From: Keith Packard <keithp@keithp.com>
Date: Wed, 28 Mar 2012 01:19:05 +0000 (-0700)
Subject: altos: Optimize ao_freq_to_set a bit
X-Git-Tag: 1.0.9.4~47
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=7dd1d62676c1e605fe69a4c0acfe7638c6b79aa5;hp=d77a4ea206d627635159f35c76c744687d4e633b;p=fw%2Faltos

altos: Optimize ao_freq_to_set a bit

Reduces size from 327 bytes to 287 bytes

Signed-off-by: Keith Packard <keithp@keithp.com>
---

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)