SwissMicros Calculator Forum

Where's the one with Klaatu? I know you have it!
Werner

I'm not sure I fully grasp that - but why would a whole program be slowed down when it is shifted by 1 byte? The number of 'whole' registers would change by max 1.. Edit: If a loop starts at a register boundary, there is less overhead to start at the exact byte. And in my 10-minute example, the inne...

I observe the same 0.4% variation in timings depending on the number of 1-byte instructions added, in a 25-second program and a 10-minute one. And both repeat after 7 bytes have been added.
Subsequent timings of the same program vary much less than that, if at all.
Cheers, Werner

what happen if you continue to insert 1, 2, 3, 4, 5, 6, 7, 8 … ENTER instructions ? That's a good suggestion. # time 0 25.12 1 25.02 2 25.10 3 25.02 4 25.00 5 24.99 6 24.98 7 25.12 8 25.01 9 25.10 10 25.01 11 25.00 12 25.01 13 24.98 we see a pattern here, not surprisingly. Timings more or less repe...

Hello Didier, no - the change is about 0.4%, I have seen it in other, much longer programs as well (10 minutes, where the difference is 2.5 seconds). The search for label T is in the microsecond range, no matter where it resides. Moreover, I have put TVAL before and after the routine "T" i...

Devise a loop that will take exactly 25 seconds to run, eg: LBL"T" PI LBL 02 E^X LN DSE Y GTO 02 END using a timing program such as this: LBL"TVAL" 0 SETSW RDN ASTO L "RUNNING" AVIEW CLA ARCL L RUNSW XEQ IND L RCLSW STOPSW FIX 6 CLD END This TVAL program is the first in...

You missed the smiley at the end, Walter
Cheers, Werner

J-F Garnier wrote: ↑

Tue Jun 13, 2023 10:44 am

don't trust your 34-digit machine to always give you a 34-digit accurate result.

.. but it *is* accurate to 34 digits

Werner

ctrclckws wrote: ↑

Tue May 30, 2023 1:59 pm

The DM42 is an emulator of the HP-42s.

No, it's a simulator; but an extremely good one
Werner

Solving systems of linear equations and matrix inversion start with an LU-decomposition - but the decomposition itself is not accessible.
Cheers, Werner