Sirius, Plutos and Rampart Prototypes Released! For Real!

[Sirius, Plutos and Rampart Prototypes Released! For Real!]

Really cool find/release.

Thanks!

[Seventy Eight Hundred]

I would argue that 7800 programming, development, and discussion is at an all-time high.

And that's even counting the years the 7800 was officially supported. After the first year, there really wasn't as much interesting stuff in the works for the 7800 as there was this year. By the way, is Froggie still in the works?

There isn't too much work left to finish Froggie but I currently have to much private business

[Q*bert and Frogger homebrews? Any update?]

If I use 7800_32k and the 7800BIOS I only get one frog chirp sound on the menu screen then no other sounds. My CC2 doesn't have a pokey chip.

 

HSC_32K and HSC as the bios do the same thing except I then get the high score screen as well.

Press PAUSE twice in the title menu then you can select between TIA/Cartridge Pokey/XBoard Pokey.

[DooM XL ;-)]

Wolfenstein run smooth with my 386/40 with tseng vga.

[Santa Simon?]

any hints?

There is a hidden screen,

Hint enough?

C'mon it's easy

[Santa Simon?]

Nearly one year ago now...

Anybody found the hidden screen?

[Q*bert and Frogger homebrews? Any update?]

I just played the Frogger homebrew. Pretty tough to play. I'm using ProSystem emulator and had no sound when playing the game. Does it have sound? I realize it is a beta version and is not complete.

True it's not final but supports pokey (and tia) anyway.

If sound doesn't work than your settings CC are wrong.

For Prosystem use the a78 and not the bin file.

[ABBUC Software Contest 2007]

Hallo Gunnar

Habe gerade im Mitgliederbereich das Sondermagazin downgeloaded.Bekomme aber beim Emulator nur einen

Disk Error.

Gruss Walter

Hi Walter,

 

wenn Disk error erscheint H und dann 1 drücken, dann kannst du die Files auswählen.

Nicht vergessen den Emu auf 128kb zu stellen sonst läuft Crownland nicht richtig.

[Little Displaylist Text Tool]

I don't know because I don't know the macro or even maria.h.

What it does is simple.

You enter a text, a palette number a label and a position then the tool displays a line you can copy & paste in your displaylist source.

It looks like this ".byte <label,$60,>label,$f5,$10" for "Hello world", palette 7, adress "label" and postion $10.

 

I just resumed 7800 programming and again it was annoying to create the displaylists especially the "calculation" of the palette/text length byte for text output.

That's why I hacked a little tool where you can enter the string, choose the palette and the program creates the displaylist string for you.

You can just copy & paste it to your code.

Maybe it's useful for some of you (at least it’s useful for me )

.NET framework 1.1 is required.

Sorry for responding so late but I started looking at 7800 programming again. Just so I'm clear...doesn't this do the same a the XHEADER macro in maria.h?

[Beef Drop]

Thanks for sharing.

I like the note " code probably mostly sucks and is disorganized. It always starts out nice, but things go downhill from there :-)"

[Development for Atari 7800 using an emulator]

Hi,

 

I've got a request about porting the volksForth system to the Atari 7800 System (see --> volksforth.sf.net ).

 

A Forth System would run well inside the 32kb RAM and would allow interactive development on the machine.

 

To start with I would do some tests with an A7800 emulator.

 

My question: is there an emulator that allows communication (like serial) between the A7800 System and the host environment?

 

Best regards

 

Carsten Strotmann

Hi Carsten,

 

unfortunately the 7800 has only 4k of RAM but of course it is possible to create a cartridge with a 32kb RAM chip.

I don’t think that the emulators supports more than 16kb RAM but not sure about that.

Serial communication isn’t possible with any of the emulators.

[Pokey Titles]

Tainted Love does not use the Pokey.

 

I know because I was trying to use it as a test for my cart board.

So the only reason I have it inside a commando is for the bankswitch then?

Yep.

 

The only reason it used a "pokey" bankswitch for the CC2 was because there wasn't a non-Pokey 512K bankswitch file.

 

http://www.atariage.com/forums/index.php?s...t&p=1232071

 

Pokey is also enabled but the "demo" only uses TIA.

True, Tainted Love is only TIA.

Multi Lock On demo uses Pokey.

[Watkins - 7800 High-score-cart source code]

It's the way how byte values are assigend to letters.

For Watkins it's 0=A, 1=B, 2=C etc.

[Why can't the 7800 handle a StreetFighter 2 style game?]

I think you can make a decent version in 160B mode which is basically the resolution of the c64 version.

Trying to make it in 320 mode isn’t the way to go I guess.

[Hardsynth]

And here are two tunes with very high timing characteristics. On the real thing still more is possible, but this setting sounds almost same on RMT, the A8 emulator and in the new SAP player.

I really appreciate your effort but I think pokey can do better.

I just listen to the c64 tune and it is so nice I really like to hear something like that on the good old xl.

However please keep on going.

[Q*bert and Frogger homebrews? Any update?]

Here is the latest version of Froggie with HSC support and a different (harder) game mode which is planned to be a second mode in the game.

Maybe it's a bit too hard I have to figure out that.

Only the first three levels are different in pattern the other are only different in speed (yet)

Frogger.zip

[I think I might as well give up]

The A8 is really a good platform to start with.

But you really have to invest some time to understand the 6502 it isn't done in a week if you never programmed assembler before.

[Wormy demo (320B mode)]

Here's a test of trying to create one of my 1980's games for the PC. Quite a promising start. On startup, it shows a character mode test screen. Push RESET to clear the screen and enable the worm/snake/whatever. Move the joystick to move the worm/snake/whatever around the screen; push fire button to move faster. The maximum length is 250. I could go longer if I wanted to use a two-byte counter.

Nice

[Q*bert and Frogger homebrews? Any update?]

Frogger/ie is still in progress.

I made some progress since the last public version but things are going on very slowly mainly because I am currently very busy with my job

[sample 7800 source code using (ZP,X)]

As per supercat's suggestion in my 7800 cycle counting blog entry, herein find an alternate version of my sample 7800 display list builder using the unloved (zp,x) addressing mode.

 

The main advantage is a surprising savings of 25 cycles per sprite (161 versus 186), although some/all of this may be lost when wrap around is added. The disadvantage is the routine requires 2 bytes of zero page RAM per display list.

 

I've also added the dummy 5 byte sprite header to set Write Mode which was missing from the first skeleton.

 

Thanks for sharing Eric.

Personally I prefer a "static" dll because it's easier to handle and entries outside the visible area doesn't eat any cycles but I guess there are circumstances where you better use a more dynamic model.

[Most popular classic computer of your country?]

Or the Oric for example. I didn't even know that a computer with that name existed, before someone posted a mini game compo entry 2-3 years ago

Hehe, my friend had one.

I Think he was the only one in Germany who ever owned one

As far as I know the oric was very common france.

[Most popular classic computer of your country?]

Well, I don't think you can put Amstrad/Schneider and Atari on the same level.

 

I was just thinking of the 8-Bit Ataris here. First time I saw one in my whole life was when we met in Karlsruhe (or Frankfurt?)

The A8 ranked right behind the C64 and far before the ZX spectrum (which comes third IMHO).

In our "regular store meetings" at Karstadt every Saturday we had a 50/50 situation between C64 and Atari XL users but in reality it was more about 80/20 I guess.

[Colecovision Spiele in Deutschland]

Ich dachte immer das Sofortkauf nicht mehr funktioniert wenn auf den Artikel geboten wurde!?

Das Angebot wurde übrigens entfernt, komisch.

 

Na wer weiss wie hoch die noch geht.

 

Sofort kaufen ist doch für 26,99!

 

Na, vieleicht kaufe ich es mir, meins macht eh immer zicken...

[How to waste the memory of your CC2 MMC Cart? Part 2]

That is wildly cool! I probably would have dropped dead back in the day had I seen something like that on the 7800!

Lol

 

So that's a pokey mod player in there?

Not really a mod player but you can convert a mod file with the raster music traker to rmt format (http://raster.infos.cz/atari/rmt/rmt.htm)

 

What does the animation? Neat!!

Converted from a gif.

[Still having color issues with my 7800...]

Ok, I don't want to be known as a troll around here, but I smell a rat. After being told that green is the normal title screen for 7800 Galaga, in another thread, I checked Mobygames, a huge video game database, and found these screenshots:

 

http://www.mobygames.com/game/atari-7800/galaga/screenshots

 

As you can clearly see, the game's title screen is in gold, not green. Even when I emulated 2600 Galaxian, in Stella, the colors were more detailed and crisp then they are on my 7800.

 

I don't know if all of this is because my 7800, which I bought from someone on this site, might be damaged (there were pieces of black plastic that fell out of the system as I was unwrapping it), if I need to get it modded for AV output, or just get a 2600 with a cartridge slot hacked into it, but something's got to be wrong here.

Maybe you use a NTSC Galaga on a PAL Device or vice versa?