Re: OS decisions

On Jun 13, 2009, at 5:35 PM, Shawn Betts wrote:

> On Fri, Jun 12, 2009 at 5:40 PM, Brian Makin<[email protected]> wrote:
>> Some architecture questions... some of which may not have been  
>> decided
>> yet.
>>
>> Do we want to support 32 and 64 bit?
>
> I believe Frode was working on a 64bit port.
>
>> SMP?
>
> Sure, why not?
>
>> Will there be virtual memory?
>
> You sorta have to if you want to access all the computer's memory  
> don't you?
>

More of a question of paging.  You could decide that ram sizes are  
large enough that we don't need it...

>> Memory protection?
>
> In many ways lisp doesn't need memory protection since you don't
> create pointers out of thin air like in C. That said, it could be
> useful for security purposes if movitz was a multiuser system.
>

Protection between user processes probably aren't as important.  In a  
multiuser system you would still want projection between user and  
kernel space however.

>> What kind of file system? or use an existing one?
>
> I think an existing one would be fine.
>
>> Will it have a console or be gui driven?
>
> Both of course! :)
>
> -Shawn
>
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