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实验一 存储器读写实验

实验一 存储器读写实验. 一、实验目的. 熟悉静态 RAM 读写数据编程方法。. 二、实验内容 对指定地址区间的 RAM(2000H~27FDH) 先进行写数据 55AAH ， 然后将其内容读出再写到 3000H~33FEH 中。. 三、实验步骤 ( 运行实验程序 ) 1 、联机时，实验程序文件名为 DVCCH8EXEH812S.EXE 。 2 、单机时，实验程序起始地址为 F000 ： 9700 。 在系统显示监控提示符“ P.” 时： 输入 F000 按 F1 键

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实验一 存储器读写实验

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  1. 实验一存储器读写实验 一、实验目的 熟悉静态RAM读写数据编程方法。 二、实验内容 对指定地址区间的RAM(2000H~27FDH)先进行写数据55AAH， 然后将其内容读出再写到3000H~33FEH中。

  2. 三、实验步骤(运行实验程序) 1、联机时，实验程序文件名为\DVCC\H8EXE\H812S.EXE。 2、单机时，实验程序起始地址为F000：9700。 在系统显示监控提示符“P.”时： 输入F000 按F1键 输入9700 按EXEC键 稍后按RESET键退出，用存储器读写方法检查2000H~3000H中的内容应都是55AA。

  3. 四、实验参考程序 CODE SEGMENT ASSUME CS:CODE ORG 1700h START: MOV AX,0H MOV DS,AX MOV BX,2000H MOV AX,55AAH MOV CX,03FFH RAMW1: MOV DS:[BX],AX ADD BX,0002H LOOP RAMW1

  4. MOV AX,2000H MOV SI,AX MOV AX,3000H MOV DI,AX MOV CX,03FFH CLD REP MOVSB JMP $ CODE ENDS END START

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