From 3126b45da6067816282fdbdd2c50f9485e3d2bb7 Mon Sep 17 00:00:00 2001 From: "bernard.xiong@gmail.com" Date: Thu, 9 Jun 2011 14:13:38 +0000 Subject: [PATCH] Remove divide instructions. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1477 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- src/ipc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/ipc.c b/src/ipc.c index 664237ef4..cc09d8cd3 100644 --- a/src/ipc.c +++ b/src/ipc.c @@ -1398,7 +1398,7 @@ rt_err_t rt_mb_send_wait (rt_mailbox_t mb, rt_uint32_t value, rt_int32_t timeout mb->msg_pool[mb->in_offset] = value; /* increase input offset */ ++ mb->in_offset; - mb->in_offset %= mb->size; + if (mb->in_offset > mb->size) mb->in_offset = 0; /* increase message entry */ mb->entry ++; @@ -1529,7 +1529,7 @@ rt_err_t rt_mb_recv (rt_mailbox_t mb, rt_uint32_t* value, rt_int32_t timeout) /* increase output offset */ ++mb->out_offset; - mb->out_offset %= mb->size; + if (mb->out_offset > mb->size) mb->out_offset = 0; /* decrease message entry */ mb->entry --; -- GitLab