Recent posts

#1
Boulder Dash FREE DEMO! / Emulator settings
Last post by Andrew Davie - 13 Jun 2024, 10:07 AM
Here are the emulator settings I use to help reduce shimmer/ficker.

Gopher
Screenshot 2024-06-13 at 10.04.55 AM.png

Stella
Screenshot 2024-06-13 at 10.05.35 AM.png
#2
Forum Meta / Like
Last post by Andrew Davie - 13 Jun 2024, 01:41 AM
The forum now has a very basic "Like" option at the bottom left of posts.
#3
Boulder Dash FREE DEMO! / Re: DEMO Reviews
Last post by SpiceWare - 13 Jun 2024, 01:16 AM
Quote from: guppy on 13 Jun 2024, 12:26 AMI stand corrected; thanks for setting me straight.  I thought I had read somewhere that it was running on unmodified Atari 2600. Since I'm playing it on Stella, I guess Stella somehow emulates the ARM processor, too, then?  How interesting!

You might find my blog post extra hardware! helpful. It covers how Atari cartridges evolved over time to improve the gaming experience. When it talks about DPC+ that also applies to CDFJ as CDFJ is basically an updated version of DPC+.
#4
Boulder Dash FREE DEMO! / Re: DEMO Reviews
Last post by Andrew Davie - 13 Jun 2024, 12:52 AM
QuoteI stand corrected; thanks for setting me straight.  I thought I had read somewhere that it was running on unmodified Atari 2600. Since I'm playing it on Stella, I guess Stella somehow emulates the ARM processor, too, then?  How interesting!


You seem to be a little confused.  It ***is*** running on an unmodified Atari 2600. It will run on any Atari 2600 there ever was. The cartridge has a chip on board which does NOT modify the Atari. All the graphics are still generated by the Atari 2600 chip (TIA) as is the sound. The extra hardware on the cartridge just puts data on the "bus" more quickly than would otherwise be possible in a "normal" cartridge. It's certainly much more capable and gives extra RAM too. But the Atari 2600 is most definitely unmodified. Think of it like the Pitfall cart which put extra stuff on the cartridge; it's just an extension of that. Still a '2600 at heart.

Yes, Stella (and Gopher) emulate the ARM chip on the cartridge, and the extra quick bus updates.
#5
Boulder Dash FREE DEMO! / Re: DEMO Reviews
Last post by guppy - 13 Jun 2024, 12:26 AM
Quote from: Andrew Davie on 12 Jun 2024, 02:27 PM
Quote from: guppy on 12 Jun 2024, 02:07 PMAndrew Davie's Boulderdash for the Atari 2600 is the most visually impressive Atari 2600 game I have ever played, hands down. That he has developed it to run on stock hardware without expansion chips on cart is nothing short of amazing. The technical tricks he has pulled off within the limited confines of the hardware are mind boggling. How does he do it?  It's a masterpiece of 6502 Assembly.

I wish!  It's a CDFJ title, which means it benefits from an ARM-chip on the cart. So, this makes it possible. Nonetheless, I am pushing the ARM to the absolute limits to get the results you see.


!! 

I stand corrected; thanks for setting me straight.  I thought I had read somewhere that it was running on unmodified Atari 2600. Since I'm playing it on Stella, I guess Stella somehow emulates the ARM processor, too, then?  How interesting!
#6
Chrono Skull FREE DEMO!! / Re: Skull Release on Cart?
Last post by JetmanUK - 13 Jun 2024, 12:13 AM
Quote from: Andrew Davie on 12 Jun 2024, 01:28 AMmanages to make the eyes only green(ish)Demonic!

Can confirm, my wife also has green eyes.
#7
Chrono Skull FREE DEMO!! / Re: Skull Release on Cart?
Last post by JetmanUK - 13 Jun 2024, 12:03 AM
Ah, I liked the green eyes.
 :)
#8
Boulder Dash FREE DEMO! / Re: DEMO Reviews
Last post by Andrew Davie - 12 Jun 2024, 02:27 PM
Quote from: guppy on 12 Jun 2024, 02:07 PMAndrew Davie's Boulderdash for the Atari 2600 is the most visually impressive Atari 2600 game I have ever played, hands down. That he has developed it to run on stock hardware without expansion chips on cart is nothing short of amazing. The technical tricks he has pulled off within the limited confines of the hardware are mind boggling. How does he do it?  It's a masterpiece of 6502 Assembly.

I wish!  It's a CDFJ title, which means it benefits from an ARM-chip on the cart. So, this makes it possible. Nonetheless, I am pushing the ARM to the absolute limits to get the results you see.

#9
Boulder Dash FREE DEMO! / Re: DEMO Reviews
Last post by guppy - 12 Jun 2024, 02:07 PM
Andrew Davie's Boulderdash for the Atari 2600 is the most visually impressive Atari 2600 game I have ever played, hands down. The amount of colors, the detail in the sprites, the animations, the zoom controls, the wipe animations, the parallax background scrolling, and the "rage quit" screen all blew me away.

This is a title that will surely appear on the Top N list of any Atari fan who plays it. Even if Boulderdash isn't your favorite game on the system, the technical superiority of the game, the sheer amount of programming creativity and features packed into it will surely put it high among anyone's Top 10, Top 5, or even Top 3 games on the system.

There are many highly impressive games to come out on this 45 year old platform in recent years: from originals like Circus Convoy from Audacity Games, to enhanced arcade-faithful ports from Champ Games, and the not-as-yet final Dintar812 8k port of Pac-Man.  If you asked me to pick a favorite, I couldn't do it, but if you asked me which one impressed me the most, I'd have to go with this port of Boulderdash without question.
#10
Chrono Skull FREE DEMO!! / Re: Skull Release on Cart?
Last post by Andrew Davie - 12 Jun 2024, 08:23 AM
Doesn't look nearly as good in the light of day.  So, no - B&W it is.