用汇编语言编制一个 将内存BUFA单元存放的8个数字传送到BUFB单元中...答:使用MOVS指令,复制内存单元。DS:SI指向源,ES:DI指向目标 例:DATA SEGMENT BUFA db 'abcdefgh',0DH,0AH,'$'BUFB db 8 dup(?),0DH,0AH,'$'DATA ENDS CODE SEGMENT ASSUME CS:CODE, DS:DATA, ES:DATA START:MOV AX,DATA MOV DS,AX MOV ES,AX MOV CX,8 MOV SI,OFFSE...
花样流水灯设计汇编语言答:RR A ;1顺时针 MOV R5, A JMP WAIT _2: CJNE R6, #2, WAIT MOV P1, R5 MOV A, R5 RL A ;2逆时针 MOV R5, A WAIT:JNB TF0,CALL SET_T0 CALL R_ABCD DJNZ R7, WAIT JMP LOOP ;--- R_ABCD:JNB P2.0, KA JNB P2.1, KB ...
利用汇编语言,设计一个控制程序,能够实现从led0至led7循环点亮,逆时针...答:MOV TH0,#HIGH(65536-50000) MOV TL0,#LOW(65536-50000) SETB TR0 DJNZ R2,T0E MOV R2,#40 JB 00H,T001 RL A MOV P0,A SJMP T002T001: RR A MOV P0,AT002: DJNZ R3,T0E MOV R3,#6 CPL 00HT0E: RETI ...
单片机汇编语言按键控制流水灯,两个开关k1,k2。实现功能按下k1,流水灯...答:JB 01H,LOOP3 JB 00H,LOOP4 SJMP MAINLOOP3: MOV P0,A RR A LCALL DELAY SJMP LOOPLOOP4: MOV P0,A RL A LCALL DELAY SJMP LOOPDELAY: MOV R2,#200DLY: MOV R3,#250 DJNZ R3,$ DJNZ R2,DLY RET END ...
单片机汇编语言灯泡p1.0到p1.7流水之后,再p1.7到p1.0循环亮,间隔一秒...答:ORG 0000H LJMP MAIN ORG 0030H MAIN:MOV R2,#8 MOV A,#0FEH LOOP1:MOV P1,A LCALL DELAY RL A DJNZ R2,LOOP1 MOV R2,#8 LOOP2:RR A MOV P1,A LCALL DELAY DJNZ R2,LOOP2 SJMP MAIN DELAY:MOV R3,#10 DLY1:MOV R4,#200 DLY2 MOV R5,#248 DJNZ R5,DJNZ R4,DLY2 DJNZ R3...