🚀 go-pugleaf

Chris Austin <zcaccau> wrote:

>Is there any way to incorporate assemply language commands into modula-2 code,
>as there is in Pascal?  I use Topspeed modula-2.

>Thanks for any help.

Not as a standard language feature in either M2 or Pascal! Some Pascal
interpretations allow you to embed Assembler source directly in M2
source, but TopSpeed won't. You can write routines in a separate
module and provide an M2 definition module for them. You will need to
observe naming conventions, observe the M2 calling / parameter passing
conventions and handle addressing correctly for the memory model in
force. 

For V1.17 of TopSpeed (the "student" edition) this is straightforward
as these are fixed and you just have to observe the conventions. 

In V3.x you can include pragmas in your definition module to ensure
that the calling conventions used by the client modules match those
assumed by your Assembler code. If you are writing general purpose
code which accesses memory, you will need to use conditional assembly
to generate correct code for the model in use.

For either version you will probably need the TechKit add-on which
provides the documentation for the Assembler and assembly program
issues. This also gives you TopSpeed's rather naff assembler - you
could of course use another one, though this might involve more
trouble than it's worth for little bits of hand-crafted code.


Martin Rand            | Tel: (44) 1703 252445 |
Highfield Software Ltd | Fax: (44) 1703 252445 |
Southampton, UK        |                       |