5 May
2001
5 May
'01
7:20 a.m.
From: Heinz Wolter <h.wolter(a)sympatico.ca>
AMD did have an Ap note on the 2901's that
described
a then fast (I think about 4mhz) version of the 8080.
At 4mhz that was 2x standard 8080 speed. Hitting 8mhz
with (the 1981 parts) with 2901s as Z80 was hard and that
was only 2x. Within a year (1982) there would be 6mhz
z80s and by 1984ish 8mhz z80s.
IDT later made much faster versions of the 2901 and
2910-
in CMOS and they were I recall about twice as fast. 2901's
Foo, the 2910 was only soso. Would have liked a faster 2902
or 2911.
a nice Virtex or Spartan fpga will fit a whole
processor
with up to 1mbit or sram on chip.
Far more interesting, out of my range of tools to do.
Allison