diff options
| author | Keith Packard <keithp@keithp.com> | 2012-03-27 18:19:05 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-03-27 18:19:05 -0700 |
| commit | 7dd1d62676c1e605fe69a4c0acfe7638c6b79aa5 (patch) | |
| tree | 5f42dc087107cfa07b8fd32fb1df89ad2117ed35 | |
| parent | d77a4ea206d627635159f35c76c744687d4e633b (diff) | |
altos: Optimize ao_freq_to_set a bit
Reduces size from 327 bytes to 287 bytes
Signed-off-by: Keith Packard <keithp@keithp.com>
| -rw-r--r-- | src/core/ao_freq.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/src/core/ao_freq.c b/src/core/ao_freq.c index 13bcb383..67b0b037 100644 --- a/src/core/ao_freq.c +++ b/src/core/ao_freq.c @@ -30,20 +30,18 @@ int32_t ao_freq_to_set(int32_t freq, int32_t cal) { uint8_t neg = 0; __pdata int32_t error = -434550 / 2; - freq -= 434550; - if (freq < 0) { + if ((freq -= 434550) < 0) { neg = 1; freq = -freq; } for (;;) { - if (freq == 0 && error <= 0) - break; if (error > 0) { error -= 434550; set++; } else { error += cal; - freq--; + if (--freq < 0) + break; } } if (neg) |