193 lines
6.5 KiB
Plaintext
193 lines
6.5 KiB
Plaintext
( draw routines )
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%RTN { JMP2r }
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%++ { #0001 ADD2 }
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%8+ { #0008 ADD2 }
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%ABS2 { DUP2 #000f SFT2 #ffff SWP2 SWP POP MUL2? }
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;label { x 2 y 2 color 1 addr 2 }
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;pict { x 2 y 2 width 2 height 2 color 1 addr 2 }
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;rect { x1 2 y1 2 x2 2 y2 2 }
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;color { byte 1 }
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( clean up )
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;a { x 2 y 2 }
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;b { x 2 y 2 }
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;s { x 2 y 2 }
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;d { x 2 y 2 }
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;err { short 2 }
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;err2 { short 2 }
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|0100 @RESET
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#0010 #0020 #0040 #0060 #01 ,fill-rect JSR2
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#0020 #0030 #0050 #0070 #02 ,fill-rect JSR2
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#0030 #0040 #0060 #0080 #03 ,fill-rect JSR2
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#0070 #0020 #00a0 #0060 #01 ,line-rect JSR2
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#0080 #0030 #00b0 #0070 #02 ,line-rect JSR2
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#0090 #0040 #00c0 #0080 #03 ,line-rect JSR2
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#0000 #0080 #0020 #0020 #01 ,pict_small ,draw-picture JSR2
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#0010 #0088 #0020 #0020 #02 ,pict_small ,draw-picture JSR2
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#0020 #0090 #0020 #0020 #03 ,pict_small ,draw-picture JSR2
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#0030 #0098 #0020 #0020 #04 ,pict_small ,draw-picture JSR2
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#0028 #0068 #01 ,text ,draw-label JSR2
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#0038 #0078 #02 ,text ,draw-label JSR2
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#0048 #0088 #03 ,text ,draw-label JSR2
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#0058 #0098 #04 ,text ,draw-label JSR2
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#0020 #0020 #0070 #0080 #01 ,draw-line JSR2
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#0020 #0080 #0070 #0030 #02 ,draw-line JSR2
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#00a0 #0020 #0050 #00b0 #03 ,draw-line JSR2
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#00b0 #0090 #0030 #0010 #01 ,draw-line JSR2
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BRK
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@line-rect ( x1 y1 x2 y2 color )
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( load ) =color =rect.y2 =rect.x2 DUP2 =Screen.y =rect.y1 DUP2 =Screen.x =rect.x1
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$hor
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( incr ) ~Screen.x ++ =Screen.x
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( draw ) ~rect.y1 =Screen.y ~color =Screen.color
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( draw ) ~rect.y2 =Screen.y ~color =Screen.color
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,$hor ~Screen.x ~rect.x2 LTH2 JMP2?
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~rect.y1 =Screen.y
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$ver
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( draw ) ~rect.x1 =Screen.x ~color =Screen.color
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( draw ) ~rect.x2 =Screen.x ~color =Screen.color
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( incr ) ~Screen.y ++ =Screen.y
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,$ver ~Screen.y ~rect.y2 ++ LTH2 JMP2?
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RTN
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@fill-rect ( x1 y1 x2 y2 color )
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( load ) =color =rect.y2 =rect.x2 DUP2 =Screen.y =rect.y1 DUP2 =Screen.x =rect.x1
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$ver
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~rect.x1 =Screen.x
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$hor
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( draw ) ~color =Screen.color
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( incr ) ~Screen.x ++ =Screen.x
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,$hor ~Screen.x ~rect.x2 LTH2 JMP2?
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( incr ) ~Screen.y ++ =Screen.y
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,$ver ~Screen.y ~rect.y2 LTH2 JMP2?
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RTN
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@draw-picture ( x y width height color addr )
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( load ) DUP2 =Sprite.addr =pict.addr =pict.color =pict.height =pict.width DUP2 =Sprite.y =pict.y =pict.x
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$ver
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~pict.x =Sprite.x
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$hor
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( draw ) ~pict.color =Sprite.color
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( incr ) ~Sprite.x 8+ =Sprite.x
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( incr ) ~Sprite.addr 8+ =Sprite.addr
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,$hor ~Sprite.x ~pict.width ~pict.x ADD2 LTH2 JMP2?
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( incr ) ~Sprite.y 8+ =Sprite.y
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,$ver ~Sprite.y ~pict.height ~pict.y ADD2 LTH2 JMP2?
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RTN
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@draw-label ( x y color addr )
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( load ) =label.addr =label.color =Sprite.y =Sprite.x ~label.addr
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$loop
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( draw ) DUP2 LDR #00 SWP #0008 MUL2 ,font ADD2 =Sprite.addr ~label.color =Sprite.color
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( incr ) ++
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( incr ) ~Sprite.x 8+ =Sprite.x
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DUP2 LDR #00 NEQ ,$loop ROT JMP2?
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POP2
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RTN
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@draw-line ( x1 y1 x2 y2 )
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=color
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=b.y =b.x =a.y =a.x
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~b.x ~a.x SUB2 ABS2 =d.x
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~b.y ~a.y SUB2 ABS2 #0000 SWP2 SUB2 =d.y
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#ffff #00 ~a.x ~b.x LTS2 #0002 MUL2 ADD2 =s.x
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#ffff #00 ~a.y ~b.y LTS2 #0002 MUL2 ADD2 =s.y
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~d.x ~d.y ADD2 =err
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$loop
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~a.x =Screen.x ~a.y =Screen.y ~color =Screen.color
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,$end ~a.x ~b.x EQU2 ~a.y ~b.y EQU2 #0101 EQU2 JMP2?
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~err #0002 MUL2 =err2
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,$skipy ~err2 ~d.y LTS2 JMP2?
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~err ~d.y ADD2 =err
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~a.x ~s.x ADD2 =a.x
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$skipy
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,$skipx ~err2 ~d.x GTS2 JMP2?
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~err ~d.x ADD2 =err
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~a.y ~s.y ADD2 =a.y
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$skipx
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,$loop JMP2
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$end
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RTN
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@pict_small [
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ff80 8080 8080 8088 ffff fffc f8f9 f1f4
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ffff 0010 c721 2120 ffff 3f0f 0717 c343
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8888 8080 8080 8080 f0f1 f2f5 f2f1 f0f4
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1208 804c 9212 4c00 7303 0343 1b1b fbfb
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8080 8f83 8383 8393 f0f3 f1f0 e4c0 80ff
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00c7 c7c6 4606 00ff c3d3 c307 870f 3fff
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8f83 8383 8383 83ff fff7 fdff c0e2 f1ff
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7fef bfff 07af 5fff ffff ffff ffff ffff
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]
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@font ( spectrum-zx font )
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[
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0000 0000 0000 0000 0000 2400 7e3c 0000 0000 2400 3c42 0000 0000 6c7c 7c38 1000
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0010 387c 7c38 1000 0038 387c 6c10 3800 0010 387c 7c10 3800 0000 0018 1800 0000
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007e 4242 4242 7e00 0000 1824 2418 0000 0018 2442 4224 1800 001e 063a 4a48 3000
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0038 446c 107c 1000 000c 0808 0838 3800 003e 2222 2266 6600 0000 0822 0022 0800
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0000 1018 1c18 1000 0000 0818 3818 0800 0008 1c00 001c 0800 0028 2828 2800 2800
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003e 4a4a 3a0a 0a00 000c 3046 620c 3000 0000 0000 0000 ffff 0010 3800 3810 0038
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0008 1c2a 0808 0800 0008 0808 2a1c 0800 0000 0804 7e04 0800 0000 1020 7e20 1000
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0000 4040 7e00 0000 0000 0024 6624 0000 0000 1038 7c00 0000 0000 007c 3810 0000
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0000 0000 0000 0000 0008 0808 0800 0800 0014 1400 0000 0000 0024 7e24 247e 2400
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0008 1e28 1c0a 3c08 0042 0408 1020 4200 0030 4832 4c44 3a00 0008 1000 0000 0000
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0004 0808 0808 0400 0010 0808 0808 1000 0000 1408 3e08 1400 0000 0808 3e08 0800
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0000 0000 0008 0810 0000 0000 3c00 0000 0000 0000 0000 0800 0000 0204 0810 2000
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003c 464a 5262 3c00 0018 2808 0808 3e00 003c 4202 3c40 7e00 003c 421c 0242 3c00
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0008 1828 487e 0800 007e 407c 0242 3c00 003c 407c 4242 3c00 007e 0204 0810 1000
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003c 423c 4242 3c00 003c 4242 3e02 3c00 0000 0008 0000 0800 0000 0800 0008 0810
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0000 0810 2010 0800 0000 003e 003e 0000 0000 1008 0408 1000 003c 4202 0c00 0800
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003c 425a 5442 3c00 0018 2442 7e42 4200 007c 427c 4242 7c00 003c 4240 4042 3c00
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0078 4442 4244 7800 007e 407c 4040 7e00 003e 4040 7c40 4000 003c 4240 4e42 3c00
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0042 427e 4242 4200 003e 0808 0808 3e00 0002 0202 4242 3c00 0044 4870 4844 4200
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0040 4040 4040 7e00 0042 665a 4242 4200 0042 6252 4a46 4200 003c 4242 4242 3c00
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007c 4242 7c40 4000 003c 4242 524a 3c00 007c 4242 7c44 4200 003c 403c 0242 3c00
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00fe 1010 1010 1000 0042 4242 4242 3c00 0042 4242 4224 1800 0042 4242 5a66 4200
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0042 2418 1824 4200 0082 4428 1010 1000 007e 0408 1020 7e00 000c 0808 0808 0c00
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0040 2010 0804 0200 0018 0808 0808 1800 0008 1422 0000 0000 0000 0000 0000 7e00
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0008 0400 0000 0000 0000 1c02 1e22 1e00 0020 203c 2222 3c00 0000 1e20 2020 1e00
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0002 021e 2222 1e00 0000 1c22 3c20 1e00 000c 101c 1010 1000 0000 1c22 221e 021c
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0020 202c 3222 2200 0008 0018 0808 0400 0008 0008 0808 4830 0020 2428 3028 2400
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0010 1010 1010 0c00 0000 6854 5454 5400 0000 5864 4444 4400 0000 3844 4444 3800
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0000 7844 4478 4040 0000 3c44 443c 0406 0000 2c30 2020 2000 0000 3840 3804 7800
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0010 103c 1010 0c00 0000 4444 4444 3800 0000 4444 2828 1000 0000 4454 5454 2800
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0000 4428 1028 4400 0000 4444 443c 0438 0000 7c08 1020 7c00 000c 0810 1008 0c00
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0008 0808 0808 0800 0030 1008 0810 3000 0000 0032 4c00 0000 3c42 99a1 a199 423c
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]
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@text [ Label 20 Text 00 ] ( add characters to memory )
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|c000 @FRAME BRK
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|d000 @ERROR BRK
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|FF10 ;Screen { width 2 height 2 pad 4 x 2 y 2 color 1 }
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|FF20 ;Sprite { pad 8 x 2 y 2 addr 2 color 1 }
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|FFF0 .RESET .FRAME .ERROR ( vectors )
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|FFF8 [ 13fd 1ef3 1bf2 ] ( palette ) |