263 lines
8.4 KiB
Plaintext
263 lines
8.4 KiB
Plaintext
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{
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}
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CON
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_CLKMODE = XTAL1 + PLL16X
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_XINFREQ = 5_000_000
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_stack = ($3000 + $3000 + 100) >> 2
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x_tiles = 16
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y_tiles = 12
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paramcount = 14
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bitmap_base = $2000
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display_base = $5000
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max_x = x_tiles * 16
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max_y = y_tiles * 16
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s_obj = 15 'scale
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d_obj = 64 'durchmesser
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r_obj = d_obj/2 'radius
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rotvar = 14 'rotationsvarianz
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VAR
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long tv_status '0/1/2 = off/visible/invisible read-only
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long tv_enable '0/? = off/on write-only
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long tv_pins '%ppmmm = pins write-only
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long tv_mode '%ccinp = chroma,interlace,ntsc/pal,swap write-only
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long tv_screen 'pointer to screen (words) write-only
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long tv_colors 'pointer to colors (longs) write-only
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long tv_hc 'horizontal cells write-only
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long tv_vc 'vertical cells write-only
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long tv_hx 'horizontal cell expansion write-only
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long tv_vx 'vertical cell expansion write-only
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long tv_ho 'horizontal offset write-only
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long tv_vo 'vertical offset write-only
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long tv_broadcast 'broadcast frequency (Hz) write-only
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long tv_auralcog 'aural fm cog write-only
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word screen[x_tiles * y_tiles] 'tilemap
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long colors[64] 'farbregister
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OBJ
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tv : "bel-tv" 'located in default Library
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gr : "bel-graphics" 'located in default Library
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mouse : "bel-mouse"
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PUB main | x,y,rot,dx,dy,j,i,mousex,mousey,rflag
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init_subsystem
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x := max_x/2
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y := max_y/2
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rot := 0
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dx := 1
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dy := 1
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repeat
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gr.clear
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' koordinatenkreuz zeichnen
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gr.colorwidth(2, 0)
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gr.plot(x,192)
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gr.line(x,0)
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gr.plot(0,y)
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gr.line(255,y)
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'cursor zeichnen
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gr.colorwidth(0, 15)
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gr.plot(x,y)
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gr.colorwidth(2, 1)
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gr.plot(x-3,y-3)
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gr.line(x,y)
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gr.line(x+3,y-3)
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x += mouse.delta_x
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y += mouse.delta_y
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rot += mouse.delta_z * 500
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rflag := mouse.buttons
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if rflag == 1
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rot += 50
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' koordinaten anzeigen
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j := x
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repeat i from 3 to 0
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ifnot (j//10) < 0
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kx[ i ] := ( j // 10 ) + "0"
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j := j / 10
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j := y
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repeat i from 3 to 0
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ifnot (j//10) < 0
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ky[ i ] := ( j // 10 ) + "0"
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j := j / 10
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gr.colorwidth(2,0)
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gr.text(5,5,@kx )
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gr.copy(display_base)
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ifexit
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dat 'koordinatenstring
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kx byte "0000"
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byte ":"
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ky byte "0000", 0
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PRI ifexit
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if mouse.buttons == 2
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reboot
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PRI init_subsystem | i,dx,dy
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'tv-treiber starten
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longmove(@tv_status, @tvparams, paramcount)
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tv_screen := @screen
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tv_colors := @colors
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tv.start(@tv_status)
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' farbtabelle setzen
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' PPPP_M_LLL
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' ---+ | --+
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' | | +- 0..1 sync
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' | | 2..6 helligkeit b/w
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' | | 2..6 helligkeit col
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' | | 7 -
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' | +----- 0 - b/w
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' | 1 - col
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' +------- ntsc-palette (blau...grün..rot)
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'
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' b/w - 6 helligkeitsstufen 6
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' col - 16color x 5 luma 64
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' hsat - 16 highsat-farben 16
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'
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' $aa_bb_cc_dd
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' $aa - color 3
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' $bb - color 2
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' $cc - color 1
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' $dd - color 0 (hintergrund)
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repeat i from 0 to 63
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' colors[i] := %1010_1_101__0000_0_010__0010_1_111__0000_0_111
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' colors[i] := %1010_1_101__0000_0_010__0010_1_111__0011_0_111
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' colors[i] := c_hsat(3,0)+c_hsat(2,2)+c_hsat(1,6)+c_hsat(0,8) 'gesättigte farben
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' colors[i] := c_bw(3,1)+c_bw(2,2)+c_bw(1,3)+c_bw(0,4) 'graustufen
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' colors[i] := c_col(3,0,2)+c_col(2,3,2)+c_col(1,6,2)+c_col(0,9,2)
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colors[i] := $00001010 * (i<<1+4) & $F + $0D060D02
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'init tile screen
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repeat dx from 0 to tv_hc - 1
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repeat dy from 0 to tv_vc - 1
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screen[dy * tv_hc + dx] := display_base >> 6 + dy + dx * tv_vc + ((dy & $3F) << 10)
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'start and setup graphics
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gr.start
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gr.setup(tv_hc, tv_vc, 0, 0, bitmap_base)
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'mouse
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mouse.start(19, 18)
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PRI c_hsat(bnr,cnr):col 'tool: erzeugt einen gesättigten farbwert
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' bnr : bytenummer
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' cnr : 0..15 farbnummer
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col := (%0000_1_000 + (cnr<<4))<<(bnr*8)
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PRI c_bw(bnr,cnr):col 'tool: erzeugt einen monochromwert
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' bnr : bytenummer
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' cnr : 0..5 graustufen
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col := (%0000_0_000 + cnr+2)<<(bnr*8)
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PRI c_col(bnr,chroma,lumi):col 'tool: erzeugt einen farbwert
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' bnr : bytenummer
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' croma : 0..15 chroma
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' lumi : 0..5 luminanz
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col := (%0000_1_000+(lumi+2)+(chroma<<4))<<(bnr*8)
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PRI cos(angle) : x
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x := sin(angle + $800)
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PRI sin(angle) : y
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'' Get sine of angle (0-8191)
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y := angle << 1 & $FFE ' address
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if angle & $800
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y := word[$F000 - y]
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else
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y := word[$E000 + y]
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if angle & $1000
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-y
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DAT 'tv-parameter
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tvparams long 0 'status
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long 1 'enable
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long %010_0101 'pins New Board
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long %0000 'mode
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long 0 'screen
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long 0 'colors
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long x_tiles 'hc - horizontale tiles
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long y_tiles 'vc - vertikale tiles
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long 10 'hx
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long 1 'vx
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long 0 'ho
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long 0 'vo
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long 60_000_000 '_xinfreq<<4 'broadcast
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long 0 'auralcog
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DAT 'vektorobjekte
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vecdef1 word $4000+$2000/3*0 'triangle
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word 50
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word $8000+$2000/3*1+1
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word 50
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word $8000+$2000/3*2-1
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word 50
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word $8000+$2000/3*0
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word 50
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word 0
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vecdef2 word $4000+$2000/12*0 'star
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word 50
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word $8000+$2000/12*1
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word 20
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word $8000+$2000/12*2
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word 50
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word $8000+$2000/12*3
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word 20
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word $8000+$2000/12*4
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word 50
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word $8000+$2000/12*5
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word 20
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word $8000+$2000/12*6
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word 50
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word $8000+$2000/12*7
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word 20
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word $8000+$2000/12*8
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word 50
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word $8000+$2000/12*9
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word 20
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word $8000+$2000/12*10
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word 50
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word $8000+$2000/12*11
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word 20
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word $8000+$2000/12*0
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word 50
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word 0
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vecdef3 word $4000+$2000/4*0 'box
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word 50
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word $8000+$2000/4*1
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word 30
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word $8000+$2000/4*2
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word 50
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word $8000+$2000/4*3
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word 30
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word $8000+$2000/4*0
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word 50
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word 0
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