32 replies to this topic

[superbee]

atari2600land, on Tue Mar 22, 2011 7:02 PM, said:

That would be really useful, as I learn through examples (and modifying them to get my needs.) As it turns out, I had been a Videopac.nl member since 2008, and I had made 4 posts about the same game back in '08 in the help section.

Well, seems I can´t upload .a48 files here

[atari2600land]

You can always e-mail them to me.

[GroovyBee]

superbee, on Tue Mar 22, 2011 7:41 PM, said:

Well, seems I can´t upload .a48 files here

Just zip them up and attach the *.zip to your post.

[atari2600land]

OK, what is really bugging me about assembly is there is no way to do if-then things. How would I do this in assembly:

if a>#01ch then cpl a else add a,#1

I'm getting to the point now where I'm working on a border since I was playing around with the code in videopac.nl and stumbled through trial and error figured out how to make a border around the playfield.

[superbee]

GroovyBee, on Wed Mar 23, 2011 2:19 AM, said:

superbee, on Tue Mar 22, 2011 7:41 PM, said:

Well, seems I can´t upload .a48 files here

Just zip them up and attach the *.zip to your post.

Right, Maybe other could be interessed in a lill of Ody2

Attached Files

•  gs.zip   2.17K   14 downloads

[superbee]

atari2600land, on Wed Mar 23, 2011 4:27 AM, said:

OK, what is really bugging me about assembly is there is no way to do if-then things. How would I do this in assembly:

if a>#01ch then cpl a else add a,#1

I'm getting to the point now where I'm working on a border since I was playing around with the code in videopac.nl and stumbled through trial and error figured out how to make a border around the playfield.

Chris, you already checked René´s site. There´s some usefull function there:
http://home.kpn.nl/~rene_g7400/

[Bryan]

Anyone know what registers $A4 and $A5 do on the i8244/VDC? I was poking though cartridge code and found them being checked after a write to A0 (VDC Control).

EDIT: Ah, found it! Beam position

Edited by Bryan, Wed Jul 13, 2011 12:56 PM.

[atari2600land]

Hello, I'm back again. Here's what I've got so far. I am wondering how the random number generator works, I'd need two values, for the different x and y values for the ant on the screen (I'm trying to make Ants! on the Odyssey^2 in case you're wondering.)

Attached Thumbnails

•