Re: Painless micro program

In article <1179633027.463343.192350@xxxxxxxxxxxxxxxxxxxxxxxxxxx>,
kensmith@xxxxxxxxx says...
On May 19, 5:54 pm, krw <k...@xxxxxxxxxx> wrote:
In article <1179616199.332790.162...@xxxxxxxxxxxxxxxxxxxxxxxxxxx>,
kensm...@xxxxxxxxx says...
[... CDP1802 ...]
Well, the 8051, at least in its original incantation, isn't much of a
screamer either (12 clocks per op, as well).

There's a big difference between 12 cycles of a 12MHz clock and 12
cycles of a 2 MHZ clock. Besides:

Like I said, there isn't much of a difference.

A = B + C

Compiles to something like 16 instructions if A, B and C are randomly
located in the RAM area.

The 8051 is not so different if A, B, and C are randomly located in
external RAM. I'd never use a HLL on such a beast.

[....]

Not very. Almost every computer keyboard on the planet has an
"8048" in it.

I think today it is more of a 8048 like core in a special chip. I
wouldn't be surprised to see only one package inside a keyboard. With
the kind of quantity they are made in today a special purpose IC makes
a lot of sense.

Which is why I put 8048 in quotes. My bet is that the 8048 core is
still in there.

--
Keith
.

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