rewriting content of BIOS

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anil

rewriting content of BIOS

Post by anil »

Dear Sir,

Is it possible to rewrite the content of BIOS through C program. If we know the port no. shall we able to write some thing into that area.

what i need is to reduce the extended memory to 4MB through my program.
will the outportb will help to rewrite content to 4MB(or something) if so how

i know the port nos. 30h and 31h where the extended memory lies and how to read the content of that using inportb() and outport().

regards,
anil
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