30 Mar
2000
30 Mar
'00
5:53 a.m.
On Mar 30, 22:30, Olminkhof wrote:
I do this and get:
147470
@
Further iterations all result in:
173000
@
If I hit restart at any time after that there is a some disk activity and
eventually and "&" prompt appears.
The first address is in RAM, which is interesting. It suggests the
processor is executing some bootstrap that gets copied into memory. 173000
is the standard bootstrap address; every time you restart the CPU, it sets
the program counter to that address. The "&" is not any normal PDP-11
prompt, so that must have come from the disk or custom boot roms.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York