汇编之中断申请（例子）
;*****************************************************************************; This file is a base code template for assembley code generation on the 8PE53.;*****************************************************************************;* TITLE :;* REVISION :;* AUTHOR :;* COMPANY :;* DATE :;* CHIP :8PE53;* CONFIG :;*****************************************************************************;---------------Include files Segment-----------------------------------------#include <8PE53.ASH>;---------------Custom define segment-----------------------------------------RG_INT_ACCTMP REG 0x10 ;example register definitionRG_INT_STATMP REG 0x11 ;example register definitionRG_INT_PCHTMP REG 0x12 ;example register definition;---RG_TEMP REG 0x13 ;example register definitionRG_COUNT0 REG 0x15RG_COUNT1 REG 0x16RG_COUNT2 REG 0x17RG_COUNT3 REG 0x18;---------------vaule segment-------------------------------------------------EQ_AAA EQU 0x55 ;example value definition;---------------Program segment----------------------------------------------- ORG 0x000;---------------Software Interrupt Vector segment----------------------------- ORG 0x002 ;Software INT vector ;Software interrupt program is written here.;---------------Hardware Interrupt Vector segment----------------------------- ORG 0x008 ;Hardware INT vector MOVAR RG_INT_ACCTMP SWAPR STATUS,A MOVAR RG_INT_STATMP SWAPR PCHBUF,A MOVAR RG_INT_PCHTMP ;Save ACC STATUS PCHBUF template code ;---INCR RG_COUNT0, 1;Increament RGCOUNT0BTRSC STATUS, 2;Test STATUS Z bitINCR RG_COUNT1, 1;If RG_COUNT0 is verflow, increse RG_COUNT1ANDIA 0X04;--- MOVIA 0X00 ;Hardware interrupt program is written here.MOVAR INTFLAG;Clear interrupt FLA FLAG ;---INT_EXIT: SWAPR RG_INT_PCHTMP,A MOVAR PCHBUF SWAPR RG_INT_STATMP,A MOVAR STATUS SWAPR RG_INT_ACCTMP,R SWAPR RG_INT_ACCTMP,A RETFIE ;Restore ACC STATUS PCHBUF template code;--------------------init---------------------INIT: CLRAMOVAR PORTBMOVIA 0X00IOST PORTB ;Set PortB to output mode, IOB3 is input onlyMOVIA 0X00OPTION ;Use internel clock sourceMOVIA 0X81MOVAR INTEN;Enable time0 intrCLRAMOVAR RG_COUNT0;Init counterMOVAR RG_COUNT1MOVAR RG_COUNT2MOVAR RG_COUNT3GOTO MAIN;---------------------main--------------------MAIN:BTRSS RG_COUNT0, 0GOTO INITGOTO MAIN;---------------MCU Boot/Reset Vector segment--------------------------------- ORG 0x3FF ;MCU reset vector GOTO INIT
