Are there any x64 builds of LAME? Options

[PsychicHigh]

Just wondering if there are any x64 builds of LAME around. Mostly of the recommended beta, or maybe previous recommended version of LAME.

Thanks in advanced.

[Gabriel]

x87, mmx and even 3dnow are still there.
(see "AMD64 Architecture Programmer’s Manual Volume 5: 64-Bit Media and x87 Floating-Point Instructions")

x87 context is preserved in user space (sure), but I am unsure about kernel space. Anyway, the OS would have to blank the x87 registers when switching context if it did not preserved it, so it doesn't cost much more to save and restore it properly. (not saving and not blanking would lead to a security issue)

Regarding VC8, I found the answer:

The feature to see the legacy x87 registers for x64 applications is not available in VS2005. The main reason for this is that originally the x87 registers were not available for 64bit applications at all. We later did make them available, but only accessible through MASM.

Due to the late addition of the support for x87 and limited use cases, we weren't able to get it into the VS2005 product.

So to answer your question, you can't see them in the VS2005 debugger. You can use the 64bit version of WinDbg though, if that helps.

Thanks for your feedback.

Kang Su Gatlin
Visual C++ Program Manager

So VC8 is not creating code that uses x87 on its own behalf.

This post has been edited by Gabriel: Aug 10 2006, 08:34