单片机汇编程序题：要求一定是汇编

ORG 0000HLJMP MAINORG 0003HLJMP EXT0ORG 0013HLJMP EXT1ORG 0030HMAIN: SETB EX0 SETB EX1 SETB IT1 SETB EA CLR 00H MOV R7,#8 MOV A,#0FEHMAIN1: MOV P1,A LCALL DELAY RL A DJNZ R7,MAIN1 MOV R7,#8 SJMP MAIN1EXT0: MOV R2,