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SH1: Tiny optimisation of the thread scheduler.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7406 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2005-08-26 22:52:31 +00:00
parent a2224dfbfa
commit 6d54d6c088
1 changed files with 4 additions and 3 deletions
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7
firmware/thread.c
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@ -20,6 +20,7 @@
#include <stdbool.h>
#include "thread.h"
#include "panic.h"
#include "system.h"
#include "kernel.h"
#include "cpu.h"
@ -196,7 +197,7 @@ static inline void load_context(const void* addr)
#endif
/*---------------------------------------------------------------------------
/*---------------------------------------------------------------------------
* Switch thread in round robin fashion.
*---------------------------------------------------------------------------
*/
@ -215,7 +216,7 @@ void switch_thread(void)
#ifdef CPU_COLDFIRE
asm volatile ("stop #0x2000");
#elif CONFIG_CPU == SH7034
SBYCR &= 0x7F;
and_b(0x7F, &SBYCR);
asm volatile ("sleep");
#elif CONFIG_CPU == TCC730
/* Sleep mode is triggered by the SYS instr on CalmRisc16.
@ -357,4 +358,4 @@ int thread_stack_usage(int threadnum)
return ((thread_stack_size[threadnum] - i * sizeof(int)) * 100) /
thread_stack_size[threadnum];
}
}