[Coco] USRx() and adding more parameters?

[Andrew Ayers]

If you only have one particular type, I think you might be able to pass 
an array? Just reference the array variable (I think) and beyond that I 
don't know where you go with it (that is, how you get the array contents 
on the ML side).

Another possibility might be to create a string variable, then use 
VARPTR to get it's address...then break it up into "fields" and pass 
everything as part of that string - ie, say you set a string to be 9 
characters long, but you wanted to pass a name and a number, you could 
do something like A$="Andrew123" - of course, you'd have to split it 
apart then parse each portion, and fields would be "fixed length".

Or maybe you could reserve the space in a similar manner, then use the 
VARPTR address and knowing the size, POKE the values you need? It'd be 
something like string-packing for POKEing in an ML program in BASIC, but 
instead you'd use it as a means to pass parameters to your ML program...

These are all ideas/guesses - I've never tried any of 'em...

Andrew L. Ayers
Glendale, Arizona
phoenixgarage.org
github.com/andrew-ayers