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Made set_irq_level() an inline function, and optimized it by removing the bit shifts

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4330 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2004-03-02 11:32:59 +00:00
parent aa5b23d616
commit 111a972b65
8 changed files with 25 additions and 22 deletions
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12
firmware/system.c
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@ -318,18 +318,6 @@ void system_reboot (void)
"r"(*(int*)0),"r"(4));
}
/****************************************************************************
* Interrupt level setting
****************************************************************************/
int set_irq_level(int level)
{
int i;
/* Read the old level and set the new one */
asm volatile ("stc sr, %0" : "=r" (i));
asm volatile ("ldc %0, sr" : : "r" (level << 4));
return (i >> 4) & 0x0f;
}
void UIE (unsigned int pc) /* Unexpected Interrupt or Exception */
{
bool state = true;