27 Aug
2010
27 Aug
'10
6:39 a.m.
On 8/26/10 8:59 PM, Rick Murphy wrote:
I thought that was found a couple of years ago? Or was that
something else?
I seem to
remember that it was possible to save a FORTRAN IV program
together with the FRTS runtime system as a runnable .SV core image
file. It seems that ADVENT does so...
Any idea?
That's the older version of OS/8 Adventure - it initialized then exited
to OS/8.
Unfortunately, the source for that has been lost, and I don't remember
how it worked. I think it repeated the "PDPXIT" entry point
in FRTS, didn't close
units, then exited. Upon restore, it re-enabled interrupts and continued.
Is it not possible to load a loader image (.LD) into FRTS, then exit
FRTS and save the whole shebang with SAVE SYS <filename> or something
along those lines? Not specific to ADVENT, but just in general. These
are very dusty neurons but I could swear I've done this before, 25 years
ago.
I played with it for a while tonight and got nowhere. Eventually I
figured out that one must likely do "RUN SYS FRTS" rather than just "R
FRTS" in order to load the CCB (and thus avoid the dreaded "CORE IMAGE
ERR" when executing the SAVE). Then I load my compiled .LD file into
FRTS, exit, and do SAVE SYS <filename>, but my resultant .SV files just
hang. This is just a simple "hello world" program.
-Dave
--
Dave McGuire
Port Charlotte, FL