单片机 用汇编语言怎么编写两个按键控制一个LED自加自减的程序_百度知...答:CJNE A,#100,MAIN1 LJMP MAIN K2: JB SP2,K1 JB SP2,LCALL DLY JNB SP2,MOV A,COUNT CJNE A,#0,DEC1 MOV COUNT,#100 DEC1: DEC COUNT MOV A,COUNT CJNE A,#100,MAIN1 LJMP MAIN DLY: MOV R7,#20 D1: MOV R7,#248 DJNZ R7,DJNZ R6,$-4 RET TAB: DB 0C0H,0F9H,0A4...