JPH059821B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to electronic devices such as adders and calculators that mainly have arithmetic functions such as addition and subtraction and have a built-in printing device, and in particular improves their expressive capabilities such as comment printing and result printing. This is how it was done.

In conventional electronic equipment such as adders and calculators that have printing functions, comments are printed using the non-address mark #, and calculation results are clearly indicated by underlining or spaces. It was not possible to change the printing color of , or change the printing color of the item part or symbol part of the calculation result.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an electronic device having a function that allows a user to create the arrangement and configuration of print colors as desired in order to improve the expressive ability of comments, result printing, etc. With the goal.

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

FIG. 1 is a block diagram showing an adder as an embodiment of an electronic device according to the present invention. Here, on the keyboard KB, there are numeric keys from □0 to □9, □+,
Function keys □-, □=, a decimal point key □・, a minus sign key 〓〓, and a specific key □N for carrying out the present invention are provided.

The CPU is a control unit that receives various key input signals from the keyboard KB, executes calculations specified by the numeric keys and function keys using the built-in calculation register RA and counter CT1, and prints the calculation results. It is stored in register PR and then transmitted to the printing device to generate a printing command. In addition, in order to select one of the random access memory RAMs to be described later, the built-in counter CT1 is used to select the memory.
Memorize each RAM individual number, i.e. address, and
Specify RAM.

In addition, the control unit CPU has a built-in read-only storage ROM that stores a group of microinstructions for executing the present invention, and executes the group of microinstructions by a sequential control circuit composed of a gate circuit or the like. .

In random access memory RAM,
By specifying an individual number (or address) with the control unit CPU, the contents of the specified register can be read or written. The random access memory RAM is equipped with an arithmetic storage register _R0 controlled by the control unit CPU to assist in the execution of each operation such as addition and subtraction, and a digit number storage register R0 for carrying out the present invention.
1, R2, R3...Rx, the control unit
When the print contents stored in the print register PA in the CPU are transferred to the printing device PRT and printed, the control unit CPU controls the print color to change according to the data in the digit storage registers R1 to Rx. do.

The printing device PRT is a device that executes printing according to the contents of the printing register PR in the CPU and prints the progress and results of calculations, and prints while changing the printing color to any desired value as described below.

Next, FIG. 2 shows the flow of a program stored in the memory ROM for controlling the adder shown in FIG. This flow will be explained by taking as an example the case where the key operations shown in FIG. 3 are executed.

First, when the □N key is pressed in step 1 in Figure 3, a calculation start signal is generated from the keyboard KB, triggering the control unit CPU, and
Start executing the flow shown in the diagram.

In step S1 of FIG. 2, it is determined whether the □N key has been pressed. If the □N key has been pressed, the counter CT1 is cleared in step S2. As a result, the counter CT1 that specifies the number (or address) of the memory RAM stores address 1 and selects the corresponding RAM register R1.

In step 2 of Fig. 2, when the numeric keys □1 and □2 are pressed and then the decimal point key □・, the process passes through steps S3 and S4 in Fig. 2 and goes to the next step S5.
Then, the number data “12” is random access memory
Transferred to the digit storage register in RAM. Here, since the counter CT1 selects the digit number storage register R1, the above set number data "12" is transferred to this digit number storage register R1.

In step S6 of FIG. 2, the contents of the counter CT1 are incremented by +1.

In this case, the counter value so far is 1, and the digit storage register R1 in the random access memory RAM is selected, but by adding +1, the counter value becomes 2, and the next register R2 is selected.
Select.

In step 3 of Figure 3, the numeric key □4 is pressed,
Next, when the decimal point key □・ is pressed, the determination of steps S7 and S3 in FIG.
is transferred to random access memory RAM.

Here, since the register R2 is selected by the counter CT1, the above set number data "4" is transferred to this register R2. Then step
In S6, the contents of the counter CT1 are incremented by +1, and the counter value becomes "3". Therefore, register R3 in the random access memory RAM is selected by counter CT1.

In step 4 of Figure 3, the numeric key □3 is pressed,
Next, when the decimal point key □・ is pressed, the determination in steps S7 and S3 in FIG. 2 is passed, and the set number data "3" is transferred to the random access memory RAM. Here, counter CT1 selects register R3, so the above set number data "3" is this register R3.
will be forwarded to. Next, in step S6, the counter +1 is executed to add 1 to the counter data, so that the counter value becomes "4", and the register R4 in the random access memory RAM is selected by the counter CT1.

If you press the specific key □N in step 5 of Figure 3,
In the next step S8, the END code is transferred to the random access memory RAM.

Here, since counter CT1 selects register R4, the above END code is in register R4.
Transferred to 4. Next, in step S9, the counter CT1 is cleared and the register R1 is selected again.

Through steps 1 to 5 in FIG. 3 above, the contents of the random access memory RAM are as follows.

R1=1.2 R2=4 R3=3 R4=END code Next, in step 6 of Figure 3, press the numeric key □6,
When □7, □8, □9, □+ is pressed, the steps in Figure 2
After passing the determination in S10, the set number data “6789” is transferred to the calculation register AR in step S11.
Passes the next step S12 determination and moves to step S13
The data “6789” in the calculation register AR can be printed with “〓〓〓〓〓〓〓〓〓〓〓〓6789.
〓〓＋” is memorized.

Note that "〓" in printable data means a space.

Next, in step S14 of FIG. 2, it is determined whether the counter value is an odd number or not. At this time, the counter CT1 has been cleared in step S9 and has stored "1", so the counter CT1 is cleared in step S14.
In the determination, the loop on the "Yes" side is passed, and the Rx digit is printed in red in step S15. Here, Rx indicates the content of the random access memory RAM, and since the counter value is currently "1", the content of the register R1 means "12", and in step 15, 12 digits are printed in red. i.e. print data Print the part in red.

Next, in step S16, execute the counter +1,
The counter value becomes “2” and Rx is set at step S17.
Determine whether it is an END code. In this case, the counter value is “2”, so Rx=R2
Since the content of register R2 is not an END code, it passes through the “No” side loop and goes to the determination step.
In S19, it is determined whether printing has ended. At this time, since printing has not yet been completed, the process passes through the "No" side loop and returns to the determination step S14. In this step S14, it is determined whether the counter value is an odd number or not. Here, since the counter value is stored as "2" and is an even number, the loop on the "No" side is passed through, and the Rx digit is printed in black in step S20. In this case, since Rx=R2 according to the counter value, 4-digit black printing is performed in step S20. In other words, the print data The part is printed in black.

Next, in step S16, the contents of the counter are incremented by +1, and the counter value becomes "3", and in step S17, it is determined whether R is an END code or not. In this case, since the counter value is “3”, Rx=
Since the content of register R3 is not an END code, it passes through the “No” side loop and goes to the determination step.
In S19, it is determined whether printing has ended. Since printing has not yet been completed, the process passes through the "No" side loop and returns to determination step S14. This determination step S14
It is determined whether the counter value is an odd number or not. Here, the counter value is stored as "3", and since it is an odd number, it passes through the "Yes" side loop and goes to step S15.
Rx digit is printed in red. Now, Rx by counter value
Because =R3, three digits are printed in red in step S15. That is, Print the part in red.

Next, in step S16, the contents of the counter are incremented by +1, and the counter value becomes "4", and in step S17, it is determined whether Rx is an END code. At this time, since the counter value is "4", Rx = R4, and the content of R4 is the END code, so it passes through the "Yes" side loop and steps
Clear counter CT1 in S18. Next, in step S19, it is determined whether printing has ended, and since all print data has been printed at this time, the "Yes" side loop is passed through, and all processing is completed.

Therefore, according to the present invention, when step 6 in FIG. As the digits are indicated by the symbol R,
By printing in red and the lower three digits in black, it is possible to clearly indicate the scale of each three digits. Further, since the addition mark is also printed in red, it can be expressed separately from the set number data.

As described above, according to the present invention, the arrangement and configuration of printing colors can be specified in any desired form from the keyboard, so that the expressive ability of printing can be improved.

In the above embodiment, an example was explained in which printing is performed in three steps: red printing → black printing → red printing, but the printing register for red printing and the printing register for black printing are installed in the control unit. Alternatively, it may be built in the printing device, and after controlling the separation of red print data and black print data, printing may be performed in two steps: red print → black print or black print → red print.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the electronic device of the present invention, FIG. 2 is a flowchart showing an example of controlling the printing operation, and FIG. 3 is a flow chart showing an example of key operation in FIG. It is an explanatory diagram. KB...Keyboard, N...Special keys for implementing the present invention, CPU...Central control unit,
RAM...Random access memory, ROM...
Read-only storage device, CT1...Counter, AR
...Arithmetic register, PR...Print register, PRT
...Printing device, R1 to Rx...digit number storage register,
R ₀ ...Arithmetic storage register.

Claims (1)

[Scope of Claims] 1. An electronic device having at least a printing device for printing input print data, comprising a numeric key, a first specific key, and a second specific key, wherein the first specific key is If the numeric key is pressed after being pressed, the digit information of the first print color will be stored, and if the numeric key is pressed after the second specific key is pressed, the digit information of the next print color will be stored. and then, when print data is input by pressing at least the numeric key after pressing the first specific key, the printing data is alternately changed according to the stored digit information of the printing color. An electronic device characterized by having a means for printing in a printing color. 2. The electronic device according to claim 1, wherein the second specific key is a decimal point key.