JPS59216262A - Address converting device - Google Patents

Abstract

PURPOSE:To designate easily a bank by providing a converting circuit which is converted by a logical operation of a value of a bank counter and a data inputted from the outside, and a controlling circuit for designating an operation of the converting circuit and a counter operation of the bank counter. CONSTITUTION:By an operation designating signal 17 of a controlling circuit 14, a value of a bank counter 11 is set to the bank counter 11 again after executing a logical operation of its value and a data 15 inputted from the outside by a converting circuit 13. An address counter 12 executes counting successively to a data in the first bank, and when the access of all the data in the bank has finished, the address counter 12 outputs a carry. When an operation of the controlling circuit is set to a continuous operation between banks, the controlling circuit 14 outputs an operation designating signal 16 by the carry, and the bank counter 11 is added by ''1'' by a counting operation. Also, the converted value shows the following bank.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to an address translation device used in a memory.

[Prior art]

As the calculation speed and processing power of microprocessors increase, complex numerical calculations become possible.

The amount of data handled also increases. In order to efficiently execute complex operations involving a large amount of processing data, it is desirable that the memory in which all the data is stored be configured to be easily accessible.

Conventionally, this has been accomplished by means such as memory bank configurations. That is, the memory wall is divided into banks, and by having means for specifying the divided banks and means for specifying addresses within the banks, data in different banks can be accessed by changing the bank specification. It looks like this.

Pointers are used to specify memory addresses. In order to perform the function described above, this pointer is divided into two parts.

An example of this memory configuration is shown in FIG. A back register 3 is used to designate this bank, and an address counter 4 is used to designate an address within the bank.

Now, consider a case where data to be subjected to the same processing is stored consecutively in bank 1' and bank 2'.

At first, bank register 3 specifies pan and ri 1', but when the processing for bank 1' is completed, the value of bank register 3 is converted and processing is performed on the data of bank 2'. . As mentioned above, before the processing moves to bank 2', it is necessary to determine whether the data access in bank 1' is complete, that is, to determine whether the address counter 4 has finished counting, and to change the value of bank register 3. . This is because the bank register 3 and address counter 4 operate independently. That is, in the conventional address translation device, complex processing is required to switch between banks, and bank switching cannot be performed easily.

[Purpose of the invention]

An object of the present invention is to provide an address translation device that can easily specify a bank by eliminating the above.

[Structure of the invention]

The address conversion device of the present invention includes a bank counter that specifies a divided area of memory, an address color that specifies an address within the ni1 memory area, and a value of the bank counter and data input from the outside. a conversion circuit that performs a logical operation and outputs the result to the bank counter; and a control circuit that operates according to the carry of the address counter and specifies the calculation operation of the conversion circuit and the counting operation of the bank counter. Ru.

[Explanation of Examples]

Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings.

FIG. 2 is a block diagram of one embodiment of the present invention.

Bank counter 11 that specifies divided areas of memory
, an address counter 12 that specifies an address within the memory area, a bank counter 11 that performs a logical operation using the value of the bank color/reference 11 and data 15 input from the outside, such as instruction data.
a conversion circuit 13 that outputs an output to the address counter 12, and a control circuit 1 that operates based on the carry of the address counter 12 and specifies the calculation operation of the conversion circuit 13 and the counting operation of the bank counter 11.
This embodiment is characterized by the inclusion of 4.

Next, the operation of this embodiment will be explained.

The bank is empty according to the operation designation signal 17 of the control circuit 14.

The value of /11 is subjected to a logical operation with data 15 inputted from the outside by the liquid exchange circuit 13, and is set to 1, which is again set to 11. The operation designation signal 16 of the control circuit 14 converts the value of the bank counter 11 into a value incremented by 1 in the counting operation. The above counting operation is
Due to the carry of the address counter 12, the control circuit 14
Specifies - If the amount of data is large and the data is stored not only in one memory bank but also across two or more banks, it is possible to perform the same processing on these data sequentially. Then, the above crop rotation becomes as follows.

For data in the first bank, the address counter 12
The address counter 12 outputs a carry when all the data in the bank have been accessed in sequence. When the operation of the control circuit 14 is set to continuous operation between banks, the carry causes the control circuit 14 to output the operation designation signal 16, and the bank counter 11 is set to a value incremented by 1 due to the count operation. will be done. Then, the converted value is
The next bank will show gold.

Also, consider a case where the types of data stored in different banks are different, and the processing of data in one bank is completed and the processing is transferred to another bank.

When the data in the bank has been processed, the control circuit 1
In response to the operation designation signal 17 of No. 4, a logical operation is performed on the data in the conversion circuit 13 using the data of the bank counter 11 and the data 15 inputted from the outside, and the data is inputted to the puncture counter 12 again.

This converted value will indicate the next bank of data to be processed. The above operation is performed when the control circuit 14 is set to the conversion operation.

That is, this operation shows that data can be addressed effectively when the data to be processed next is stored in a bank that cannot be obtained by continuous bank switching.

〔Effect of the invention〕

As described above in detail, the address translation device of the present invention includes an address specifying means using a puncture counter and an address counter, and a conversion circuit that performs translation by a logical operation between the value of the puncture counter and data input from the outside; It does not require complicated processing to switch the control circuit that specifies the count operation of the puncture counter by specifying the operation of the conversion circuit and the carry of the address counter, and it is possible to continuously address two or more memory bars, and This has the effect that memory bank specification can be easily performed, such as switching to a memory bank that does not have a memory bank, and these two operations can be performed simply by specifying the control circuit.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the structure of a memory, and FIG. 2 is a front view of an embodiment of the present invention. 1...Memo! j, 1', 2'...group memory bank, 3...bank register, 4...group address counter, 11...bank register, ri, 1
2: address counter, 13: conversion circuit, 14: old control circuit, 15: data, 16, 17: operation designation signal.

Claims (1)

[Claims] a puncture counter that specifies a divided area of memory;
an address counter that specifies an address within the memory area; a conversion circuit that performs a logical operation on the value of the bank counter and externally input data and outputs the result to the puncture counter; and a conversion circuit that operates based on the carry of the address counter. An address conversion device comprising: a control circuit that specifies an arithmetic operation of the conversion circuit and a counting operation of the puncture counter.