27 Sep
2004
27 Sep
'04
4:27 p.m.
At 12:23 PM -0700 9/27/04, Tom Jennings wrote:
I haven't had a chance to get back and debug, but
is it true that simh
does NOT simulate the target machine's execution speed?
That is true. No attempt is made at mimicking the original CPU speed.
However this does cause problems for some I/O devices. In some
cases, extra code has gone into working through situations in which
an OS makes implicit assumptions about how quickly an I/O operation
will complete. Sometimes SIMH executes these too quickly and much
fun ensues.
John