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1.HP—65的逻辑结构(图1的说明)(1)位于图1顶部的OFF/ON(关/开)开关打在“开”的位置时,计算器全部置零。(2)PRGM/RUN(程序/运行)开关决定计算器的操作方式。打在“程序”方式时,可以改变用户程序存贮器的内容。打在“运行”方式时,可进行运算。(3)在“运行”操作方式时,由于图1底部的键盘与固化程序的相互配合,可以用按键将数据送入计算器,或者按键使计算器运算或执行其他功能。在“程序”操作方式时,对按键的各步骤作不同的解释。即每次按键时,将对应于键的编码存入用户存贮器,使以后能(在“运行”操作方式时)按编码执行程序。
1.HP-65 Logic Structure (Explanation of Figure 1) (1) The calculator is set to all zeroes when the OFF / ON switch located at the top of Fig. 1 is set to the “ON” position. (2) The PRGM / RUN switch determines how the calculator operates. When playing in the “Program” mode, the contents of the user program memory can be changed. In the “run” mode, can be calculated. (3) In the “run” mode of operation, due to the cooperation of the keyboard and curing program at the bottom of Figure 1, the data can be sent to the calculator by pressing the keys or the calculator can be operated or other functions can be performed by pressing the keys. In the “program” mode of operation, the steps of the buttons for different interpretations. That is, each time the key is pressed, the code corresponding to the key is stored in the user memory so that the program can be executed later (in the “run” mode of operation) in accordance with the code.