Re: [stella] 6502 hardware register writes

["TwoHeaded Software" <adavie@xxxxxxxxxxxxx>]

I have an systems architecture I believe will work well on the GBA for emulating a '2600.  Yes, it's a 16.78MHz processor - an ARM7TDMI to be precise.  I've been thinking about the emulator architecture for some time now, and have started the implementation.  The only real issue for me is accurately emulating the '2600;  getting a basic emulation is straightforward.

The plan is to implement a realtime bi-linear filter on the screen so the Atari screen will fit on the GBA screen (240 x 160) without the need to scroll around (though this is optional).

Cheers

A

-
Andrew Davie, TwoHeaded Software
adavie@xxxxxxxxxxx

----- Original Message -----

From: AutismUK@xxxxxxx

To: stella@xxxxxxxxxxx

Sent: Saturday, November 03, 2001 8:41 AM

Subject: Re: [stella] 6502 hardware register writes

In a message dated 02/11/01 19:15:11 GMT Standard Time, ecwilkso@xxxxxxx writes:

> BTW, since you mentioned that you are now mainly programming for
> the GBA and that you were interested in VCS emulators for that
> console, can we all speculate about the target platform for this
> project now? ;-)

Hmmm...doesn't the GBA run close to 16.78 MHz???  Hmmmm......

It's not just the frequency..... 18Mhz on a 8051 is wildly different to
18Mhz on an AVR Risc .....