MCS-51单片机应用子程序：15.1.4通过“复位”使系统恢复正常

AJMP START MOV C,PSW.5 JC ERROR SETB PSW.5 LJMP MAIN ERROR: CLR EA MOV DPTR,#ERR1 PUSH DPL PUSH DPH RETI ERROR1 MOV 66H,#0AAH MOV 67H,#55H CLR A PUSH ACC PUSH ACC RETI