On 2006.3.8, at 10:54 PM, Neil Cherry wrote:
Joel Rees wrote:
On 2006.3.8, at 12:34 PM, Thomas Taylor wrote:
Home built (wire-wrapped) 1802, 6802,
What was your monitor ROM on the 6802? do you remember?
MBUG or MKBUG, I can't remember (though I could pull the boards
out and see if the sticker is still there :-) ). I think I still
have the 6808 CoCo around (that's not a type, it's a Moto dev
board).
Micro Chroma, with the 6847 and 6846 and 2K by 4 bit static RAMs and ...
Had to go looking it up on the web. Mine is in a wooden case in Utah,
under a pile of dust, and I think I've never had a chance to show it to
my son and brag a bit.
I put dynamic RAM in the kludge space, hand wired 64K (half
bank-switched by a bit on the PIA) in. Did you put anything special
there? Also hand assembled and hand-entered a fig-FORTH on it.
When I was bored, I'd toggle the reset switch carelessly, just to prove
to myself that real randomness doesn't go anywhere in particular. Also
ran a wire about a football-field in length to attempt to use the 6846
to get a really gross measure of the speed of light. Or maybe I didn't
run the wire, just calculated the distance light would travel while the
6846 timer counted one. Too bad I didn't understand the slotted wheel
experiment back then. :-)
