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graphics: hgr: xw
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39
graphics/hgr/xw/Makefile
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39
graphics/hgr/xw/Makefile
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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/empty.dsk
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all: xw.dsk
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xw.dsk: HELLO XW XW.BAS
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cp $(EMPTY_DISK) xw.dsk
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$(DOS33) -y xw.dsk SAVE A HELLO
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$(DOS33) -y xw.dsk SAVE A XW.BAS
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$(DOS33) -y xw.dsk BSAVE -a 0x70 XW
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###
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HELLO: hello.bas
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$(TOKENIZE) < hello.bas > HELLO
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###
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XW.BAS: xw.bas
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$(TOKENIZE) < xw.bas > XW.BAS
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###
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XW: xw.o
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ld65 -o XW xw.o -C $(LINKER_SCRIPTS)/apple2_70_zp.inc
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xw.o: xw.s
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ca65 -o xw.o xw.s -l xw.lst
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###
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clean:
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rm -f *~ *.o *.lst XW
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2
graphics/hgr/xw/hello.bas
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2
graphics/hgr/xw/hello.bas
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5 HOME
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10 PRINT CHR$(4);"CATALOG"
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9
graphics/hgr/xw/xw.bas
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9
graphics/hgr/xw/xw.bas
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10 HIMEM:8162
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20 POKE 232,226:POKE 233,31
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30 FOR L=8162 TO 8175: READ B:POKE L,B:NEXT L
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35 HGR:ROT=0:SCALE=5
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40 FOR I=1 TO 5: XDRAW 1 AT I*25,100:ROT=I*4:NEXT I
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90 END
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100 DATA 1,0,4,0,137,164,55,63,156,164
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101 DATA 37,45,6,0
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127
graphics/hgr/xw/xw.s
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127
graphics/hgr/xw/xw.s
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; Tiny xw
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; zero page locations
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HGR_SHAPE = $1A
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HGR_SHAPE2 = $1B
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HGR_BITS = $1C
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GBASL = $26
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GBASH = $27
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A5H = $45
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XREG = $46
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YREG = $47
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; C0-CF should be clear
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; D0-DF?? D0-D5 = HGR scratch?
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HGR_DX = $D0 ; HGLIN
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HGR_DX2 = $D1 ; HGLIN
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HGR_DY = $D2 ; HGLIN
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HGR_QUADRANT = $D3
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HGR_E = $D4
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HGR_E2 = $D5
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HGR_X = $E0
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HGR_X2 = $E1
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HGR_Y = $E2
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HGR_COLOR = $E4
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HGR_HORIZ = $E5
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HGR_PAGE = $E6
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HGR_SCALE = $E7
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HGR_SHAPE_TABLE = $E8
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HGR_SHAPE_TABLE2= $E9
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HGR_COLLISIONS = $EA
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; soft-switch
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PAGE1 = $C054
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; ROM calls
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HGR2 = $F3D8
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HGR = $F3E2
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HPOSN = $F411
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XDRAW0 = $F65D
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XDRAW1 = $F661
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RESTORE = $FF3F
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WAIT = $FCA8 ;; delay 1/2(26+27A+5A^2) us
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HCLR = $F3F2 ; A=0, Y=0 after, X unchanged
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OUR_ROT=$E0
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.zeropage
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.globalzp rot_smc
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; spinning dsr logo
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dsr_spin:
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jsr HGR2 ; Hi-res, full screen ; 3
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; Y=0, A=0 after this call
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sty HGR_SCALE ; 2 init scale to 0
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;=========================================
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; MAIN LOOP
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;=========================================
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main_loop:
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inc HGR_SCALE ; 2 ; increment scale
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inc rot_smc+1 ; 2 ; rotate
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inc rot_smc+1 ; 2
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;=======================
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; xdraw
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;=======================
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xdraw:
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; setup X and Y co-ords
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ldy #0 ; XPOSH always 0 for us
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ldx #110
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lda #96
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jsr HPOSN ; X= (y,x) Y=(a)
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; after, A=COLOR.BITS
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; Y = xoffset (140/7=20?)
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; X = remainder?
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jsr HCLR ; A=0 and Y=0 after, X=unchanged
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ldx #<shape_dsr ; point to our shape
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; ldy #>shape_dsr ; this is always zero since in zero page
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rot_smc:
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lda #$0 ; set rotation
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jsr XDRAW0 ; XDRAW 1 AT X,Y
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flip_page:
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; flip draw page $20/$40
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lda HGR_PAGE
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eor #$60
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sta HGR_PAGE
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; flip page
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; have $20/$40 want to map to C054/C055
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asl
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asl ; $20 -> C=1 $00
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asl ; $40 -> C=0 $00
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rol
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tax
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sta PAGE1,X
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; A and X are 0/1 here
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; if rot_smc not 64 then loop
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bit rot_smc+1 ; set V if bit 6 set
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bvc main_loop ; 2
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; fall through at end and crash
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shape_dsr:
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.byte $89,$a4,$37,$3f
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.byte $9c,$a4,$25,$2d,$06,$00
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25
graphics/hgr/xw/xw.shape
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25
graphics/hgr/xw/xw.shape
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# Number of shapes
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1
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START
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NRT
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NRT
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NDN
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UP
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UP
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NDN
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LT
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DN
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LT
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LT
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UP
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NLT
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NDN
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UP
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UP
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NDN
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RT
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UP
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RT
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RT
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DN
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STOP
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