CS
==
1111
(K~GA)
This specifies that the CK field values are decoded with gated K to
GA
to
determine specific select channel functions.
K
=
0001-Sets the service-out line on.
K - 0010-Sets the command-out line on.
K - OlOO-Sets the address-out line on.
K - 1000-Sets the buss-out control line on.
NOTE
The CK values will frequently appear as a combination of
these.
Example: K
~
GA
K = 1100 which sets the address-out line, the-
control line, and the selection sequence
latch on. This
turns on the select-out line.
Examples of Microword Format
/'
SYMBOLS ALLOWED
"
./
EXAMPLES
-7'
.........
./
.......
EMIT
K=
- - - - - (P -) BIN, DEC
K
=
0111 PO BIN
ARITHMETIC
CA, ALT. CA, CC, CD, CF., CG, SHJ, RXL.
DH~SC
CV
STORAGE CM, CU, USE GR
IJ~MN
MS
STORE WRAP, RESTORE WRAP,
MISCELLANEOUS
o
~
LINE, 1
~
LINE, 1
~
OE,
CONTROLS
O~MC, O~IPL, O~F, ANSNZ~S2
CS, ALT. CS
ROS WRAP, ASCII, INTST, UV
~
WX,
ADDRESSING
CAnn,~W, K~W, FWX~WX
UV~WX
BRANCHING CH
I
CL RO S3
16
IBM Confidential

1 CH AND Cl
B~ANCHiNG
A.
CH and CL
=
0000 or 000 I
00
-
0 0
Signifies forced branching. If CH and CL are zeros, it forct,"'; a branch to the next micro-
word identified by 00. If CH and CL are 01, it forces a branch to the next microword iden-
tified by 01.
B. CH = 0011 through 0110 and CL = 0011 through 0111 and 1111
00
-
STI SV·I
01
4'--
10
....-
1 1
'---
This signifies conditional branching. If the Status In Line (STI) is up and the Service In
Line (SVI) is down, this condition forces a branch to the microword identified by 10.
IBM Confidential
17