DSXchange

1)

Ray Wurlod wrote:(b) Correct. But the arguments to SETPTR are purely numeric.

So its ONLY the values in FMT plays the role, Whatever (low) values for Line Length and Number of Lines per Page in SETPTR wouldn't matter.

2)
The documentatin for SETPTR
http://infotools.ru/uv/09/0916.htm

and FMT in pdf of BASIC

doesnt mention maximum possible values. Where can we find them? especially for FMT as it is mainly responsible.

Technical limits for the product are largely undocumented. You just have to bump into them and then be advised by support that the limit exists.

Thanks for all your help. Wouldn't have reached this far without your help.