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Topic: x64 Commands in x32 to Windows environment

Whether it is possible for the compiler (VC or gcc) to prompt, what it used x64 commands if needed (with a prefix certainly) in x32 to Windows environment (and x32  it is finite)? It is necessary for acceleration of calculations over 64 bit numbers. If is not present, what candidate solutions of the given task are? In manual on  it is necessary to write much.

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Re: x64 Commands in x32 to Windows environment

Hello, maks1180, you wrote: whether M> It is possible for the compiler (VC or gcc) to prompt, what it used x64 commands if needed (with a prefix certainly) in x32 to Windows environment (and x32  it is finite)? Also do not dream. Prefixes in 32 bit mode should not to work. Probably, somehow receiving appropriate privileges also it will be possible switches in a 64-mode, but it precisely is not pleasant to Windows, fails at the first attempt to switch flows, and can and earlier.

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Re: x64 Commands in x32 to Windows environment

Hello, pagid, you wrote: P> but it precisely is not pleasant to Windows, fails at the first attempt to switch flows, and can and earlier. And here Windows? If all to make correctly - it will be fine to work, 32 bit applications on x64 already contain all 64 bit DLL by design. Another matter that is all , and  is specially fenced (just that pioneers did not do an unsupported shit). Therefore the correct method is any IPC in x64 process. Though through COM, though the bicycles.

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Re: x64 Commands in x32 to Windows environment

Hello, IID, you wrote: IID> And here Windows? Unless the 32-bit Windows are able to switch correctly flows being in a 64-digit mode? IID> if all to make correctly - it will be fine to work, 32 bit applications on x64 already contain all 64 bit DLL by design. But in 64-digit Windows

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Re: x64 Commands in x32 to Windows environment

Hello, pagid, you wrote: P> But in 64-digit Windows Yes, only in it. Did not pay attention that the HARDWARE wants on the contrary. Then let launches x64  and communicates with it from 32 bit OS.