diff options
| author | Jens Arnold <amiconn@rockbox.org> | 2009-06-07 21:27:05 +0000 |
|---|---|---|
| committer | Jens Arnold <amiconn@rockbox.org> | 2009-06-07 21:27:05 +0000 |
| commit | 1d6df54df27cb41c02226678a2c8f9feddd1a1e0 (patch) | |
| tree | 5fdc6dd98ac0208f5c3351b062063af6914cbefb /apps/plugins/sudoku/generator.c | |
| parent | c3182ec333982e961d3babfbdb1125fd5bac7fb8 (diff) | |
Convert a number of places in core and plugins to use the BIT_N() macro instead of 1<<n. Speeds up things on SH1, and also reduces core binsize. Most notable speedups: 1 bit lcd driver: drawpixel +20%, drawline + 27%, hline +5%; jpeg viewer: +8% for 1/8 scaling. Other targets are unaffected.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21205 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins/sudoku/generator.c')
| -rw-r--r-- | apps/plugins/sudoku/generator.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/apps/plugins/sudoku/generator.c b/apps/plugins/sudoku/generator.c index 3d37bde22a..59bb9066cc 100644 --- a/apps/plugins/sudoku/generator.c +++ b/apps/plugins/sudoku/generator.c @@ -54,7 +54,7 @@ #define STATE_MASK 0x0000ff80 #define STATE_SHIFT (7-1) /* digits 1..9 */ -#define DIGIT_STATE(digit) (1<<(STATE_SHIFT+(digit))) +#define DIGIT_STATE(digit) BIT_N(STATE_SHIFT+(digit)) #define DIGIT_MASK 0x000f0000 #define DIGIT_SHIFT 16 @@ -266,7 +266,7 @@ numset( int mask ) { int i, n = 0; for( i = STATE_SHIFT + 1 ; i <= STATE_SHIFT + 9 ; ++i ) - if( mask & (1<<i) ) + if( mask & BIT_N(i) ) ++n; else ++counts[ i - STATE_SHIFT - 1 ]; |