Date   : Fri, 29 Apr 1988 16:11:29 EDT
From   : <SAGE@LL.ARPA>
Subject: Determining TPA Requirements of Programs

Richard Secrist asked about determining the amount of TPA that a program
needs.  There is no way in principle to do this.  Well written programs
test to make sure they have enough room and abort with a suitable message
if they don't.  On the other hand, there probably are not very many well
written programs (I certainly have not written too many of them!).
 
An experimental approach would involve zeroing out the TPA memory (for
example, with DDT), then running the program, and finally examining
memory to see what data got written where.  Under Z System it is easy
to examine memory without using any (with the RCP peek command), but there
is undoubtedly some way to do this under CP/M as well.