... big-endian processors aren't terribly bizarre -- just different.
Please keep in mind that my post was somewhat tongue-in-cheek. I had hoped the hackneyed "lemming" reference would have been a tip-off.

The existance of little-endian has absolutely zero to do with our reading left-to-right.
I ...

There isn't any even/odd effect going on, don't get hung up there.

Without rehashing decades of big-endian/little-endian arguments (please, no flames, I'm just trying to help here), here is one rationalization leading to an aid to visualization:

Rationalization

We in the west are used to a left ...

Well this just leads me to another topic I haven't found much on. Once again, I apologize if this has already been discussed here and I've simply missed it.

Are there any microcontrollers using 6502/816 cores generic enough to be of hobbyist or general product-development interest? Something ...

This looks like a nasty limitation preventing 65C816 use at high speeds. I'm not sure I feel too comfortable with some delay-line solution either. I see the PLCC package doesn't have the address-multiplexing issue the 40-pin DIP does, so now I understand another reason why the PLCC version is so ...

JDR http://www.jdr.com lists these at $4.89 each under 8000-series ICs.

So it sounds like single-65C02 systems should let RDY float or pull it up through 2.2K ohms.

Sure is a lot of chaos here. 6502 handled RDY one way, R65C02 didn't even have a BE input (though R65C102 did?), neither Rockwell processor had the WAI instruction, and while the W65C02S has WAI, RDY, and ...

These things come and go. You'd think by now we'd have a substitute for the typewriter-style keyboard, but either there just isn't one or our imagination is too limited.

That frog thing looks familiar in some way. What little I can get out of the small images on that web site reminds me of the ...

Is anybody using the 16-bit arithmetic micro-interpreter that Woz developed for the Apple II in their own software on other 65xx systems?

Is is obsolete? Too funky? Are there better alternatives? Anyone know the status of Apple's 1977 Copyright? Does the 65C816 totally obsolete it?

Source listing ...

I received a few of those 8-slot, 8-bit ISA powered backplanes today. These should easily drop into 8-slot Baby AT cabinets.

For the most part this is just a row of 8 XT slot connectors, an XT/AT power connector with supplies bussed to each slot, and a few small ceramic bypass capacitors for the ...

Thanks Garth, valuable input.

One factor that seems important today is keeping the parts count down even if it means a slight cost penalty. This has always been beneficial in terms of board size, board interconnections, reliability (mostly due to those interconnections), and for anything mass ...

Oh, and the shadowing technique goes further...

Since in run-mode the upper 8K of RAM (minus the I/O chip space) is really running code that'd normally be in ROM anyway... you can locate video RAM there for designs supporting memory-mapped video. The program code would be read from these RAM ...

Sure, bank-switching is a typical way to add to the address space of 8-bit processors. The C64 did something similar on a small scale.

There are also "shadowing" functions one can implement. I'm looking at a design with 64K of SRAM and 8K of EEPROM. The I/O space would occupy about 1K up at the ...

Vanguard Electronics at http://www.vanguardelectronics.com/index.cfm seems to list several '816s in their inventory. They show the 65C816S8P-14 at 30 units in stock. Located in Wading River, NY, USA. They also mention "world-wide" stocking on their home page.

No idea about pricing, or whether they ...

Thanks for these answers.

As for expansion buses in general, there has been quite a bit of discussion about it on all three discussion groups that 6502.org gives the links to if you click on "Discussion Groups" from the opening page. I'm sure anyone interested could benefit from taking a few ...

Here's the scenario.

I'm not above some hardware hacking, but I'm really more interested in the software side of the 65XX processor family. I'd like to have a shot at interfacing some newer I/O devices, but wouldn't mind helping put in more of the "sweat" on the software side of this too.

Plinking ...