JPH04130531A - Method for saving memory for handy terminal - Google Patents

Abstract

PURPOSE:To save the memory of the handy terminal by converting a program prepared with a program based on an operating system equipped with a personal computer into the internal form of the handy terminal and eliminating a comment and unnecessary space to be transferred to the handy terminal. CONSTITUTION:A personal computer prepares a program for handy terminal, and the prepared program is converted into the internal form of the handy terminal. In such a case, the operation is performed by a program based on an operating system and is not performed by the BASIC interpreter for personal computer in the case of the internal form of the handy terminal. Further, the space unnecessary for the execution of the comment and the program is respectively eliminated from the program converted into the internal code to compress the program, and the compressed program is loaded down to the handy terminal. Thus, the effective utilization of the memory for the handy terminal can be enabled.

Description

Detailed Description of the Invention "Industrial Application Fields" This product is a handy terminal used in equipment management systems in the electric power, telecommunication, and construction industries, as well as night-cold and summer systems in the distribution industry, etc. This paper relates to a method for saving memory on a handheld terminal.

"Prior Art" In recent years, handheld terminals have been widely used for equipment management and inventory management in the above-mentioned industries. Handy terminals are made small and lightweight for portability, and use built-in memory or memory cards as their storage devices.

Furthermore, there is a type of handy terminal 6c which is equipped with a general-purpose OS (operating system) such as MS-DO5 (registered trademark of Micro Corporation) and is capable of executing a RAS IC program using a RAS IC interpreter.

``Problem to be solved by the invention'' By the way, although the first condition for the above-mentioned handheld terminal is to make it small and lightweight, it is desired that the electronic storage capacity be increased in order to cope with the increasing amount of information. ing. However, the use of external storage devices such as hard disks and floppy disks or large-capacity memories leads to constraints on shape and increases in cost.

This invention was made in view of the above circumstances, and the purpose is to provide a memory saving method for a handy terminal that can cope with the increasing amount of information in the existing memory by measuring external storage devices and large-capacity memory. There is.

``Means to Solve the Problem'' This memory saving method for handheld terminals for sale is to save programs that are stored in the file area of the handy terminal (-programs that depend on the operating system installed in the personal Then, convert this created program into the internal format of the previous handy terminal, then delete comments and spaces unnecessary for program execution from this converted program, and transfer this program to the handy terminal. It is characterized by

"Operation" According to the above method, after creating a handy terminal program using a program that depends on the operating system installed in a personal computer, this program is converted to the internal format of the handy terminal, and further comments and comments are added from this program. Delete spaces that are unnecessary for program execution. Then, the program that has completed this processing is transferred to the handy terminal.

Therefore, since a program suitable for the internal format of the handy terminal is created in advance on the personal computer, there is no need to convert the program to the internal format on the handy terminal side. In addition, since the program converts the data into the internal format of the handy terminal, and comments and spaces are deleted from the program, the file area of the handy terminal can be used effectively. Furthermore, since comments are deleted from the program, there is no need for the handy terminal to skip over comments. Also, by compressing the program,
The transfer time to the handy terminal is reduced to 1. In addition, the conversion program on the personal computer side is -O5
By having compatibility, it is possible to operate even personal computers with different mws.

Embodiment Hereinafter, a memory saving method for a handy terminal, which is a method of the present invention, will be described with reference to the drawings. In addition, the following conditions will be given for detailed explanation of this invention.

(b) The handy terminal is equipped with MS-DO5,
RAS IC Raiden with ASiC interpreter can be used - Assume 6. In this case, it is assumed that there is no hard disk, floppy disk, or large capacity memory.

(b) As shown in the third aspect, the memory of the handy terminal is provided with a text area for storing programs and a file area for storing the programs when they are not being executed. The stored RAS I C file is ASCII (ASCII)
The cord or this hump shall be converted into an inner cone cord of the terminal conductor layer.

(c) To save memory, make effective use of the text area and file area, but the text area must be a certain size when using O8, so this area Effective use is difficult. Therefore, we will make effective use of the file area.

(d) When storing a RAS I C file in a file area, it is generally more effective to convert it into an internal code and then store it because the amount of data is smaller.

However, as shown in FIG. 4, programs created on a personal computer are generally in ASCII format, so if the program is to be stored in internal code, it must be converted to this code.

In this case, a program created on a personal computer can be converted to the internal format of the computer's RAS I C interpreter, but the handheld terminal's BAS I C interpreter and the personal computer's RAS I C interpreter are Therefore, it is difficult to convert to the internal model of a handy terminal. Therefore, in order to effectively use the handy terminal's file area, you must run an ASCII program using the handy terminal's RAS.
It is necessary to load it with an IC interpreter, convert it to internal code, and save it.

The method of the present invention will be explained based on the above premise.

FIG. 1 is a conceptual diagram for explaining the present invention in detail, with the left side of the drawing centered on chain line A being a personal computer, and the right side being a handy terminal station.

Personal computers perform the following tasks.

■Create a program for the handy terminal.

Convert the program created in ■■ to the weight code of the handy terminal. In this case, regardless of the model of the personal computer, the internal formatting of the handy terminal is done by a program that depends on O9, and not by the RAS IC interpreter of the personal computer.

■Delete comments and spaces unnecessary for program execution from the program converted to internal code, and compress the program.

■Download the compressed program to the handy terminal.

The handy terminal stores the transferred program as a file in the file area.

In this case, the received program has been converted into the internal code of this handy terminal, and comments and unnecessary spaces in program execution have been deleted, resulting in the minimum I rf.

Here, we will show an example of a trial calculation of how much the program capacity will be reduced by the above-mentioned function.

rloo IF Af= l THEN
1010 BiLSE 1050: RE'-Kai Moji 1 No Hentain'' If you convert a 50-word, 7-line program to the type ζ, you will get ``■■■■Ag="1'"■■■■■■■ ■■■■ This is 39 bytes/line. In this case, ■■, ■■, ■■... Line number is converted into 2-byte internal format ■■... rF is converted into internal format (2 bytes) ■■...
・Convert THEN to internal format (2 bytes) ■■...E
Convert LSE to internal format (2 bytes) ■■...REM
Convert to internal format (2 bytes) ■...: Convert internal format (2 bytes)
1 byte) and remove comments and spaces necessary for program execution, it becomes 18 bytes/line [■■■■A$・°1°■■■■■■■■''.

It can thus be seen that a 50 byte/line program is reduced to 18 bytes/line. In general, when converted to the "inner" format, several bytes of information are attached to each line, so it cannot actually be expressed as 18 bytes/ff. However, in this example, the capacity will be reduced to 50% or less.

Also, it is clear that the more comments a program has, the higher the amount of space that will be reduced.

For reference, FIG. 2 shows a flowchart of the above-mentioned processing. In this flowchart, the program is converted to the internal model of the handy terminal and the compressed program is transferred to the handy terminal (using a communication line), but as shown in Figure 5, It is also possible to write directly to a memory card using a memory card reader/writer connected to a computer and transfer it to the daily terminal via this.

``Effects of the Invention'' As explained above, according to the memory saving method for a handy terminal of the present invention, the following effects can be achieved. There is no need to convert to an internal format on the handy terminal side. Therefore, no effort is required for conversion.

■Since the program is converted into the handy terminal's internal format and comments and spaces are deleted, a program with the minimum required capacity can be supplied to the hump terminal. Therefore, it is possible to effectively use the memory of the handy terminal.

■Since comments are deleted from the program, there is no need for the handheld terminal's interpreter to ignore comments, improving processing speed.

- Compressing 10 grams reduces the time required to transfer data to a handy terminal (if a communication line is used, the communication time will be shortened; if a memory card is used, the writing time will be shortened).

■The conversion of 10 grams on the personal computer side is the same as -
Since it is compatible with O3, it can be operated even if the model of personal computer changes.

[Brief explanation of the drawing]

Part 1 is a conceptual diagram for explaining a memory saving method for a handy terminal, which is an example of this commercial sale, Part 2N is a flowchart of the example, and Figures 3 and 4 are the premises of the example. FIG. 5 is a diagram for explaining the method of converting the program into the internal format of the handy terminal according to the same embodiment, and further transferring the compressed program to the handy terminal using a memory card.

Claims (1)

[Claims] A program to be stored in the file area of the handy terminal is created using a program that depends on the operating system installed on the personal computer, then this created program is converted to the internal format of the handy terminal, and comments and comments are then created from the converted program. A method for saving memory in a handy terminal, comprising deleting space unnecessary for program execution, and transferring the program to the handy terminal.