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x64 ABI
Oct 14, 2019
Marcel
Oct 14, 2019
Stefan Koch
Oct 14, 2019
Marcel
October 14, 2019
Gravatar of MarcelPosted by MarcelReply
Marcel
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It appears that the ABI specification only describes the register convention for x86. Where can I find which registers get preserved across function calls for 64-bit targets?
October 14, 2019
Gravatar of Stefan KochPosted by Stefan Koch
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Stefan Koch
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On Monday, 14 October 2019 at 16:02:28 UTC, Marcel wrote:
> It appears that the ABI specification only describes the register convention for x86. Where can I find which registers get preserved across function calls for 64-bit targets?

It's the same as c++.

https://en.wikipedia.org/wiki/X86_calling_conventions#x86-64_calling_conventions
October 14, 2019
Gravatar of MarcelPosted by Marcel
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On Monday, 14 October 2019 at 16:05:34 UTC, Stefan Koch wrote:
> On Monday, 14 October 2019 at 16:02:28 UTC, Marcel wrote:
>> It appears that the ABI specification only describes the register convention for x86. Where can I find which registers get preserved across function calls for 64-bit targets?
>
> It's the same as c++.
>
> https://en.wikipedia.org/wiki/X86_calling_conventions#x86-64_calling_conventions

Excellent, thank you!