单片机作业~跑马灯。。中断。。等等

相信我 绝对用得到 ORG 00H SJMP MAIN ;跳转到主程序 ORG 30H MAIN: MOV R0,#02H FP10: CALL DELAY CPL P1.0 DJNZ R0, FP10 CPL P1.1 MOV R0,#02H SJMP FP10 DELAY: MOV R1,#250 DEL1: MOV R2,#250 del0: nop nop nop DJNZ R2,del0 NOP N