JPH0224725A - Electronic computer - Google Patents

Abstract

PURPOSE:To simply utilize an internal storage device for other purposes by forming a flag in a loader for reading out an expansion function, and allowing the loader to determine whether the expansion function is to be read out by the flag or not. CONSTITUTION:An electronic computer is initialized, and processing is transferred to the loader 14 in the external storage device 13. After loading a reference, function the loader 14 loads the expansion function 15. At such a time, the flag FLAGA in the loader is checked, and when the flag has a value indicating no loading of the expansion function 15, the function 15 is not loaded, or in case of having a value indicating the loading of the function 15, the function 15 is load by processing 22. After ending the loading of the expansion function 15, a necessary expansion function is initialized and processing is transferred to an interpleter. By the way, the setting of the flag FLAGA is executed by a utility.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a loader for extending its functionality with an interpreted language and a utility for controlling the loader.

[Prior Art] Conventionally, when loading extended functions, users individually set which extended function to load by setting a dip switch or memory switch corresponding to each extended function.

FIG. 2 is a schematic diagram of loading a conventional extension. Reference numeral 1 denotes an external storage device having a loader that performs reading processing (6) of the extended function (4) according to the settings of the dip switch and memory switch, and 3 is the loader. 2
is an external storage device with a loader that does not load extensions unconditionally.

[Problem to be solved by the invention] However, there are cases where you want to use most of the internal storage for other purposes, such as large text or variables, and in that case, you must avoid loading all of the extended functions. Must be. However, to do so, you need to turn off the switches corresponding to those extensions.
Moreover, the same operation must be performed when restoring the original state, which is cumbersome. However, in order to avoid this work, you can create a new loader that does not load all the extensions, but the location of the loader on the external storage device may be fixed, and you will have multiple external storage devices. , it becomes impossible to share what you want to share on the external storage device.

SUMMARY OF THE INVENTION In order to solve these problems, it is an object of the present invention to provide a method for setting whether or not to load extended functions in an efficient manner that does not impose a burden on the user.

[Measures for Solving the Problems pJi] In order to solve the above problems, the present invention provides a flag in an interpreted language processor, an external storage device containing its extended functions, and a loader for reading out the extended functions. The present invention is characterized by comprising a control means having a loader that determines whether to load an extended function based on the flag, and a control means that controls the flag.

[Function] By having the control means as described above, the complexity of changing switches such as memory switches and dip switches is eliminated, and since only one loader is required, there is no need to have multiple external storage devices, and other files, etc. can be shared.

[Example] Examples of the present invention are shown below.

FIG. 1 is a schematic diagram illustrating the loading of an extended function of a computer according to the present invention.

11 is an interpreter, and 12 is an internal storage device that stores work and text used by the interpreter and stores extended functions. 13 is an external storage device, 14 is a program loader that loads standard functions and extended functions in the external storage device, 15 is an extended function, and 16 is a process that loads the extended functions in the loader. It is.

First, a specific example of the basic extended function will be shown and explained. KB/CRT in basic functions
There is a key manual process called LIO. The standard functions are input of 1-byte code and Kanji code, and in order to display Kanji, the Kanji code is actually input. On the other hand, the extension function inputs hiragana and converts it into kanji or sentences containing kanji. In this way, extensions have become more efficient and have improved functionality.

Next, the relationship between interpreters and extended functions will be explained. Although there is no limit to which one is activated first, it is necessary that the loading of the extended function is completed at least by the time the initialization process in the interpreter is completed. As an example, a case where the loader of the external storage device initializes the interpreter will be explained. First, the computer is initialized, and then the process is transferred to the loader on the external storage device. The loader loads the standard function on the external storage device, does not specify whether or not to load the standard function, and loads the extended function. This process will be described in detail later. After the loading of this extended function is completed, initialization processing is performed regarding the necessary extended function. The process then moves to interpreter initialization processing, and the interpreter is processed.

Next, we will explain how to load extensions.

First, set the flag in the loader to FLAGA, and set this F
LAGA means whether an extended function is loaded or not. This F
There is no stipulation regarding the correspondence between the LAGA value and the presence or absence of reading. Further, the FLAGA setting process will be described later. Check FLAGA in the loader. If the value means not to load the extension, do not load the extension. If it is necessary to indicate somewhere that the extension was not loaded, process it. to finish loading the extension. Furthermore, if FLAGA is a value that means loading an extended function, processing for loading the extended function is performed. (22 in FIG. 1) This process is performed by checking the switches set by the user, such as dip switches and memory switches, and depending on the meaning of the values of the switches. Check the status of the switch corresponding to each extended function and load the extended function based on that value.

Next, the process of setting a flag indicating whether or not to load an extended function will be explained. This process is a utility, and when the utility is started, the user first inputs the number of the external storage device for which the flag is to be set, and then reads out the flag on the corresponding external storage device and displays the current status.

There, the system waits for input of the value of the flag to be set, and the user inputs the value, and then the utility stores the value in the flag area on the external storage device and ends the process. It seems best to place this flag somewhere on the external storage device where it can be easily determined, for example
This is the space where the loader exists. Furthermore, if data indicating that this flag is present in the external storage device is stored on the external storage device, it can be distinguished from a conventional loader, and it is possible to prevent erroneously setting the flag to a conventional loader.

[Effects of the Invention] According to the invention described above, by providing a flag indicating whether or not extended functions are loaded on the external storage device in which the loader is located, and by providing a loader that loads the extended functions using the flag, the internal storage device can be easily used for other purposes. Furthermore, it is not necessary to have a plurality of external storage devices for simplicity, and other information can be shared.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram illustrating the process flow of loading extensions in accordance with the present invention. FIG. 2 is a schematic diagram of a conventional extension loading method. 11, Interpreter 12, Internal storage 13, External storage 14, Loader 15, Extension function 16, Extension function loading process 22, Loading of each extension function. Figure 1 Figure 2

Claims (1)

[Scope of Claims] (a) an interpreted language processing processor; (b) an external storage device containing extended functions of the interpreter; and (c) a flag for determining whether to load the extended functions; An electronic computer comprising at least a loader for determining whether to load an extended function based on the flag; and (d) an internal storage device for reading and storing the extended function.