devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

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.

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

4
apps/plugins/rockboy/lcd.c
View file

@ -216,8 +216,8 @@ static void updatepatpix(void)
a = ((i<<4) | (j<<1));
for (k = 0; k < 8; k++)
{
c = vram[a] & (1<<k) ? 1 : 0;
c |= vram[a+1] & (1<<k) ? 2 : 0;
c = vram[a] & BIT_N(k) ? 1 : 0;
c |= vram[a+1] & BIT_N(k) ? 2 : 0;
patpix[i+1024][j][k] = c;
}
for (k = 0; k < 8; k++)