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;
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;	***************************************************************************
;	See http://www.FreeRTOS.org for documentation, latest information, license
;	and contact details.  Please ensure to read the configuration and relevant
;	port sections of the online documentation.
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;
;------------------------------------------------------------------------------
#include "ISR_Support.h"
;------------------------------------------------------------------------------

#if __CORE__ != __78K0R__
	#error "This file is only for 78K0R Devices"
#endif

#define CS                    0xFFFFC
#define ES                    0xFFFFD

; Functions implemented in this file
;------------------------------------------------------------------------------

	PUBLIC    vPortYield
	PUBLIC    vPortStart

; Functions used by scheduler
;------------------------------------------------------------------------------
	EXTERN    vTaskSwitchContext
	EXTERN    vTaskIncrementTick

; Tick ISR Prototype
;------------------------------------------------------------------------------
	EXTERN    ?CL78K0R_V2_L00

	PUBWEAK   `??MD_INTTM05??INTVEC 68`
	PUBLIC    MD_INTTM05

MD_INTTM05    SYMBOL "MD_INTTM05"
`??MD_INTTM05??INTVEC 68` SYMBOL "??INTVEC 68", MD_INTTM05



;------------------------------------------------------------------------------
;   Port Yield function to check for a Task switch in the cooperative mode
;
;   Input:  NONE
;
;   Call:   CALL    vPortYield
;
;   Output: NONE
;
;------------------------------------------------------------------------------
    RSEG CODE:CODE
vPortYield:
	portSAVE_CONTEXT		        ; Save the context of the current task.
	call      vTaskSwitchContext    ; Call the scheduler.
	portRESTORE_CONTEXT		        ; Restore the context of whichever task the ...
	RETB

	
;------------------------------------------------------------------------------
;   Restore the context of the first task that is going to run.
;
;   Input:  NONE
;
;   Call:   CALL    vPortStart
;
;   Output: NONE
;
;------------------------------------------------------------------------------	
    RSEG CODE:CODE
vPortStart:
	portRESTORE_CONTEXT	            ; Restore the context of whichever task the ...
;	POP       PSW                   ; restore active task PSW
	reti					            ; ... scheduler decided should run.

;------------------------------------------------------------------------------
;   Perform the necessary steps of the Tick Count Increment and Task Switch
;   depending on the chosen kernel configuration
;
;   Input:  NONE
;
;   Call:   ISR
;
;   Output: NONE
;
;------------------------------------------------------------------------------	
#if configUSE_PREEMPTION == 1

MD_INTTM05:

	portSAVE_CONTEXT		        ; Save the context of the current task.
	call      vTaskIncrementTick    ; Call the timer tick function.
	call      vTaskSwitchContext    ; Call the scheduler.
	portRESTORE_CONTEXT		        ; Restore the context of whichever task the ...
	RETI
#else

MD_INTTM05:
	PUSH        AX                  ; save necessary general purpose register...
	PUSH        HL                  ; ...used by the ISR
	MOVW        AX, CS              ; save CS register
	PUSH        AX
	CALL        vTaskIncrementTick  ; Call the timer tick function.
	POP         AX
	MOVW        CS, AX              ; restore CS register
	POP         HL                  ; restore used general purpose registers
	POP         AX
	RETI
#endif

	REQUIRE ?CL78K0R_V2_L00
	COMMON INTVEC:CODE:ROOT(1)      ; set ISR location to the Interrupt vector table
	ORG 68
`??MD_INTTM05??INTVEC 68`:
	DW MD_INTTM05

	COMMON INTVEC:CODE:ROOT(1)      ; set ISR location to the Interrupt vector table
	ORG 126
`??vPortYield??INTVEC 126`:
	DW vPortYield

									; set value for the usCriticalNesting
	RSEG NEAR_ID:CONST:SORT:NOROOT(1)
`?<Initializer for usCriticalNesting>`:
	DW 10

;#endif

      END