Vga_demo??
Graham Stabler
Posts: 2,507
I was just given a little 10.5" VGA monitor so thought would try it out. VGA_text_demo works fine but VGA_DEMO does not. I have tried that program before and had no problem, perhaps its just the monitor? Looking through the code however there seems to be lines commented out as if someone has been playing with it, and that is a freshly downloaded version.
Any ideas?
Graham
Any ideas?
Graham
Comments
*Peter*
''***************************** ''* VGA Terminal 40x15 v1.0 * ''* (C) 2004 Parallax, Inc. * ''***************************** CON _clkmode = xtal1+pll16x _clkfreq = 80_000_000 vga_params = 21 cols = 32 rows = 16 screensize = cols * rows VAR long vga_status 'status: off/visible/invisible read-only (21 contiguous longs) long vga_enable 'enable: off/on write-only long vga_pins 'pins: byte(2),topbit(3) write-only long vga_mode 'mode: interlace,hpol,vpol write-only long vga_videobase 'video base @word write-only long vga_colorbase 'color base @long write-only long vga_hc 'horizontal cells write-only long vga_vc 'vertical cells write-only long vga_hx 'horizontal cell expansion write-only long vga_vx 'vertical cell expansion write-only long vga_ho 'horizontal offset write-only long vga_vo 'vertical offset write-only long vga_hd 'horizontal display pixels write-only long vga_hf 'horizontal front-porch pixels write-only long vga_hs 'horizontal sync pixels write-only long vga_hb 'horizontal back-porch pixels write-only long vga_vd 'vertical display lines write-only long vga_vf 'vertical front-porch lines write-only long vga_vs 'vertical sync lines write-only long vga_vb 'vertical back-porch lines write-only long vga_rate 'pixel rate (Hz) write-only word screen[noparse][[/noparse]screensize] long col, row, color long boxcolor,ptr long stack[noparse][[/noparse]100] OBJ vga : "vga" pub launch cognew(begin, @stack) PUB begin: I start(%010111) print($112) repeat i from 0 to $FF 'print(i) print(altscreen[i]) 'return boxcolor := $10 box(25,5,4,2) col := 26 row := 6 print($114) print("M") print("e") print("o") print("w") boxcolor := $11 box(15,5,4,2) col := 16 row := 6 print($115) print("W") print("o") print("o") print("f") boxcolor := $12 box(5,5,4,2) col := 6 row := 6 print($116) print("W") print("o") print("o") print("f") boxcolor := $14 ptr := 8 * cols + 6 boxchr($D) boxcolor := $13 box(15,10,4,2) col := 16 row := 11 print($117) print("E") print("X") print("I") print("T") repeat i := cnt waitcnt(i += 22500000) spcl := $30101020 waitcnt(i += 22500000) spcl := $10301020 '' Start terminal - starts a cog '' returns false if no cog available PUB start(pins) print($100) longmove(@vga_status, @vgaparams, vga_params) vga_pins := pins vga_videobase := @screen vga_colorbase := @vgacolors result := vga.start(@vga_status) '' Stop terminal - frees a cog PUB stop vga.stop '' Draw a box PUB box(left,top,width,height) | x, y, i ptr := top * cols + left boxchr($0) repeat i from 1 to width boxchr($C) boxchr($8) repeat i from 1 to height ptr := (top + i) * cols + left boxchr($A) ptr += width boxchr($B) ptr := (top + height + 1) * cols + left boxchr($1) repeat i from 1 to width boxchr($D) boxchr($9) PRI boxchr(c): i screen[noparse][[/noparse]ptr++] := boxcolor << 10 + $200 + c '' Print a character '' '' $00..$FF = character '' $100 = clear screen '' $108 = backspace '' $10D = new line ''$110..$11F = select color PUB print(c) | i, k case c $00..$FF: 'character? k := color << 1 + c & 1 i := k << 10 + $200 + c & $FE screen[noparse][[/noparse]row * cols + col] := i screen[noparse][[/noparse](row + 1) * cols + col] := i | 1 if ++col == cols newline $100: 'clear screen? wordfill(@screen, $200, screensize) col := row := 0 $108: 'backspace? if col col-- $10D: 'return? newline $110..$11F: 'select color? color := c & $F ' New line PRI newline : i col := 0 if (row += 2) == rows row -= 2 'scroll lines repeat i from 0 to rows-3 ' wordmove(@screen[noparse][[/noparse]i*cols], @screen[noparse][[/noparse](i+2)*cols], cols) 'clear new line ' wordfill(@screen[noparse][[/noparse](rows-2)*cols], $200, cols<<1) ' Data DAT vgaparams long 0 'status long 1 'enable long %010_111 'pins long %011 'mode long 0 'videobase long 0 'colorbase long cols 'hc long rows 'vc long 1 'hx long 1 'vx long 0 'ho long 0 'vo long 512 'hd long 16 'hf long 96 'hs long 48 'hb long 380 'vd long 11 'vf long 2 'vs long 31 'vb long 20_000_000 'rate vgacolors long long $C000C000 'red long $C0C00000 long $08A808A8 'green long $0808A8A8 long $50005000 'blue long $50500000 long $FC00FC00 'white long $FCFC0000 long $FF80FF80 'red/white long $FFFF8080 long $FF20FF20 'green/white long $FFFF2020 long $FF28FF28 'cyan/white long $FFFF2828 long $00A800A8 'grey/black long $0000A8A8 long $C0408080 'redbox spcl long $30100020 'greenbox long $3C142828 'cyanbox long $FC54A8A8 'greybox long $3C14FF28 'cyanbox+underscore long 0 altscreen byte $15,$6E,$20,$14,$20,$B1,$6D,$16,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$20,$5F,$5F,$5F,$5F,$5F,$20 byte $20,$81,$82,$86,$87,$8B,$80,$8b,$80,$8B,$20,$20,$AF,$BD,$BE,$9B,$7F,$9B,$A6,$A8,$AA,$20,$20,$17,$20,$20,$53,$54,$41,$52,$54,$20 byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$17,$20,$20,$20,$20,$20,$AC,$20,$AC,$20,$20,$20,$20,$1D,$1E,$20,$20,$20,$20,$20,$20,$20,$20 byte $20,$20,$42,$49,$41,$53,$20,$A0,$1A,$1B,$20,$20,$20,$20,$20,$18,$20,$18,$20,$20,$20,$20,$20,$91,$20,$23,$24,$38,$30,$30,$30,$20 byte $3A,$3D,$20,$20,$20,$20,$20,$20,$20,$99,$BB,$20,$56,$62,$20,$20,$20,$20,$20,$20,$20,$20,$20,$BC,$20,$23,$25,$31,$30,$30,$31,$20 byte $20,$50,$30,$20,$BA,$BB,$90,$94,$20,$B6,$20,$31,$30,$30,$6B,$13,$20,$17,$20,$20,$20,$20,$20,$18,$20,$70,$5B,$69,$5D,$20,$20,$20 byte $20,$20,$20,$20,$20,$20,$20,$20,$20,$18,$20,$20,$20,$20,$20,$20,$AB,$AC,$AD,$31,$30,$B5,$46,$20,$20,$20,$20,$20,$20,$20,$20,$20 byte $12,$10,$13,$41,$2F,$44,$20,$20,$20,$20,$58,$B2,$2D,$20,$31,$20,$20,$18,$20,$20,$20,$20,$20,$20,$63,$61,$74,$5F,$64,$6F,$70,$65 [/i]I don't think it would even load without vga.spin
Graham
I think you have the same problem I have (8 inch, 640x480 only VGA).
The program published above give me a error msg "Over Range".
This have to do with the fact that the program expects a resolution setting above 680x480.
I have seen some prgrams that allow you to change resolutions.
Look at this[noparse]:http:[/noparse]//forums.parallax.com/forums/default.aspx?f=25&m=133054
Some people write for basic VGA some for higher res.
I have seen programs that give you a choice of select the resolution mode.