Re: PC Transporter OS

[Roy Miller <millers@inebraska.com>]

Mitchell Spector wrote:

>
>     Heh, how about getting this back on topic. Did you know the
> 65C816 was internally 8-bits wide while externally 16-bits wide?

I believe you have that backwards. The 816, like the 8088 was 16 bit,
internally, but when it came time to talk the outside world, they do it through
an 8 bit wide data bus.

You said something similar about the 386 SX vs DX (does anyone remember that
the first 386 was a "DX" but didn't carry the initials because there wasn't an
SX yet?) Both chips are 32 bits internally, but the SX (like the 68000, and the
80286) spoke to the outside world through a 16 bit bus.

>
> That makes it a hybrid 8/16 CPU, much like the Intel 8088. I've
> always wondered if for that reason it's technically correct to call
> the Apple IIGS (or SuperNintendo) a true 16-bit machine. By
> contrast the Amiga and first Macs used hybrid 16/32 68000's
> and were considered 16-bit machines.
>
> Mitchell Spector
> a_specto@alcor.concordia.ca

Roy