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~
Operation
Mnemonic
Op Code
Format
Operands
Descr"iPtion
Interruptions
Cond Cod_§_
Test I/O
TIO
9D
SI
Dl(Bl)
Opr 1 (21-31) identifies the tested channel,
Privileged
0 Available
-"' :
control unit, and I/O device.
Used to clear
Oper
1
csw
"'
an interrupt pending in the control unit.
stored
""
(CSW stored at loo
64)o
2 Channel
0
Control unit contains a pending interrupt.
or Ctl
I/O device contains a pending interrupt.
Unit Busy
Control unit or I/O device is executing a
Not
previous operation or a pending channel-
Operational
end/control unit-end for another I/O
device.
Channel or I/O device equipment error.
Test Under Mask
TM
91
SI
Dl(Bl), 12
Immediate bits (8-15) used as a mask to
Selected
compare against opr
I.
bits all
Mask 1 bit:
storage
bit
tested.
zero (mask
Mask 0 bit: storage bit ignored.
is all zero)
1 Selected
bits mixed
O's and l's
3 Selected
bits all 1 's
Translate
TR
DC
SS
Dl(L, )31), D2(B2)
Opr 1 (argument byte) added to the initial
Protection
Unchanged
5J
adr of opr 2 (24-31).
This adr now is the
Addressing
.::
lac of the function byte which replaces the
()
original argument byte (left to right byte
0
z
by byte)
~
(All data is valid)
t>:l
(Oper is terminated when opr 1 field is
z
::l
exhausted)
;..
I:"
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