12/24-bit CPUs, was Re: Oregon Software Pascal/2

[woodelf]

Dave McGuire wrote:

> On Oct 13, 2006, at 2:32 PM, woodelf wrote:
> 
>> So how many people have a working 24 bit computer on *this* list
>> at home or in storage? I may end up building a 24/12 bit design
>> ( the PCB layout and hardware design is my problem ) but designing
>> a schematic is not.
> 
> 
>   I'd be happy to take care of that end if you're interested in a  
> collaborative effort.

Well for now it is mostly sketched out on Quad Paper.
It is a 12/24 bit CPU that is similar to the 6809 but only
can be clocked to 5 Mhz. It is classic in that is about 1960's
to 1970's time frame in that it does not have flags rather
branches on testing of the AC. It just has single carry flag.
I can get you the opcode and other stuff in a few days as
dig out my papers. A mother board, 2 Alu cards, 1 control card
1 I/O card ( 6800 I/O ), 1 memory card ( 1 meg - static )
1 front panel card & leds.

>             -Dave
>