Search found 393 matches

by grsbanks
Sun Oct 14, 2018 10:08 am
Forum: Usage tips, tricks and problem reports
Topic: Foating point bug
Replies: 2
Views: 189

Re: Foating point bug

The bug in V3.10 occurred when raising a number to a power that is an integer. The program you've been using for this does use the 'Y^X' function, so that could be the cause.
by grsbanks
Thu Oct 11, 2018 11:43 am
Forum: Update Announcements
Topic: UPDATE: DMCP-3.10 / DM42-3.10
Replies: 71
Views: 1998

Re: UPDATE: DMCP-3.10 / DM42-3.10

OK everyone, Check this: viewtopic.php?f=16&t=1997
by grsbanks
Thu Oct 11, 2018 10:43 am
Forum: Update Announcements
Topic: UPDATE: DMCP-3.11 / DM42-3.11
Replies: 20
Views: 869

UPDATE: DMCP-3.11 / DM42-3.11

This latest update to both the DMCP and DM42/Free42 parts of the DM42's firmware brings the following improvements: DMCP-3.11 Clock switching bug when connecting to USB DM42-3.11 Revert to Intel® Decimal Floating Point Library V2.0 Update 1 Fix for Alpha input/display when first character is '÷' Cl...
by grsbanks
Thu Oct 11, 2018 10:04 am
Forum: Hardware issues
Topic: Battery life
Replies: 28
Views: 1774

Re: Battery life

There are a few units out in the wild that the fix didn't.. well... fix.

I would advise you to get in touch with michael@swissmicros.com for what to do next.
by grsbanks
Thu Oct 11, 2018 7:07 am
Forum: Hardware issues
Topic: Battery life
Replies: 28
Views: 1774

Re: Battery life

Yes, if you're running a version earlier than 3.5 then you have to update using the legacy method. Only versions 3.5 and later give you the possibility of flashing a .bin file residing on the FAT drive.
by grsbanks
Thu Oct 11, 2018 4:46 am
Forum: DM42
Topic: Any way to get the date/time?
Replies: 1
Views: 120

Re: Any way to get the date/time?

Free42 and therefore the DM42 does already emulate some of the HP-41's Time Module functions: http://thomasokken.com/free42/extensions.html
by grsbanks
Wed Oct 10, 2018 5:10 pm
Forum: Update Announcements
Topic: UPDATE: DMCP-3.10 / DM42-3.10
Replies: 71
Views: 1998

Re: UPDATE: DMCP-3.10 / DM42-3.10

Special-case code for integer exponents, using recursive repeated squaring. What happens when you calculate 5^(1e10 + 0.0001)? I won't have time to test this tonight -- I have to go out -- but I'm not convinced this is going to have much to do with it unless it's just plain buggy. It uses recursive...
by grsbanks
Wed Oct 10, 2018 3:34 pm
Forum: Update Announcements
Topic: UPDATE: DMCP-3.10 / DM42-3.10
Replies: 71
Views: 1998

Re: UPDATE: DMCP-3.10 / DM42-3.10

Yikes. Does it crash inside bid128_pow()? I can't say for sure because I don't have that level of access to the DM42 platform. This said, one user that I passed a test firmware version to reported that both types of crash ceased when using that firmware. The only difference between the current 3.10...
by grsbanks
Wed Oct 10, 2018 8:32 am
Forum: Update Announcements
Topic: UPDATE: DMCP-3.10 / DM42-3.10
Replies: 71
Views: 1998

Re: UPDATE: DMCP-3.10 / DM42-3.10

OK, we've found the cause of the Y^X crash. It's the updated Intel Decimal Floating Point Library. A version of DM42 built against library 2.0u2 hangs, one built against 2.0u1 does not hang. This is reproducible 100% for us and the compiler optimisations make no difference. Noteworthy is the fact th...
by grsbanks
Wed Oct 10, 2018 5:33 am
Forum: Update Announcements
Topic: UPDATE: DMCP-3.10 / DM42-3.10
Replies: 71
Views: 1998

Re: UPDATE: DMCP-3.10 / DM42-3.10

Thanks all for the feedback. I'm passing this info along.