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Continue 78K0R development.

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Richard Barry 2009-02-05 13:01:37 +00:00
parent 617ddbb61f
commit e311bdb650
8 changed files with 226 additions and 151 deletions
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20
Demo/NEC_78K0R_IAR/ButtonISR.s26
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@ -30,6 +30,14 @@
;
;------------------------------------------------------------------------------
;
; This file defines a wrapper for the interrupt generated each time the button
; on the target board is pushed. The asm wrapper is used to save and restore
; the task context as a context switch may occur within the ISR itself.
; The C portion of the ISR is defined within ButtonTask.c.
;
; Include the portSAVE_CONTEXT and portRESTORE_CONTEXT macros.
#include "ISR_Support.h"
PUBLIC vButtonISRWrapper
@ -37,15 +45,21 @@
RSEG CODE:CODE
vButtonISRWrapper:
vButtonISRWrapper:
; Save the current task context.
portSAVE_CONTEXT
; Call the C portion of the ISR.
call vButtonISRHandler
; Restore the context of whichever task is to run next - which might be
; different from the task that was originally interrupted.
portRESTORE_CONTEXT
RETI
reti
; Set ISR location to the Interrupt vector table.
; Place the ISR into the vector table.
COMMON INTVEC:CODE:ROOT(1)
ORG 8
`??vButtonISRWrapper??INTVEC 8`: