JPS61230189A - Character pattern loading processing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] From all character patterns that store all character patterns,
In an information processing device that transfers a necessary character pattern to a pattern memory and outputs dot characters based on the contents of the pattern memory, the contents of the pattern memory are stored in the initial pattern memory when the device is stopped, and the contents of the pattern memory are stored in the initial pattern memory when the device is started. A configuration is shown in which the contents of the initial pattern memory are stored in the pattern memory.

[Industrial application field]

The present invention relates to a character pattern loading processing method,
In particular, the present invention relates to a character pattern loading processing method in an information processing device that outputs characters including Chinese characters to a printer, display device, etc. as dot characters using a dot matrix method.

[Conventional technology]

In information processing equipment, when outputting kanji as dot characters using the dot matrix method to printers, display devices, etc., the method in which kanji dot patterns for all character types to be used are stored in the pattern memory in advance increases the number of character types to be used. As the pattern memory increases, the capacity of the pattern memory increases and becomes difficult to realize.

Generally, in such cases, all the kanji patterns to be used are stored in an external storage device such as a magnetic disk device, and only the most frequently used kanji patterns are always stored in the pattern memory. LRU control (1e
as recently used control
1) is adopted.

Normally, when the device is finished using, the previous frequency management information is saved to a disk device, etc., and when the device is restarted, the kanji patterns are read into the pattern memory based on the previous frequency management information, thereby performing continuous management. Common.

[Problem that the invention seeks to solve]

However, it is common to store kanji fonts in the order of kanji code on magnetic disks, etc., and the process of reconfiguring the pattern memory based on frequency management information requires a large number of accesses to the disk device, etc., resulting in A problem arises in that the startup processing time of the device increases.

[Means for solving problems]

FIG. 1 is a diagram showing the principle of the present invention. In the figure, 1 is an all-character pattern file, 2 is a pattern memory, 3 is an initial pattern file, 4 is a startup processing section, 5 is an LRU control section, and 6 is an update process. Department.

The all-character pattern file stores all character patterns, the pattern memory 2 stores character patterns that are part of the character patterns stored in the all-character pattern file 1, and the initial pattern file 3 stores: The contents of the pattern memory 2 are saved and held when the device stops operating, and the saved and held contents are stored in the pattern memory 2 when the device is started.The startup processing unit 4 saves the contents of the initial pattern file 3 to the pattern memory. The LRU control unit 5 performs the process of storing frequently used character patterns from the all character pattern file 1 into the pattern memory 2 during operation of the device, and the update processing unit 6 performs the process of storing frequently used character patterns in the pattern memory 2. This process stores the contents of the pattern memory 2 into the initial pattern file 3.

In FIG. 1, the contents of an initial pattern file 3 are stored in a pattern memory 2 when the apparatus is started up. Thereafter, when a character pattern that does not exist in the pattern memory 2 is required, the character pattern is read from the all-character pattern file 1 and stored in the pattern memory 2.

At this time, by LRU control, on the storage area of the least recently used character pattern on the pattern memory 2,
The character patterns read from the full character pattern file 1 are stored in an overwritten format.

Next, when the device stops operating, the contents of the pattern memory 2 are stored in the initial pattern file 3.

[Effect]

In the present invention, a character pattern file that is read into the pattern memory at startup and a character pattern file that is dynamically read into the character pattern memory by LRU control during operation are prepared as independent files.

The former character pattern file (initial pattern file in FIG. The all-character pattern file in Figure 1) is a large-capacity file that stores Kanji patterns corresponding to all the Kanji codes in use in code order so that it can be searched by Kanji code in use.

When the power switch is turned off, the initial pattern file is updated by overwriting the frequency management information and the contents of the pattern memory at that time.

On the other hand, the all-character pattern file is used only during LRU control during operation, and is not updated by frequency management.

By adopting such a method, it is possible to quickly restore the processing results up to the previous time, so that the startup processing time can be shortened while performing continuous frequency management.

〔Example〕

FIG. 2 is a block diagram of one embodiment of the present invention, in which io is a central processing unit (CPU), 1) is a main memory, and 12 is a block diagram of an embodiment of the present invention.
is a pattern memory area, 13 is an initial font file, 14 is a full tooth font file, 15 is a program processing section, 16 is a startup processing section, 17 is an LRU control section, 18
19 is an LRU information area, 20 is a screen buffer area, 21 is a bitmap memory, and 22 is a display.

When FIG. 1 and FIG. 2 are correlated, the all-character pattern file 1 is stored in the all-tooth font file 14, and the pattern memory 2 is
is stored in the pattern memory area 12, the initial pattern file 3 is stored in the initial font file 13, the startup processing unit 4 is stored in the startup processing unit 16, the LRU control unit 5 is stored in the LRU control unit 17, and the update processing unit 6 is stored in the update processing unit 18. Corresponds to each.

The operation of the embodiment shown in FIG. 2 is as follows.

First, when the power switch of the device is turned on, control is transferred to the startup processing section 16, and the startup processing section 16 stores the character pattern in the initial font file 13 in the pattern memory area 12, and stores the frequency management information in the LRU information. Each is stored in area 19.

After that, in the screen display process, the program processing unit 1
5 converts the character code information in the screen buffer area 20 into a character pattern with reference to the pattern memory area 12, and stores the converted character code information in the bitmap memory 21. The contents of bitmap memory 21 are displayed on display 2.
2 will be displayed on top.

Here, when the character pattern corresponding to the character code information in the screen buffer area 20 does not exist in the pattern memory area 12, the LRU control unit 17 is activated. The LRU control unit 17 reads the character pattern from the all-tooth font file 14, refers to the contents of the LRU information area 19, and stores it in the position of the least recently used character pattern in the pattern memory area 12. .

Then, the LRU control unit 17 updates the contents of the LRU information area 19.

In this way, the pattern memory area 12 and the LRU
The contents of the information area 19 are sequentially updated.

Next, when the power switch is turned off to stop the operation of the device, the update processing unit 18 is activated before the power supply device is actually disconnected. Update processing unit 1
8 is a pattern memory area 12 and an LRU information area 1
9 is saved and stored in the initial font file 13. Thereafter, a disconnection operation is performed on the power supply device.

As a result, the latest character pattern information at the time the device is stopped will be stored in the initial font file 13, and processing will be restarted using this latest character pattern information when the power is turned on next time. Become.

〔Effect of the invention〕

According to the present invention, when the device is started, it is possible to read the latest initial pattern at the time of the previous final operation all at once, so the number of accesses to the magnetic disk device, etc. is reduced, and the startup processing time is significantly reduced. This can bring about the excellent effect of shortening the length.

[Brief explanation of drawings]

FIG. 1 is a principle diagram of the present invention, and FIG. 2 is a block diagram of one embodiment of the present invention. In FIG. 1, l is an all-character pattern file, 2 is a pattern memory, 3 is an initial pattern file, 4 is a startup processing section, 5 is an LRU control section, and 6 is an update processing section.

Claims (1)

[Scope of Claims] An information processing device that outputs characters including Chinese characters to a printer, display device, etc. as dot characters using a dot matrix method, which includes: an all-character pattern file (1) that stores all character patterns; A pattern memory (2) that stores a part of character patterns among the character patterns stored in the pattern file (1), and a pattern memory (2) that stores a part of the character patterns stored in the pattern file (1), and a
The contents of 2) are saved and held, and when the information processing device is started up, the saved contents are saved in the pattern memory (
an initial pattern file (3) stored in 2), a startup processing unit (4) that performs a process of storing the contents of the initial pattern file (3) in the pattern memory (2), and operation of the information processing device. an LRU control unit (5) that stores frequently used character patterns from the all character pattern file (1) into the pattern memory (2), and stores the contents of the pattern memory (2) into the initial pattern. an update processing unit (6) that performs processing for storing data in the file (3), and is configured to store the contents of the initial pattern file (3) in the pattern memory (2) when the information processing device is started up. A character pattern loading processing method characterized by: