> From: "Ben Combee" <combee@xxxxxxxxxxxx>
> Reply-To: stella@xxxxxxxxxxx
> Date: Tue, 20 Jun 2000 19:32:18 -0500
> To: <stella@xxxxxxxxxxx>
> Subject: Re: [stella] RAM usage
>
> Video Chess only needs 32 bytes for the board. Since there are fewer than
> 16 chess pieces (KQBNRPx2), you can encode each square in a single nibble.
> I don't know if that is how its implemented, but it makes sense.
>
> ----- Original Message -----
> From: "Glenn Saunders" <cybpunks@xxxxxxxxxxxxx>
> To: <stella@xxxxxxxxxxx>
> Sent: Tuesday, June 20, 2000 7:18 PM
> Subject: [stella] RAM usage
>
>
>> The TIA reference says there are 45 reserved hardware registers. These
> are
>> mapped into the 128 bytes, right?
>>
Not really. The hardware addresses were locations $00-$7F (Most unused).
These 128 bytes were to access the TIA and I/O (Paddle) registers.
Memory was at $80-$FF (Also mapped to $180-$1FF for stack but it's the SAME
memory) and it was 128 bytes of pure ram.
--
Archives (includes files) at http://www.biglist.com/lists/stella/archives/
Unsub & more at http://www.biglist.com/lists/stella/
