JPS5930158A - Electronic calculator - Google Patents

Abstract

PURPOSE:To obtain an electronic calculator which facilitate the confirmation and correction of calculation contents and is capable of longitudinal and lateral calculation, by storing a registered value in a memory and displaying memory contents during checking. CONSTITUTION:When a key S/S is turned on after the longitudinal and lateral calculation is indicated, a line counter LC and a column counter CC are set to 1, respectively and the 1st row and the 1st column are specified. Then, a numeral corresponding to the 1st row and column is inputted with a ten-key 12 and keys ''+'', ''.'', and ''='' are pressed to store the numeral in the specific area of an RAM6. Similarly, the total values corresponding to up to the ''i'' row and the (j)th column are stored in the specific area of the RAM6. Then when the key S/S is pressed, processing up to the 2nd row is carried out similarly and further, processing up to the (i)th row and the (j)th column is performed successively. Then, data in the (i) rows and (j) columns are displayed, one by one, on a display device 13 with a readout key to check the input data conveniently.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to an electronic desktop calculator that is capable of performing vertical and horizontal calculations, and in which the contents of the calculations can be easily verified.

In this type of electronic desktop calculator, the vertical and horizontal calculations automatically calculate the vertical hand by calculating the horizontal hand. This calculation function allows efficient calculations without unnecessary key operations.
If you make an incorrect number during the calculation, you will end up with an incorrect total not only for the horizontal hand but also for the vertical hand. In conventional electronic calculators of this type, when such errors are to be corrected, it is basically necessary to start over from the beginning.

This invention was made in order to eliminate the two consecutive drawbacks, and by storing the entered values in memory and displaying the memory contents at the time of verification, the calculation contents can be changed. The purpose of this invention is to provide an electronic desktop calculator that allows easy confirmation and correction.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a CPU (Central Processing Unit) of an electronic computer according to the present invention; 2 is a clock pulse generator for PU 1; 3 is a ROM that stores various programs; 4 is a program counter, 5-1.5-2
6 is a stack counter, 6 is a RAM that stores various input data and calculation result data, 7 is a data pointer,
8 is an accumulator, 9 is a logic operation unit, 10 is an input port, and Jl is an output port. Reference numeral 12 denotes a keyboard for inputting data and various calculation commands, etc., including a numeric keypad for inputting numerical values, a key for four arithmetic division operations, and 1 vertical/horizontal calculation instruction keys. It is equipped with S/S keys to operate, keys at the end to instruct the cover during vertical and horizontal calculations, etc. It is also equipped with various keys necessary for other known electronic desktop calculators.

J3 is a display device that displays input data, calculated data, etc. numerically, and 14 is a printer.

The ROM 2 stores a program for a known electronic desktop calculator and an aspect/width meter program, as well as a program for executing the aspect/width division according to the present invention shown in FIGS. 2 to 7.

Further, the RAM 6 has an area for storing data necessary for various calculations including the four known arithmetic functions, and is also provided with various areas for storing input data for the length and width meter, horizontal needles, and vertical divisions.

The electronic desktop divider shown in Fig. 1 reads the keys as shown in Fig. 2 according to the program stored in ROM 2, and if there is human power, the data of each input key can be read. If there is no key human power, display processing will be performed.

When calculating length and width, as shown in Table 1, turn on the start/stop key S/S at the beginning of the number setting in the first row, and input the numerical values in each column of the first row. In the example of Table 1, there are 5 columns, and the numerical value is 10,20°30 + 40.50. Each time you input a value, press the ± key, input the value at the end of the first row, that is, the fifth column, use the keys to calculate the division of that row, or the horizontal needle, and then return to S/ Turn on the S key and set the number of columns.

Next, data from the second row onward is input in column order for each row.

In this case, if you input up to the fifth column, the horizontal needle in that row will be calculated.

After inputting all the data for the vertical and horizontal meter, press the last key and the vertical and horizontal needles of each column will be printed out in sequence.

FIG. 3 shows the processing when the S/S key is pressed on the vertical and horizontal meter. In FIG. 3, Fl is a flag (hereinafter referred to as SS flag F1) indicating that it is the setting mode of line 1 (first row).
That's what it means. ), LC represents a line counter that counts input row numbers, CC represents a column counter that counts input column numbers, and CCD represents a column number setting counter.

SS if the S/S key is pressed first when calculating vertical and horizontal cuts
Flag F1 is set, and counters LC and CC are initialized (steps n1-n2(3)).

If the S/S key is pressed after setting the first line, SS
The flag F1 is reset, the line counter is counted up, the column number is set to C1), and the column counter is initialized (n□-+ n4-+ n5).
→n6-n7). After that, print the line number.

FIG. 4 shows the processing when the oyster is pressed. X
is a number register, M(,) is a memory area for storing input numerical data, and M(CG.

tC) is the storage content of the area that stores data in the CC column of the LC row, and M (0, LC) is the total of the I-C rows (
Contents of the area that stores the horizontal needle), M (CG, 0)
indicate the contents of the area that stores the total (vertical needle) of the CC column. These storage areas are provided in the RAM 5 as appropriate.

When the ± key is depressed, the contents of the X register are input to a predetermined area of RAM 6 and added to the horizontal needle of the currently input row LC. Also, it is added to the vertical needle of the column CC which is currently [manpower]7 (steps O1→02→03).

Furthermore, the column counter CC and the number X are printed, and the column counter CC is counted up in preparation for the next input (steps 04→05).

If the SS flag ``1'' is reset, that is, the setting mode is not in effect, it is determined whether or not the required columns have been filled. If it is a CG-CCD, that is, if the input column is the last column, the horizontal needle of the currently input row is input to the number register.

The data is displayed on the display device 13. Furthermore, the contents of the column counter CC and number register X are printed by the printer 14, and the line counter LC is counted up to print the number of lines. Also, the number of columns is initialized. −
-5゛ (Step 06→07...→01
2).

FIG. 5 shows the processing when the east key is pressed. In FIG. 5, i and CD represent line input number counters, and M (0, 0) represents the contents of the memory area that stores the total. First, if it is in the setting mode, the horizontal needle or the number register X is input, and the column number and the contents of X are printed (
Steps P1→P2→1F3). If not in setting mode, set the current number of lines T-C to the line input number counter LCI)
Set to . Next, input the vertical division into the number register
H → P7-...). After printing the vertical needles of all columns, the chorus is printed (step P12).

In this invention, as shown after step c30) in Table 1, if the read key I) is pressed, row 001° column 01
The contents from row 0059 column 06 can be output in order.

FIG. 5 shows the processing for this key operation. In Fig. 5, I''2 indicates a flag indicating that the read key D is suppressed for the second time or later (hereinafter referred to as the 2-time flag). The area that stores the needle, M (, LCD) is M
Similar to (,0), it indicates the area where the vertical needles of each column are stored. 1.
, C1 indicates a line counter, and ccl indicates a column counter.

First, move the horizontal needle of each line of M(0,) in the memory to M(CC
I), ), and input the vertical division of each column of M(,0) into the M(,i,CD) area. The total is also input into the area M (CCI), LC:I)).

When the read key is pressed for the first time, line counter ■, CI and column counter CC1 are initialized (94→95→96
), the corresponding memory contents are displayed with row and column numbers.

From the second time onwards, each row and each column are counted up sequentially.

If up to M(CC1,), LCD) is output, M(1,) is output again.
, 1) (steps 911→96). As described above, you can check the entered numerical values and calculation results.

FIG. 7 shows the processing when the correction input key is pressed. After checking the entered numbers, if you notice an error, enter the correct numbers for that row and column.
By pressing this key, the horizontal division, vertical needle, and chorus are automatically corrected.

Note that this key is invalid in the tears column (step r1.
．． r2).

``-1's Electronic Desk'' - The operation when executing the aspect ratio scale as shown in Table 2 in a calculator will be explained with reference to Table 1.

After instructing the computer to execute the aspect/width counter by operating the appropriate keys, turn on the S/S key, the SS flag I・'1 is set, and the line counter LC and column counter CC are set to "1". ” in the first row and column. The content rlJ of the line counter LC is read out and displayed on the display device 13 and printer 14 to indicate that it is the first line.

Table 2 Next, input the number "10" in the first row and first column using the numeric keypad 12 and press the key.
0'' is stored in register X, and the contents of register X are stored in a predetermined area of RAM6.

This numerical value "10" is displayed on the display device 13, and the printer 14 prints out that it is the first column. (See table 1, schedule (2)) -m-' Then, "1" is added to the content of the column counter CC to make the content "2". Then the third
In step 06 of the figure, the SS flag ■Pa1 is determined.

In this case, since the SSS placket has been reset, proceed to step 07, check that the contents of the column counter CC and the contents of the column number setting counter CCI) match, and check the CC''8C
1), proceed to the next appropriate process.

Next, when the number "20" in the first row, second column is input and the key is pressed, the total "rlo+20-30" for that row is calculated in steps 01 to 03 of FIG. 5 by the same action. This "30" is stored in a predetermined area of RAM. At this time, the column counter CC becomes "3".
(Step 05 in FIG. 4) - In the same manner, the horizontal needle of the first row is calculated as each column of the first row is input, and 11'' is added to the column counter CC.

Then, for example, if you press the "" key after inputting up to the 1st row and 5th column, the process proceeds to the program shown in FIG.
is displayed on the first row and sixth column of the display device 13 and the printer 1-4, and is printed. Also, column counter CC has rl
J is added, and the content becomes "7". (Steps P2, P3, p4) Next, when the S/S key is pressed, the process starts on the second line. By suppressing the S/S key,
The program in FIG. 3 is selected again, the SS flag F1 is reset (step n4), and the line counters I, C
Add "1" to "2". (Step f]5)
Then, in step n6, from the contents of the column counter CC,
1" is subtracted to obtain "6", and this "6" is set in the column number setting counter (CCI). Next, set the column counter CC to “
1", the line counter ■, C's own line "2" is printed and displayed.

Then, when you input the number "20" in the first column of the second row, that number is written to the number register X, and
"20" in the area corresponding to the second row and first column of RAM5
is written. Then, by pressing the key,
The program shown in Figure 4 is selected. In this case, steps 01 to 05 are the same as in the case of the first line described above, but in step 06, the SS flux F'l has been reset, so the process advances to step 07, and the contents of the column counter CC are is the content of the column number setting counter (CCI)
6" is determined. In this case, the input is for the first column, and the content of the column counter OC is "2", so proceed to step 07 to the NO side and enter the value "2".
0" is displayed and printed in preparation for the next input procedure.

Thereafter, the same operation is performed until the data of the 2nd row and 5th column is input. When the data of the 2nd row and 5th column is input, the content of the column counter CC becomes "6". If YES is determined in step 07, proceed to step 08,
Total value of input data up to the 5th column of the 2nd row r200J
is read from a predetermined area of the RAM and sent to the numeric register X.

This numerical value r200J is then displayed and printed.

Next, in step 010, the month is added to the line counter LC and its contents are set to "3".

Furthermore, if the third and fourth rows are manually entered in the same manner, and the numerical value in the fifth column is input for each row, the total for that row is automatically displayed and printed. After inputting the data "80" in the fifth column of the fourth row, the program shown in FIG. 5 is selected by pressing the last key.

In this case, the SS flag F1 has been reset, so
Proceeding to step P5, further step 7'r'6 sets the column counter CC to 1, and below Stella 7'1) 7 to P
The total value for each column, that is, the vertical needle, is divided by lo, and in step P12, the total value r900J for all columns is displayed and printed.

When it is desired to check the input data of the vertical and horizontal hands, the program shown in FIG. 6 is selected by pressing the read key (■). Then, in step 91, the total value for each row is stored in a storage area M (CCI) for each row.

1 to LCDI), and in step 92,
Storage area M(l~CCI)-
1, LCI)), and in step 93, the total set is stored in the storage area M (CCD.

L CI)).

When the read key is pressed once, the 2nd time flag I/2 has been reset, so the determination in step 94 is NO. Then, after the flag I·'2 is set twice in step q5, the line counters i, c1 and column counter CC1 are each set to 1, and the first column and first row stored in the storage area M (CG, LC) Reads the input data, displays it, and prints it. Next, when the read key D is pressed, YES is determined in step 94, the process advances to step q8, adds "1" to the column counter cc1 to designate the second column, and advances to step q9, where the current column is Determine whether it is the last column at the time of input. If the determination is NO, the process proceeds to step q7, where the data in the first row of the second column is read out from the storage area M (CCI, I, c2), displayed, and printed.

When the read key l) is further pressed, step 98 occurs.

q9. By repeating step q7, the data in the second row of the second column is displayed and printed.

After the data in the first row of the fifth column is read out in the same way as above, when the read key D is further pressed, the content of the column counter CC1 becomes "6" and the horizontal division of the first row is memorized. It is read out from area M (CCD, 1, LcD-1), displayed, and printed.

When the read key D is further pressed, the column counter CCI
The content of is "7", and YES is determined in step 99, and the process proceeds to step 910, in which the contents of line counters r and c1 are incremented by one to specify the second line. Read the data from the column again and display it.

The above operation is repeated each time the read key is pressed to read and display data in row i and column j one by one. When the data in the 4th row and 5th column is read, step 911 returns YE.
S is determined, the line counter LCI and column counter CC1 are each set to "1", and data is read from the first row and first column again. In this way, input data in each row and each column in the vertical and horizontal directions can be sequentially read out, which is convenient for data checking.

When the correction input key is pressed, the program shown in FIG. 7 is selected, and data in each row and each column can be corrected individually.

As described in detail below, the present invention provides an electronic desk calculator that temporarily stores input data for a target calculation, for example, calculation of vertical and horizontal hands, and reads the input data for a desired calculation step by operating a read key. Since a means for reading out the data (in the above example, data in the i-th row and j-th column) is provided, it becomes easy to check and detect errors in this type of calculation.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the invention, and FIGS. 2 to 7 are flow charts showing one embodiment of the invention. 1...CPU 3-ROM6...RAM
12...Keyboard 13...Display device
14...Printer Uf;

Claims (1)

[Claims] (1) After executing the target calculation, when reconfirming the calculation contents, recall the memory contents corresponding to each calculation step and output the recalled memory contents together with information representing the calculation step position. Electronic % type % with a characteristic verification function