A simple language for a simple microcontroller

varName <- value;

A variable is created with the given name if it does not already exist, otherwise its value is updated. This means that all variables are global. A variable name starts with a letter and afterwards may contain number of alphabetic characters

The value of a variable is always a 8 bits.

Currently only addition is supported

b <- 10 + a

A while loop takes the form of

while condition do
  stmt1;
  stmt2
end

where condition is a boolean expression.

An if takes the form of

if condition then
  stmt1;
  stmt2
else
  stmt1;
  stmt2
end

Note that when there are multiple statements, each statement is separated by a ;, except the last one.

Statements may also be grouped using parentheses.

condition may be one of the following

a < b
a > b
a and b
a or b

with the operators reflecting their usual meaning

var a <- 10;
var b <- 20;
var c <- a+b;

if 2 < 3 then
  c <- 0
else
  c <- c + 1
end;

while c<100 do
  c <- c + 2
end