On Sat, Sep 22, 2018 at 11:38 AM David Gesswein via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
On Sat, Sep 22, 2018 at 10:40:34AM -0500, Kyle Owen via vcf-midatlantic wrote:
I sent this over to cctalk and haven't found a taker to try out my FORTRAN code on another PDP-8 yet. Might any of you be able to try this out?
Should be able to next week if nobody else does first.
Thank you!
I tried running a simple program to print some natural logs and square roots, which ran quite well with the FPP8/A in place.
Without the FPP8/A...all of the results were wrong. Significantly. Negative numbers in many cases. No clear pattern as to what it's doing.
Are you are recompiling each time and not using a save file? The save file is only valid for the configuration it was built on.
Yes, recompiling each time.
Would anyone be able to try my program on some other real hardware (or another emulator) to verify? With and without EAE would also be desirable. I'm not sure how to disable the EAE in SIMH, else I'd try that too.
set cpu noeae
Ahh...excellent. Thanks! Kyle