Mikroelektronika MIKROE-742 데이터 시트

Use the while keyword to conditionally iterate a statement. The syntax of the while
statement is:

while expression do statement

statement

is executed repeatedly as long as 

expression

evaluates true. The test

takes place before the 

statement

is executed. Thus, if 

expression

evaluates false

on the first pass, the loop does not execute.

Here is an example of calculating scalar product of two vectors, using the while
statement:

s := 0; i := 0;
while i < n do
begin

s := s + a[i] * b[i];
i := i + 1;

Probably the easiest way to create an endless loop is to use the statement:

while TRUE do ...;

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- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 5