RCA 301 Programmer's Reference Manual page 206

Op.
Instruction
Code
Number (0-14) of times
Repeat
R
to repeat next instruction
in sequence
Indicates the input/output
Input/Output Sense
s
device to be sensed
Input/Output Sense Selects the Unit
s
(DXC only) H
I — (second unit)
Selects the device
s Automatic
Rollback Control
Sense Read Error M
s
(Function 1)
M = first Control (318)
(Function 2)
Number
Logical "AND"
T
acters in each operand
Exclusive "OR"
u
Store Register
V
C-7
N
A = 0000 — do not
A = 0001 — staticize
A,, Aa, Aa
A = specifies tests to be
0
Ao =
— (first unit)
Ai, A
Aa = 1
A« = Must be zero (0)
Ai = 4, allow hardware
Ai = 8, don't allow
Aa, Aa
Ao, Ai, Aa
A3 = 1 Set Read Error
A = 2 Set Read Error
3
A., Aa, Aa
S = second Control
= 4 sense for read
Ao
(319)
HSM address of LSD in
of char­
(0-44)
first operand (and result)
HSM address of LSD in
Number (0-44) of char­
first operand (and result)
acters in each operand
HSM address of right­
Specifies Register to be
most diad to receive
stored:
contents of register,
N = 0 — None
excluding A Register,
N = 1 — P Register
specified by N. If A is
N = 2 — A Register
stored, contents of A
N = 4 — B Register
Register of previous
N = 8 — S Register
instruction are stored in
N = & — U Register
STA. The contents of A
of this instruction are
ignored
APPENDIX C. SUMMARY
A Address
= 0000 — do not staticize when re­
B
peating instruction
staticize when
= 0001 — staticize when repeating in­
repeating instruc­ B
struction
tion
when repeating
instruction
HSM address of the next instruction to
= Must be
be executed if the condition(s) being
zero's (000)
tested are present
performed
HSM address of the next instruction to
has the other
1,
be executed if the condition being tested
computer staticized
is present
an = 1)
IOS (A«
= Must be
2
zeros (00)
B = Must be zeros (0000)
rollback
hardware rollback
= Must be
zeros (00)
Must be zeros (0000)
= Must be
zeros (000)
Sense Enhancement
OFF
Sense Enhancement
ON
HSM address of the next instruction to
= Must be
be executed if the condition being tested
zeros (000)
is present
parity error
HSM address of LSD in second operand
HSM address of LSD in second operand
HSM address of next instruction if P
Register is stored. Otherwise,
is zero
B Address
address
B
9
A
•