what's the a20?

[blito]

i'm begining with os and i want to know what's the a20
why initialize???.
it's needed for protected mode?.
where i could find information abaut this
thank's

[The Legend]

>On 2002-04-03 12:57:22, blito wrote:
>i'm begining with os and i want to know what's the a20
>why initialize???.
>it's needed for protected mode?.
>where i could find information abaut this
>thank's
May I suggest you this FAQ:
http://osanswers.port5.com/gettingstarted.htm
from
http://osdev.redir.net/

The Legend

[Guest]

>On 2002-04-03 13:10:33, The Legend wrote:
>>On 2002-04-03 12:57:22, blito wrote:
>>i'm begining with os and i want to know what's the a20
>>why initialize???.
>>it's needed for protected mode?.
>>where i could find information abaut this
>>thank's
>May I suggest you this FAQ:
>http://osanswers.port5.com/gettingstarted.htm
>from
>http://osdev.redir.net/
>
>The Legend

thank's

[Guest]

>On 2002-04-03 13:10:33, The Legend wrote:
>>On 2002-04-03 12:57:22, blito wrote:
>>i'm begining with os and i want to know what's the a20
>>why initialize???.
>>it's needed for protected mode?.
>>where i could find information abaut this
>>thank's
>May I suggest you this FAQ:
>http://osanswers.port5.com/gettingstarted.htm
>from
>http://osdev.redir.net/
>
>The Legend

thank's