7 Jun
2002
7 Jun
'02
10:31 a.m.
"J.C. Wren" wrote:
Why don't you learn that you don't always know what you're talking
about?
Indeed, the first step level of the 6800 had an undocumented opcode that
results in 3 particular transistors turning on that connected Vcc to GND.
The damage caused by these three transistors shorting damaged the silicon in
the immediate area, rendering the CPU useless.
But since the shop I worked for only flamed out 2 Sphere-II 6800 CPUs
before the Motorola FAE defined the problem and gave us new parts, it
probably didn't really happen, since you said it's fiction.
Since this was a early and rare version of the 6800 and most of my
information
is second hand stuff (general computer books vs data sheets )
information
like this is useful trivia. Even modern chips can have hard to find
bugs,
like the pentium division bug.
--
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html