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Hi All,

What do you think about an emulator for the TI-58 that runs in RPN??? The idea may shock you, but think about it again? I am willing to do it if Paul Houbert, the author of the TI-58C emulator is willing to help with some ground work.

The proposed emulator would be like the HP-67 married the TI-58/59 and they had a child!

Namir

Edited: 13 Sept 2012, 12:32 p.m. after one or more responses were posted

I'm not sure if I got you right: A TI-58 with RPN entry logic? I've often thought how great a calculator xyz could have been if it only were RPN (my absolute favourite would be the Commodore SR4190R/SR9190R).

On a second thought, I fear feature creep. Certainly I would put more and more into it if I were the master of such a project :-D.

Nice idea! :-)

Edited: 13 Sept 2012, 12:15 p.m.

Pierre Houbert has really and truly masted the interface and offers tons of skins for his excellent TI-58C emulator. My favorite skins are those of the HP-65 and TI-88!! If he is using Visual Basic, I will need the basic GUI code to interface with clicking the various buttons. I have written an HP-67 emulator, so I have the code that I can adapt for the TI-58C and support what happens AFTER you click the buttons.

:-)

Namir

So the TI-58C RPN would have code like this? = is ENTER below. This is stupid code and does nothing but ... X<>Y and Roll Down would have to be mapped to what? ( and ) ?

LBL A
5
=
6
SBR
SIN
*
R/S

LBL SIN
SIN
INV SBR

Hello!

Quote:
The proposed emulator would be like the HP-67 married the TI-58/59 and they had a child!

I don't know. I like the Hp-67 very much and I like my Ti-59 (never had a 58) very much, but I strongly doubt that I will like their children. My favourite function on the Hp-67 is HMS+ and my favourite function of the Ti is "(" (and ")" together with operator precedence - Ti calls this combination AOS :-) ) and the children will have neither.

The very very best feature of those two calculators however is the physical keyboard of the HP-67 and it's physical LED display. No emulator can come remotely close to those, so wasted effort as far as I am concerned.

Regards - max

Edited: 13 Sept 2012, 1:24 p.m.

Interesting idea. I'll admit that I wouldn't use it myself, but don't let me discourage you :).

I do have some questions though. Would algebraic entry still be possible, or only RPN? If only RPN, then that means existing programs wouldn't work, right? Or am I missing something?

How deep would the stack be? As I recall, the 58C allows 9 levels of nested parentheses, which means a 9-level stack.

Dave

You are correct!

The RPN version of the TI-58/59 is certainly not compatible with the AOS version. The stack is 4-elements high. I might call the registers, X, T, U, V where V is the logical bottom of the stack. I am using the names X and T for the logical top two registers so that the key X<>t would be like X<>Y on HP calculators. The ( and ) keys would be something like Roll Down and Roll Up.

namir

Edited: 13 Sept 2012, 7:04 p.m.

I think one of the strong points of the TI were the solid state software modules. This software would need a complete rewrite (or an AOS mode).

Hmmmmmmmm ... you got me there!!!!

:-(

Namir

Quote:
Hi All,

What do you think about an emulator for the TI-58 that runs in RPN??? The idea may shock you, but think about it again? I am willing to do it if Paul Houbert, the author of the TI-58C emulator is willing to help with some ground work.

The proposed emulator would be like the HP-67 married the TI-58/59 and they had a child!

Namir



Go for it.