JPH0537314Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a programmable small electronic calculator.

[Prior Art and its Problems] Generally, in a programmable small electronic calculator such as a pocket computer, it is possible to input a comment text along with commands such as REM into the program. Here, R.E.M.
The command differs from other commands in that it has no effect on program execution, and
All data written after the REM command is considered a comment text, and this comment text was inserted to help the operator quickly understand what the program is about when checking the program list. It is an inserted sentence. However, in this type of programmable small electronic calculator, the annotation text can only be seen in the program list and cannot be seen elsewhere, and as a result, when there are multiple input programs, In some cases, there is a drawback that it is not possible to confirm whether or not the specified program is the desired program.

[Purpose of the invention] This invention was made against the background of the above-mentioned circumstances, and its purpose is to create a programmable small electronic device that can check annotations added to the currently running program while the program is running. Our goal is to provide a formula calculator.

[Summary of the invention] In order to achieve the above-mentioned purpose, the gist of this invention is to display an annotation text attached to the currently running program during program execution when a specific key is pressed. .

[Example] This invention will be specifically described below based on an example shown in the drawings. Note that this embodiment shows an example in which the present invention is applied to a pocket computer capable of executing program calculations.

Configuration Figure 2 is a basic block circuit diagram of this pocket computer. 1 in the figure is the input section of this computer, and on the keyboard of this input section 1 are the alphanumeric keys normally provided.
KA, numerical key KB, four arithmetic calculation keys, function key,
Function keys such as the program start key that specify the start of execution of a pre-entered program
In addition to KC, especially in this example, there is a help key.
KD is provided. In this case, the help key
KD is a key operated to display an annotation added to the currently running program.
Thus, key input signals outputted from the input section 1 in response to the operation keys are sent to the control section 2 and converted into key code data. The control unit 2 is a control unit in which a microprogram for system control is stored.
The configuration includes an instruction decoder and a calculation unit that decode program data from the ROM 3, and the address signal output from the control unit 2 is sent to the address control unit 4.
The address data supplied to the ROM 5, RAM 6, and display data storage section 7 are outputted, and the next address data supplied to the control ROM 3 is outputted. Further, the data signal output from the control unit 2 is transmitted to the ROM 5, RAM 6,
The control signal supplied to the display data storage section 7 and the annotation text storage section 8 and output from the control section 2 is as follows.
The data is supplied to the ROM 5, RAM 6, and display data storage section 7.

The ROM 5 has a character generator, a unit conversion table, etc., and also stores programs such as basic calculations and function calculations.According to the address data from the address control unit 4, it is read from the specified address area. The generated data is taken into the control unit 2 and is used to perform basic calculations, functional calculations, and the like. In addition, the RAM 6 has a program memory, variable memory, etc. for storing input programs, and in this embodiment, a plurality of programs (10 types) can be stored, and the corresponding program can be started by operating the program start key. It is read and executed. in this case,
Data writing and reading operations of the RAM 6 are controlled under the control of the control unit 2, and the data read from the area specified by the address according to the contents of the address control unit 4 is taken into the control unit 2, and then Execute the corresponding program calculation.
In this case, the control unit 2 extracts the annotation text attached to the currently running program, transfers and stores this annotation text to the annotation text storage unit 8, and also presses the help key.
HELP key signal (high level) when operating the KD
is output as a display switching signal. Annotation sentence storage section 8
is used to store annotations added to the currently running program during program execution, and the latest annotation is stored by memorizing the annotations that are sequentially transferred from RAM6 as the program progresses. . Note that the reading and writing operations of the annotation text storage section 8 are controlled in accordance with the read/write signal R/W from the control section 2. The display data storage section 7 is a display buffer that temporarily stores input data and calculation results from the control section 2, and its contents are sent to the display section 9 via the gate circuit G1. The display section 9 has a dot matrix type liquid crystal display panel, and receives display data supplied from the display data storage section 7 via the gate circuit G1 and from the annotation text storage section 8 via the gate circuit G2. Display data is switched and displayed. Note that the HELP key signal is inputted from the control unit 2 as a gate control signal to the gate circuits G1 and G2, and is opened when the gate control signal is at a high level. The signal is input to the gate circuit G2 via the inverter 10, and the signal is directly input to the gate circuit G2.

Operation Figure 2 shows the contents of program 1 stored in RAM6 in advance, and the first sentence number (line number)
The sentence input corresponding to "10" is a comment indicating the calculation formula of this program 1, and before this comment "2" is a comment to indicate that the data that follows is a comment. The identification symbol “′” is attached. That is, in this embodiment, a comment text is input following the identification symbol "'". For example, in response to the next INPUT sentence with sentence number "20", Annotation “ax ² + bx
+c=0" is added. Additionally, an identification symbol "'" and a comment "Kotae..." are added corresponding to the PRINT sentence with sentence number "50".

FIG. 3 shows an example of a display corresponding to a key operation when executing the program 1 described above. First, when this program 1 is specified, the smallest statement number, that is, the statement with statement number "10", is stored in RAM6.
The data is read from and received by the control unit 2. In this case, the control unit 2 adds an identification symbol “′” to the statement number “10”.
When it is detected that the following sentence is added, it is determined that the following sentence is a comment sentence, and this comment sentence is transferred to the comment sentence storage section 8. At this time, when the help key KD is operated, the control unit 2 sends a message according to the operation.
HELP key signal is output. Therefore, the gate circuit G1 is closed while the gate circuit G2 is opened, so that the contents of the annotation text storage section 8 are sent to the display section 9 via the gate circuit G2, as shown in FIG. An annotation with sentence number "10" is displayed in response to the operation of the help key KD. This makes it possible to confirm that program 1 is a program for calculating quadratic equations. However,
When you release the help key KD, HELP
Since the key signal becomes low level, the gate circuit G2 is closed, and the gate circuit G1 is opened, so the contents of the display data storage section 7 are sent to the display section 9 via the gate circuit G1. . As a result, the annotation text is displayed while the help key KD is pressed, and when the display disappears, the contents of the display data storage section 7 are switched and displayed. Since the calculation results are still stored, the screen returns to the display.

In the RUN mode, when the equal key is operated, the currently designated program 1 is started to be executed.

That is, when the program 1 starts executing, first, the INPUT statement with statement number "20" is read from the RAM 6 and sent to the control unit 2. As a result, the control unit 2 executes the INPUT statement and transfers the corresponding display data to the display data storage unit 7, and also stores the data of the next sentence in the annotation text memory upon detection of the next identification symbol "'". Transfer to Department 8. Here, when the equal key is operated, the HELP key signal output from the control unit 2 is at a low level, and therefore,
While gate circuit G1 is opened, gate circuit G
2 is closed, the contents of the display data storage section 7 are displayed on the display section 9. Now, a "?" symbol is displayed following the variable display "a" to instruct data input for variable name A, but if it is assumed that the help key KD is operated before inputting this variable, The contents of the annotation sentence storage section 8 are switched and displayed on the display section 9 (see FIG. 3). With this, it is possible to confirm what the program currently being executed is related to by displaying its calculation formula. When the help key KD is released, the display returns to the state before the help key KD was operated.

Now, if you operate the equal key after setting variable a according to the input instructions above, the INPUT statement with statement number "30" will be executed next, so that variable will be displayed on display 9. A “?” symbol is displayed following “b”. Then, after setting the variable b, when the equal key is operated, the next INPUT statement with statement number "40" is executed. When the variables a, b, and c of the quadratic equation are input in sequence in this way, the PRINT statement with statement number "50" is executed, and the calculation result of one of the quadratic equations (x1 = -2)
is displayed. Here, when the help key is operated, the annotation text attached to the PRINT sentence with sentence number "50" is sent from the annotation text storage section 8 to the display section 9 and displayed. Then, when the equal key is operated, the PRINT statement with statement number "60" is executed, and the other calculation result of the quadratic equation (x2 = 3) is displayed. And next, the sentence number "70"
When the GOTO statement is executed, the program returns to statement number "20".

Help key KD while running the program like this
When you operate the help key KD, the annotation added to the currently running program will be displayed while you are operating the help key KD.
The annotation statement can be viewed while the program is running. In particular, when a plurality of input programs exist, it is possible to confirm whether the specified program is the desired program by checking the annotation text corresponding to its title. Although not specifically explained in the above embodiment, it goes without saying that annotations are displayed when the program list is displayed.

[Effects of the invention] As explained in detail above, this invention displays annotations attached to the currently running program during program execution when keys are pressed. This has effects such as being able to check annotations added to a program.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, Fig. 1 is a basic block circuit diagram of a programmable small electronic calculator to which this invention is applied, Fig. 2 shows an example program, and Fig. 3 shows the above program. FIG. 7 is a diagram showing display states according to key operations during execution of an example. 1...Program, 2...Control unit, 3...Control
ROM, 4... Address control section, 5... ROM,
6...RAM, 7...display data storage section, 8...
Annotation sentence storage section, 9...Display section.

Claims (1)

[Claims for Utility Model Registration] An input means for inputting a line program constituting a program with annotation added, a program storage means for storing the program input from the input means, and a program storage means for storing the program input from the input means; an execution means for reading and executing the program line by line; a detection means for detecting a comment added to the program when the execution means executes the program at each line number; an annotation storage means for storing a detected annotation sentence each time an annotation sentence is detected; a detection means for detecting an operation of a specific key; and a detection means for detecting an operation of a specific key by the detection means; 1. A programmable small-sized electronic calculator comprising display control means for switching the display from the display of the result of executing the program to the display of the annotation text stored in the annotation text storage means.