JPH04323727A - Arithmetic processing system - Google Patents

Abstract

PURPOSE:To increase the operation speed by minimizing the conversion between an internal form and an external form. CONSTITUTION:An input processing 1 inputs data in the external form. Arithmetic processings 2, 3,...n-1 discriminate whether the conversion from the external form to the internal form is necessary or not by the flag of each data, and they perform the operation after conversion if it is necessary. An output processing (n) discriminates whether conversion from the internal form to the external form is necessary or not by the flag of each data, and data is outputted after conversion if it is necessary.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arithmetic processing method, and more particularly to an arithmetic processing method for performing arithmetic processing at high speed.

0002

[Background Art] When supporting a new internal format, conventional arithmetic processing methods do not provide a new data format, instead use a character string, convert the string to the internal format, perform the calculation, and then perform the calculation. was converted to the original string.

0003

[Problems to be Solved by the Invention] The above-mentioned conventional arithmetic processing method has the disadvantage of slow arithmetic speed because it converts from external format to internal format and from internal format to external format for each operation. have.

An object of the present invention is to provide an arithmetic processing method that can reduce the number of conversion processes and perform high-speed arithmetic processing by performing conversion processing only when necessary for arithmetic processing and output processing. .

[0005]

[Means for Solving the Problems] The arithmetic processing method of the present invention is an arithmetic processing method that performs binary operations on data that has a new internal format of a computer, which is a data format that can be operated on. an arithmetic process having a first conversion determination step of determining whether or not conversion from the external format to the internal format is required based on a flag of each data; and an output process having a second conversion determination step of determining whether or not conversion from the internal format to the external format is required based on the flag.

[0006]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a flowchart showing an embodiment of the arithmetic processing method of the present invention. As shown in FIG. 1, this embodiment includes calculation data input processing 1, calculation processing 2, 3,...
n-1, and output processing n. Input processing 1 inputs data in an external format.

FIG. 2 is a flowchart showing an example of arithmetic processing in this embodiment. As shown in Figure 2, the calculation process is
First, it is determined whether one item of data is in external format or internal format (step 21), and if it is in external format, it is converted to internal format (step 22). Next, it is similarly determined whether the two items of data are in external format or internal format, and conversion is performed if necessary (steps 23 and 24). Finally, calculation is performed (step 25).

In calculation processing 3,...n-1, when the results of previous calculation processing 2, 3, ...n-2 are used as calculation data, the calculation data is in internal format, so it is not possible to convert it from external format. No conversion process to internal format is required. Whether the data is in external format or internal format is determined by the flag at the beginning of each piece of data.

FIG. 3 is a flowchart showing an example of the output processing of this embodiment. After all calculation processing is completed, in order to output the calculation result, it must be in external format.As shown in Figure 3, it is determined whether the output data is in internal format or external format (step 31). If it is, convert it to an external format (step 32) and output it (step 33).
.

[0011]

[Effect of the invention] In the calculation process 2 of FIG. 1, Y=(A+B), in the calculation process 3, Z=(Y×C), and in the calculation process 4,
), in the conventional method, conversion processing was performed before and after each calculation process, resulting in a total of 9
However, in the arithmetic processing method of the present invention, the conversion processing of data A, B, C from the external format to the internal format, and the conversion processing of the result X from the internal format to the external format, a total of 4 This reduces the number of conversion processes, so
This has the effect of improving calculation speed.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing an embodiment of the arithmetic processing method of the present invention.

FIG. 2 is a flowchart showing an example of arithmetic processing in this embodiment.

FIG. 3 is a flowchart showing an example of output processing in this embodiment.

[Explanation of symbols]

1 Input processing 2, 3, ~n-1 Arithmetic processing n Output processing

Claims (1)

[Claims] [Claim 1] In an arithmetic processing method that performs binary operations on data that has a new internal format of a computer that is a data format that can be operated on, an input process that inputs data in an external format that is a data format that can be displayed on a console; arithmetic processing having a first conversion determination step of determining whether or not conversion from the external format to the internal format is required based on a flag of each data; and an output process having a second conversion determination step of determining whether or not the conversion is to be performed based on the flag.