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Tidy up and comment.
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2fd4047164
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3 changed files with 49 additions and 47 deletions
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@ -91,34 +91,34 @@ extern "C" {
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/* Critical section control macros. */
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#define portNO_CRITICAL_SECTION_NESTING ( ( unsigned portBASE_TYPE ) 0 )
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#define portENTER_CRITICAL() \
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{ \
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extern volatile /*unsigned portSHORT*/ portSTACK_TYPE usCriticalNesting; \
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\
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portDISABLE_INTERRUPTS(); \
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\
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/* Now interrupts are disabled ulCriticalNesting can be accessed */ \
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/* directly. Increment ulCriticalNesting to keep a count of how many */ \
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/* times portENTER_CRITICAL() has been called. */ \
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usCriticalNesting++; \
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#define portENTER_CRITICAL() \
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{ \
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extern volatile /*unsigned portSHORT*/ portSTACK_TYPE usCriticalNesting; \
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\
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portDISABLE_INTERRUPTS(); \
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\
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/* Now interrupts are disabled ulCriticalNesting can be accessed */ \
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/* directly. Increment ulCriticalNesting to keep a count of how many */ \
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/* times portENTER_CRITICAL() has been called. */ \
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usCriticalNesting++; \
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}
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#define portEXIT_CRITICAL() \
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{ \
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extern volatile /*unsigned portSHORT*/ portSTACK_TYPE usCriticalNesting; \
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\
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if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
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{ \
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/* Decrement the nesting count as we are leaving a critical section. */ \
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usCriticalNesting--; \
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\
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/* If the nesting level has reached zero then interrupts should be */ \
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/* re-enabled. */ \
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if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
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{ \
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portENABLE_INTERRUPTS(); \
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} \
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} \
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#define portEXIT_CRITICAL() \
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{ \
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extern volatile /*unsigned portSHORT*/ portSTACK_TYPE usCriticalNesting; \
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\
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if( usCriticalNesting > portNO_CRITICAL_SECTION_NESTING ) \
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{ \
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/* Decrement the nesting count as we are leaving a critical section. */ \
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usCriticalNesting--; \
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\
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/* If the nesting level has reached zero then interrupts should be */ \
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/* re-enabled. */ \
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if( usCriticalNesting == portNO_CRITICAL_SECTION_NESTING ) \
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{ \
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portENABLE_INTERRUPTS(); \
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} \
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} \
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}
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/*-----------------------------------------------------------*/
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@ -127,7 +127,6 @@ extern void vPortYield( void );
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extern void vPortStart( void );
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extern void portSAVE_CONTEXT( void );
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extern void portRESTORE_CONTEXT( void );
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//#define portYIELD() vPortYield()
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#define portYIELD() __asm ( "trap 0" )
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#define portNOP() __asm ( "NOP" )
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extern void vTaskSwitchContext( void );
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@ -146,9 +145,6 @@ extern void vTaskSwitchContext( void );
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#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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static __interrupt void MD_INTP0(void);
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#ifdef __cplusplus
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}
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#endif
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