JPS6126122A - Character processor - Google Patents

Abstract

PURPOSE:To display storing status in a memory without the increase of a new key or the formation of a new command by displaying the storing status in the storage means in response to the continuous depression of a specific control key and a specific character key. CONSTITUTION:When the specific control key is depressed to set up a text editing mode, reset operation is executed, and then the number of bytes stored in an RAM3 is counted up. Whether an inter-word separator or an intersentence separator is read out or not is decided, and when no separator is read out, the contents of a stroke counter 16 are counted up one by one. When the inter-word separator is read out the contents of a word counter 17 are counted up one by one. At the reading of the intersentence separator, a loop is repeated until the reading of an end separator. When the end separator is detected, the contents to be displayed are selected on the basis of the combination of the depressed specific keys and the storing status in the memory is displayed in accordance with the request.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a character processing device equipped with a keypad.

More specifically, the present invention relates to a character processing device having a character key and a plurality of control keys, and by pressing a combination of a specific control key and a specific character key,
It is configured to display the storage status in memory or the number of keystrokes.

[Prior art]

Conventionally, in order to display the memory usage status.

■It was necessary to newly provide an independent control key corresponding to the current specific function, or ■generate a specific command code by a combination of character keys.

However, as the functions of character processing devices become more complex and sophisticated, arranging a large number of control keys within a limited keyboard space brings about physical problems such as placement restrictions. Alternatively, setting a specific command code by a combination of character keys increases the complexity of the operation and significantly reduces the operability.

〔the purpose〕

An object of the present invention is to eliminate the above-mentioned conventional drawbacks and to easily display the storage status in memory without adding new keys on the keyboard or creating new commands. An object of the present invention is to provide a character processing device having the above structure.

In order to achieve such an objective, the present invention provides control keys,
A character processing device comprising a character key and a storage means 9 display means, characterized in that the storage state in the storage means is displayed in response to successive presses of a specific control key and a specific character key.

Hereinafter, the present invention will be described in detail with reference to the drawings.

〔Example〕

FIG. 1 is a block diagram showing an entire embodiment of the present invention.

In this figure, 1 is a keyboard including an alphanumeric key αN and a plurality of control keys CNTl to CNTn.

2 is a CPU, and the control unit 1.2 is composed of a logic circuit centered on a microprocessor. It is.

3 is a RAM (random access memory), which is used as an editing memory or as a temporary storage location for intermediate data required for the control operation of the CPU.

4 is a ROM (IJ-only memory) in which CPU control procedures are stored in advance.

5 is a display, and 6 is a printer.

Reference numeral 7 denotes a pass line, which supplies control signals from the CPU of each circuit device 2 and also transmits and receives data. FIG. 2 is a logic circuit diagram showing the CPU 2 shown in FIG. 1 in detail. Here, MP is a microprocessor, 14 is a buffer that stores information about the total memory capacity (i.e., the total number of bytes), 15 is a memory pointer that indicates the memory location in bytes, and 16 counts the number of strokes from the keyboard. 17 is a word counter that counts the number of words stored. In addition, 18 is a subtracter that calculates (Mx) − (Np), G1
-04 is a gate circuit, C81 to C53 are control signals for listening to these gate circuits, and DB is a display buffer.

FIG. 3 is a flowchart showing the control procedure of this embodiment.

The operation of this embodiment will be described below with reference to FIGS. 2 and 3.

First, press a specific control key to set the device to text editing mode. Then, a reset operation is performed in step P1. Here, we use the used memory capacity counter (i.e., memory pointer) shown in Figure 2.
Mp, stroke counter Sc, word counter 11I
c are respectively reset.

Here, sentences configured on RAMa are separated by an inter-word separator coat (hereinafter simply referred to as a separator) or an inter-sentence separator. Further, it is assumed that an end separator exists at the end of the sentence registered on RAM a.

In step P2, the number of bytes stored in the RAM 3 is counted. That is, each time one byte is read from the RAM 3, the memory pointer Hp is incremented by one.

In the next step P3, it is checked whether an inter-word separator or an inter-sentence separator has been read out. If it is determined in step P3 that it is not any separator, in step P6, a stroke counter S8 is incremented by one in order to count the number of keyed-in strokes. That is, in step p6, the number of keystrokes sandwiched between word separators or sentence separators is counted.

If any separator is determined in step P3, whether that separator is an inter-sentence separator or
Alternatively, it is determined whether it is an inter-word separator.

If it is determined in step P4 that it is an inter-word separator, a word counter is incremented by one in order to count the number of words in step P7.

If it is determined in step P4 that it is an inter-sentence separator, the presence or absence of an end separator is checked in step P5. The above loop is then repeated until the end separator is read out.

When the end separator is detected in step P5, the content to be displayed is selected in step P8 based on the combination of the pressed specific keys. In other words, when a key operation requests display of the remaining memory capacity, the total memory capacity is X! step pio),
Next, at step pH, the remaining memory capacity is calculated (by the subtracter 18 in FIG. 2) and displayed (step PI2). On the other hand, when the key operation requests display of the number of words and the number of strokes, the contents of the word counter We and stroke counter Sc are displayed in step P9.

〔effect〕

As explained above, according to the present invention, the storage state of the memory can be easily known by the combination of conventional control keys and character keys without adding new control keys for specific purposes. A special effect can be obtained in that not only the arrangement space can be reduced, but also the complicated operation can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an entire embodiment of the present invention, and FIG.
The figure is a logic circuit diagram showing the CPU shown in the first figure in more detail, and FIG. 3 is a 70-chart showing the control procedure of this embodiment. 1...Keyboard, 2...CPU, 3...RAM, 4...ROM, 5...Display unit, 6...Printer, MP,...Microprocessor, ■4...Hz Buffer, 15...Memory pointer. I6... Stroke counter, 17... Word counter, C3l, CS2, C93, --- Control signal, 1
8...Subtractor, []B...Display eightfolder.

Claims (1)

[Scope of Claims] 1) In a character processing device equipped with a control key, a character key, a storage means, and a display means, in response to continuous pressing of a specific control key and a specific character key, the storage state in the storage means is determined. A character processing device characterized by displaying a character. 2) The character processing device according to claim 1, wherein the remaining capacity of the storage means is displayed in response to continuous pressing of the specific key. 3) The character processing device according to claim 1, wherein the number of stored words or number of keystrokes is displayed in response to continuous pressing of the specific key. 4) The character processing device according to claim 2 or 3, wherein the display is made only when a specific operation mode is set.