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Continue 78K0R development.

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This commit is contained in:
Richard Barry 2009-02-04 13:08:12 +00:00
parent 299557fed2
commit bfd67da1e7
3 changed files with 101 additions and 70 deletions
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69
Source/portable/IAR/78K0R/portasm.s26
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@ -29,8 +29,7 @@
; ***************************************************************************
;
;------------------------------------------------------------------------------
; Note: Select the correct include files for the device used by the application.
#include "FreeRTOSConfig.h"
#include "ISR_Support.h"
;------------------------------------------------------------------------------
#if __CORE__ != __78K0R__
@ -51,12 +50,6 @@
EXTERN vTaskSwitchContext
EXTERN vTaskIncrementTick
; Variables used by scheduler
;------------------------------------------------------------------------------
EXTERN pxCurrentTCB
EXTERN usCriticalNesting
; Tick ISR Prototype
;------------------------------------------------------------------------------
EXTERN ?CL78K0R_V2_L00
@ -68,66 +61,6 @@ MD_INTTM05 SYMBOL "MD_INTTM05"
`??MD_INTTM05??INTVEC 68` SYMBOL "??INTVEC 68", MD_INTTM05
;------------------------------------------------------------------------------
; portSAVE_CONTEXT MACRO
; Saves the context of the remaining general purpose registers, CS and ES
; (only in far memory mode) registers
; the usCriticalNesting Value and the Stack Pointer
; of the active Task onto the task stack
;------------------------------------------------------------------------------
portSAVE_CONTEXT MACRO
PUSH AX ; save AX Register to stack
PUSH HL
#if configMEMORY_MODE == 1
MOV A, CS ; save CS register
XCH A, X
MOV A, ES ; save ES register
PUSH AX
#else
MOV A, CS ; save CS register
PUSH AX
#endif
PUSH DE ; save the remaining general purpose registers
PUSH BC
MOVW AX, usCriticalNesting ; save the usCriticalNesting value
PUSH AX
MOVW AX, pxCurrentTCB ; save the Stack pointer
MOVW HL, AX
MOVW AX, SP
MOVW [HL], AX
ENDM
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
; portRESTORE_CONTEXT MACRO
; Restores the context of the Stack Pointer, usCriticalNesting
; value, general purpose registers and the CS and ES (only in far memory mode)
; of the selected task from the task stack
;------------------------------------------------------------------------------
portRESTORE_CONTEXT MACRO
MOVW AX, pxCurrentTCB ; restore the Stack pointer
MOVW HL, AX
MOVW AX, [HL]
MOVW SP, AX
POP AX ; restore usCriticalNesting value
MOVW usCriticalNesting, AX
POP BC ; restore the necessary general purpose registers
POP DE
#if configMEMORY_MODE == 1
POP AX ; restore the ES register
MOV ES, A
XCH A, X ; restore the CS register
MOV CS, A
#else
POP AX
MOV CS, A ; restore CS register
#endif
POP HL ; restore general purpose register HL
POP AX ; restore AX
ENDM
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
; Port Yield function to check for a Task switch in the cooperative mode