''*************************************** ''* TV Text 40x13 v1.0 * ''* Author: Chip Gracey * ''* Copyright (c) 2006 Parallax, Inc. * ''* See end of file for terms of use. * ''*************************************** CON cols = 40 rows = 13 screensize = cols * rows lastrow = screensize - cols tv_count = 14 VAR long col, row, color, flag word screen[screensize] long colors[8 * 2] long tv_status '0/1/2 = off/invisible/visible read-only (14 longs) long tv_enable '0/non-0 = off/on write-only long tv_pins '%pppmmmm = pin group, pin group mode write-only long tv_mode '%tccip = tile,chroma,interlace,ntsc/pal write-only long tv_screen 'pointer to screen (words) write-only long tv_colors 'pointer to colors (longs) write-only long tv_ht 'horizontal tiles write-only long tv_vt 'vertical tiles write-only long tv_hx 'horizontal tile expansion write-only long tv_vx 'vertical tile 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 OBJ tv : "tv" PUB start(basepin) : okay '' Start terminal - starts a cog '' returns false if no cog available setcolors(@palette) out(0) longmove(@tv_status, @tv_params, tv_count) tv_pins := (basepin & $38) << 1 | (basepin & 4 == 4) & %0101 tv_screen := @screen tv_colors := @colors okay := tv.start(@tv_status) PUB stop '' Stop terminal - frees a cog tv.stop PUB str(stringptr) '' Print a zero-terminated string repeat strsize(stringptr) out(byte[stringptr++]) PUB dec(value) | i '' Print a decimal number if value < 0 -value out("-") i := 1_000_000_000 repeat 10 if value => i out(value / i + "0") value //= i result~~ elseif result or i == 1 out("0") i /= 10 PUB hex(value, digits) '' Print a hexadecimal number value <<= (8 - digits) << 2 repeat digits out(lookupz((value <-= 4) & $F : "0".."9", "A".."F")) PUB bin(value, digits) '' Print a binary number value <<= 32 - digits repeat digits out((value <-= 1) & 1 + "0") PUB out(c) | i, k '' Output a character '' '' $00 = clear screen '' $01 = home '' $08 = backspace '' $09 = tab (8 spaces per) '' $0A = set X position (X follows) '' $0B = set Y position (Y follows) '' $0C = set color (color follows) '' $0D = return '' others = printable characters case flag $00: case c $00: wordfill(@screen, $220, screensize) col := row := 0 $01: col := row := 0 $08: if col col-- $09: repeat print(" ") while col & 7 $0A..$0C: flag := c return $0D: newline other: print(c) $0A: col := c // cols $0B: row := c // rows $0C: color := c & 7 flag := 0 PUB setcolors(colorptr) | i, fore, back '' Override default color palette '' colorptr must point to a list of up to 8 colors '' arranged as follows: '' '' fore back '' ------------ '' palette byte color, color 'color 0 '' byte color, color 'color 1 '' byte color, color 'color 2 '' ... repeat i from 0 to 7 fore := byte[colorptr][i << 1] back := byte[colorptr][i << 1 + 1] colors[i << 1] := fore << 24 + back << 16 + fore << 8 + back colors[i << 1 + 1] := fore << 24 + fore << 16 + back << 8 + back PRI print(c) screen[row * cols + col] := (color << 1 + c & 1) << 10 + $200 + c & $FE if ++col == cols newline PRI newline | i col := 0 if ++row == rows row-- wordmove(@screen, @screen[cols], lastrow) 'scroll lines wordfill(@screen[lastrow], $220, cols) 'clear new line DAT tv_params long 0 'status long 1 'enable long 0 'pins long %10010 'mode long 0 'screen long 0 'colors long cols 'hc long rows 'vc long 4 'hx long 1 'vx long 0 'ho long 0 'vo long 0 'broadcast long 0 'auralcog ' fore back ' color color palette byte $07, $0A '0 white / dark blue byte $07, $BB '1 white / red byte $9E, $9B '2 yellow / brown byte $04, $07 '3 grey / white byte $3D, $3B '4 cyan / dark cyan byte $6B, $6E '5 green / gray-green byte $BB, $CE '6 red / pink byte $3C, $0A '7 cyan / blue {{ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ TERMS OF USE: MIT License │ ├──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤ │Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation │ │files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, │ │modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software│ │is furnished to do so, subject to the following conditions: │ │ │ │The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.│ │ │ │THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE │ │WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR │ │COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, │ │ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │ └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘ }}