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ManOfSteel



Joined: 02 Feb 2005
Posts: 1154
ManOfSteel
Hello,

Anyone knows what the bochs-p4 file on this page is? I had never seen it before.

The readme says: "This package contains a Bochs executable compiled with Pentium 4 support instead of x86-64 support enabled."

Both "bochs.exe" and "bochs-p4.exe" have a file version of "2.3.7.0" and a description of "The cross platform IA-32 emulator". Both run the same way and look the same (on a non-x86-64 system). Yet the p4 one is 0.12 MB smaller.

And I can't search their website as it returns an error.
Post 21 Jan 2009, 19:34
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17279
Location: In your JS exploiting you and your system
revolution
I would imagine that it has no support for 64bit mode, SSE3, SSSE3, SSE4. Try running some SSE3+ code and see what happens.
Post 22 Jan 2009, 00:31
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ManOfSteel



Joined: 02 Feb 2005
Posts: 1154
ManOfSteel
Code:
      mov     eax,1
       cpuid
;      test    ecx,0x200       ; test for SSSE3
;   test    ecx,1           ; test for SSE3
;    test    edx,0x4000000   ; test for SSE2
     test    edx,0x2000000   ; test for SSE
      jnz     found
;not found
    


The first two (SSSE3 and SSE3) fail and the last two (SSE2 and SSE) work. Both Bochs give the same result.

Am I doing something wrong?

Does cpuid not work properly on Bochs?
Post 22 Jan 2009, 10:03
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17279
Location: In your JS exploiting you and your system
revolution
I thought bochs is open source? Perhaps the source code make file will give some clues?
Post 22 Jan 2009, 10:13
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