OT-ish, Museums and MP3s Re: Museum interpretations

[bfranchuk at jetnet.ab.ca]

Dave McGuire wrote:
> On May 22, 2009, at 12:45 AM, bfranchuk at jetnet.ab.ca wrote:
>>>   What sort of density are you looking for?  I've seen some really 
>>> nice 16Kx1 SRAM chips made by Inmos.  Or you could implement a DRAM 
>>> controller in your FPGA and do it that way, with 1-bit-wide DRAM chips.
>>
>> I am looking at about 32K 18 bit word  memory on small single board
>> computer, some thing around the size of a PDP 8/e in functionality but 
>> 18 rather than 12 bits.
>> I am looking to add modern features (1968 ish) like character addressable
>> memory, Stack and Index registers as well as # data.
>> Memory, Uart and CPU I can get on one PCB as well as simple IDE 
>> interface.
>> The other PCB will be the 18 bit front panel with the MAR,MBR and AC 
>> displayed
>> connected via ribbon cable.
>> Ben.
>>
>>>            -Dave
>> Ps.
>> Since this is a small computer, hardware support of floating point is 
>> NOT a
>> option. :)
> 
>   You could probably interface something like an 8087 to that.  Their 
> architecture is actually kinda nice, IMO.

Unlikely , but the 8087 sold a lot PC's. I have Knuth's books so I can at
least write some floating point software. Ben.

>             -Dave
>