Re: mmx instruction support on bohcs

I bought a car and filled it with water instead of gasoline so it doesn't
work.

What should change in the car firmware to make it working ?

 

I strongly suggesting you to read Intel Software Developers manual first.

 

Stanislav

 

From: Hatte John [mailto:[email protected]] 
Sent: Friday, April 26, 2013 6:14 AM
To: Thore Sittly
Cc: Stanislav; [email protected]
Subject: Re: Re: [Bochs-developers] mmx instruction support on bohcs

 

  Need I   add these to bochs source ? if I want to enable sse .

 

 

2013/4/26 Thore Sittly <[email protected]>

Maybe this should work:

;now enable SSE and the like
mov eax, cr0
and ax, 0xFFFB         ;clear coprocessor emulation CR0.EM
or ax, 0x2                     ;set coprocessor monitoring  CR0.MP
mov cr0, eax
mov eax, cr4
or ax, 3 << 9          ;set CR4.OSFXSR and CR4.OSXMMEXCPT at the same time
mov cr4, eax
ret

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