FPGA VAX update
bfranchuk at jetnet.ab.ca
Sun Oct 23 15:58:39 CDT 2005
Chuck Guzis wrote:
>Slightly OT: How fast (in comparison to the original 11/780) do PC-based
>emulators run? My only close-up exposure with this line was a couple of
>years with an 11/750. It didn't seem like a speed demon then.
The emulators run alot faster, but the problem is the 11 is still a
so I don't think we will get better new hardware out.
>If PC-based emulators are fast enough, why bother with the IC version? An
>intellectual exercise? Or will the FPGA version run an order of magnitude
>faster than the original?
I suspect about the same speed as PC's 15 years ago or 74Sxx speeds.
The real speed limit on computers
now days is the cache memory. A external bus depending on memory used
is the factor.
Most common memory is about 120 ns to 70 ns access time unless you want
to use the latest
>The marketeers didn't have a clue ("Do we make that?"). Apparently, if I'd
>wanted to buy a 6300, they'd put a dozen on a truck headed my way the next
>day. But one of their minis? A wall of ignorance. After absolutely no
>luck, I picked up the phone, talked to the local DEC marketer and had an
>11/750 the next week.
Ben alias woodelf.
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