Issue
w-cH(Oll
Start
1/0
~
CCW2
I--
CCWl Routine
Routine
Unit
~
Select
Routine
I
CCl,AI
Status
In
. l
Write
Fetch
End
Update
Routine
Interrupt
Routine
r-
A-clock
Sequencing
IDT
14--
A-clock
Sequencing
Sequence
CPU Single
Step
FIGURE 107.
SELECTOR
CHANNEL CLOCK-STEPPING
BLOCK
DIAGRAM
Addre11
Data
Comments
0078
FF040000
I/O
new
PSW
007C 00000300
0300
9COOOCUU
SIO--CUUachamiel
and uuit
addre11
of
tcratch
tape
0304 47F00304
Unconditional branch
to
304
0400 01000501
ccw
0404 20000100
3. Set
selector
channel
display
switch
to
channel
number
of
scratch
tape.
4.
Press
PSW RESTART and
observe
that
the
scratch
tape
moves.
Any
or
all
of the five following
routines
may
now be
stepped
through. (Make
sure
the
tape
is
moving
as
each
routine
is
started.)
Start
1/0
(CCWl) Routine IOP201
ROS
Chamiel
1.
Set
ROS
addre11 010 in the
storage
data
keys.
2.
Set
ROS
addreu
compare
switch
to
STOP.
3.
Prea
SYSTEM
RESET
and
PSW
RESTART.
010 CCW1,
CCO
4.
Set
rate
switch
to
SINGLE
CYCLE.
s.
Set addre11
key
11 on, 9 and
10
off1
prea
ENTER.
6.
Prea
START.
AAB
7. Prell START.
AAA
CCW1, CCO,
AO
8.
Set
addrea
keys 10 and 11 on,
9 off;
prea
ENTER.
CCWl,
CCO,
Al
110
(3/71)
Model
SO
FEMM
CPU
Pr
acess
CPU Single Step
Action
ROS
Channel
Addreilll
Time
9.
Set addre11key10 on, 9 and
11
off;
prea
ENTER.
CCWl,
CCl,
CS
10.
Set
addrea
key
11
on, 9 and
10 off;
prea
ENTER.
CCWl,
CCl
11.
Prell START.
ABB
12.
Pre11
START.
A80
CCW1,
cc1,
AO
13.
Set addre11 keya 10 and 11 on,
9 off;
pre11
ENTER.
ccw1,
cc1,
Al
14,
Set addre11 key 10 on, 9 and
11
off; ire11 ENTER.
CCWl,
CC2, CS
15.
Set
all
adare11 keys off;
pre11
ENTER.
16. Set
rate
switch
to
PROCESS.
CCW2
Routine
IOP202
ROS
Channel
~
~
-I!!!!!-
1. Set
ROS
address 030
in
the
storage
data
keys.
2.
Set
ROS
addre11
compare
switch
to
STOP. 030
ccw2,
cco
3.
Set
rate
switch
to
SINGLE
CYCLE.
4.
Set addre11 key
11
on, 9 and
10
off;
prea
ENTER.
s.
Prea
START.
A51
6.
Prea
START.
ADO
7.
Prea
START.
ABS
ccw2,
cco,
AO
8.
Set
addrea
keys
10
L i
11
on,
9 off;
pre11
ENTER.
CCW2, CCO,
Al
9. Set addre11 key 10 on, 9 and
11 off;
irea
ENTER.
ccw2,
cc1,
cs
10.
Set addre11 key 11 on, 9 and
10 off;
pre11
ENTER.
CCW2, CC1
To Next Page
Loading...
