JPH0425984A - General purpose logical unit - Google Patents

Abstract

PURPOSE:To deal with from binary logic to multi-level logic by combining a maximum value selecting functional element, a minimum value selecting functional element, a complementing functional element, a counting functional element, and a comparing functional element. CONSTITUTION:When all the input signals of starting terminal functional elements are 0.0, the output signal 11x, 12x, 13x, 14x, 15x of each starting terminal functional element 11, 12, 13, 14, 15 is 0.0, and similarly, the output signals of the functional elements 16, 17, 18 become 0.0 as well. When the input signal 15a changes from 0.0 to 0.3, the functional element 15 acts as the maximum value selecting functional element, and even if the input signal 15b of the other side is 0.0, the signal 0.3 of a larger side is outputted as the output signal 15x. Similarly, since the input signal 15x of the maximum value selecting functional element 17 changes to 0.3, the output signal 17x changes to 0.3, and further, the output signal 18x too becomes 0.3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a general-purpose logic device capable of performing multi-value logic as well as binary logic of true and false.

[Background Art] In recent years, as equipment has become more sophisticated, the need for high-performance logic devices has increased. FIG. 2 shows an example of such a conventional logic device, and shows (1a) and (1
b), logical product (1) with (1c) as input, and (2a)
, (2b), (2c) and (3a), (3b), (3
Logical sums (2) and (3) with c) as inputs are combined by logical product (6), and (4a), (
Logical product (4) with input 4b), (5a), (5b
) is connected by a logical sum (7). The result of the operation of the logical sum (8) using the output (6X) of the logical product (6) and the output (7X) of the logical sum (7) as inputs is outputted to the output (8x).

Next, the operation of the above configuration will be explained.

When inputs (4a) and (4b) are true, the output (4x) of AND (4) is true, and the input (4x) of OR (7) is true. Therefore, since the output (7x) of the logical sum (7) becomes true, the input (7x) of the logical sum (8) also becomes true, and the output (8X) of the logical sum (8) becomes true. Conventionally, operations for clarifying the history of calculations have been carried out by indicating the functional elements (8), (7), and (4) for which the true value has been obtained.

[Problems to be Solved by the Invention] Since the conventional general-purpose logic device is configured as described above, it can only handle binary logic of true and false, and cannot handle multi-valued logic. In addition, the calculation history must be interpreted by artificially comparing the function of the functional element for which the true output has been obtained, which poses the problem of complicated and time-consuming operations.

Therefore, there is a problem that the above problems must be solved.

Purpose of the invention This invention was made to solve the above problems,
It is an object of the present invention to provide a general-purpose logic device that can handle not only binary logic but also multi-valued logic and can efficiently interpret the history of logical operations.

[Means for determining the problem] The general-purpose logic device according to the present invention includes a maximum value selection functional element, a minimum value selection functional element, a complement functional element, a counting functional element,
and a binary and multi-value logic operation mechanism consisting of any combination of comparison functional elements. The input and output of each functional element are associated with a function name, and the preceding functional element that outputs a value that matches the output signal of the terminal functional element is searched from the terminal functional element side to the starting functional element side. The function name of each functional element that outputs a value matching the output signal of the terminal functional element is sequentially output from the terminal functional element side toward the starting functional element side.

[Operation] The general-purpose logic device according to the present invention includes a minimum value selection functional element, a maximum value selection functional element, a complement functional element, a counting functional element,
and comparison functional elements are combined, and the input/output value of each functional element is 0.
, 0 to 1.0, and can perform logical operations ranging from binary logic to multivalued logic.

Further, by assigning a function name to the output of each functional element and the input signal of the starting functional element, the calculation history can be efficiently interpreted.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
The figure is a logic circuit diagram of a general-purpose logic device according to the present invention, and includes a minimum value selection functional element (11) whose inputs are (11a), (1l b), and (11c), and (12a) and (12b).
), (12C) and (13a), (13b), (13
Maximum value selection functional element (12) with each input c)
and (13) are coupled by a minimum value selection functional element (16). In addition, a minimum value selection functional element (14) whose inputs are (14a) and (1, 4b), and (15a) and (
15b) is connected to the maximum value selection functional element (15) by the maximum value selection functional element (]7). The calculation result of the maximum value selection function element (18) which inputs the output (16x) of the minimum value selection function element (16) and the output (17x) of the maximum value selection function element (17) is the output (18x).
) is configured to be output. The human output value of each of the above functional elements is configured to take an appropriate value within the range of 0.0 to 1°O.

In the situation where each functional element is combined as described above, the functional element (11), (1
2), (13), (14), and (15) are the starting end functional element, and the maximum value selection functional element (18) from which the final output signal is output is the structural alias. The other name will be called the terminal functional element. therefore,(
11) is a minimum value selection functional element, and is also called a starting end functional element as another name for its configuration. (11, a), (
llb), (1], c) are minimum value selection functional elements (11)
Similarly, (11x) represents the output signal. The same applies to other functional elements.

(llal), (11b 1), (llcl), (11
1) is the function name for the input/output signal, and each (11
g), ('1lb), (11c), and (11x). Similarly, (12a),
(12b), (13a), (13b), (], 4a
), (14b), (15a), and (15b) are the starting end functional elements (12), (13), (14), respectively.
Input signals corresponding to (15), (12x), (13x,
), (1,4x), (15x) and (], 6x
), (], 7x), and (18x) are the functional element (1
2), (13), (14), (15), (16), (1
7) and (18). Also,(
121), (131), (141), (151), (1
61), (171), and (181) are the output signals (12x), (13x), (14x), and (1,5) of each functional component.
x), (16x), (17x), (], 8x).

Next, the operation of the above configuration will be explained.

In FIG. 1, the input signal (11, a) of the starting end functional element
, (11b), (1,1c), (12a), (12b)
, (13a), (13b), (1,4a), (14
, b), (15a), and (15b) are all 0.
When it is 0, each start end functional element (11), (12), (13
), (14), (15) output signals (11,x), (1
2x), (13x), (14x), (15x) are 0.0
Similarly, the functional elements (16), (17), (18)
The output signal of is also 0.0.

When the input signal (15a) changes from 0.0 to 0.3, the functional element (15) operates as a maximum value selection functional element, and even if the other input signal (15b) is 0°0, the output The larger signal 0.3 is output as the signal (15x). Similarly, the input signal (1
5x) is 0. 3, the output signal (1
, 7x) changes to 0°3, and further the output signal (1, 8x
) is also 0. It becomes 3.

Therefore, the input/output signal (18
Function names (181), (171) (151), (15al) corresponding to x), (17x), (15x), (15a)
) is sequentially output from the end i-function element side to the start-end function element side, thereby making it possible to efficiently explain the process of the above calculation.

In the above embodiment, the input/output signal range is 0°0~1.
Although it is set to 0, this range may be a negative value and can be set arbitrarily.

In addition, the functional elements to be used are not limited to the minimum value selection functional element and the maximum value selection functional element, but also the comparison functional element,
It can be configured by any combination of binary and multi-value logic operation elements including complement function elements and counting function elements.

[Effects of the Invention] As described above, the general-purpose logic device of the present invention includes any combination of a maximum value selection function element, a minimum value selection function element, a complement function element, a counting function element, and a comparison function element, and has a terminal function. Outputs the function name associated with the input/output signal of each functional element that outputs a value that matches the output signal of the element in order from the end functional element side to the start end functional element side, and outputs the function name corresponding to the input/output signal of each of the above functional elements in order from the end functional element side to the start end functional element side, and outputs the end function from the input value of the start end functional element. With a configuration that explains the history of logical operations leading to the output value of an element, it is possible to handle from binary logic to multivalued logic, and to efficiently interpret the operation history.

[Brief explanation of the drawing]

FIG. 1 is a logic circuit diagram of one embodiment of a general-purpose logic device according to the present invention, and FIG. 2 is a logic circuit diagram of a conventional general-purpose logic device. In the figure, (11), (14), (]6) are minimum value selection functional elements, (12), (13), (15), (17), (1
8) is a maximum value selection functional element. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] It is equipped with a binary and multi-value logic operation mechanism consisting of any combination of a maximum value selection functional element, a minimum value selection functional element, a complement functional element, a counting functional element, and a comparison functional element; A function name is associated with each output, and the preceding functional element that outputs a value that matches the output signal of the terminal functional element is formed so that it can be searched from the terminal functional element side to the starting functional element side, and the terminal function A general-purpose logic device characterized in that the function name of each of the functional elements that outputs a value that matches the output signal of the element is output in order from the end functional element side to the start end functional element side.