cqo instruction

[itre...@gmail.com]

Hi all, 

I'm trying to do an idiv with a quadword and keep running into EXC_ARITHMETIC. I think RDX hasn't been sign extended and is causing the trouble. Is there any way to issue the cqo instruction?

Thanks!

[Petr Kobalíček]

Hi,

isn't that signal caused by division by zero? If that's the case there should be condition to prevent it before the idiv instruction is executed.

I'm not sure about the availability of cqo instruction in the old asmjit, but I added it already to the new version I'm preparing.

Best
Petr

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[itre...@gmail.com]

Manually clearing rdx to 0 worked, so I'm still working under the assumption that that's the problem. Of course, proper sign extension is better. I'd be happy to try cqo when it's available!

Thanks so much!