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HP97 The journey begins
08-05-2020, 04:33 AM
Post: #281
RE: HP97 The journey begins
(07-02-2020 02:56 AM)teenix Wrote:  I still have 8 key functions to fill.

If you're still looking for functions, how about vector addition, subtraction, multiplication and division? Extra bonus if you can implement a full vector per register ala the 48 series. It's much easier to keep track of than spreading each vector across 2 registers.

Of course polar and rectangular settings would apply.

If nothing else, these are interesting problems to solve while you're stranded. Hope you get home soon.

Brad
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08-05-2020, 09:24 AM
Post: #282
RE: HP97 The journey begins
(08-05-2020 04:33 AM)Brad Barton Wrote:  If you're still looking for functions, how about vector addition, subtraction, multiplication and division? Extra bonus if you can implement a full vector per register ala the 48 series. It's much easier to keep track of than spreading each vector across 2 registers.

Of course polar and rectangular settings would apply.

If nothing else, these are interesting problems to solve while you're stranded. Hope you get home soon.

Brad

Full up Smile

With plenty of memory and program space, I'm sure programs could be sorted out.

As an aside, I've found a single chip solution to implementing the CX on a 67 replacement CPU board. As well as the replacement 67 software, I've implemented all the HP calculator cores that are required to run the CX. A mind boggling amount to go though, if time permits.

cheers

Tony
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08-05-2020, 08:31 PM
Post: #283
RE: HP97 The journey begins
(08-05-2020 09:24 AM)teenix Wrote:  
(08-05-2020 04:33 AM)Brad Barton Wrote:  If you're still looking for functions, how about vector addition, subtraction, multiplication and division? Extra bonus if you can implement a full vector per register ala the 48 series. It's much easier to keep track of than spreading each vector across 2 registers.

Of course polar and rectangular settings would apply.

If nothing else, these are interesting problems to solve while you're stranded. Hope you get home soon.

Brad

Full up Smile

With plenty of memory and program space, I'm sure programs could be sorted out.

As an aside, I've found a single chip solution to implementing the CX on a 67 replacement CPU board. As well as the replacement 67 software, I've implemented all the HP calculator cores that are required to run the CX. A mind boggling amount to go though, if time permits.

cheers

Tony
That would be so cool to have. My collection is pretty much complete, bit I think that is one that I would have to have.

Thanks again for all the effort you are putting in Tony!

Cheers,
Harald
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08-05-2020, 09:12 PM
Post: #284
RE: HP97 The journey begins
The market price of a HP67 will rise to immeasurable heights. Especially with the defective models :-|

Tony, please wait until we all have a second for the upgrade ;-)
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08-06-2020, 12:12 AM
Post: #285
RE: HP97 The journey begins
I've been keeping an eye out for a non-functional 67, they seem to be pretty rare.

Pauli
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08-08-2020, 12:18 PM
Post: #286
RE: HP97 The journey begins
(08-05-2020 09:24 AM)teenix Wrote:  
(08-05-2020 04:33 AM)Brad Barton Wrote:  If you're still looking for functions, how about vector addition, subtraction, multiplication and division? Extra bonus if you can implement a full vector per register ala the 48 series. It's much easier to keep track of than spreading each vector across 2 registers.

Of course polar and rectangular settings would apply.

If nothing else, these are interesting problems to solve while you're stranded. Hope you get home soon.

Brad

Full up Smile

With plenty of memory and program space, I'm sure programs could be sorted out.

As an aside, I've found a single chip solution to implementing the CX on a 67 replacement CPU board. As well as the replacement 67 software, I've implemented all the HP calculator cores that are required to run the CX. A mind boggling amount to go though, if time permits.

cheers

Tony

Great!
Already in queue...

Greetings,
    Massimo

-+×÷ ↔ left is right and right is wrong
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