How to load ADVENT on PDP-8? - test-drb@ccmp.vtda.org

2 Dec 2005

At 02:36 AM 12/2/2005, Gooijen, Henk wrote:
...
 I tried to run ADVENT on my 6809-based PDP8/e
simulation, but
it did not work.  I asked Dough and he told me that ADVENT
stores its files using the *physical address* on the disk.
So, if you copy the files and they end up on a different
location on your target disk, ADVENT is not able to read them.

This is from memory, and I could be wrong ... 
Nope, you're right. Basically, it's a FORTRAN program that has some 
files open then suspends itself. You save the suspended program then 
resume it; since it doesn't close and reopen the files, it reads from 
where it thinks the file is located. However, what happens in that case 
is that the program displays garbage rather than the expected text - 
that shouldn't crash the emulator.
         -Rick