49
2
3
4
5
6
7
8
2.4
B
asic instructio
ns
2.4.5
P
rogram b
ranch in
str
uctions
2.4.5
Program branch instructions
2.4.6
Program execution control instructions
2.4.7
I/O refresh instructions
Category
In
struction
Symb
ol
Symbol
Processing Details
Execution
Condition
Nu
mb
er of
Basic S
tep
s
Su
bset
See fo
r D
escript
ion
Jump
CJ
• Jumps to Pn when input conditions are
met.
2
SCJ
• Jumps to Pn from the scan after the
meeting of input condition.
2
JMP
• Jumps unconditionally to Pn.
2
GOEND
• Jumps to END instruction when input
condition is met.
1
-
Category
In
stru
ction
Symb
ol
Symbol
Processing Details
Execution
Condition
N
u
mb
er of
Basic S
tep
s
Subse
t
See fo
r Descript
ion
Disable
interrupts
DI
• Prohibits the running of an interrupt program.
1
-
Enable
interrupts
EI
• Resets interrupt program execution
prohibition.
1
-
Interrupt
disable/
enable
setting
IMASK
• Inhibits or permits interrupts for each interrupt
program.
2
-
Return
IRET
• Returns to sequence program from an
interrupt program.
1
-
Category
In
struct
ion
Symb
ol
Symbol
Processing Details
Execution
Condition
Nu
mb
er of
Basic S
tep
s
Su
bset
See fo
r D
escript
ion
I/O Refresh
RFS
• Refreshes the relevant I/O area during scan.
3
-
RFSP
CJ
Pn
SCJ
Pn
JMP
Pn
GOEND
DI
EI
IMASK
S
IRET
RFS
n
S
RFSP
n
S