单片机编程综合题:编程将片外RAM2000H起始的连续256字节数拷贝到4000h...答:ORG 0000H MOV DPTR,#2000H MOV R7,#0 LOOP:MOVX A,@DPTR PUSH ACC MOV A,DPH ADD A,#20H MOV DPH,A POP ACC MOVX @DPTR,A MOV A,DPH CLR C SUBB A,#20H MOV DPH,A INC DPTR DJNZ R7,LOOP SJMP END
单片机编程题,用汇编语言 片内RAM 30H 中存放两位BCD码,将其转换成ASC...答:MOV A, 30H ANL A, #0FH ORL A, #30H MOV 40H, A MOV A, 30H SWAP A ANL A, #0FH ORL A, #30H MOV 41H, A END
单片机程序设计题,用c或汇编编程都可以。请把程序编写出来!谢谢!_百...答:这个很简单的流水灯程序呀,LED EQU 30HORG 0000HSJMP MAINORG 0030HMAIN: MOV LED,#0FEH MOV R7,#8LOOP: MOV P0,LED LCALL DELAY MOV A,LED RL A MOV LED,A DJNZ R7,LOOP MOV LED,#7FH MOV R7,#8LOOP1: MOV P0,LED MOV A,LED RR A ...