JPS58149554A - Electronic calculator with program - Google Patents

Abstract

PURPOSE:To allow the same instruction to function as different instructions, by switching operation processings by the same coded signal, which is read out from a program storage means, in accordance with the operation of a switching means which can be operated from the external. CONSTITUTION:Contents of a program memory PRM are inputted to a program code decoder OD, and a prescribed control signal is outputted from the decoder OD to execute them in a central controlling circuit CU. If a debug key switch DK is turned on when a stop instruction is decoded in the decoder OD in the process of this program processing, a gate G1 is turned on, and an input signal is given to a delay circuit DL, and a gate circuit G is turned on by the output signal which is outputted from the delay circuit DL after the elapse of the stop time, and the program is advanced. If the switch DK is turned off, a gate G2 is turned on, and the output of a gate G3 is issued immediately similarly to decoding of a general skip instruction SKIP, and the circuit G is turned on to advance the program. That is, the switching between the stop processing and the skip processing is controlled by the operation of the switch DK.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic desk calculator with a program (hereinafter referred to as a calculator with a program), and in particular, arithmetic processing executed based on the same coded signal stored in a program storage means. The present invention provides a calculator with a program that can be switched and controlled by operating an externally operable switching means.

In conventional programmable calculators, the arithmetic processing executed based on the instructions (coded signals) stored in the program storage means is set in one-to-one correspondence with the instructions. Met. That is, there is a one-to-one correspondence between the instructions (coded signals) stored in the program storage means and the arithmetic processing executed based on the instructions, and it is possible that a particular instruction is derived from the program storage means. Sometimes, a specific arithmetic process that corresponds one-to-one to the instruction is executed. Therefore, the arithmetic process that is executed based on the program stored in the program storage means is changed [in other cases, There was a drawback that the program had to be rewritten each time in accordance with the change.

For example, one of the instructions used in a programmable calculator is a pause instruction. A pause command is an instruction to stop arithmetic processing for a predetermined period of time based on the program, and when the pause instruction is read from the program storage means, the calculation processing is stopped for a predetermined period of time and Then, proceed to execute the next step of the program.

This pause instruction is generally used to display the progress of a program during execution, but is also useful when debugging a program written in a program storage means.

In other words, conventional program tebauging involves running Prograno one step at a time and checking whether the program has been installed correctly.
Use the above pause command to insert this pause command in several places in the program. If a program can be debugged by looking only at the arithmetic processing results at a predetermined step without checking the arithmetic processing results at all steps, the program can also be debugged using this method.

According to this method, the program can be executed quickly until the pause instruction is read, so that debugging time can be shortened. .

However, the pause instruction used for the purpose of shortening debugging time becomes unnecessary once the program is completed, and conversely becomes a cause of prolonging the program execution time.

In conventional programmable calculators, in such cases,
It was necessary to accept the fact that the program execution time would be long, or else it was necessary to perform a very troublesome operation of deleting the above-mentioned pause commands one by one (that is, rewriting the program).

The present invention has been made in an attempt to solve these problems in conventional programmable calculators, and its basic technical idea is as follows.

That is, the programmable calculator of the present invention includes an externally operable switching means and an arithmetic processing executed based on instructions (encoded signals) read from the program storage means in response to a switching operation of the switching means. The present invention is characterized in that it is provided with a circuit for switching control, and is configured to switch and control arithmetic processing executed based on instructions read from the program storage means in accordance with the operation of the switching means.

Hereinafter, the present invention will be explained in detail based on Examples.

In the first embodiment described below, the arithmetic processing executed based on the pause instruction read from the program storage means can be controlled to be switched between the original pause processing and the skip processing using an externally operable switch. It is characterized by the fact that Here, skip processing refers to processing that immediately proceeds to the next step of the program after all arithmetic processing has been executed.

According to this embodiment, by switching the switch, a pause instruction incorporated in a program can be made to function as a pause instruction during debugging and as a skip instruction during automatic program execution. It turns out that problems like these can be solved.

FIG. 1 is a block diagram showing a schematic configuration of an internal circuit in the first embodiment.

In the figure, KB is a keyboard that includes keys such as numeric keys and function keys, EC is an encoder circuit that outputs a coded signal corresponding to the operation key when a key on the keyboard KB is operated, and PRM is the encoder circuit mentioned above. A program memory in which circuit output signals are sequentially stored, WC is a write control circuit for the program memory PRM, and AC is a PRM
address register, ADC is address decoder, AD
Adder "1", CLC is program clear key PC
A circuit that sets the contents of AC to the initial state (content specified in the first step of PRM) based on the operation of L, ■ is a gate circuit that is turned on by the program progress signal NE, and when the gate circuit ■ is turned on, The contents of address register AC are counted up by "1" by adder AD. That is, the program execution advances to the next step. OD is a program code decoder, CU is a central control circuit, and DL is a delay circuit, which outputs an output signal after a predetermined period of time when an input signal is supplied.

It is assumed that a desired program is stored in the program memory PRM. That is, - membrane control commands (e.g. arithmetic commands) ops, pause commands PAUSE, jump commands, commands S
Contains KIP, end command END, etc.

Before checking, debugging, or automatically running a program, first click the program button 7 key PCL.
The contents of the address register AC are set to the contents designated by the first step, and the program command is set as RO and outputted as 7. Then, this is decoded by the program code decoder OD, and if it is a film control command OPS, the central control circuit CU executes a predetermined control, and at the end of the process, a program progress signal NE is sent.
to occur. , when NE occurs, the gate circuit (6 = on 1-2, the output of adder AD is sent to address register AC
to return to. At this time, since the contents of AC and "1" are given to the two inputs of AD, AC+1→AC, that is, AC is counted up by "1".

As a result, the second step of the program memory is selected, so that the contents of the second step are input to the program code decoder OD, which outputs a predetermined control signal to be executed by the central control circuit CU.

In the process of program processing in this way, when a pause command is decoded by the program code decoder OD, if the debug key switch DK is turned on, the AND gate G+ is turned on and the signal is input to the delay circuit DL. A signal is given, and the DL output is output after the pause time has elapsed. The above-mentioned gate circuit O is turned on by the output signal of this DL to proceed with the program. That is, the original operation of the pause command is executed.

If the deba soge key switch DK is turned off, the ant game) G2 is turned on, so the or gate G
The output of 3 is immediately output, which turns on the gate circuit 3 and allows the program to proceed to the next step.

As described above, by switching the debug key switch DK, the arithmetic processing executed based on the pause command PAUSE can be controlled to be switched between the original pause processing and skip processing.
By turning on the DK, you can memorize the program using the pause command, and when automatically executing the program, by turning off the DK, even if the pause command is read, the skip operation will only be performed. The program execution time does not become long.

However, in a configuration such as the first embodiment in which all pause instructions become equivalent to skip instructions by switching the switch DK, there is a risk that the original function of the pause instructions may be impaired. Therefore, as a means to solve this problem, a pause command, a PAUSEI command, and a PAUSEI command are used.
It is conceivable to provide two types of n instructions, the PAUSE n instruction being the original pause instruction, and the PAUSE ■ instruction being an instruction that can be switched between a pause instruction and a skip instruction by switching a switch.

A second embodiment configured in this manner will be described next.

FIG. 2 is a block diagram showing the configuration of the second embodiment.

Components corresponding to the configuration of the first embodiment are denoted by the same reference numerals, and a description thereof will be omitted.

When the program code decoder OD decodes the skip command 5KIP, a signal is applied to the OR gate G3, and the output signal of the OR gate G3 turns on the gate circuit ■, so the skip process is executed. Instruction PA
When the USEI is decoded, an input signal is applied to the delay circuit DL via G4, and after a predetermined time, an output signal from DL is output, and this signal turns on the gate circuit @, so that the pause process is executed. Ru.

Next, a description will be given of when the pause command PAUSE If is decoded. At this time, if the switch DK is on, the AND gate G1 is on, and the output signal of the AND gate G1 is applied to the delay circuit DL via the OR gate G4, so that the pause process is executed. On the other hand, if the switch DK is off, the ant game) G2 is turned on, the ant game) G2 outputs the output signal 1~, and this signal is given to the or game) Ga, so that the skip process is executed.

A pause instruction PAUSEII may be inserted in a step that requires a pause only when debugging a program, and a pause instruction PAUSEI may be inserted in a step that requires a pause even during automatic program execution.

In the embodiment described above, the pause command can be used both as the original pause command and as a skip command by switching the externally operable switch DK. An embodiment may also be considered in which the pause command can be controlled to be switched between a pause command and a print command.

As described above in detail, the programmable calculator of the present invention has an externally operable switching means and a command of the same coded signal read out from the program storage means in response to the operation of the switching means. Since the method is characterized by having a means for switching and controlling the arithmetic processing to be executed, the same programmed command can be made to act as a different command according to the switching of the switch means, which is different from the conventional method. In the case described in the example explanation section, it is no longer necessary to delete or change programmed commands one by one, which greatly increases the convenience of using a programmable calculator. can be done.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the structure of a first embodiment of the invention, and FIG. 2 is a block diagram showing the structure of a second embodiment of the invention. (also code K); keyboard, EC: encoder circuit, P
RM Niprogram memory, WC Niprogram memory PR
M write control circuit, AC near address register, AD:
Adder, ADC near address decoder, ■Gate circuit, o
D Niprogram code decoder, CU: central control circuit, D
K: Debug key isochi, G+ + G2: AND gate, G3, G4 NOR gate, DL: Delay circuit, NE program progress signal. Agent Patent attorney Aihiko Fukushi (and 2 others) Procedural amendment (method) 1. Indication of the case Patent application No. 57-200863 2. Name of the invention: Electronic desktop calculator with program 3. Person making the amendment: Relationship with the case: Patent applicant 4: Agent Address: 22 Nagaike-cho, Abeno-ku, Inusaka-shi, 545 Taku No. 22, March 29, 1982, 6, Drawing subject to amendment 7 Contents of amendment: Engraving of the drawing (no change in content) Above 340-

Claims (1)

[Scope of Claims] 1. A keyboard having a plurality of keys for inputting numerical information, arithmetic control instruction information, etc., and encoding for outputting a coded signal corresponding to the operation key based on the operation of the keys of the keyboard. signal output means; program storage means for sequentially storing the coded signals output from the coded signal output means; and derivation means for sequentially deriving the coded signals from the program storage means based on a program progress signal. , an electronic desk divider with a program, comprising: arithmetic processing means for executing predetermined arithmetic processing corresponding to the derived coded signal; an externally operable switching means; and an operation of the switching means. In response to the coded signal, the arithmetic processing executed based on the same coded signal derived from the program storage means is performed on the coded signal. means for setting and controlling one of a plurality of arithmetic processes set in the program storage means, and the arithmetic processes based on the same coded signal stored in the program storage means are switched by operation of an externally operable switching means. An electronic desktop calculator with a program, which is characterized by being controllable.