Atari 7800 basic programming

[Purity]

Does anyone have any experience of programming in Atari 7800 basic? I'm trying to get my head around it to write some code for testing POKEYs but I'm struggling :-(

 

[Hurray Banana]

Try on atariAge Ben

They have a sub forum dedicated to it

http://atariage.com/forums/forum/52-atari-7800-programming/

this is a good start point

http://atariage.com/forums/topic/129277-7800-development/

Hurray Banana2017-04-05 19:39:43

 

[Purity]

Sadly that didn't yield much help.

I've found two snippets of code, both look like they are written in C

http://atariage.com/forums/topic/146725-detecting-pokey
http://7800.8bitdev.org/index.php/Detecting_POKEY

This will test the random number part of the Pokey.

So far I've not been able to compile this code in either CC65 (first link) or other C compilers for the second link (DASM etc)

No idea where I am going wrong :-(

My knowledge of C is very limited so I'm a bit stuck

As far as I understand, if I can compile it, I can reference it in the Prickle 7800 BASIC program

Purity2017-04-14 20:30:46

 

[philmurr]

I've found two snippets of code, both look like they are written in C

http://atariage.com/forums/topic/146725-detecting-pokey
http://7800.8bitdev.org/index.php/Detecting_POKEY

This will test the random number part of the Pokey.

They're 6502 assembly language. Shouldn't be too hard to expand them to test more functionality of the Pokey

https://archive.org/stream/Programming_the_6502/Programming_the_6502_djvu.txt

 

[Purity]

I've also tried to compile it via some 6502 compilers, and still no joy :-(

I will try again

 

[philmurr]

There are some variables that you need to declare in zero page (pokeybaselo, pokeybasehi and pokeydetected) and (PAUDCTL, PSKCTL, PRANDOM, gamepokeydetected) otherwise the assembler will fail.

Edit: sorry to clarify, paudctl, pskctl & prandom are addresses used to communicate with the pokey, they're defined in the programme at http://7800.8bitdev.org but not in the other
philmurr2017-04-14 21:15:41