2019-09-19 23:43:58 +00:00
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// BUILD with millfork demo.mfk -t atari_lynx -o lynx
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2019-09-18 00:49:03 +00:00
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// the lynx.o file will have the correct header to load into Handy Emulator
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// highly recommended to use compressed atari bitmap formats for art via
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// https://github.com/Wookie/sprpck
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// sprpck.exe -a080014 -v logo.pcx logo
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// from CC64 suzy.h
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// this is the suzy sprite format
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// this is the largest type supported
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// see atari lynx hardware documents found here
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// https://atarilynxdeveloper.wordpress.com/documentation/
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struct SCB_REHVST_PAL {
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byte spctrl0
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byte spctrl1
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byte spcollision
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word next
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word image
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word xpos
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word ypos
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word width
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word height
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word stretch
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word tilt
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byte remap01
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byte remap23
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byte remap45
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byte remap67
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byte remap89
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byte remapAB
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byte remapCD
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byte remapEF
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}
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SCB_REHVST_PAL demosp @$5000
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void initDemoSprite() {
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// set Bits per pixel and type of sprite SEE atari_lynx.mfk for options
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demosp.spctrl0 = BPP_4 | TYPE_BACKNONCOLL
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// set the sprite format, here we use the most complex one.
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demosp.spctrl1 = REHVST
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demosp.spcollision = 0
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// set location
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demosp.xpos = 80
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demosp.ypos = 51
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// atari sprites are a chain so to draw more you add them to the prior sprite's next
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demosp.next = 0
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// width is defined as 8:8 fixed point , where $100 = 1.00,$200 = 2.0,$80=0.5 etc
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demosp.width = $100
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demosp.height = $100
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demosp.tilt = 0
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demosp.stretch = 0
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// image to use
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demosp.image = background_sprite.addr
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// you can remap any pen per sprite if you wish
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// more useful for BPP_1-BPP_3
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demosp.remap01 = $01
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demosp.remap23 = $23
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demosp.remap45 = $45
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demosp.remap67 = $67
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demosp.remap89 = $89
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demosp.remapAB = $ab
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demosp.remapCD = $cd
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demosp.remapEF = $ef
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}
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void main() {
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byte i
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byte t
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pointer dest
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pointer source
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// see atari_lynx_hardware.mfk
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// we set suzy to $dc00 for display address
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// 60hz display as recommended
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lynx_init()
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initDemoSprite()
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// copy the palette
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i = 0
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for t,0,until,16 {
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palette_ram_green[t]=palette[i]
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palette_ram_blue_red[t]=palette[i+1]
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i+=2
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}
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while true {
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// wait for the "raster" to hit 60
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// while we wait set the blue + red to the current raster pos
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while RASTER!=60 {
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palette_ram_blue_red[0]=RASTER
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}
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2019-09-19 23:43:58 +00:00
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read_joy()
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2019-09-18 00:49:03 +00:00
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// tell suzy to process our commands
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VIDBASE = $dc00
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SPRGO = 1
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SCBNEXT=demosp.addr
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SUZYDONEACK = 1
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// wait until finished
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lynx_wait_suzy()
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SUZYDONEACK = 0
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2019-09-18 00:50:37 +00:00
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// check for button held
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// if so , we scale the sprite
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2019-09-18 00:49:03 +00:00
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if input_btn!=0 {
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2019-09-19 23:43:58 +00:00
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demosp.width += input_dx
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demosp.height += input_dy
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2019-09-18 00:49:03 +00:00
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}
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else {
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2019-09-18 00:50:37 +00:00
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// or just move it
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2019-09-19 23:43:58 +00:00
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// FIXME: word-subbyte doesn't work yet
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2019-09-18 00:49:03 +00:00
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if input_dy==$ff {
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demosp.ypos+=1
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}
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if input_dy==$01 {
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demosp.ypos-=1
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}
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2019-09-19 23:43:58 +00:00
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demosp.xpos += input_dx
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2019-09-18 00:49:03 +00:00
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}
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}
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}
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// image encoded with sprpack
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array background_sprite=[
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$18, $15, $10, $23, $BC, $7A, $80, $8C, $0B, $49, $08, $8C,
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$8B, $89, $52, $91, $01, $88, $74, $20, $98, $80, $A0, $00,
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$1A, $15, $14, $24, $35, $C4, $A9, $75, $68, $80, $B4, $B0,
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$9E, $CD, $71, $68, $5B, $0E, $15, $46, $44, $20, $88, $80,
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$9C, $00, $15, $15, $1C, $23, $BC, $7A, $88, $81, $69, $A1,
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$11, $90, $D4, $38, $75, $0E, $3D, $43, $5E, $01, $00, $12,
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$15, $24, $03, $C5, $A8, $F4, $96, $9E, $10, $10, $D4, $39,
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$74, $1E, $78, $40, $00, $12, $15, $24, $20, $21, $E2, $D4,
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$38, $B4, $F0, $08, $40, $43, $CC, $A8, $F6, $B8, $00, $11,
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$15, $2C, $21, $A1, $E5, $53, $80, $42, $10, $86, $B6, $A1,
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$C1, $A8, $0A, $C0, $12, $15, $30, $22, $3A, $AA, $58, $40,
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$4B, $10, $10, $84, $35, $B5, $3E, $AD, $14, $80, $13, $15,
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$38, $24, $35, $C7, $A4, $04, $05, $70, $20, $86, $87, $97,
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$41, $E8, $C8, $98, $00, $12, $15, $3C, $24, $13, $C6, $A2,
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$84, $05, $B0, $50, $86, $87, $97, $41, $E8, $69, $40, $11,
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$15, $3C, $02, $10, $D3, $51, $01, $B0, $80, $80, $87, $99,
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$41, $E8, $08, $C0, $0E, $78, $38, $20, $2D, $88, $0A, $C2,
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$5B, $D4, $DE, $86, $88, $00, $07, $78, $3C, $1E, $0F, $07,
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$80, $07, $78, $3C, $1E, $0F, $07, $80, $07, $78, $3C, $1E,
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$0F, $07, $80, $01, $17, $85, $07, $84, $10, $10, $F1, $28,
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$3D, $0D, $28, $16, $90, $10, $D3, $54, $64, $42, $05, $80,
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$8A, $61, $60, $13, $97, $50, $84, $21, $A1, $E2, $54, $BA,
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$84, $C0, $5A, $78, $08, $20, $2F, $88, $43, $40, $11, $86,
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$88, $23, $3C, $4A, $0F, $43, $50, $05, $A7, $84, $01, $F0,
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$18, $78, $00, $11, $08, $40, $43, $C5, $A8, $F4, $A4, $0B,
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$4E, $08, $0B, $E2, $30, $2F, $08, $00, $14, $84, $87, $89,
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$52, $EA, $15, $81, $69, $61, $01, $7C, $46, $04, $21, $01,
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$0F, $40, $5A, $00, $10, $3D, $43, $5A, $05, $A5, $03, $E0,
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$30, $10, $8E, $D1, $3A, $12, $B0, $00, $12, $35, $42, $5C,
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$05, $A4, $03, $E0, $30, $10, $86, $8B, $89, $41, $E8, $C8,
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$A0, $00, $13, $1D, $07, $A1, $AF, $02, $D1, $81, $F0, $18,
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$20, $47, $68, $3C, $5A, $0F, $46, $B4, $C0, $14, $15, $07,
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$A0, $2F, $08, $01, $68, $81, $01, $7C, $46, $04, $E1, $0D,
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$0F, $26, $A1, $24, $00, $0E, $16, $BC, $06, $05, $D1, $84,
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$05, $D1, $01, $60, $38, $42, $00, $07, $78, $3C, $1E, $0F,
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$07, $80, $07, $78, $3C, $1E, $0F, $07, $80, $07, $78, $3C,
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$1E, $0F, $07, $80, $07, $78, $3C, $1E, $0F, $07, $80, $01,
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$16, $35, $47, $B5, $A1, $0D, $0F, $1A, $A1, $22, $00, $F1,
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$6A, $3D, $AF, $00, $84, $25, $35, $0E, $10, $00, $15, $35,
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$47, $B5, $81, $19, $E3, $54, $78, $44, $11, $AE, $3D, $47,
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$B5, $E1, $10, $94, $D4, $38, $40, $16, $0F, $12, $A3, $DA,
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$B0, $8D, $71, $AA, $3D, $A2, $08, $8F, $2E, $A0, $2E, $08,
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$4A, $6A, $1C, $20, $00, $14, $88, $F1, $2A, $3D, $A9, $08,
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$09, $E8, $3C, $50, $88, $F2, $E9, $C1, $09, $4D, $43, $84,
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$00, $18, $10, $47, $78, $35, $1E, $D3, $84, $24, $3C, $6A,
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$80, $A4, $23, $BC, $9A, $8F, $53, $02, $12, $9A, $87, $08,
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$00, $19, $86, $88, $28, $3D, $5D, $A5, $08, $8F, $1A, $83,
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$D0, $D5, $84, $77, $93, $41, $E8, $0A, $82, $12, $9A, $87,
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$08, $00, $19, $97, $50, $84, $26, $35, $DA, $40, $80, $87,
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$8B, $52, $EA, $16, $84, $35, $54, $1E, $86, $A4, $21, $29,
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$A8, $70, $80, $17, $15, $43, $44, $11, $D1, $18, $43, $4D,
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$41, $E8, $6B, $C2, $40, $3C, $AA, $87, $24, $21, $29, $A8,
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$70, $80, $17, $0D, $07, $A1, $25, $09, $0D, $71, $AA, $3C,
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$2F, $01, $04, $77, $97, $50, $13, $84, $25, $35, $0E, $10,
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$00, $0F, $2E, $C0, $44, $09, $D7, $81, $C2, $02, $CD, $30,
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$40, $55, $A2, $00, $07, $78, $3C, $1E, $0F, $07, $80, $07,
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$78, $3C, $1E, $0F, $07, $80, $07, $78, $3C, $1E, $0F, $07,
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$80, $07, $78, $3C, $1E, $0F, $07, $80, $01, $14, $35, $47,
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$B5, $E1, $01, $45, $4E, $44, $34, $75, $2E, $A1, $78, $08,
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$21, $29, $A8, $70, $80, $16, $35, $47, $B5, $E1, $30, $1A,
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$E2, $D0, $7A, $62, $03, $21, $A8, $C8, $BC, $06, $10, $94,
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$D4, $38, $40, $13, $35, $47, $B5, $E0, $10, $90, $EF, $1E,
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$A1, $A1, $00, $EB, $C0, $A0, $9A, $0F, $08, $00, $11, $35,
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$47, $B5, $E0, $40, $8D, $71, $EA, $1A, $F0, $38, $42, $53,
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$50, $E1, $00, $0E, $35, $47, $B5, $E0, $40, $8E, $F1, $EA,
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$1C, $F0, $78, $18, $00, $0F, $35, $47, $B5, $E0, $40, $8E,
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$F1, $EA, $1C, $60, $78, $B0, $44, $00, $11, $35, $47, $B5,
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$E0, $40, $8E, $F1, $EA, $1C, $50, $86, $BE, $97, $50, $E1,
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$00, $12, $35, $47, $B5, $E0, $40, $8E, $F1, $EA, $1C, $50,
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$8E, $F3, $E9, $55, $0E, $10, $00, $11, $35, $47, $B5, $E0,
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$40, $8E, $F2, $28, $A1, $1D, $E7, $D2, $AA, $1C, $20, $00,
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$10, $35, $47, $B5, $E0, $40, $86, $A6, $8A, $11, $DE, $7D,
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$2A, $A1, $C2, $00, $07, $78, $3C, $1E, $0F, $07, $80, $07,
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$78, $3C, $1E, $0F, $07, $80, $07, $78, $3C, $1E, $0F, $07,
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$80, $07, $78, $3C, $1E, $0F, $07, $80, $00
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]
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// colors are 0000GGGG,BBBBRRRR
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array palette = [
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$00,$10,
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$02,$33,
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$04,$65,
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$03,$77,
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$08,$A8,
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$0C,$C7,
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$08,$93,
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$04,$41,
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$03,$39,
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$06,$49,
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$09,$3E,
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$06,$7D,
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$09,$7D,
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$07,$36,
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$0C,$4C,
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$0E,$BF
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]
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