emacisr.asm

zilog的实时操作系统RZK,可以移植到多种处理器上

;********************************************************************************
; Copyright 2004, ZiLOG Inc.													*
; All Rights Reserved															*
;																				*
; This is UNPUBLISHED PROPRIETARY SOURCE CODE of ZiLOG Inc., and might			*
; contain proprietary, confidential and trade secret information of				*
; ZiLOG, our partners and parties from which this code has been licensed.		*
;																				*
; The contents of this file may not be disclosed to third parties, copied or	*
; duplicated in any form, in whole or in part, without the prior written		*
; permission of ZiLOG Inc.														*
;********************************************************************************

	.include "ez80F91.inc"

;	.sect	".isr"	;Added 24-07-02
	.extern _RZKResumeInterruptThread	
	.extern _emacInterruptThdHdl
	.extern _RZKISRProlog
	.extern _RZKISREpilog
	.extern _F91EmacTask
	.assume	adl=1

	.def	_emacisr
_emacisr:	
	PUSH	AF
	PUSH	BC
	PUSH	DE
	PUSH	HL		; scratch reg for function call from isr
	PUSH	IX
	PUSH	IY

	;***	Prevent the controller from generating interrupts

	CALL	_RZKISRProlog
	
	;***	Schedule the interrupt task for execution

	LD HL, (_emacInterruptThdHdl)
	PUSH HL
	CALL _RZKResumeInterruptThread
	POP HL
	CALL	_RZKISREpilog
	POP		IY
	POP     IX
	POP		HL
	POP		DE
	POP		BC
	POP		AF
	EI
	RET