Chapter 12: Programming
229
7312ENG.DOC CH 12 Programming, English Julie Hewlett Revised: 07/29/98 12:17 PM Printed: 05/19/99 9:02
AM Page 229 of 32
If If 8
1 1
Use
If
to execute one command depending upon condition. If
condition is true (non-zero), then command1 is executed. If
condition is false (zero), then command1 is skipped.
If
instructions can be nested.
:If
condition
:
command1 (if true)
:
command2
Write a program named
COUNT
that adds one to variable A and
displays the current value until A2.
PROGRAM:COUNT
:0"A
:Lbl Z
:A+1
"
A
:Disp "A IS",A
:Pause
:If A 2
:Stop
:Goto Z
If-Then If-Then 8
1 and 2 1 and 2
Use
If
with
Then
to execute more than one command (block)
depending upon condition. If condition is true (non-zero),
then block is executed. If condition is false (zero), then block is
skipped.
End
identifies the end of the block. Both
Then
and
End
must be on a line by itself.
:If
condition
:
Then
:
block (if true)
:End
:
command
³
Press
b
.
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