Thanks... I've been looking for this for a while...

Found the info I needed at http://www.atarimagazines.com/compute/issue30/092_1_Part_I_How_To_Use_SYS_And_USR.php I needed this information because I'm converting J.D. Casten's East80 ML routine to Quick. I'll be the first to admit that 6502 assembler is not my strong point, but it's only 270 bytes l...

Head on over to http://www.dcemu.co.uk

On PS2, there only seems to be a 5200 emulator

You'll find an Atari computer emulator for PSP, XBOX, and Dreamcast

I've only tried the PS2 5200 emulator and Dreamcast atari800 emulator successfully. Never tried other versions.

I've been looking for some detailed info regarding the Atari Basic USR command. What I need to know is how parameters are passed. If I have a routine called with say: U=USR(ADR(STRINGWITHML$),ADR(STRINGWITHDATA$),ADDRESS,LENGTH,X,Y) How are they sent. I know that the you need to include a PLA at the...