Known bugs:

Printer/Punch   Currently will not pass section 2 of 9B01 due to channel
		pointed at different results. (Channel timing problem).
		Does not handle IORT with count longer then one card image.
	        Results in droping of next card.

Reader		Does not return correct timing for 9C01/2 for word or row
		timing.

DFDP		Sometimes off by +/-1 or 2 in least signifigant part of result.

MTx		Does not always complete last command on halt. 

HTx		Not sure what problems are, does not quite work.

DKx		Sometimes fails diagnostics with missing inhibit of interupt.
		Does not properly detect lenght of track so format can 
		overrun physical track size.

DR0		Timing not right, too slow. Does not disconnect as fast as it
		should. (Maybe need to have scheduled off of CPU rather then
		as sim_activate).

Signifigence mode Not tested

9Comb		Compatiblity mode diags do not run, find out what is wrong.
9sya		System level diags had problems, retest.
9Iota		Problems with channel positioning and trap results returned.
		Sometimes does not hold EOF flag until checked.

IOMC diag codes:
first keys 403030 and 001717 does channel E
first keys 203030  test channel A
016000200000  for disk test chan D
