About PSP in assembly language programming

[abha]

Hello, If any one could tell what actually a PSP is i.e. program
segment prefix.. how it is useful in while simulating DOS copy command
in assembly language???

 

[Jonathan Kirwan]

Hello, If any one could tell what actually a PSP is i.e. program
segment prefix..

This is fairly well documented in

http://publib-b.boulder.ibm.com/Redbooks.nsf/RedbookAbstracts/gg244459.html?Open

Which is linked to by my page at the top of:
http://users.easystreet.com/jkirwan/new/pcdocs.html

The direct link for the PDF is:
http://www.redbooks.ibm.com/redbooks/pdfs/gg244459.pdf

how it is useful in while simulating DOS copy command
in assembly language???

Fairly useful. Why are you asking, though? Hard to know what to say,
otherwise.

Jon

 

[jasen]

Hello, If any one could tell what actually a PSP is i.e. program
segment prefix.. how it is useful in while simulating DOS copy command
in assembly language???

it's the place where DOS store the command-line options.

Also you'll find two prepared FCBs there.


All this, and more, is covered in detail in Ralf Brown's Interrupt list,
(google will get you to it)

Bye.
Jasen