IBM System/360 Field Engineering Manual

~
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:"

IBM System/360 Specifications

General

Brand	IBM
Model	System/360
Category	Desktop
Language	English