$08,$09,$09,$0a,$0b,$0c
|
||||
.byte $00,$01,$01,$02,$02,$03,$04,$04,$05,$06,$06,$07,$07,$08,$09,$09
|
||||
.byte $00,$00,$01,$01,$02,$02,$03,$03,$03,$04,$04,$05,$05,$06,$06,$07
|
||||
.byte $00,$00,$00,$01,$01,$01,$01,$02,$02,$02,$02,$02,$03,$03,$03,$03
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$00,$00,$ff,$ff,$ff,$ff,$fe,$fe,$fe,$fe,$fe,$fd,$fd,$fd,$fd
|
||||
.byte $00,$00,$ff,$ff,$fe,$fe,$fd,$fd,$fd,$fc,$fc,$fb,$fb,$fa,$fa,$f9
|
||||
.byte $00,$ff,$ff,$fe,$fe,$fd,$fc,$fc,$fb,$fa,$fa,$f9,$f9,$f8,$f7,$f7
|
||||
.byte $00,$ff,$fe,$fe,$fd,$fc,$fb,$fb,$fa,$f9,$f8,$f7,$f7,$f6,$f5,$f4
|
||||
.byte $00,$ff,$fe,$fd,$fc,$fb,$fb,$fa,$f9,$f8,$f7,$f6,$f5,$f4,$f3,$f2
|
||||
.byte $00,$ff,$fe,$fd,$fc,$fb,$fb,$fa,$f8,$f7,$f6,$f5,$f4,$f3,$f2,$f1
|
||||
.byte $00,$ff,$fe,$fd,$fc,$fb,$fa,$f9,$f8,$f7,$f6,$f5,$f4,$f3,$f2,$f1
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
|
||||
RotTabHi: ; 1300
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $10,$10,$0e,$0d,$0a,$07,$04,$00,$fc,$f9,$f6,$f3,$f2,$f0,$f0,$00
|
||||
.byte $20,$1f,$1d,$19,$14,$0e,$07,$00,$f9,$f2,$ec,$e7,$e3,$e1,$e0,$00
|
||||
.byte $30,$2f,$2b,$26,$1e,$15,$0b,$00,$f5,$eb,$e2,$da,$d5,$d1,$d0,$00
|
||||
.byte $40,$3e,$3a,$32,$28,$1c,$0e,$00,$f2,$e4,$d8,$ce,$c6,$c2,$c0,$00
|
||||
.byte $50,$4e,$48,$3f,$32,$23,$12,$00,$ee,$dd,$ce,$c1,$b8,$b2,$b0,$00
|
||||
.byte $60,$5e,$56,$4b,$3c,$2a,$15,$00,$eb,$d6,$c4,$b5,$aa,$a2,$a0,$00
|
||||
.byte $70,$6d,$65,$58,$46,$31,$19,$00,$e7,$cf,$ba,$a8,$9b,$93,$90,$00
|
||||
.byte $80,$83,$8d,$9c,$b0,$c8,$e4,$00,$1c,$38,$50,$64,$73,$7d,$80,$00
|
||||
.byte $90,$93,$9b,$a8,$ba,$cf,$e7,$00,$19,$31,$46,$58,$65,$6d,$70,$00
|
||||
.byte $a0,$a2,$aa,$b5,$c4,$d6,$eb,$00,$15,$2a,$3c,$4b,$56,$5e,$60,$00
|
||||
.byte $b0,$b2,$b8,$c1,$ce,$dd,$ee,$00,$12,$23,$32,$3f,$48,$4e,$50,$00
|
||||
.byte $c0,$c2,$c6,$ce,$d8,$e4,$f2,$00,$0e,$1c,$28,$32,$3a,$3e,$40,$00
|
||||
.byte $d0,$d1,$d5,$da,$e2,$eb,$f5,$00,$0b,$15,$1e,$26,$2b,$2f,$30,$00
|
||||
.byte $e0,$e1,$e3,$e7,$ec,$f2,$f9,$00,$07,$0e,$14,$19,$1d,$1f,$20,$00
|
||||
.byte $f0,$f0,$f2,$f3,$f6,$f9,$fc,$00,$04,$07,$0a,$0d,$0e,$10,$10,$00
|
||||
|
||||
|
|
@ -0,0 +1,113 @@
|
|||
;
|
||||
; Math constants for scaling.
|
||||
;
|
||||
; Each table has 16 sets of 16 entries, with one set for each of the 16 possible
|
||||
; scale values. The values within a set determine how one 4-bit nibble of the
|
||||
; coordinate is scaled.
|
||||
;
|
||||
; Suppose you want to scale the value 100 ($64) by scale factor 8 (a bit over
|
||||
; half size). We begin by using self-modifying code to select the table
|
||||
; subsets. This is done in a clever way to avoid shifting. The instructions
|
||||
; that load from ScaleTabLo are modified to reference $1800, $1810, $1820, and
|
||||
; so on. The instructions that load from ScaleTabHi reference $1900, $1901,
|
||||
; $1902, etc. The offset comes from the two 16-byte ScaleIndex tables. For a
|
||||
; scale factor of 8, we'll be using $1880 and $1908 as the base addresses.
|
||||
;
|
||||
; To do the actual scaling, we mask to get the low part of the value ($04) and
|
||||
; index into ScaleTabLo, at address $1884. We mask the high part of the value
|
||||
; ($60) and index into ScaleTabHi, at $1968. We add the values there ($02, $36)
|
||||
; to get $38 = 56, which is just over half size as expected.
|
||||
;
|
||||
; This is an approximation, but so is any integer division, and it's done in
|
||||
; 512+32=544 bytes instead of the 16*256=4096 bytes that you'd need for a fully-
|
||||
; formed scale. For hi-res graphics it's certainly good enough.
|
||||
;
|
||||
; 32 = $20 = ($1880)+($1928) = 18 (.563)
|
||||
; 40 = $28 = ($1888)+($1928) = 22 (.55)
|
||||
; 47 = $2F = ($188F)+($1928) = 26 (.553)
|
||||
; 48 = $30 = ($1880)+($1938) = 27 (.563)
|
||||
; 100 = $64 = ($1884)+($1968) = 56 (.56)
|
||||
;
|
||||
|
||||
ScaleTabLo:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $01,$01,$01,$01,$01,$01,$01,$01
|
||||
|
||||
.byte $00,$00,$00,$00,$00,$00,$01,$01
|
||||
.byte $01,$01,$01,$02,$02,$02,$02,$02
|
||||
.byte $00,$00,$00,$00,$01,$01,$01,$01
|
||||
.byte $02,$02,$02,$02,$03,$03,$03,$03
|
||||
|
||||
.byte $00,$00,$00,$00,$01,$01,$01,$02
|
||||
.byte $02,$02,$03,$03,$03,$04,$04,$04
|
||||
.byte $00,$00,$00,$01,$01,$01,$02,$02
|
||||
.byte $03,$03,$03,$04,$04,$04,$05,$05
|
||||
|
||||
.byte $00,$00,$00,$01,$01,$02,$02,$03
|
||||
.byte $03,$03,$04,$04,$05,$05,$06,$06
|
||||
.byte $00,$00,$01,$01,$02,$02,$03,$03
|
||||
.byte $04,$04,$05,$05,$06,$06,$07,$07
|
||||
|
||||
.byte $00,$00,$01,$01,$02,$02,$03,$03
|
||||
.byte $04,$05,$05,$06,$06,$07,$07,$08
|
||||
.byte $00,$00,$01,$01,$02,$03,$03,$04
|
||||
.byte $05,$05,$06,$06,$07,$08,$08,$09
|
||||
|
||||
.byte $00,$00,$01,$02,$02,$03,$04,$04
|
||||
.byte $05,$06,$06,$07,$08,$08,$09,$0a
|
||||
.byte $00,$00,$01,$02,$03,$03,$04,$05
|
||||
.byte $06,$06,$07,$08,$09,$09,$0a,$0b
|
||||
|
||||
.byte $00,$00,$01,$02,$03,$04,$04,$05
|
||||
.byte $06,$07,$08,$08,$09,$0a,$0b,$0c
|
||||
.byte $00,$00,$01,$02,$03,$04,$05,$06
|
||||
.byte $07,$07,$08,$09,$0a,$0b,$0c,$0d
|
||||
|
||||
.byte $00,$00,$01,$02,$03,$04,$05,$06
|
||||
.byte $07,$08,$09,$0a,$0b,$0c,$0d,$0e
|
||||
.byte $00,$01,$02,$03,$04,$05,$06,$07
|
||||
.byte $08,$09,$0a,$0b,$0c,$0d,$0e,$0f
|
||||
|
||||
ScaleTabHi:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $01,$02,$03,$04,$05,$06,$07,$08
|
||||
.byte $09,$0a,$0b,$0c,$0d,$0e,$0f,$10
|
||||
|
||||
.byte $02,$04,$06,$08,$0a,$0c,$0e,$10
|
||||
.byte $12,$14,$16,$18,$1a,$1c,$1e,$20
|
||||
.byte $03,$06,$09,$0c,$0f,$12,$15,$18
|
||||
.byte $1b,$1e,$21,$24,$27,$2a,$2d,$30
|
||||
|
||||
.byte $04,$08,$0c,$10,$14,$18,$1c,$20
|
||||
.byte $24,$28,$2c,$30,$34,$38,$3c,$40
|
||||
.byte $05,$0a,$0f,$14,$19,$1e,$23,$28
|
||||
.byte $2d,$32,$37,$3c,$41,$46,$4b,$50
|
||||
|
||||
.byte $06,$0c,$12,$18,$1e,$24,$2a,$30
|
||||
.byte $36,$3c,$42,$48,$4e,$54,$5a,$60
|
||||
.byte $07,$0e,$15,$1c,$23,$2a,$31,$38
|
||||
.byte $3f,$46,$4d,$54,$5b,$62,$69,$70
|
||||
|
||||
.byte $f8,$f0,$e8,$e0,$d8,$d0,$c8,$c0
|
||||
.byte $b8,$b0,$a8,$a0,$98,$90,$88,$80
|
||||
.byte $f9,$f2,$eb,$e4,$dd,$d6,$cf,$c8
|
||||
.byte $c1,$ba,$b3,$ac,$a5,$9e,$97,$90
|
||||
|
||||
.byte $fa,$f4,$ee,$e8,$e2,$dc,$d6,$d0
|
||||
.byte $ca,$c4,$be,$b8,$b2,$ac,$a6,$a0
|
||||
.byte $fb,$f6,$f1,$ec,$e7,$e2,$dd,$d8
|
||||
.byte $d3,$ce,$c9,$c4,$bf,$ba,$b5,$b0
|
||||
|
||||
.byte $fc,$f8,$f4,$f0,$ec,$e8,$e4,$e0
|
||||
.byte $dc,$d8,$d4,$d0,$cc,$c8,$c4,$c0
|
||||
.byte $fd,$fa,$f7,$f4,$f1,$ee,$eb,$e8
|
||||
.byte $e5,$e2,$df,$dc,$d9,$d6,$d3,$d0
|
||||
|
||||
.byte $fe,$fc,$fa,$f8,$f6,$f4,$f2,$f0
|
||||
.byte $ee,$ec,$ea,$e8,$e6,$e4,$e2,$e0
|
||||
.byte $ff,$fe,$fd,$fc,$fb,$fa,$f9,$f8
|
||||
.byte $f7,$f6,$f5,$f4,$f3,$f2,$f1,$f0
|
||||
|
||||
|
|
@ -0,0 +1,208 @@
|
|||
;===========================================================
|
||||
;
|
||||
; If configured without the HRCG, the module starts here. *
|
||||
;
|
||||
; Note that all tables are page-aligned for performance. *
|
||||
;
|
||||
;===========================================================
|
||||
|
||||
NumObjects: .byte 2 ; number of objects
|
||||
.byte 35 ; number of points (unused)
|
||||
.byte 41 ; number of lines (unused)
|
||||
;
|
||||
; The next five tables represent the data as it was entered into the shape
|
||||
; editor. There are two shapes. The first (space shuttle) starts at offset 0,
|
||||
; has 27 points, and 29 lines. The second (cube) starts immediately after the
|
||||
; first, has 8 points, and 12 lines.
|
||||
;
|
||||
|
||||
; 3D mesh X coordinates (-60, -57, ...)
|
||||
ShapeXCoords:
|
||||
|
||||
; spaceship
|
||||
|
||||
.byte $c4,$c7,$c7,$c7,$c7,$d6,$d6,$d6 ; $00
|
||||
.byte $d6,$f1,$f1,$00,$00,$15,$15,$1e ; $08
|
||||
.byte $1e,$1e,$1e,$24,$24,$24,$24,$09 ; $10
|
||||
.byte $1b,$15,$1e ; $18
|
||||
|
||||
; cube
|
||||
.byte $fb,$05,$05,$fb,$fb ; $1b
|
||||
.byte $05,$05,$fb ; $20
|
||||
|
||||
; junk
|
||||
|
||||
.byte $ec,$fc,$0c,$18,$28,$30,$44,$50,$74,$7c,$05,$fb,$00,$c4,$ca,$ca,$ca,$ca,$d6,$d6,$d6,$d6,$f1,$f1,$00,$00,$15,$15,$1e
|
||||
.byte $1e,$1e,$1e,$24,$24,$24,$24,$09,$1b,$15,$1e,$d8,$e8,$f8,$08,$18,$28,$9c,$c4,$ec,$14,$3c,$64,$c9,$37,$b5,$4b,$22,$de,$de,$f2,$0e
|
||||
.byte $22,$22,$de,$de,$f2,$0e,$22,$28,$39,$46,$d8,$c7,$ba,$00,$00,$00,$4d,$4d,$3f,$3f,$b3,$b3,$c1,$c1,$f9,$07,$07,$f9,$11,$ef,$ef,$11
|
||||
.byte $08,$f8,$0a,$f6,$19,$e7,$19,$e7,$00,$fa,$06,$00,$00,$fc,$04,$fc,$04,$fa,$06,$f6,$0a,$fc,$04,$f4,$0c,$fa,$06,$fa,$06,$f6,$0a,$f6
|
||||
.byte $0a,$f4,$0c,$f4,$0c,$d0,$30,$d0,$30,$d0,$30,$d0,$30,$d0,$30,$d0,$30,$d3,$06,$fc,$1a,$ba,$00,$da,$03,$16,$1a,$b0,$00,$ba,$02,$10
|
||||
.byte $34,$1a,$98,$19,$2b,$da,$03,$1b,$ab,$3b,$a0,$a0,$ab,$a4,$01,$df,$82,$d9,$0b,$f2,$0c,$d8,$06,$06,$2b,$7c,$10,$5b,$08,$3f,$19,$16
|
||||
.byte $0f,$01,$9c,$19,$23,$0f,$01,$97,$f2,$18,$24,$00,$0c,$c0,$f8,$06,$ed,$2b,$7c,$42,$1a,$ac,$00,$ba,$5c,$06,$f1,$1a,$03,$00,$da,$06
|
||||
|
||||
; 3D mesh Y coordinates (0, 3, ...)
|
||||
ShapeYCoords:
|
||||
; spaceship
|
||||
.byte $00,$03,$03,$fd,$fd,$06,$09,$fa
|
||||
.byte $f7,$09,$f7,$0f,$f1,$24,$dc,$24
|
||||
.byte $dc,$09,$f7,$09,$f7,$06,$fa,$00
|
||||
.byte $00,$00,$00
|
||||
|
||||
; cube
|
||||
.byte $fb,$fb,$05,$05,$fb
|
||||
.byte $fb,$05,$05
|
||||
|
||||
; garbage
|
||||
.byte $d0,$e0,$bc,$b0,$c4,$d8,$d0,$e0,$e0,$d0,$0a,$0a,$22,$00,$05,$05,$fb,$fb,$06,$09,$fa,$f7,$09,$f7,$0f,$f1,$24,$dc,$24
|
||||
.byte $dc,$09,$f7,$09,$f7,$06,$fa,$00,$00,$00,$00,$20,$20,$20,$20,$20,$20,$e0,$e0,$e0,$e0,$e0,$e0,$10,$10,$fa,$fa,$f4,$f4,$0c,$20,$20
|
||||
.byte $0c,$f4,$f4,$0c,$20,$20,$0c,$00,$00,$00,$00,$00,$00,$28,$39,$46,$f9,$07,$07,$f9,$f9,$07,$07,$f9,$4d,$4d,$3f,$3f,$ef,$ef,$11,$11
|
||||
.byte $0e,$0e,$1b,$1b,$11,$11,$e7,$e7,$00,$06,$06,$fa,$0a,$0a,$0a,$0a,$0a,$06,$06,$06,$06,$fa,$fa,$06,$06,$06,$06,$fa,$fa,$04,$04,$fc
|
||||
.byte $fc,$04,$04,$fc,$fc,$0c,$0c,$f4,$f4,$0c,$0c,$f4,$f4,$0c,$0c,$f4,$f4,$06,$00,$4f,$0c,$d0,$d2,$a3,$02,$00,$2c,$0d,$c5,$e4,$e9,$f4
|
||||
.byte $04,$06,$00,$a2,$0d,$c1,$00,$00,$00,$20,$4d,$0a,$a9,$ff,$85,$31,$a0,$00,$a5,$24,$c9,$27,$d0,$09,$20,$8e,$fd,$85,$31,$a9,$06,$85
|
||||
.byte $24,$b1,$12,$c5,$30,$d0,$13,$e6,$31,$a4,$31,$c0,$10,$b0,$0b,$be,$f0,$00,$e4,$24,$90,$04,$86,$24,$90,$d6,$20,$ed,$fd,$e6,$12,$d0
|
||||
|
||||
; 3D mesh Z coordinates (0, 3, ...)
|
||||
ShapeZCoords:
|
||||
; spaceship
|
||||
.byte $00,$03,$fd,$03,$fd,$09,$fa,$09
|
||||
.byte $fa,$fa,$fa,$fa,$fa,$fa,$fa,$fa
|
||||
.byte $fa,$fa,$fa,$fa,$fa,$09,$09,$09
|
||||
.byte $09,$1b,$1b
|
||||
|
||||
; cube
|
||||
.byte $fb,$fb,$fb,$fb,$05
|
||||
.byte $05,$05,$05
|
||||
|
||||
; garbage
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$05,$fb,$05,$fb,$09,$fa,$09,$fa,$fa,$fa,$fa,$fa,$fa,$fa,$fa
|
||||
.byte $fa,$fa,$fa,$fa,$fa,$09,$09,$09,$09,$1e,$1e,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
.byte $00,$e2,$e2,$e0,$e0,$e0,$e0,$fd,$de,$c9,$fd,$de,$c9,$fb,$db,$c6,$c9,$c6,$c6,$c9,$c9,$c6,$c6,$c9,$c6,$c6,$c9,$c9,$28,$28,$2a,$2a
|
||||
.byte $16,$16,$03,$03,$20,$20,$1e,$1e,$5a,$1e,$1e,$1e,$24,$22,$22,$0c,$0c,$12,$12,$10,$10,$0c,$0c,$e8,$e8,$e2,$e2,$e8,$e8,$fa,$fa,$fa
|
||||
.byte $fa,$e8,$e8,$e8,$e8,$f4,$f4,$f4,$f4,$ee,$ee,$ee,$ee,$00,$00,$00,$00,$89,$f6,$01,$e2,$10,$27,$e8,$03,$64,$00,$0a,$00,$01,$00,$2b
|
||||
.byte $35,$25,$37,$00,$4c,$45,$08,$2b,$d7,$02,$58,$36,$01,$f5,$20,$89,$f6,$6c,$3b,$38,$08,$ed,$07,$02,$eb,$f8,$4c,$07,$03,$6c,$38,$ec
|
||||
.byte $28,$db,$02,$a5,$00,$20,$8e,$0a,$20,$89,$f6,$29,$d7,$03,$e2,$00,$60,$00,$20,$8e,$fd,$20,$ce,$0a,$20,$d5,$0e,$20,$c9,$09,$20,$89
|
||||
|
||||
; 3D mesh line definition: start points (0, 0, 0, ...)
|
||||
LineStartPoint: ; b00
|
||||
; spaceship (29 lines)
|
||||
.byte $00,$00,$00,$00,$01,$02,$03,$04
|
||||
.byte $06,$08,$09,$0a,$0b,$0c,$0d,$0e
|
||||
.byte $0f,$10,$11,$12,$13,$05,$07,$13
|
||||
.byte $14,$15,$17,$19,$1a
|
||||
|
||||
; cube (12 lines)
|
||||
.byte $1b,$1c,$1d
|
||||
.byte $1e,$1f,$20,$21,$22,$1b,$1c,$1d
|
||||
.byte $1e
|
||||
|
||||
; junk
|
||||
.byte $26,$27,$28,$29,$2a,$2b,$2d,$2e,$30,$30,$30,$30,$31,$32,$33,$34,$36,$38,$39,$3a,$3b,$3c,$3d
|
||||
.byte $3e,$3f,$40,$41,$42,$43,$35,$37,$43,$44,$45,$47,$49,$48,$4b,$4c,$4d,$4e,$4f,$50,$4b,$57,$59,$51,$5d,$63,$5d,$5e,$5f,$65,$5f,$60
|
||||
.byte $5b,$60,$61,$66,$67,$5c,$5d,$62,$63,$6a,$5e,$5f,$64,$65,$6d,$70,$71,$72,$73,$74,$75,$76,$77,$78,$79,$7a,$7b,$7c,$7d,$7e,$7f,$80
|
||||
.byte $81,$7e,$7f,$7e,$7f,$84,$85,$84,$85,$86,$87,$88,$88,$88,$8c,$8c,$8d,$8e,$89,$8a,$91,$92,$93,$94,$93,$94,$8b,$8b,$97,$98,$99,$97
|
||||
.byte $98,$99,$9a,$9d,$a1,$a9,$9f,$a3,$ab,$9e,$a2,$aa,$a0,$a4,$ac,$39,$a3,$38,$01,$0a,$a5,$03,$4d,$d6,$03,$4a,$37,$38,$25,$39,$11,$3c
|
||||
.byte $00,$29,$71,$28,$71,$00,$20,$da,$0b,$4c,$45,$08,$20,$89,$f6,$e8,$11,$3c,$00,$32,$b0,$71,$e0,$71,$22,$00,$6c,$08,$00,$14,$cd,$fe
|
||||
.byte $00,$20,$ce,$0a,$20,$89,$f6,$29,$3a,$28,$3b,$eb,$00,$20,$8e,$0a,$20,$89,$f6,$29,$38,$2a,$39,$f8,$28,$b9,$f8,$00,$20,$cc,$0b,$20
|
||||
|
||||
; 3D mesh line definition: end points (1, 2, 3, ...)
|
||||
LineEndPoint: ; c00
|
||||
|
||||
; spaceship (29 lines)
|
||||
.byte $01,$02,$03,$04,$05,$06,$07,$08
|
||||
.byte $09,$0a,$0b,$0c,$0d,$0e,$0f,$10
|
||||
.byte $11,$12,$13,$14,$14,$15,$16,$15
|
||||
.byte $16,$16,$19,$1a,$18
|
||||
|
||||
; cube (12 lines)
|
||||
.byte $1c,$1d,$1e
|
||||
.byte $1b,$20,$21,$22,$1f,$1f,$20,$21
|
||||
.byte $22
|
||||
|
||||
; junk
|
||||
.byte $27,$28,$29,$2a,$2b,$2c,$2f,$2f,$31,$32,$33,$34,$35,$36,$37,$38,$39,$3a,$3b,$3c,$3d,$3e,$3f
|
||||
.byte $40,$41,$42,$43,$44,$44,$45,$46,$45,$46,$46,$49,$4a,$4a,$51,$52,$53,$54,$55,$56,$50,$58,$5a,$56,$5e,$64,$63,$64,$60,$66,$65,$66
|
||||
.byte $67,$67,$68,$68,$69,$6a,$6a,$6b,$6b,$6c,$6d,$6d,$6e,$6e,$6f,$71,$72,$73,$70,$75,$76,$77,$74,$79,$7a,$7b,$78,$7d,$7e,$7f,$7c,$82
|
||||
.byte $83,$81,$80,$85,$84,$80,$81,$60,$5d,$84,$85,$89,$8a,$8b,$8d,$8e,$8f,$90,$91,$92,$93,$94,$95,$96,$97,$98,$9b,$9c,$99,$9a,$9a,$9b
|
||||
.byte $9c,$9b,$9c,$a5,$a9,$ad,$a7,$ab,$af,$a6,$aa,$ae,$a8,$ac,$b0,$10,$dd,$08,$3f,$19,$6b,$0f,$00,$20,$d0,$09,$20,$0c,$fd,$c9,$d3,$66
|
||||
.byte $33,$20,$ce,$0a,$a9,$ff,$85,$2f,$d0,$00,$20,$61,$0c,$20,$89,$f6,$11,$00,$02,$29,$d4,$06,$04,$49,$51,$01,$f8,$4a,$06,$03,$51,$01
|
||||
.byte $fa,$21,$3a,$f2,$42,$51,$d3,$07,$fb,$19,$00,$02,$11,$7c,$03,$24,$71,$2a,$71,$00,$20,$7b,$0d,$24,$33,$10,$0c,$20,$0c,$fd,$c9,$83
|
||||
|
||||
;
|
||||
; For shape N, the index of the first point.
|
||||
;
|
||||
; Shape #0 uses points $00-1A, shape #1 uses points $1B-22. (Data at offsets 2-
|
||||
; 15 is junk.)
|
||||
FirstPointIndex:
|
||||
.byte $00,$1b
|
||||
.byte $08,$0c,$0d,$1d,$2d,$30,$4b,$5b,$88,$7c,$03,$61,$39,$e9
|
||||
|
||||
; For shape N, the index of the last point + 1.
|
||||
LastPointIndex:
|
||||
.byte $1b,$23
|
||||
.byte $0c,$0d,$1d,$2d,$30,$4b,$5b,$88,$b1,$2a,$1a,$00,$02,$ba
|
||||
|
||||
;
|
||||
; For shape N, the index of the first line.
|
||||
;
|
||||
; Shape #0 uses lines $00-1C, shape #1 uses lines $1D-28. (Data at offsets 2-15
|
||||
; is junk.)
|
||||
|
||||
FirstLineIndex:
|
||||
.byte $00,$1d
|
||||
.byte $0c,$01,$12,$20,$2f,$31,$4e,$58,$8b,$01,$9c,$00,$a5,$16
|
||||
|
||||
; For shape N, the index of the last point + 1.
|
||||
LastLineIndex:
|
||||
.byte $1d,$29
|
||||
.byte $12,$01,$20,$2f,$31,$4e,$58,$8b,$af,$fe,$4c,$45,$08,$20
|
||||
|
||||
;
|
||||
; Indexes into the rotation tables. One entry for each rotation value (0-27).
|
||||
; The "low" and "high" tables have the same value at each position, just shifted
|
||||
; over 4 bits.
|
||||
;
|
||||
; Mathematically, cosine has the same shape as sine, but is shifted by PI/2 (one
|
||||
; quarter period) ahead of it. That's why there are two sets of tables, one of
|
||||
; which is shifted by 7 bytes.
|
||||
;
|
||||
; See the comments above RotTabLo for more details.
|
||||
;
|
||||
|
||||
RotIndexLo_sin:
|
||||
.byte $70,$60,$50,$40,$30,$20,$10,$00
|
||||
.byte $10,$20,$30,$40,$50,$60,$70,$80
|
||||
.byte $90,$a0,$b0,$c0,$d0,$e0,$d0,$c0
|
||||
.byte $b0,$a0,$90,$80
|
||||
|
||||
RotIndexHi_sin:
|
||||
.byte $07,$06,$05,$04,$03,$02,$01,$00
|
||||
.byte $01,$02,$03,$04,$05,$06,$07,$08
|
||||
.byte $09,$0a,$0b,$0c,$0d,$0e,$0d,$0c
|
||||
.byte $0b,$0a,$09,$08
|
||||
|
||||
RotIndexLo_cos:
|
||||
.byte $00,$10,$20,$30,$40,$50,$60,$70
|
||||
.byte $80,$90,$a0,$b0,$c0,$d0,$e0,$d0
|
||||
.byte $c0,$b0,$a0,$90,$80,$70,$60,$50
|
||||
.byte $40,$30,$20,$10
|
||||
|
||||
RotIndexHi_cos:
|
||||
.byte $00,$01,$02,$03,$04,$05,$06,$07
|
||||
.byte $08,$09,$0a,$0b,$0c,$0d,$0e,$0d
|
||||
.byte $0c,$0b,$0a,$09,$08,$07,$06,$05
|
||||
.byte $04,$03,$02,$01
|
||||
|
||||
;
|
||||
; Indexes into the scale tables. One entry for each scale value (0-15). See
|
||||
; the comments above ScaleTabLo for more details.
|
||||
;
|
||||
ScaleIndexLo:
|
||||
.byte $00,$10,$20,$30,$40,$50,$60,$70,$80,$90,$a0,$b0,$c0,$d0,$e0,$f0
|
||||
|
||||
ScaleIndexHi:
|
||||
.byte $00,$01,$02,$03,$04,$05,$06,$07,$08,$09,$0a,$0b,$0c,$0d,$0e,$0f
|
||||
|
||||
;
|
||||
; Junk, pads to end of 256-byte page.
|
||||
.align $0100 ; (48 bytes)
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,33 @@
|
|||
OpDEY = $88 ; DEY opcode
|
||||
OpINY = $c8 ; INY opcode
|
||||
OpDEX = $ca ; DEX opcode
|
||||
OpINX = $e8 ; INX opcode
|
||||
OpNOP = $ea ; NOP opcode
|
||||
|
||||
; zero page addresses
|
||||
|
||||
MON_WNDLEFT = $20 ; left column of scroll window
|
||||
MON_WNDWDTH = $21 ; width of scroll window
|
||||
MON_WNDTOP = $22 ; top of scroll window
|
||||
MON_WNDBTM = $23 ; bottom of scroll window
|
||||
MON_CH = $24 ; cursor horizontal displacement
|
||||
MON_CV = $25 ; cursor vertical displacement
|
||||
MON_CSWL = $36 ; character output hook (lo)
|
||||
MON_CSWH = $37 ; character output hook (hi)
|
||||
BAS_ARYTAB = $6b ; pointer to start of Applesoft array space (2b)
|
||||
|
||||
; Clear variables
|
||||
|
||||
HPTR = $06
|
||||
HPAGE = $18 ; hi-res page ($20 or $40)
|
||||
XSTART = $1c
|
||||
YSTART = $1d
|
||||
XEND = $1e
|
||||
YEND = $1f
|
||||
DELTA_X = $3c
|
||||
DELTA_Y = $3d
|
||||
LINE_ADJ = $3e
|
||||
LINE_INDEX = $43
|
||||
YSAVE = $00
|
||||
FIRST_LINE = $45
|
||||
LAST_LINE = $46
|
||||
|
|
@ -1,13 +1,3 @@
|
|||
CODE_arr = $6008 ; CODE array (dummy address)
|
||||
X_arr = $602f ; X array (dummy address)
|
||||
Y_arr = $6056 ; Y array (dummy address)
|
||||
SCALE_arr = $607d ; SCALE array (dummy address)
|
||||
XROT_arr = $60a4 ; XROT array (dummy address)
|
||||
YROT_arr = $60cb ; YROT array (dummy address)
|
||||
ZROT_arr = $60f2 ; ZROT array (dummy address)
|
||||
SX_arr = $6119 ; SX array (dummy address)
|
||||
SY_arr = $6140 ; SY array (dummy address)
|
||||
|
||||
; soft switches
|
||||
TXTCLR = $c050 ; RW display graphics
|
||||
MIXCLR = $c052 ; RW display full screen
|
||||
|
|
|
|||
|
|
@ -1,3 +1,2 @@
|
|||
10 POKE 24576,0: POKE 103,1: POKE 104,96: POKE 175,1: POKE 176,96
|
||||
30 PRINT CHR$ (4)"RUN TEST"
|
||||
10 PRINT CHR$ (4)"BRUN SHIP_CUBE"
|
||||
|
||||
|
|
|
|||
|
|
@ -14,52 +14,47 @@
|
|||
; "edges". For consistency the same nomenclature is used here.
|
||||
;
|
||||
; Two shapes are defined: the space shuttle model from the manual, and a
|
||||
; simple cube 11 units on a side. The module is configured for XOR drawing,
|
||||
; Applesoft BASIC interface, and includes the hi-res character generator.
|
||||
;
|
||||
; simple cube 11 units on a side. The module is configured for XOR drawing
|
||||
|
||||
; This makes extensive use of self-modifying code. Labels that begin with an
|
||||
; underscore indicate self-modification targets.
|
||||
|
||||
; Note from Vince Weaver
|
||||
; + I've taken the disassembly and am converting it to assembly language
|
||||
; I guess it might make more sense to get an assembly language kernel
|
||||
; from the program, but I'm going to modify the BASIC anyway
|
||||
|
||||
|
||||
|
||||
;===========================================================================
|
||||
; Code interacts with the module by setting values in arrays and calling known
|
||||
; entry points. The basic setup for Applesoft BASIC is:
|
||||
;
|
||||
; 1 DIM CODE%(15), X%(15), Y%(15), SCALE%(15), XROT%(15), YROT%(15),
|
||||
; ZROT%(15), SX%(15), SY%(15)
|
||||
; 2 RESET% = 7932:CLR% = 7951:HIRES% = 7983:CRNCH% = 7737:TXTGEN% = 768
|
||||
;
|
||||
; You can define up to 16 shapes. Their parameters are stored in the various
|
||||
; arrays:
|
||||
;
|
||||
; CODE%(n): 0 (do nothing), 1 (transform & draw), 2 (erase previous,
|
||||
; CODE_arr+N: 0 (do nothing), 1 (transform & draw), 2 (erase previous,
|
||||
; transform, draw new), 3 (erase).
|
||||
; X%(n): X coordinate of center (0-255).
|
||||
; Y%(n): Y coordinate of center (0-191).
|
||||
; SCALE%(n): scale factor, 0-15. 15 is full size, 0 is 1/16th.
|
||||
; XROT%(n): rotation about X axis, 0-27. 0 is no rotation, 27 is just shy
|
||||
; of 360 degrees.
|
||||
; YROT%(n): rotation about Y axis.
|
||||
; ZROT%(n): rotation about Z axis.
|
||||
; SX%(n): (output) X coordinate of last point drawn.
|
||||
; SY%(n): (output) Y coordinate of last point drawn.
|
||||
; X_arr+N: X coordinate of center (0-255).
|
||||
; Y_arr+N: Y coordinate of center (0-191).
|
||||
; SCALE_arr+N: scale factor, 0-15. 15 is full size, 0 is 1/16th.
|
||||
; XROT_arr+N: rotation about X axis, 0-27. 0 is no rotation, 27 is just shy
|
||||
; of 360 degrees.
|
||||
; YROT_arr+N: rotation about Y axis.
|
||||
; ZROT_arr+N: rotation about Z axis.
|
||||
; SX_arr+N: (output) X coordinate of last point drawn.
|
||||
; SY_arr+N: (output) Y coordinate of last point drawn.
|
||||
;
|
||||
; The code entry points are:
|
||||
; RESET%: initializes graphics module, clears the screen, switches display
|
||||
; RESET: initializes graphics module, clears the screen, switches display
|
||||
; to primary hi-res page.
|
||||
; CLR%: clears both hi-res screens and switches to primary hi-res page.
|
||||
; HIRES%: turns on primary hi-res page.
|
||||
; CRNCH%: primary animation function.
|
||||
; CLR: clears both hi-res screens and switches to primary hi-res page.
|
||||
; HIRES: turns on primary hi-res page.
|
||||
; CRUNCH: primary animation function.
|
||||
;
|
||||
; The "CRUNCH" function:
|
||||
; - erases objects whose CODE value is 2 or 3
|
||||
; - computes new transformations for objects whose CODE value is 1 or 2
|
||||
; - draws objects whose CODE value is 1 or 2
|
||||
; - flips the display to the other page
|
||||
;
|
||||
; When configured for Integer BASIC, some of the array management is simpler,
|
||||
; and an additional "missile" facility is available.
|
||||
;
|
||||
; When configured for use with assembly language, the various arrays live at
|
||||
; fixed offsets starting around $6000.
|
||||
;============================================================================
|
||||
|
||||
.include "zp.inc"
|
||||
|
|
@ -68,7 +63,84 @@
|
|||
|
||||
; org $0300
|
||||
|
||||
.include "hgr_textgen.s"
|
||||
entry:
|
||||
jsr RESET
|
||||
|
||||
; CODE[0]=1 -> transform and draw
|
||||
; CODE[1]=1 -> transform and draw
|
||||
|
||||
lda #1
|
||||
sta CODE_arr
|
||||
sta CODE_arr+1
|
||||
|
||||
; X[0]=127 Y[0]=96:X[1]=20:Y[1]=30 -> co-ord of center
|
||||
|
||||
lda #127
|
||||
sta X_arr
|
||||
lda #96
|
||||
sta Y_arr
|
||||
|
||||
lda #20
|
||||
sta X_arr+1
|
||||
lda #30
|
||||
sta Y_arr+1
|
||||
|
||||
; SCALE[0]=15:XROT[0]=2:YROT[0]=5:ZROT[0]=0
|
||||
; SCALE[1]=15:XROT[1]=2:YROT[1]=5:ZROT[1]=0
|
||||
|
||||
lda #15
|
||||
sta SCALE_arr
|
||||
sta SCALE_arr+1
|
||||
|
||||
lda #2
|
||||
sta XROT_arr
|
||||
sta XROT_arr+1
|
||||
|
||||
lda #5
|
||||
sta YROT_arr
|
||||
sta YROT_arr+1
|
||||
|
||||
lda #0
|
||||
sta ZROT_arr
|
||||
sta ZROT_arr+1
|
||||
|
||||
jsr CRUNCH
|
||||
jsr CRUNCH
|
||||
|
||||
; CODE[0]=2:CODE[1]=2 -> erase and draw new
|
||||
|
||||
lda #2
|
||||
sta CODE_arr
|
||||
sta CODE_arr+1
|
||||
|
||||
loop:
|
||||
; ZROT[0]+=1: IF ZEROT[0]==28 THEN ZROT[0]=0
|
||||
; YROT[1]=ZROT[0]
|
||||
|
||||
inc ZROT_arr
|
||||
lda ZROT_arr
|
||||
cmp #28
|
||||
bne zrot_ok
|
||||
lda #0
|
||||
sta ZROT_arr
|
||||
zrot_ok:
|
||||
sta YROT_arr+1
|
||||
|
||||
jsr CRUNCH
|
||||
|
||||
jmp loop
|
||||
|
||||
nop
|
||||
.align $100 ; 400
|
||||
nop
|
||||
.align $100 ; 500
|
||||
nop
|
||||
.align $100 ; 600
|
||||
nop
|
||||
.align $100 ; 700
|
||||
nop
|
||||
.align $100 ; 700
|
||||
|
||||
|
||||
;===========================================================
|
||||
; If configured without the HRCG, the module starts here. *
|
||||
|
|
@ -878,17 +950,17 @@ SavedShapeIndex:
|
|||
;LAST_LINE = $46
|
||||
|
||||
CRUNCH:
|
||||
jsr Setup ; 6 find Applesoft arrays
|
||||
; jsr Setup ; 6 find Applesoft arrays
|
||||
|
||||
;==============================
|
||||
; First pass: erase old shapes
|
||||
;==============================
|
||||
|
||||
lda NumObjects ; 4 number of defined objects
|
||||
asl ; 2 * 2
|
||||
; asl ; 2 * 2
|
||||
tax ; 2 use as index
|
||||
ShapeLoop:
|
||||
dex ; 2
|
||||
; dex ; 2
|
||||
dex ; 2
|
||||
bmi Transform ; 2+ done
|
||||
_codeAR1:
|
||||
|
|
@ -896,9 +968,9 @@ _codeAR1:
|
|||
cmp #$02 ; 2 2 or 3?
|
||||
bcc ShapeLoop ; 2+ no, move on
|
||||
stx SavedShapeIndex ; 4
|
||||
txa ; 2
|
||||
lsr ; 2
|
||||
tax ; 2
|
||||
; txa ; 2
|
||||
; lsr ; 2
|
||||
; tax ; 2
|
||||
lda FirstLineIndex,X; 4+
|
||||
sta FIRST_LINE ; 3
|
||||
lda LastLineIndex,X ; 4+
|
||||
|
|
@ -916,10 +988,10 @@ NoLines1:
|
|||
;===============================
|
||||
Transform:
|
||||
lda NumObjects ; 4
|
||||
asl ; 2
|
||||
; asl ; 2
|
||||
tax ; 2
|
||||
TransLoop:
|
||||
dex ; 2
|
||||
; dex ; 2
|
||||
dex ; 2
|
||||
bmi DrawNew ; 2+
|
||||
_codeAR2:
|
||||
|
|
@ -950,9 +1022,9 @@ _xrotAR:
|
|||
lda XROT_arr,X ; 4+
|
||||
sta xrot ; 3
|
||||
stx SavedShapeIndex ; 4 save this off
|
||||
txa ; 2
|
||||
lsr ; 2 convert to 1x index
|
||||
tax ; 2
|
||||
; txa ; 2
|
||||
; lsr ; 2 convert to 1x index
|
||||
; tax ; 2
|
||||
lda FirstPointIndex,X; 4+
|
||||
sta FIRST_LINE ; 3 (actually first_point)
|
||||
lda LastPointIndex,X; 4+
|
||||
|
|
@ -981,10 +1053,10 @@ _syAR:
|
|||
|
||||
DrawNew:
|
||||
lda NumObjects ; 4
|
||||
asl ; 2
|
||||
; asl ; 2
|
||||
tax ; 2
|
||||
L1ECE:
|
||||
dex ; 2
|
||||
; dex ; 2
|
||||
dex ; 2
|
||||
bmi L1EF9 ; 2+
|
||||
_codeAR3:
|
||||
|
|
@ -993,9 +1065,9 @@ _codeAR3:
|
|||
cmp #$03 ; 2
|
||||
beq L1ECE ; 2+ yup, no draw
|
||||
stx SavedShapeIndex ; 4 save index
|
||||
txa ; 2
|
||||
lsr ; 2 convert it back to 1x index
|
||||
tax ; 2
|
||||
; txa ; 2
|
||||
; lsr ; 2 convert it back to 1x index
|
||||
; tax ; 2
|
||||
lda FirstLineIndex,X; 4+ draw all the lines in the shape
|
||||
sta FIRST_LINE ; 3
|
||||
lda LastLineIndex,X ; 4+
|
||||
|
|
@ -1020,7 +1092,9 @@ L1EF9:
|
|||
;*******************************************************************************
|
||||
|
||||
RESET:
|
||||
jsr Setup ; 6 sets A=0, Y=$1E
|
||||
; jsr Setup ; 6 sets A=0, Y=$1E
|
||||
lda #$0
|
||||
ldy #$F
|
||||
_codeAR4:
|
||||
sta CODE_arr,y ; 5 zero out CODE%
|
||||
dey ; 2
|
||||
|
|
@ -1082,6 +1156,30 @@ HI_RES:
|
|||
; If you generate the module for Integer BASIC, this is the entry point for
|
||||
; MISSILE (7993).
|
||||
|
||||
|
||||
CODE_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
X_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
Y_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
XROT_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
YROT_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
ZROT_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
SCALE_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
SX_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
SY_arr:
|
||||
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
||||
|
||||
|
||||
|
||||
.if 0
|
||||
|
||||
Setup:
|
||||
lda BAS_ARYTAB ; 3 CODE% is at +$0008
|
||||
clc ; 2
|
||||
|
|
@ -1164,6 +1262,7 @@ Setup:
|
|||
ldy #$1e ; 2 Set A and Y for RESET
|
||||
lda #$00 ; 2
|
||||
rts ; 6
|
||||
.endif
|
||||
|
||||
; Junk; pads binary to end of page.
|
||||
.align $0100
|
||||
|
|
|
|||
Loading…
Reference in New Issue