Re: EDX value after reset

For anybody except BIOS writer the BIST is invisible because BIOS would overwrite the EDX anyway.

Are you writing BIOS ?

 

From: Henk Nep [mailto:[email protected]] 
Sent: Tuesday, March 28, 2017 9:46 PM
To: Stanislav <[email protected]>
Cc: [email protected]
Subject: Re: [Bochs-developers] EDX value after reset

 

Hi Stanislav,

Thanks for such a quick reply. I am not sure I agree with you as the BIST result (even if it is always correct and doesn't do anything) should be simulated as well. I have now hard coded the value back in.

 

Thanks,

Henk.






 

On 28 March 2017 at 18:53, Stanislav <[email protected] <mailto:[email protected]> > wrote:

Yes, it is correct. 

I don’t see any reason to invent any values of BIST test which Bochs doesn’t perform.

 

Thanks,

Stanislav

 

From: Henk Nep [mailto:[email protected] <mailto:[email protected]> ] 
Sent: Tuesday, March 28, 2017 1:02 PM
To: [email protected] <mailto:[email protected]> 
Subject: [Bochs-developers] EDX value after reset

 

Hi All,

I just compiled 2.6.8 and noticed that the EDX register no longer contains the self test value after reset, is this correct?

       P6          Pentium     486
EDX    000006xxH   000005xxH   000004xxH 

The value after reset is 0. Here is my .conf file:

./configure --target=pentium-windows \
            --enable-sb16 \
            --enable-ne2000 \
            --enable-all-optimizations \
            --enable-cpu-level=4 \
            --disable-fpu \
            --enable-pci \
            --enable-x86-debugger \
            --enable-debugger \
            --enable-iodebug \
            --enable-clgd54xx \
            --enable-show-ips \
            --disable-readline \
            --without-x \
            --with-win32 --with-rfb --with-nogui

Many thanks.

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