JPS61115162A - Small-sized electronic computer - Google Patents

Abstract

PURPOSE:To facilitate the formation of a program by displaying a variable name together with '?' if an alpha sentence written by comments except a variable does not lie in INPUT command and then displaying the alpha sentence together with '?' when an alpha sentence lies. CONSTITUTION:Prior to the execution of arithmetic processing, program data is inputted to write the prescribed program in a program RAM16. Where a numeric is inputted from the outside and (INPUT) instruction substituted for some variable is given in the program formation, (INPUT) command is set in such a format (? R) or (INPUT R) with respect to the input instruction without the alpha sentence. When the alpha sentence such as a comment is applied, a program is set in such a format as ('alpha sentence=' R). Thus contents of an input request can be easily found, thereby preventing an errone ous input. In case of inputting the alpha sentence, prescribed marks such as '?' and a key operation of 'INPUT' instruction, etc., are unnecessary, whereby a program is shortened, whose contents become easy to understand, and the formation of a program is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a small electronic calculator with a program function.

[Prior Art and its Problems] Ba5ic is generally used as a programming language in small electronic computers equipped with a program function. In this type of small electronic calculator, there are the following display methods as commands that request input from the outside.

(a> When executing the rlNPUTJ command that inputs a numerical value from the outside and assigns it to a certain variable, for example, when executing a command such as rlo INPUT RJ, only a mark requesting input such as "?" is displayed. and waits for input in this state.

<1)) If the command in (a) above contains an alpha statement, for example, when executing an instruction such as rlo 1NPLIT "Hankei'°; Become.

However, when only the "?" mark is displayed as in (a) above, it becomes difficult to understand what is currently being input when many input commands follow. For this reason, conventionally, as shown in (b) above, an alpha sentence in which comments etc. are written is added to the command in (a), but this alpha sentence contains all the commands in (a) above. I added it before that above. Therefore, extra key operations such as rINPUTJ are required, making it troublesome to create a program.

[Object of the Invention] The present invention has been made in view of the above points, and provides a small electronic device that facilitates the creation of programs and allows easy understanding of what input is required when assigning numerical values to variables. The purpose is to provide a formula calculator.

[Summary of the Invention] The present invention provides an alpha statement in which comments other than variables are written in the rlNPUTJ instruction statement when executing an rlNPtJTJ instruction that inputs a numerical value from the outside and assigns it to a certain variable. If there is no alpha statement, the variable name is displayed with a "?" mark, and if there is an alpha statement, the alpha statement is displayed with a "?" mark.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, numeral 11 is a key input section for input requests that also functions as numeric keys, function keys, alphabet keys, kana keys, and variable keys. Equipped with keys etc. Data input from the key input section 11 is sent to the 1ilJ control section 13 via the key input buffer 12 and also to the calculation register section 14. The control section 13 gives control commands to the arithmetic register section 14 and the arithmetic section 15 according to data input from the key input section 11 .

The arithmetic register unit 14 is internally equipped with various arithmetic registers such as X, Y, 2, etc., and has a program RAM.
16, a variable register section 11, and a display section 18 are connected. The display section 18 is constructed using a dot matrix method using, for example, a liquid crystal display element, and is capable of displaying alphabetic characters, kana characters, etc. along with numerical values. The arithmetic register section 14 stores the data read from the program RAM 16 in an internal register, and then outputs the data to the arithmetic section 15 and the assignment statement judgment section 19. The assignment statement determining section 19 determines an assignment statement from among the data sent from the arithmetic register section 14 and outputs it to the control section 13 . The control unit 13 also controls the program counter 20 in accordance with key input data and the like, and specifies the address of the program RAM 16.

Next, the operation of the above embodiment will be explained. Before executing arithmetic processing, program data is inputted from the key input section 11 and a predetermined program is written into the program RAM 16. In creating this program,
When giving an rlNPUTJ command that inputs a numerical value from the outside and assigns it to a variable, set the INPUT command in the form of "? → R" or "INPUT RJ" if there is only an input command and no alpha statement. Also, when using alpha statements such as comments,
Set the program in the format of ““alpha statement=”→R”.

During arithmetic processing, the stored program is read from the program RAM 16 to the arithmetic register section 14, and the arithmetic processing is executed according to the set program. Hereinafter, the display processing operation for commands requesting external input will be explained with reference to the flowchart of FIG. 2. When the execution key is operated, the control section 13 starts the program counter 2.
0, and reads the program data stored in the program RAM 16 to the arithmetic register section 14 as shown in step A1 of FIG. The program data read into the arithmetic register section 14 is sent to the assignment statement judgment section 19, where it is judged whether or not it is an alpha statement as shown in step A2. The determination result of this assignment statement determination section 19 is sent to the control section 13. In step A2 above, if it is determined that the program data is not an alpha statement, the process proceeds to step A3, where it is determined whether it is a "?pa" mark. ” If it is not marked, proceed to step A.
4, it is determined whether or not it is "'IN P UT". If it is determined in step A4 that the command is not "INPLJT", the command does not require input from the outside, and the process proceeds to step A5 to execute other processing.

If it is determined in step A3 that the program data is a "?" mark, the process proceeds to step 80, where it is determined whether the next mark is "→゛".In step 80, " →” mark, in other words, “?” mark. If it is determined that the "→" mark is not consecutive to the "→" mark, the command does not require input from the outside, so the process proceeds to step A5 and performs other processing. Then, in step 80, a
→” mark is detected, or if the code “I N P tJ T ” is detected in step A4 above, this is a command requesting input from the outside, so the process goes to step A7 and the code “→” is detected. ” or “I N P
Processing to display the next variable R and the ? mark after ``UT'' is performed. That is, if the program read from the program RAM 16 is a command "?→R" or rlNPUT RJ that requests input from the outside as shown in FIG. 3, "R?" is displayed on the display section 18. Then, the system enters a state of waiting for key input as shown in step 88.

If it is determined in step A2 that the program data is an alpha statement, the process proceeds to step A9, where it is determined whether the next data is a "→" mark. If the next data is not marked with "→", it is not a command requesting input from the outside, so proceed to step A5 above and perform other processing.Also, in step A9 above, if the next data is marked with "→" If it is determined that it is a mark, the process proceeds to step A10, and the characters of the alpha sentence and "?" ” mark is displayed. For example, as shown in Figure 3, an instruction containing an alpha sentence is
”, the display section 18 displays “Hankey?”,
As shown in step 88, a key input waiting state is entered.

In this step A8, subsequent processing is executed by inputting numerical data based on instructions displayed on the display section 18.

In the above embodiment, the "°? Pa mark" is displayed, but the present invention is not limited to this, and other symbols may be used.

[Effects of the Invention] As detailed above, according to the present invention, when executing the rINPLJTj instruction that inputs a numerical value from the outside and assigns it to a certain variable, comments other than variables in the rINPUTJ instruction statement are If there is no alpha statement such as ``?°'', the variable name is displayed with a predetermined mark such as "? ” etc., so you can easily see what is currently being requested and prevent input errors.Also, when inputting alpha sentences, the predetermined marks such as 117 tl are displayed. Since there is no need for key operations such as "I N P U T" commands, the program is shortened and the program is short.
The content of the program becomes easier to understand and the program creation becomes easier.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a block diagram showing the circuit configuration, FIG. 2 is a flowchart showing the operation details, and FIG. 3 is an example of key operation and a display example corresponding to the key operation. FIG. 11...Key input section, 12...Key input buffer,
13... Control unit, 14... Arithmetic register unit, 15.
...Arithmetic unit, 16...Program RAM, 17...
Variable register section, 18... Display section, 19... Assignment statement judgment section, 20... Program counter.

Claims (2)

[Claims] (1) In a small electronic calculator equipped with a programming function, a means for creating a program command for assigning an external input to a variable by inputting a specific key and a variable name, and a means for assigning an external input to the variable when the program is executed. A small electronic calculator characterized by comprising means for displaying the variable name along with a predetermined mark on a display section when a program command is given. (2) In a small electronic calculator equipped with a programming function, means for creating a program instruction for assigning an external input for the alpha statement to a variable by inputting an alpha statement and a variable name; 1. A small-sized electronic calculator comprising means for displaying the alpha statement on a display unit together with a predetermined mark when a program instruction to substitute an external input into is given.