单片机实验程序及流程图.doc

三．程序清单及程序流程框图 ORG 0000H LJMP MAIN MAIN: MOV R0,#30H MOV R2,#10H CLR A A1: MOV @R0,A INC R0 INC A DJNZ R2,A1 MOV R0,#30H MOV R1,#40H MOV R2,#10H A2: MOV A, @R0 MOV @R1,A INC R0 INC R1 DJNZ R2, A2 MOV R1,#40H MOV DPTR ,#4800H MOV R2, #10H A3: MOV A,@R1 MOVX @DPTR ,A INC R1 INC DPTR DJNZ R2,A3 MOV SP,#60H MOV R2,#10H MOV DPTR ,#4800H PUSH DPL PUSH DPH MOV DPTR,#5800H MOV R3,DPL MOV R4,DPH A4: POP DPH POP DPL MOVX A,@DPTR INC DPTR PUSH DPL PUSH DPH MOV DPL,R3 MOV DPH,R4 MOVX @DPTR,A INC DPTR MOV R3