Method and device for reading misaligned data in processor

Abstract

This invention provides a device and method to read the non-aligning materials from processor, which comprises the following steps: the non-aligning material is stored in one memory device and one reading composite memory is coupled with the memory device; one displacement device is coupled with the composite device and memory device to store the memory address and to displace the composite memory an memory device; the control device catches first string and stores it into the composite memory and catches second string.

Description

technical field [0001] The present invention relates to the technical field of data processing, especially to a structure and method for reading unaligned data in a processor Background technique [0002] When the processor performs data processing, the alignment of the data is related to the performance of many key operations, such as the performance of operations such as strings and arrays. As shown in Figure 1, a piece of data to be processed (ABCDEFGHIJKL) often crosses the data storage boundary. When a processor performs string or array operations on the data, it needs to perform many additional operations in order to be able to process the data. After the data is restored to an aligned format, the processor can perform related operations on the pen data. [0003] To deal with the problem of data misalignment, a known method is to load the data into the processor, and then use various processor instructions to operate to obtain the required data. As shown in Figure 2,...

AI Technical Summary

Problems solved by technology

And because of repeated reading and writing to the same memory and scratchpad location, the possibility of processor pipeline stall (Stall) increases

Repeated reading of the same memory location wastes bus bandwidth, especially in systems that do not have cache memory, causing significant delays

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