Select Case Syntax Statement - Hitachi NT2021XA Instruction Manual

Chapter 2 Syntax

select case syntax statement

- Format
Format
select <conditional variable>
case <conditional value 1>
<instruction set 1>
case <conditional value 2>
<instruction set 2>
[case else]
[<instruction set n>]
end select
- Explanation
This instruction executes
variable> matches <conditional value 1>
statement is described,
value 1> to <conditional value
- Sample program (when Xw = 2)
Label Mnemonic
U(00)=
select
case
Yw=
case
Yw=
case
Yw=
case
Yw=
case else
Yw=
end select
Y(00)=
Instruction to branch under multiple conditions
This instruction executes
described in a case statement when
<conditional value 1>
respectively.
If the case else statement is described,
when
1> to <conditional value
<instruction set 1> to <instruction set n-1>
to <conditional value n-1>
<instruction set n> is executed when
n-1>.
parameter1 parameter2
Xw
U(00)
0
U(00)
1
U(00)
2
U(00)
4
U(00)
0
1
Description
<instruction set 1>
to <conditional value n-1>
<conditional variable> does not match any of
n-1>.
described in a case statement when
in the case statement, respectively. If the case else
<conditional variable>
parameter3 parameter4 parameter5
2-14
to <instruction set n-1>
<conditional variable> matches
in the case statement,
<instruction set n> is executed
<conditional value
<conditional
does not match any of
Sequence of execution
(1)
(2)
(3)
(4)
(5)
(6)
<conditional