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bitmap.h
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bitmap.h
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/* bitmap.h: Bitmap routines
Copyright (c) 2007-2015 Stuart Brady
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
Philip: philip-fuse@shadowmagic.org.uk
Stuart: stuart.brady@gmail.com
*/
#ifndef FUSE_BITMAP_H
#define FUSE_BITMAP_H
static inline void bitmap_set(libspectrum_byte *b, const size_t n)
{
b[n / 8] |= (1 << (n % 8));
}
static inline void bitmap_reset(libspectrum_byte *b, const size_t n)
{
b[n / 8] &= ~(1 << (n % 8));
}
static inline int bitmap_test(const libspectrum_byte *b, const size_t n)
{
return b[n / 8] & (1 << (n % 8));
}
#endif // #ifndef FUSE_BITMAP_H