Floating-point operations

Usage of VEX tools

Floating-point operations

Postby ah105 » Tue Jan 16, 2007 12:33 pm


I observed that VEX has no floating-point instructions.

What is the proper approach to include them? I am thinking of custom instructions.

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Postby frb » Tue Jan 16, 2007 7:39 pm

Given that FP operations are generated by the compiler and then turned into function calls, I'd say that you're out of luck... Sorry.

VEX has a FP emulation library (softfloat), so you can compile FP code, but the performance will be of a CPU with no FP hardware support.
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