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

1 files changed, 1 insertions, 1 deletions

diff --git a/apps/plugins/rockboy/sound.c b/apps/plugins/rockboy/sound.c
index 041b7831d3..6efc01b11c 100644
--- a/apps/plugins/rockboy/sound.c
+++ b/apps/plugins/rockboy/sound.c
@@ -182,7 +182,7 @@ static void gbSoundChannel1(int *r, int *l)
                 int newfreq = 0;
                 if(S1.swsteps)
                 {
-                    newfreq = freq + updown * freq / (1 << S1.swsteps);
+                    newfreq = freq + updown * freq / BIT_N(S1.swsteps);
                     if(newfreq == freq)
                         newfreq = 0;
                 }