用汇编语言编写80c51单片机程序,求内部RAM中50H~59H十个单元内容的平均...答:结合1,2,3楼,考虑了溢出问题。花了好多时间才想出来了。希望对你有帮助。ORG 0000H AJMP MAIN ORG 0030H MAIN:MOV R0,#50H MOV R7,#10 MOV R2,#00H MOV A,#00H LOOP:CLR C ADD A,@R0 JNC BBB INC R2 CLR C BBB: INC R0 DJNZ R7,LOOP MOV 5CH,A ;把和放5CH,不用管...
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 ...