[Simh] {Simh] A few more bugs found

[Bob Supnik]

I'm only going to comment on my own code.

2. id_pas.c - this is real. The tests should be against TTUF_MODE_8B. 
Will be fixed in 3.9.

4. pdp1_cpu.c, Ea_ch. Also real, the & should be && in that statement. 
Will be fixed in 3.9.

6. pdp1_stddev.c, tto_svc. Also real. The code will be restructured so 
that c is only referenced inside the else {} statement. Will be fixed in 3.9

9. i1401_iq.c. Also real. The return should be commented out as well. 
Already fixed in the 3.9 code base.

/Bob