TriOS-alt/demo/graphics/demo-2.spin

207 lines
15 KiB
Plaintext
Raw Normal View History

2010-11-26 23:58:06 +01:00
<EFBFBD><EFBFBD>{
}
CON
_CLKMODE = XTAL1 + PLL16X
_XINFREQ = 5_000_000
_stack = ($3000 + $3000 + 100) >> 2
x_tiles = 16
y_tiles = 12
paramcount = 14
bitmap_base = $2000
display_base = $5000
VAR
long tv_status '0/1/2 = off/visible/invisible read-only
long tv_enable '0/? = off/on write-only
long tv_pins '%ppmmm = pins write-only
long tv_mode '%ccinp = chroma,interlace,ntsc/pal,swap write-only
long tv_screen 'pointer to screen (words) write-only
long tv_colors 'pointer to colors (longs) write-only
long tv_hc 'horizontal cells write-only
long tv_vc 'vertical cells write-only
long tv_hx 'horizontal cell expansion write-only
long tv_vx 'vertical cell expansion write-only
long tv_ho 'horizontal offset write-only
long tv_vo 'vertical offset write-only
long tv_broadcast 'broadcast frequency (Hz) write-only
long tv_auralcog 'aural fm cog write-only
word screen[x_tiles * y_tiles] 'tilemap
long colors[64] 'farbregister
OBJ
tv : "tv" 'located in default Library
gr : "graphics" 'located in default Library
PUB main | x,y,j
init_subsystem
repeat
gr.clear
gr.width(14)
gr.color(1)
repeat x from 0 to x_tiles-1
repeat y from 0 to y_tiles-1
gr.plot(x*16+8,y*16+8)
gr.copy(display_base)
PRI init_subsystem | i,dx,dy
'tv-treiber starten
longmove(@tv_status, @tvparams, paramcount)
tv_screen := @screen
tv_colors := @colors
tv.start(@tv_status)
' farbtabelle setzen
' PPPP_M_LLL
' ---+ | --+
' | | +- 0..1 sync
' | | 2..6 helligkeit b/w
' | | 2..6 helligkeit col
' | | 7 -
' | +----- 0 - b/w
' | 1 - col
' +------- ntsc-palette (blau...gr<00>n..rot)
'
' b/w - 6 helligkeitsstufen 6
' col - 16color x 5 luma 64
' hsat - 16 highsat-farben 16
'
' $aa_bb_cc_dd
' $aa - color 3
' $bb - color 2
' $cc - color 1
' $dd - color 0 (hintergrund)
repeat i from 0 to 63
' colors[i] := %1010_1_101__0000_0_010__0010_1_111__0000_0_111
' colors[i] := %1010_1_101__0000_0_010__0010_1_111__0011_0_111
' colors[i] := c_hsat(3,0)+c_hsat(2,2)+c_hsat(1,6)+c_hsat(0,8) 'ges<00>ttigte farben
' colors[i] := c_bw(3,1)+c_bw(2,2)+c_bw(1,3)+c_bw(0,4) 'graustufen
' colors[i] := c_col(3,0,2)+c_col(2,3,2)+c_col(1,6,2)+c_col(0,9,2)
colors[i] := $00001010 * (i<<1+4) & $F + $0D060D02
'init tile screen
repeat dx from 0 to tv_hc - 1
repeat dy from 0 to tv_vc - 1
screen[dy * tv_hc + dx] := display_base >> 6 + dy + dx * tv_vc + ((dy & $3F) << 10)
{
i := 0
repeat dy from 0 to tv_vc - 1
repeat dx from 0 to tv_hc - 1
screen[i++] := display_base >> 6 + dy + dx * tv_vc + (dy << 10)
}
'start and setup graphics
gr.start
gr.setup(tv_hc, tv_vc, 0, 0, bitmap_base)
PRI c_hsat(bnr,cnr):col 'tool: erzeugt einen ges<00>ttigten farbwert
' bnr : bytenummer
' cnr : 0..15 farbnummer
col := (%0000_1_000 + (cnr<<4))<<(bnr*8)
PRI c_bw(bnr,cnr):col 'tool: erzeugt einen monochromwert
' bnr : bytenummer
' cnr : 0..5 graustufen
col := (%0000_0_000 + cnr+2)<<(bnr*8)
PRI c_col(bnr,chroma,lumi):col 'tool: erzeugt einen farbwert
' bnr : bytenummer
' croma : 0..15 chroma
' lumi : 0..5 luminanz
col := (%0000_1_000+(lumi+2)+(chroma<<4))<<(bnr*8)
PRI cos(angle) : x
x := sin(angle + $800)
PRI sin(angle) : y
'' Get sine of angle (0-8191)
y := angle << 1 & $FFE ' address
if angle & $800
y := word[$F000 - y]
else
y := word[$E000 + y]
if angle & $1000
-y
DAT 'tv-parameter
tvparams long 0 'status
long 1 'enable
long %010_0101 'pins New Board
long %0000 'mode
long 0 'screen
long 0 'colors
long x_tiles 'hc - horizontale tiles
long y_tiles 'vc - vertikale tiles
long 10 'hx
long 1 'vx
long 0 'ho
long 0 'vo
long 60_000_000 '_xinfreq<<4 'broadcast
long 0 'auralcog
DAT 'vektorobjekte
vecdef1 word $4000+$2000/3*0 'triangle
word 50
word $8000+$2000/3*1+1
word 50
word $8000+$2000/3*2-1
word 50
word $8000+$2000/3*0
word 50
word 0
vecdef2 word $4000+$2000/12*0 'star
word 50
word $8000+$2000/12*1
word 20
word $8000+$2000/12*2
word 50
word $8000+$2000/12*3
word 20
word $8000+$2000/12*4
word 50
word $8000+$2000/12*5
word 20
word $8000+$2000/12*6
word 50
word $8000+$2000/12*7
word 20
word $8000+$2000/12*8
word 50
word $8000+$2000/12*9
word 20
word $8000+$2000/12*10
word 50
word $8000+$2000/12*11
word 20
word $8000+$2000/12*0
word 50
word 0
vecdef3 word $4000+$2000/4*0 'box
word 50
word $8000+$2000/4*1
word 30
word $8000+$2000/4*2
word 50
word $8000+$2000/4*3
word 30
word $8000+$2000/4*0
word 50
word 0