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Shave off an instruction by use of conditionals.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7896 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thom Johansen 2005-11-15 16:56:20 +00:00
parent c267866675
commit 391f6af7ab
1 changed files with 2 additions and 4 deletions
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6
firmware/thread.c
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@ -102,10 +102,8 @@ static inline void load_context(const void* addr)
"ldr r0, [%0, #44] \n" /* load start pointer */
"mov r1, #0 \n"
"cmp r0, r1 \n" /* check for NULL */
"beq .running \n" /* if it's NULL, we're already running */
"str r1, [%0, #44] \n"
"mov pc, r0 \n" /* not already running, so jump to start */
".running: \n"
"strne r1, [%0, #44] \n" /* if it's NULL, we're already running */
"movne pc, r0 \n" /* not already running, so jump to start */
: : "r" (addr) : "r0", "r1"
);
}