143 lines
5.4 KiB
Plaintext
143 lines
5.4 KiB
Plaintext
''********************************************
|
|
''* Added argc and argv parms to the start *
|
|
''* method, and extract the VGA pin from *
|
|
''* the second argv parameter. Check for *
|
|
''* key press in loops to terminate *
|
|
''* program. *
|
|
''* Copyright (c) 2012, Dave Hein *
|
|
''* See end of file for terms of use. *
|
|
''********************************************
|
|
''* VGA 512x384 2-Color Bitmap Driver v1.0 *
|
|
''* Author: Chip Gracey *
|
|
''* Copyright (c) 2006 Parallax, Inc. *
|
|
''* See end of file for terms of use. *
|
|
''********************************************
|
|
|
|
CON
|
|
|
|
_clkmode = xinput
|
|
_xinfreq = $4e495053 ' SPIN
|
|
|
|
tiles = vga#xtiles * vga#ytiles
|
|
tiles32 = tiles * 32
|
|
|
|
|
|
OBJ
|
|
|
|
vga : "vga_512x384_bitmap"
|
|
ser : "FullDuplexSerial"
|
|
spinix : "exit"
|
|
|
|
|
|
VAR
|
|
|
|
long sync, pixels[tiles32]
|
|
word colors[tiles]
|
|
|
|
|
|
PUB start(argc, argv) | h, i, j, k, x, y, ptr
|
|
|
|
'set the linefeed flag
|
|
set_linefeed(argc, argv)
|
|
|
|
'start serial port
|
|
ser.start(31, 30, 0, 115_200)
|
|
|
|
'check for two parms
|
|
if argc <> 2
|
|
usage
|
|
|
|
' Check if arg is c3 or C3
|
|
ptr := long[argv][1]
|
|
if strcomp(ptr, string("c3")) or strcomp(ptr, string("C3"))
|
|
j := 16
|
|
DIRA |= $8000
|
|
' else, check if it's 0, 8, 16 or 24
|
|
else
|
|
j := atol(ptr)
|
|
if j <> 0 and j <> 8 and j <> 16 and j <> 24
|
|
usage
|
|
|
|
'start vga
|
|
vga.start(j, @colors, @pixels, @sync)
|
|
|
|
'print message to serial port
|
|
ser.str(string("Hit any key to terminate program"))
|
|
putnewline
|
|
|
|
'init colors to cyan on blue
|
|
repeat i from 0 to tiles - 1
|
|
colors[i] := $2804
|
|
|
|
'draw some lines
|
|
repeat y from 1 to 8
|
|
repeat x from 0 to 511
|
|
plot(x, x/y)
|
|
|
|
'wait ten seconds
|
|
repeat 100
|
|
if ser.rxcheck <> -1
|
|
spinix.exit(0)
|
|
waitcnt(clkfreq / 10 + cnt)
|
|
|
|
'randomize the colors and pixels
|
|
repeat
|
|
if ser.rxcheck <> -1
|
|
spinix.exit(0)
|
|
colors[||?h // tiles] := ?i
|
|
repeat 100
|
|
pixels[||?j // tiles32] := k?
|
|
|
|
|
|
|
|
PRI plot(x,y) | i
|
|
|
|
if x => 0 and x < 512 and y => 0 and y < 384
|
|
pixels[y << 4 + x >> 5] |= |< x
|
|
|
|
PRI usage
|
|
ser.str(string("usage: vga512 parm"))
|
|
putnewline
|
|
ser.str(string(" parm is either 'c3' for the C3 board or"))
|
|
putnewline
|
|
ser.str(string(" a starting pin number of 0, 8, 16 or 24"))
|
|
putnewline
|
|
waitcnt(cnt + clkfreq/10)
|
|
spinix.exit(1)
|
|
|
|
PRI set_linefeed(argc, argv) | ptr
|
|
ptr := long[argv][argc-1]
|
|
ptr += strsize(ptr) + 1
|
|
ptr := ((ptr + 3) >> 2) << 2
|
|
linefeed := long[ptr] & 1
|
|
|
|
PRI putnewline
|
|
ser.tx(13)
|
|
if linefeed
|
|
ser.tx(10)
|
|
|
|
PRI atol(ptr)
|
|
repeat while byte[ptr]
|
|
result := (result * 10) + byte[ptr++] - "0"
|
|
|
|
DAT
|
|
linefeed long 0
|
|
|
|
{{
|
|
┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
|
|
│ 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. │
|
|
└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
|
|
}}
|