Minimum range for any implementation as defined by standard: -1.0E38 to 1.0E38
Real assignment example
ARCHITECTURE test_real OF test IS
BEGIN
PROCESS (X)
VARIABLE a: REAL;
BEGIN
a := 1.3; -- OK
a := -7.5; -- OK
a := 1; -- bad
a := 1.7E13; -- OK
A := 5.3 ns; -- bad
END PROCESS;
END TEST;
