Abhishek Khaitan <[EMAIL PROTECTED]> writes:
> Hi!
>
> While I was going through the Linux Device Drivers book by Allessandro
> Rubini, I came to know that at the time of 286 computers, ISA memory was
> mapped between 15 and 16MB for RAM. Since at that time nobody had more than
> 1-2 MB of RAM, people had no problems accessing the ISA memory.
>
> But now, as everybody has around 64MB RAM, so when we access that memory
> between 15 and 16MB (the ISA memory hole), are we referring to physical RAM
> or to ISA card's memory?
>
> Where can I get more details on this?
Abhishek,
Nowaday BIOS'es have an option for this. If enabled, your RAM is
reduced to 15 MB. Off is the default value, but I don't know how the
ISA bus is adressed in this mode.
Johannes Nieß
