JPS59173863A - Mask memory system - Google Patents

Abstract

PURPOSE:To improve the memory efficiency and then a mask processing function by avoiding fixing a memory for storage of mask data in terms of hardware and using optional one of plural memory modules as a mask memory when necessary. CONSTITUTION:Memory modules 10-1-10-n are all used equally and in a module unit as store memories for the processing data and the mask data. Only a mask data output part 12 is fixed for mask data in terms of hardware. Output parts 11-1, and 11-2 and a mask data output part 12 select the read data of either one of modules 10-1-10-n. These selection signals are supplied through processing data selection lines 16-1 and 16-2 and a mask data selection line 17. The selected processing and mask data are delivered to a line 20 for processing data to be masked after undergoing the arithmetic processing through an AND arithmetic part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a mask memory method, and in particular to a method for using any memory module in a memory system consisting of a plurality of memory modules without providing a dedicated mask memory on hardware. The present invention relates to a method in which mask memory is allocated at any time and remaining memory modules are designated as processing memory to perform mask processing.

[Technology background]

Conventionally, for example, in image processing systems, mask processing has been used to specify and process areas on the screen, such as extracting or updating a specific part of the screen. Processing involves providing a dedicated mask memory in addition to the processing memory for screen data, accessing both memories at the same time, looking at the screen data and mask data at the corresponding address, and taking their AND. This was done by

FIG. 1 shows an example of the conventional mask processing mechanism described above. In the figure, 1-1 to 1-3 are processed data,
For example, memo IJ for screen data accumulation % Joule, 2
3-1 to 3-2 are output sections; 4 is a mask data output section; 5 is an AND operation section; 6 is a write data bus; 7 is an address and control bus; 8-1 and 8-2 is a processing data line;
9. is the data line to be masked.

The capacity of the mask memory 2 is the same as the capacity of each processing data memory module 1-1 to 1-3, and according to the mask data set in the mask data memory module 2,
Processing data of any one of memory modules 1-1 to 1-3 can be masked. Note that the processing data of the memory modules 1-1 to 1-3 are, for example, different screen data of full size screens, or one
The data may be data of partial screens obtained by dividing two full-sized screens. In the latter case, mask data memory module 2
The screen area that can be masked by corresponds to a respective partial screen of each memory module. Further, the number of memory modules and the number of output units are not more than two in one example, and can be configured as required.

Data is written to the processing data memory modules 1-1 to 1-3 and the mask data memory module 2 from the write data bus 6 based on signals from the address and control bus 7. -3 (11) - The code data is sent to the output section 3.
-1 or 3-2, processing data line 8-
1, 8-2.

The output section 3-1 or 3-2 is connected to the memory module 1-
Select any one of 1 to 1-3, perform a logical AND operation on it and the data read from the mask data memory module 2 in the arithmetic unit 5, and output the masked data to the masked data line 9C2. do.

In the conventional mask processing mechanism described above, mask data can be set in the mask data memory module 2, and the memory modules 1-1 to 1-3 are dedicated to storing processing data, and the memory module 2 is dedicated to storing mask data. Since it is fixed, there is a problem in that the usability of memory is low and processing efficiency cannot be improved when performing various mask processing.

[Object and structure of the invention]

An object of the present invention is to improve the efficiency of memory efficiency in a data processing system by not fixing a memory for storing mask data in hardware, but by making it possible to use any one of a plurality of memory modules as a mask memory at any time. The objective is to increase the mask processing function and improve the mask processing function.

Accordingly, the configuration of the present invention includes a memory system including a plurality of memory modules and a mask data output section, each of the plurality of memory modules is assigned to one of the functions of a mask memory and a processing memory, and The data output section is coupled to the plurality of memory modules, and is characterized in that it selects read data of one memory module allocated to the mask memory function and outputs it as mask data.

[Embodiments of the invention]

The details of the present invention will be explained below based on examples.

FIG. 2 shows the configuration of one embodiment of the present invention. In the figure, 10-
1 to 10-'? L is a general-purpose memory module, 11-
1 and 11-2 are output sections, 12 is a mask data output section, 13 is an AND operation section, 14 is a write data bus, 15
are address and control buses, 16-1 to 16
-2 is a processing data selection line, 17 is a mask data selection line,
18-1 and 18-2 are processing data lines, 19 is a mask data line, and 20 is a masked data line. The memory module may be either a two-dimensional memory or a three-dimensional memory.

In this embodiment, memory modules 10-1 to IQ-
The rL can be used as a storage memory for processing data and mask data in the same way on a module-by-module basis.
Only the mask data output section 12 is fixed in hardware for mask data. Therefore, there is a memory module complete! As long as it is empty, it can be arbitrarily determined whether to store processed data or mask data depending on the processing situation. The allocation of processing data and mask data to each memory module is managed by software using, for example, a table.

The output unit 11-1, 11-2 and the mask data output unit 12 are connected to memory modules 10-1 to 10-1, respectively.
Select one of the n read data. The selection signal is
It is provided by processing data selection lines 16-1 to 16-2 and mask data selection line 17.

The processing data and mask data selected in this manner are subjected to arithmetic processing in the AND operation section 13 and output to the masked processing data line 20.

FIG. 3 shows an example of the operation of the embodiment system shown in FIG. 2, in which memory modules 10-2 and 10-3 are used for storing mask data, and the remaining memory modules are used for storing processed data. Indicates when In the figure, the output section 11-1 selects the processing data of the memory module 10-1, the mask data output section 12 selects the mask data of the memory module 10-2, and the arithmetic section 13 selects the logical product of the two. Mask processing is performed by removing the .

〔Effect of the invention〕

As mentioned above, mask data can be set in any free memory module C=, and if it is no longer needed, it can be released and changed to store screen data, and memory modules can be allocated dynamically. Compared to conventional methods, the mask processing efficiency of the system is improved and the memory utilization efficiency is also improved.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a conventional mask memory processing mechanism, FIG. 2 is a configuration diagram of an embodiment of the present invention, and FIG. 3 is an explanatory diagram showing an example of operation. In the figure, 10-1 to 10-? I is a memory module, 1
1-1 and 11-2 are read data output sections, 12 is a mask data output section, 13 is an AND operation section, 14 is a write data node, 15 is an address and control node, 20-1E -?Sufu-dokoro El゛11 Roku〉Draw t4＼Suf 2 Kutsunturorebus

Claims (1)

[Claims] A memory system consisting of a plurality of memory modules and a mask data output section are provided, each of the plurality of memory modules is assigned to one function as a mask memory or a processing memory, and the mask data output section is assigned to one of the functions of the plurality of memory modules. A mask memory method characterized in that read data of one memory module connected to a memory module and allocated to a mask memory function is selected and output as mask data.