HP Calculator Emulators for the Commodore 64 and ATARI 800XL

[Craig Bladow]

Norbert Kehrer was interviewed recently on the FloppyDays Vintage Computing Podcast, episode 96, by Randy Kindig. Where it was mentioned he wrote a series of HP calculator emulators (35,45,55,80) for the Commodore and Atari computers! You can read about them here: http://members.aon.at/nkehrer/a800_c64_hp_emu.html

I'm very impressed with the HP-45 emulator I'm running on a real Commodore 64 at the moment.

[charger73]

Thank you for this link. Cool emulators for a cool computer ;-)
Tobie

[Dave Britten]

That's a pretty interesting find. I'll have to put these on my Pi1541 sometime.

[TomC]

AWEsome!!!

TomC

(01-03-2020 04:37 AM)Craig Bladow Wrote:  Norbert Kehrer was interviewed recently on the FloppyDays Vintage Computing Podcast, episode 96, by Randy Kindig. Where it was mentioned he wrote a series of HP calculator emulators (35,45,55,80) for the Commodore and Atari computers! You can read about them here: http://members.aon.at/nkehrer/a800_c64_hp_emu.html

I'm very impressed with the HP-45 emulator I'm running on a real Commodore 64 at the moment.

[Craig Bladow]

(01-03-2020 01:28 PM)Dave Britten Wrote:  That's a pretty interesting find. I'll have to put these on my Pi1541 sometime.

I'm loading them from a Pi1541 too!

[grsbanks]

Brilliant -- the HP 35 emulator even has the e^(ln(2.02))=2 bug

Using them with VICE: http://vice-emu.sourceforge.net/

[Dave Britten]

I just had a chance to play around with the HP-55 emulator on my C64 tonight. The sharpness of the digits is outstanding with the new s-video cable I bought. I typed in the direct reduction loan program from the 55 Mathematics book and calculated a payment amount.

Anybody benchmarked these against the real things yet? The 55 emulator seemed pretty responsive, but I don't have a real 55 to compare it with. I think the 80 has a few routines that take some time to execute (like solving for i%). Those might make good tests.

[toml_12953]

(01-03-2020 04:37 AM)Craig Bladow Wrote:  Norbert Kehrer was interviewed recently on the FloppyDays Vintage Computing Podcast, episode 96, by Randy Kindig. Where it was mentioned he wrote a series of HP calculator emulators (35,45,55,80) for the Commodore and Atari computers! You can read about them here: http://members.aon.at/nkehrer/a800_c64_hp_emu.html

I'm very impressed with the HP-45 emulator I'm running on a real Commodore 64 at the moment.

Malwarebytes flags that site as having a trojan.

[Dave Britten]

(02-16-2020 01:54 AM)toml_12953 Wrote:  

(01-03-2020 04:37 AM)Craig Bladow Wrote:  Norbert Kehrer was interviewed recently on the FloppyDays Vintage Computing Podcast, episode 96, by Randy Kindig. Where it was mentioned he wrote a series of HP calculator emulators (35,45,55,80) for the Commodore and Atari computers! You can read about them here: http://members.aon.at/nkehrer/a800_c64_hp_emu.html

I'm very impressed with the HP-45 emulator I'm running on a real Commodore 64 at the moment.

Malwarebytes flags that site as having a trojan.

It might just be freaking out at the members.aon.at domain in general. Try it from here:

https://norbertkehrer.github.io/a800_c64_hp_emu.html

[Craig Bladow]

(02-16-2020 01:54 AM)toml_12953 Wrote:  Malwarebytes flags that site as having a trojan.

Hmmm, unlikely it's a C64 virus.

Google doesn't flag it, Sucuri.net gave it a passing grade. Maybe because its http and not https?