John Poltorak wrote in a message to David Noon:

 JP> I was brought up on mainframe assembler, but could never get
 JP> the hang of it on PC's... The idea that a word was two bytes
 JP> was something I couldn't come to terms with :-).

That should take you maybe a whole hour to get acclimated.

 JP> You wouldn't have come across a book such as 'PC Assembler
 JP> for mainframers' would you? It would be handy having such a
 JP> book...

I don't know of any good books on programming in assembly for OS/2, and I
can't even think of any good books on programming in assembly for protected
mode.  Most assembly books invest a great deal of time on how to manipulate
hardware, especially for graphics, since that is why most programmers want
to learn assembly.

Actually, programming in assembly under OS/2 (except for device drivers) is
quite a lot closer to programming in assembly on a mainframe than it is
under DOS, since the operating system provides a rich set of useful
services.  All of the OS/2 API is accessible from assembly language,
although it is stack based, so you don't have to worry about writing
directly to vido RAM and such.

It is extremely rare these days that I write a 32-bit routine in assembly.
 
-- Mike


---