Where is ftol2_sse?

[jj2007]

Hi Farabi,
Did you ever find a solution?
Jochen

[qWord]

hi jj,
you can find this function in the static CRT library libcmt.lib.
This works in my system:

Code Select Expand

includelib "\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib\libcmt.lib"
...
_ftol2_sse proto c
...
invoke _ftol2_sse ; st(0) = real4

[jj2007]

Hi qWord,

Schwarzenegger says "libcmt.lib(cpu_disp.obj) : warning LNK4210: .CRT section exists; there may be unhandled static initializers or terminators" but otherwise this works perfectly, thanks.

So the trick is to declare it as _ftol2_sse proto c in Masm, in spite of the fact that the C compiler complains about it. Cute. I hat tried my luck with various includes and pragmas in the C source, but no success.

:U

[qWord]

warning LNK4210: .CRT section exists; there may be unhandled static initializers or terminators

this cause the function to not use SSE2 - instead the fpu is used. The reason is that the CRT is not initialized (there is an global variable, that indicate the usage of sse2). To solve this you mus call CRT_INIT at program start:

;return: bool
_CRT_INIT proto stdcall hInst:HINSTANCE,FdwReason:DWORD,LpReserved:DWORD
invoke _CRT_INIT,hInstance,DLL_PROCESS_ATTACH,0

(for clean up simply call the function with DLL_PROCESS_DETACH)