9ea
Subj : Re: CPU Speed!
To   : borland.public.cpp.borlandcpp
From : "Ed Mulroy [TeamB]" <dont_email_me@bitbuc.ket>
Date : Mon Oct 27 2003 12:41 pm

If you want the CPU speed in MHz then try this.  Assuming that you saved it
as Speed.c then a command line to build it might be one of those below:

If it is to be run on a machine which has BC++ on it
    bcc32 -RT- -x- -WM- -WR speed.c noeh32.lib
    speed.exe is about 6K, dynamic linked

If it is to be run on a machine which does not have BC++ on it
    bcc32 -RT- -x- -WM- -W speed.c noeh32.lib
    speed.exe is about 26K, static linked

Borland C++ does not have BASM, the built-in assembler.  To handle inline
assembly it will shell out to TASM32.EXE or whatever assembler you have
configured it to use.

  -------------------------------
  #define STRICT
  #include <windows.h>
  #pragma inline

  #define RDTSC __emit__(0x0F, 0x31) /* rdtsc instruction */

  static DWORD GetCpuSpeed(void)
    {
    LARGE_INTEGER liFreq;
    LARGE_INTEGER li1;
    LARGE_INTEGER li2;
    DWORD         timestamp[2];
    HANDLE        hThread;
    int           nPriority;

    hThread  = GetCurrentThread();
    nPriority = GetThreadPriority(hThread);

    QueryPerformanceFrequency(&liFreq);
    liFreq.QuadPart /= 10;
    SetThreadPriority(hThread, THREAD_PRIORITY_HIGHEST);

    RDTSC;
    __asm mov dword ptr [timestamp],eax
    __asm mov dword ptr [timestamp + 4],edx

    QueryPerformanceCounter(&li1);

    do
      {
      QueryPerformanceCounter(&li2);
      } while((li2.QuadPart - li1.QuadPart) < liFreq.QuadPart);

    RDTSC;

    __asm {
      sub   eax,dword ptr [timestamp]
      sbb   edx,dword ptr [timestamp+4]
      mov   ebx,100000
      div   ebx
      push  eax
      }

    SetThreadPriority(hThread, nPriority);
    __asm pop  eax
    return _EAX;
    }

  #pragma argsused
  int WINAPI WinMain(HINSTANCE h, HINSTANCE hp, LPSTR s, int n)
    {
    char buff[32];

    wsprintf(buff, " %u MHz ", GetCpuSpeed());
    MessageBox(HWND_DESKTOP, buff, " CPU Speed ", MB_OK);
    return 0;
    }
  -------------------------------

..  Ed

> Majid wrote in message
> news:3f9d2dd4$2@newsgroups.borland.com...
>
> I want to calculate speed of my CPU and I have these properties
> of my Processor :
>
> >>Raw Frequency
> >>Normal Frequency
> >>In cycles
> >>ExTicks
>
> I just want to get my CPU speed in Mhz and I don't know how to
> combine these information. Can somebody help me?

.

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