[comp.lang.pascal] Turbo Pascal 5.0 TPU portability

ts@chyde.uwasa.fi (Timo Salmi LASK) (05/17/89)

I had the following curious incident after changing my computer from
a 286 to 386.  I use Turbo Pascal 5.0, and have a TPU collection of
my most used routines which I use as a unit in many of my programs. 
I ported (among the other files) my TPU unit to my new machine.  (I
did not recompile it, but ported the old one.) When compiling
programs using this unit the following thing happened.  When I tried
to run the program in the Turbo Pascal environment (ALT-R), the
program wanted that there be a disk in drive A.  This only took
place within the Turbo Pascal environment, not outside it, and I
think that the problem has disappeared after I recompiled my TPU
unit in 386.  No problem anymore, but I am curious why this
happened.  There still is a serious side to this even if my problem
is now solved, because this started me thinking about implications
on the portability of precompiled tpu units. 

...................................................................
Prof. Timo Salmi
School of Business Studies, University of Vaasa, SF-65101, Finland
Internet: ts@chyde.uwasa.fi Funet: vakk::salmi Bitnet: salmi@finfun