Varian Data 620/i System Reference Manual page 146

Octal
OP Code M Field U
a
00 2
SS3
Table G-6
J ump.and-Mark Instruction Group
U
7
SS2
Table G-6(a)
Instruction Format
A Field
U
6
U
5
U
4
U
3
SSl X=O B=O A=O
U
2
A<O
Note: Jump and Mark condition is logical-AND of all a field bits.
A Field
Octal
Mnemonic
000 JMPM
001
J~FM
002 JANM
003
JAPM
010
JAZM
020 JBZM
040 JXZM
100 JS1M
200 JS2M
400 JS3M
Table G-6(b)
Jump-and-Mark Instruction Codes
Jump-and-Mark
Instructions
Jump and Mark Unconditionally
Jump and Mark if Overflow Set
Jump and Mark if A Register Negative
Jump and Mark if A Register Positive
Jump and Mark if A Register Zero
Jump and Mark if B Register Zero
Jump and Mark if X Register Zero
Jump and Mark if Sense Switch 1 On
Jump and Mark if Sense Switch 2 On
Jump and Mark if Sense Switch 3 On
G-7
U
l
U
o
A
2:
0 OF=l
Timing
(Cycles)
3
2 (3 if Jump)
2 (3 if Jump)
2 (3 if Jump)
2 (3 if Jump)
2 (3 if Jump)
2 (3 if Jump)
2 (3 if Jump)
2 (3 if Jump)
2 (3 if Jump)