JPS6315958Y2 - - Google Patents

Description

[Detailed description of the invention] This invention stores a program code indicating a predetermined calculation means in the memory, and when arbitrary numerical data is input, the program code is read out to correspond to the input numerical data. This invention relates to a programmable electronic desktop calculator with a printer that sequentially executes calculations and prints out the contents of the calculations.

Conventionally, in the program electronic desktop calculator with printer (hereinafter referred to as a program calculator), when keys are operated in sequence as shown in Figure 1 in the program setting mode, the key code corresponding to each key is changed to one step. are sequentially stored in memory as program codes. If you want to print out a list of the contents of the program code stored in this memory, operate the list print designation key provided in the input section, and as shown in Figure 1, one step per line will be printed on the recording paper. List printing is performed. However, with this type of printing format,
Numerical data that includes multiple digits, for example, numeric data ``123'' is converted to individual numeric data ``1'',
Since "2" and "3" are printed separately in one column, there is a drawback that it is difficult to visually see them as a set of numerical data.

This invention was made based on the above circumstances, and its purpose is to collect mutually related codes as one line of data when reading and printing the contents of the program code stored in the program memory. To provide a program electronic desktop calculator with a printer that can print data.

An embodiment of this invention will be described below with reference to FIGS. 2 to 7. Figure 2 shows a schematic system configuration diagram of the program calculator, with reference numeral 1 in the figure.
is a CPU, and this CPU 1 outputs an R/W signal and a chip designation signal to the input control section 2, display control section 3, print control section 4, and program memory 5 via the control bus CB, and outputs from the print control section 4. A control signal is input. Further, the CPU 1 outputs address signals to each of the control sections 2, 3, 4 and the program memory 5 via the address bus AB. Furthermore, the CPU 1 inputs data from the input buffer IN provided in the input control section 2 via the data bus DB, and also inputs data from the display buffer DI provided in the display control section 3 and the print buffer provided in the print control section 4. Data is output to each PR, and data is exchanged with the program memory 5.

The input control section 2 inputs a timing signal to the input section 6.
KP is output, and when a key operation is performed in the input unit 6, a timing signal KP is selected according to the operated key and inputted to the input buffer IN as a key input signal KI. The input section 6 includes a numeric key for inputting numerical data, a function key for specifying operation commands such as addition and multiplication, and an HLT key for specifying the stop of program operation, that is, the input position of variable data. It is equipped with a DT key that is operated when inputting date data such as "year", "month", and "day", and a list key 6a that specifies printing of a list of programmed calculation procedures.
A mode switch is provided to specify each mode of "setting" and "execution". Further, the display control section 3 outputs the digit signal DG and the segment signal SG obtained by decoding the data of the display buffer DI to the display section 7, and displays numerical data and the like on the display section 7. The print control section 4 also receives a timing signal TP sent from the print section 8 and a print buffer.
A print drive signal HD generated by matching the data in PR is sent to the print unit 8. The printing unit 8 then prints numerical data on recording paper in accordance with the print drive signal HD.

FIG. 3 is a circuit configuration diagram showing the CPU 1 in detail. In the figure, reference numeral 9 is a ROM, in which various microinstructions are stored. This ROM
9 outputs an address signal to _{the addressing circuit 10 via line l1 ,} and outputs an operation code and a next address signal specifying the next address of ROM 9 to the control circuit 11 via line l2. Then, the next address signal is transmitted to the control circuit 11.
Addresses the next microinstruction to be input into ROM 9 via line _l2 from .

The addressing circuit 10 not only specifies the address of the RAM 12, but also specifies the addresses of each of the control units 2, 3, 4 and the program memory 5 via the address bus AB, and when the address specification is completed, the line l A termination signal is output to the control circuit 11 via ₄ . Furthermore, this addressing circuit 10
The data read from RAM12 is on the line
_l5 and performs so-called index addressing.

The RAM 12 is equipped with X, Y, A, P, and C registers, and the data read from the RAM 12 is output to the arithmetic circuit 13, and is also sent to the display control unit 3 and print via the data bus DB. The data is sent to the control unit 4 and program memory 5. The arithmetic circuit 13 performs various specified arithmetic operations, and the results of these arithmetic operations are input to the RAM 12 via line _l6 .

The control circuit 11 decodes the input operation code and outputs a designation signal for designating addition or subtraction to the arithmetic circuit 13 via line _l7 . The control circuit 11 is also connected via line _l8 .
An R/W signal is output to the RAM 12, and the next address is changed according to the data input via line _l9 and the presence or absence of a carry. Furthermore, the control circuit 11
outputs a signal specifying count up or count down to the address counter in the addressing circuit 10 via line _l4 . In addition, the control circuit 11 outputs the R/W signal and the chip designation signal via the control bus CB.

Next, the operation of this invention will be explained. First, set the mode switch of the input unit 6 to the "setting" mode, and input program data by operating the numeric keys, various calculation keys, and various function keys, and the program code corresponding to each operation key is input. "1""2""3""X" ... "="
are storage areas M(0) to M designated by row addresses 0 to 17 of the program memory 5, as shown in FIG.
(17) are written sequentially. After completing a series of program settings in this manner, if the user wishes to check the settings, he or she operates the list key 6a. Then, the operation according to the flow shown in FIG. 5 is executed.

That is, in step _S1 , C of RAM 12 is
“0” is written to the register and set to the initial value. Next, proceed to step _S2 , and set P of RAM12.
“0” is written to the register and set to the initial value. Next, the process moves to step _S3 , where the program code stored in the storage area M(p) of the program memory 5 specified by the contents of the P register is
It is transferred to the A register of RAM12. Next, the process moves to step _S4 , and the contents of the P register are incremented by 1. Next, the process moves to step _S5 , where a judgment is made as to whether or not the program code stored in the A register is a code corresponding to a function key that specifies various arithmetic instructions.If it is judged as YES, the process proceeds to step _S6 . Move. At step _S6 , the function code in the A register is transferred to the lowest digit _X0 of the X register, which is _comprised of 12 digits X0 to _X11 , as shown in FIG. Next, the process moves to step _S7 , where the contents stored in the X register are transferred to the print buffer PB, where they are printed on the recording paper as one line of data in the printing section 8, after which the paper is fed by one line and the process returns to step _S3 . .

If it is determined in step _S5 that the program code in the A register is not a function code, the process moves to step _S8 , where it is determined whether the contents of the A register are codes corresponding to the HLT key that specifies the input position of variable data. It is determined whether or not, and the process moves to step _S9 where it is determined to be YES. In step _S9 ,
The character codes "H", "L", and "T" are written in digits X ₂ to X ₄ of the X register, and then the process returns to step _S3 .

If it is determined in step _S8 that the program code in the A register is not an HLT code, the process moves to step _S10 , where it is determined whether or not a code corresponding to the DT key for specifying date data is stored. This is executed, and if it is determined to be YES, the process moves to step _S11 . In step _S11 , it is determined whether the contents of the C register are "0" or not, and if it is determined to be YES, the digits _X2 to X of the X register are
The digits of _{the Y} register, _where the numerical code stored in
It is transferred as date data indicating the “year” from Y ₈ to _{Y 11} . Next, the process moves to step _S13 , where "1" is written to the C register, and the process returns to step _S3 .
If the content of the C register is not "0" in step _S11 , the process moves to step _S14 , where it is determined whether the content of the C register is "1" or not.
If YES is determined, a blanking code "15" is written in digit _Y7 of the Y register in step _S15 . Next, the process moves to step _S16 , where the numerical data stored in digits X ₂ and X ₃ of the X register are set to "month".
Digits Y ₅ and Y ₆ of the Y register as date data indicating
will be forwarded to. Then, in step _S17 , C
“2” is written to the register, and then the step
Return to _S3 . If it is determined in step _S14 that the content of the C register is not "1", step
Proceeding to _S16 , blanking code "15" is written in digit _Y4 of the Y register. Then step S ₁₉
, the numeric data of digits X _{2 and}
Transferred to Y ₂ and Y ₃ . Next, the process moves to step _S20 , and the "year", "month", and "day" stored in the Y register are read.
The date data of is transferred to the X register, after which the process returns to step _S3 .

If it is determined in step _S10 that the program code in the A register is not a DT code, the process moves to step _S21 , where a determination is made as to whether it is a numerical code or not. Move to ₂₂ . At step _S22 , the contents of the X register are incremented by one digit. Next, the process moves to step _S23 , where the numerical code in the A register is written to digit _X2 of the X register, after which the process returns to step _S3 . If it is determined in step _S21 that the content of the A register is not a numerical code, the operation based on the operation of the list print designation key 6a is terminated.

Therefore, when the list print designation key 6a is operated, steps _S1 to _P5 , _S8 , _S10 , _S21 to
S ₂₃ is executed sequentially, then steps S ₃ to S ₅ , S ₈ ,
As a result of repeating S ₁₀ , S ₂₁ to S ₂₃ twice,
Numerical codes stored in storage areas M(0) to M(2) of the program memory 5 are sequentially read out and stored in digits _X4 to _X2 of the X register. Then step
As a result of sequential execution of S ₃ to _{S 7} , the key code “X” of the multiplication key read from the storage area M(3) is written to the lowest digit _X0 of the The print data "123x" is printed on the recording paper as shown in FIG. Subsequently, steps S ₃ to _{S 5} , S ₈ , S ₉ , and S ₃ to S ₇ are sequentially executed, and as a result, the HLT data is added to the recording paper along with the key code “+” of the addition key and one line of print data “HLT + ” is printed. Next step S ₃
〜S ₅ , S ₈ , S ₁₀ , S ₂₁ 〜S ₂₃ are repeatedly executed three times, and then steps S ₃ 〜S ₅ , S ₈ , S ₁₀ 〜S ₁₃ are executed sequentially. As a result, the digit Y of the Y register Numerical code "198" for storage area M(6) to M(8) of memory 5 in ₁₁ to Y ₈
is written. Next, the numerical code "12" read from memory 5 goes to digits Y ₆ and Y ₅ , and "31" goes to digits Y 6 and Y 5.
The numerical data indicating the “year”, “month”, and “day” of these Y registers are written to Y ₃ and Y ₂ , respectively, and are then read out together with the key code “=” of the equal key as one line of print data. "1981 12 31=" is printed on the recording paper.

As explained above, according to this invention, it is determined whether the program code read from the program storage means is a function code,
The program codes from when a function code is read until the next function code are read out are sequentially stored, and when the function code is read out, the program codes are read out together with these stored program codes. Since the function code is printed as one line of data, mutually related program data are printed together on one line. Therefore, there is an advantage that the contents can be easily understood just by looking at the printed recording paper. Furthermore, there are other advantages such as less consumption of recording paper.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a conventional example of key operation and printing status, Fig. 2 is a schematic system configuration diagram showing an embodiment of this invention, Fig. 3 is a detailed circuit configuration diagram of the CPU, and Fig. 4 is a diagram showing a conventional example of key operation and printing status. Program memory storage state diagram,
Figure 5 is a flowchart, Figure 6 is an X register,
The format of the Y register, FIG. 7 is a printing state diagram. 1...CPU, 4...Print control section, 5...Program memory, 6...Input section, 6a...List key, 8...Print section.

Claims (1)

[Scope of utility model registration request] program storage means for sequentially storing key codes corresponding to numeric keys and function keys for specifying various arithmetic instructions as program codes; input means for inputting numerical data; , calculation means for sequentially reading key codes stored in the program storage means and performing calculations on the numerical data;
In a program electronic desk calculator with a printer, which is equipped with a printing means for printing calculation data calculated by the calculation means, a specific key for specifying reading of all key codes in the program storage means, and a key code storage means for sequentially storing key codes sequentially read out by operations; discriminating means for determining whether the read key code is a key code corresponding to the function key; and the function key. and printing means for printing data corresponding to the key code stored in the key code storage means as one line of data on recording paper each time the key code is read out. Desk calculator.