用汇编语言实现一个电子秒表答:cjne a,#20,over mov cou,#0 inc diyi mov a,diyi cjne a,#10,over mov diyi,#0 inc dier mov a,dier cjne a,#6,over mov dier,#0 over: mov th0,#3ch mov tl0,#0b0h pop psw pop acc reti dely1ms:mov r7,#250 dl1: nop nop djnz r7,dl1 ret table:db 28h,0eb...
51单片机为基础用汇编语言编写用数码管显示一个同时有"加""减""乘...答:ORG 0000H LJMP MAIN ORG 0100H MAIN:MOV SP,#7EH MOV 22H,#00H CLR P2.0 CLR P2.3 MOV 20H,#00H MOV 21H,#00H MOV 30H, #00H MOV 31H, #00H MOV 32H, #00H ;初始化 SU: MOV 7DH,#0FFH MOV 7EH,#0FFH MOV 7FH,#0FFH KEYI:ACALL KS1 CJNE A,#0F0H,LK1 ACALL ...
汇编语言编写电子秒表代码答:MOV 35H,#0 MOV 34H,#0 MOV 33H,#0 SJMP LOOP EXTINT0:PUSH ACC INC KEYVAL MOV A,KEYVAL CJNE A,#3,EXT00 EXT00:JC EXT01 MOV KEYVAL,#0 EXT01:POP ACC RETI T0ISR:PUSH ACC CLR TR0 MOV TH0,#3CH MOV TL0,#0B0H SETB TR0 INC CLK MOV A,CLK CJNE A,#2,T0ISRE ...
跪求汇编语言编写的时钟程序!答:CJNE A,#24,LOOP0 LOOP0:JC LOOP MOV HOUR,#0 SJMP LOOP LOOP1:JB P1.6,LOOP2 JNB P1.6,INC MIN MOV A,MIN CJNE A,#60,LOOP11 LOOP11:JC LOOP MOV MIN,#0 SJMP LOOP LOOP2:JB P1.7,LOOP JNB P1.7,INC SEC MOV A,SEC CJNE A,#60,LOOP21 LOOP21:JC LOOP MOV SEC,#0...