Varian Data 620/i System Reference Manual page 145

Octal
OP Code M Field
Us
U
7
00 1
SS3 SS2
ON ON
Table G-5
Jump Instruction Group
Table G-5(a)
Instruction Format
A Field
U
6
U
5
U
4
U
3
SSl X=O B=O A=O
ON
U
2
A<O
Note: Jump condition is logical AND of all a field bits.
A Field
Octal
Mnemonic
000 JMP
001
J9>F
002
JAP
004
JAN
010
JAZ
020
JBZ
040
JXZ
100
JSSl
200
JSS2
400 JSS3
Table G-5(b)
Jump Instruction Codes
Jump
Instruction
Jump Unconditionally
Jump If Overflow Set
Jump If A Register Positive
Jump If A Register Negative
Jump If A Register Zero
Jump If B Register Zero
Jump If X Register Zero
Jump If Sense Switch 1 Set
Jump If Sense Switch 2 Set
Jump If Sense Switch 3 Set
G-6
U
1
U
o
A
~
a
OF=l
Timing
(Cycles)
2
2
2
2
2
2
2
2
2
2