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A little optimisation.

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This commit is contained in:
Richard Barry 2008-05-23 15:16:25 +00:00
parent b6aa1d6ca8
commit f689c709ab
3 changed files with 19 additions and 26 deletions
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16
Source/portable/MPLAB/PIC32MX/portmacro.h
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@ -94,6 +94,7 @@ extern "C" {
/* Critical section management. */
#define portIPL_SHIFT ( 10 )
#define portALL_IPL_BITS ( 0x3f << portIPL_SHIFT )
#define portSW0_BIT ( 0x01 << 8 )
#define portDISABLE_INTERRUPTS() \
{ \
@ -130,10 +131,19 @@ extern void vPortClearInterruptMaskFromISR( unsigned portBASE_TYPE );
/*-----------------------------------------------------------*/
/* Task utilities. */
extern void vPortYield( void );
#define portYIELD() vPortYield()
#define portNOP() asm volatile ( "nop" )
#define portYIELD() \
{ \
unsigned portLONG ulStatus; \
\
/* Unmask all interrupts. */ \
ulStatus = _CP0_GET_CAUSE(); \
ulStatus |= portSW0_BIT; \
_CP0_SET_CAUSE( ulStatus ); \
}
#define portNOP() asm volatile ( "nop" )
/*-----------------------------------------------------------*/