(
(
~.
(
PUTB DA, Ry, M (op
code
4): A
data
byte
from storage
(indirectly addressed by
the
storage address register Ry)
is
sent, via bus
out,
to
the
device designated by DA.
The indirect address in
the
storage address register (Ry)
is
modified as follows:
Modifier
0
Plus 1
1 Plus 2
2 Plus 3
3
Plus 4
4
Minus 1
5 Minus 2
6 Minus 3
7 Minus 4
Greater
No
change
than
7
'Put
strobe'
is
active on this microinstruction
to
signal
the
device
that
this
is
a PUT microinstruction.
PUTB Data Table
Device
Address Device
Bits 4-7
Name
0
Controller
11
Nonexecutable
ROS
2
Not
assigned
3
Not
assigned
4
Keyboard and
panel switches
Bits
8-15
8
9
10
11
12
13
14
15
State
of
Bit Definition
Not
used
Halfword address (two consecutive PUTB microinstructions)
ROS halfword address
bit
0/8
ROS halfword address
bit
1/9
ROS halfword address
bit
2/A
ROS halfword address
bit
3/B
ROS halfword address
bit
4/C
ROS halfword address
bit
5/0
ROS halfword address
bit
6/E
ROS halfword address
bit
7/F
Not
used
1 Device has subdevice addressing capability. See
the
I/O microinstructions description
under
Microinstructions
in
this section.
Microinstructions
<::-13
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