Intel® ISA Extensions
Use hardware-based isolation and memory encryption to provide more code protection in your solutions.
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test CPU instructions

paulsohier
Beginner
‎05-14-2012 02:15 AM
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Hi,

(Sorry if I posted this in the wrong place, I couldnt find a better place to post this).
Iam working on a x86 emulator written in JavaScript, and I would like to have some tests on this emulator to make sure the validity of the results for instructions. Does anyone know if there is a set of instructions that checks the instructions for correctness with the x86 standard?

Thanks.
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Bernard
Valued Contributor I
‎05-14-2012 07:08 AM
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Processor will throwinvalid opcode exception.
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levicki
Valued Contributor I
‎05-14-2012 09:49 AM
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There are no such instructions.

You can try coding your emulator based on instruction behavior description available in Intel documentation, or you could try writing a test case for the emulation of each instruction and verify the results by executing the same instruction on the CPU (that would require a lot of work though).
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