Which Dec Emulation is the MOST useful and Versatile?

[Jay Jaeger]

On 10/27/2017 1:46 PM, ben via cctech wrote:
> On 10/27/2017 9:27 AM, Jay Jaeger via cctech wrote:
> 
> 
> With some FPGA venders you could get a TTL library components,
> so you could input older designs. You may have to dig around for them
> because that is not a NEW selling feature any more. Also logic
> cells don't have asynchronous  set and clear anymore.
> 
> Ben.
> 

I suppose, though writing a little HDL to provide the function of a TTL
gate isn't very hard.  As it turns out, the design I replicated from my
college days was actually DTL, rather than TTL.  The lab consisted of 4
19" racks with interconnecting, differentially driven cables.  Each rack
had a card cage, and interconnections were done using re-purposed IBM
unit-record plugboards.  The current project, the IBM 1410, was
originally designed using IBM SMS - discrete transistors.