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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.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21205 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2009-06-07 21:27:05 +00:00
parent c3182ec333
commit 1d6df54df2
24 changed files with 88 additions and 70 deletions
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2
apps/plugins/lib/grey_core.c
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@ -860,7 +860,7 @@ static void grey_screendump_hook(int fd)
+ _GREY_MULUQ(_grey_info.width, gy & ~_GREY_BMASK);
#if LCD_DEPTH == 1
mask = 1 << (y & 7);
mask = BIT_N(y & 7);
src = rb->lcd_framebuffer + _GREY_MULUQ(LCD_WIDTH, y >> 3);
do