OS/8 FORTRAN IV saving?
mcguire at neurotica.com
Fri Aug 27 01:39:37 CDT 2010
On 8/26/10 8:59 PM, Rick Murphy wrote:
>> 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 thought that was found a couple of years ago? Or was that
> 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
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.
Port Charlotte, FL
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