Simulation method and device for extended instruction

Abstract

The invention provides an expansion instruction simulation method and apparatus. The method comprises the steps of determining a memory position of an instruction simulation program corresponding to an expansion instruction according to a user-mode software interruption instruction in a binary executable program, wherein the user-mode software interruption instruction corresponds to the expansion instruction in the binary executable program; and calling and executing the instruction simulation program corresponding to the expansion instruction according to the memory position. The binary executable program can be subjected to simulative execution without changing the number of instructions in the binary executable program, so that addresses of the instructions in the binary executable program are not changed, a code program of the binary executable program does not need to be re-scanned, the simulative execution time of the expansion instruction in the binary executable program is shortened, and the simulative execution efficiency is improved.

Description

technical field [0001] The invention relates to computer technology and processor technology, in particular to a method and device for simulating extended instructions. Background technique [0002] In the process of upgrading and updating the processor, it is necessary to expand the instructions in the binary executable program, thus forming the extended instructions. After the instructions in the instruction set of the processor are expanded, it is necessary to simulate and execute the extended instructions of the binary executable program, and the content of the simulated execution includes the simulation of the extended instructions and the verification of the extended instructions. [0003] In the prior art, when testing the expansion instructions of the binary executable program, it is necessary to place multiple test codes or multiple test instructions at the location of the expansion instructions, and then re-scan the code program of the binary executable program , ...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for simulating extended instructions, which are used to solve the problem in the prior art that before testing each extended instruction of a binary executable program, it is necessary to first scan the code program of the binary executable program, and then complete the test. The test process of each extended instruction increases the time for testing the extended instructions of the binary executable program and reduces the efficiency of the test.

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