Re: RE: Space Wars

On Thu, 03 Feb 2000 19:18:20 PST, "Clay Cowgill" <vector_clay@hotmail.com>
wrote:

>>I was told by a distributor at the last company I worked at (about a year
>>ago)
>>that the two highest selling CPU's (and their derivatives) are the 6502 and
>>Z80.
>
>I believe that. If you count the Z-8, Z-180 and derivatives the Z-80 is
>probably king of the hill by itself even. I think the 6502 is mostly used
>as a core now-a-days though. I couldn't tell you the last time I saw just a
>plain "6502" in something. I don't think I've *ever* seen one in surface
>mount.

True, and I'm sure that's what he meant.

>>The same guy told me that WDC supposedly has a VHDL core for the 6502 that
>>runs in excess of 150mhz. Would that be fast enough? ;^)
>
>Probably not... ;-) You'd have to add a bunch of zero-wait on-chip RAM to
>copy the code into to keep from being bogged down by memory waits. (That was
>a big problem with the C3900 and the like-- a 56MHz 6502 needs data pretty
>quick. We ran with 45ns FlashROM and still had external wait-states. Our
>snazzy modems [SupraSonic] copied everything into 12ns SRAM and ran with no
>external wait cycles to get better compression on the V.42bis engine.)

Yeah, I thought the same thing, it could be that it had internal SRAM (like the
Scenix), but more likely just "sales" talk. ;^)

-Zonn
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Received on Fri Feb 4 04:59:04 2000