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Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Jiaqi Wu  Account Info

TI should probably make a special calculator CPU since it would be better suited for a calculator since it would be designed for a calculator. It would probably be better to make a NEW slow and efficient CPU rather than just using really old slow ones.

Reply to this comment    20 April 2005, 02:56 GMT

Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
CajunLuke  Account Info
(Web Page)

But WAY more expensive. THe cheapest the first calc with a custom processor could be is 500 USD. Nobody'll buy it, it'll be awhile before anybody can program in other than BASIC for it.

It would be an absolutely pointless waste of time, money, and R&D power.

Reply to this comment    20 April 2005, 13:13 GMT


Re: Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Andy Janata  Account Info
(Web Page)

LIES! The TI-80 had a proprietary processor, and it wasn't near that expensive.

Reply to this comment    20 April 2005, 23:02 GMT


Re: Re: Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Shawn Zhang Account Info

Uh... The TI-80 sucked though...

Reply to this comment    21 April 2005, 18:57 GMT


Re: Re: Re: Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
JcN  Account Info
(Web Page)

120d//!

Reply to this comment    25 April 2005, 03:58 GMT


Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
burntfuse  Account Info
(Web Page)

Uh...I see that you haven't tried designing a processor anytime recently...

While you're at it, why not just stick in a couple low-power FPGAs, one with a hardwired OS, and just let users configure their own programs in the other FPGA? It would be a lot faster than software, and I think there are programs that create VHDL code from C. :-p

Reply to this comment    20 April 2005, 21:45 GMT

Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
DWedit  Account Info
(Web Page)

I'd definately say ARM. RISC instructions are so nice to work with.

Reply to this comment    20 April 2005, 05:14 GMT


Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Andy Janata  Account Info
(Web Page)

Yeah, they need to grab the ARM. :) Maybe do what HP does and make it back-compatible with the 89.

Reply to this comment    20 April 2005, 16:27 GMT

Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Matt M Account Info

How 'bout Pentium? er Ok, I know that would get too hot. But I have a old mac that has a 20Mhz Moderola (no, its not spelld right) processor and it seems fast...faster than ti's calc programs...

Reply to this comment    20 April 2005, 13:43 GMT


Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Andy Janata  Account Info
(Web Page)

Actually, an underclocked PI would probably work just fine (albeit they are somewhat large).

Reply to this comment    20 April 2005, 16:27 GMT

Re: Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Shawn Zhang Account Info

How much underclocked? The first ones ran at I think 20MHz

Reply to this comment    20 April 2005, 20:35 GMT


Re: Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
burntfuse  Account Info
(Web Page)

The size is the main problem with using an underclocked early Pentium, or 386, or 286, even if it doesn't use much power or get hot - there would be serious problems just fitting it in the case! And imagine stuffing northbridge and southbridge chips in there too to interface with the processor...or TI would have to design their own custom ASIC for connecting the memory, linkport, and LCD with the FSB.

Reply to this comment    20 April 2005, 21:48 GMT

Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
matt zelda  Account Info

i think they should definately get a new cpu. a new programminig language could give newbs (like myself) a head start on the veterans so we could see some variety in the programmers

Reply to this comment    21 April 2005, 18:01 GMT

Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
JcN  Account Info
(Web Page)

n00b alert!

Reply to this comment    25 April 2005, 04:00 GMT


Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Chris Williams  Account Info

Naw, the "veterans" will learn the language quickly and won't wait for the n00bs to catch up. It's the way it's always been and always will be.

There's much more to programming than just learning a language.

Reply to this comment    25 April 2005, 18:07 GMT


Re: Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
no_one_2000_  Account Info
(Web Page)

Yep, the more languages you know, the faster you can pick up another one. It just works that way.

Reply to this comment    26 April 2005, 13:16 GMT

Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Paul Houser Account Info
(Web Page)

StrongARM, baby!

That would take up too much power I suppose, but the HP-49G+ has an ARM running at 75Mhz.

Reply to this comment    21 April 2005, 22:57 GMT


Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Geek Account Info

The HP49g+ is a nice calc, but its resolution, OS, and
adaptability are not so great,(nothing against HP!!) atleast in my "research".

Reply to this comment    25 April 2005, 01:37 GMT

Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
randrews Account Info

XScale. It has a bunch of stuff on the chip, everything from a USB host to a controller for a VGA screen, and is already used in portable systems (the Axim PDA, for example).

Reply to this comment    22 April 2005, 06:21 GMT

Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Kevin Kofler Account Info
(Web Page)

68k of course! It's nice to program in assembly, and it's easy to retarget TIGCC for another 68k-based calculator.

Reply to this comment    22 April 2005, 23:35 GMT

Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Chris Williams  Account Info

I'd like to see a 68030 (or higher) chip in the next calcs, and then you'd just have to change the floating-point stuff in TIGCC.

Floating point arithmetic would be a lot faster on the calculator with a built-in coprocessor.

Reply to this comment    25 April 2005, 00:16 GMT


Re: Re: Which type of CPU would you like to see on a new TI calculator: z80 or 68K?
Chris Williams  Account Info

Actually, the _68040_ and higher have floating-point support built-in. My bad. The 68020 and up have memory management units, though, which would be really nice to write a real OS for the calculator!

Reply to this comment    25 April 2005, 00:26 GMT

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