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arduinolibs/gen/genflip.c
2012-05-29 13:34:21 +10:00

49 lines
1.9 KiB
C

/*
* Copyright (C) 2012 Southern Storm Software, Pty Ltd.
*
* 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.
*/
#include <stdio.h>
int main(int argc, char *argv[])
{
int value;
printf("static const uint8_t flipBits[256] PROGMEM = {\n");
for (value = 0; value < 256; ++value) {
int flipped =
((value & 0x01) << 7) | ((value & 0x02) << 5) |
((value & 0x04) << 3) | ((value & 0x08) << 1) |
((value & 0x10) >> 1) | ((value & 0x20) >> 3) |
((value & 0x40) >> 5) | ((value & 0x80) >> 7);
if ((value % 12) == 0)
printf(" ");
else
printf(" ");
if (value != 255)
printf("0x%02X,", flipped);
else
printf("0x%02X", flipped);
if ((value % 12) == 11)
printf("\n");
}
printf("\n};\n");
return 0;
}