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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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3
apps/misc.h
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@ -24,6 +24,7 @@
#include <stdbool.h>
#include <inttypes.h>
#include "config.h"
#include "system.h"
/* Format a large-range value for output, using the appropriate unit so that
* the displayed value is in the range 1 <= display < 1000 (1024 for "binary"
@ -103,7 +104,7 @@ char *strip_extension(char* buffer, int buffer_size, const char *filename);
* - position: 0-based number of the value
* - valid_vals: value after the call to 'parse_list'
*/
#define LIST_VALUE_PARSED(setvals, position) ((setvals)&(1<<(position)))
#define LIST_VALUE_PARSED(setvals, position) ((setvals) & BIT_N(position))
const char* parse_list(const char *fmt, uint32_t *set_vals,
const char sep, const char* str, ...);