Binary and hexadecimal constants
require the use of the leading radix indicator character:
- Binary-Percent sign (%) followed by a string of binary digits (0,1). Example: %0101
- Hexadecimal-Dollar sign ($) followed by a string of hexadecimal digits (0-9, A-F, a-f). Example: $7FFF
- Decimal-A string of digits (0-9), optionally preceded by a grave accent (`). Example: `12345
A constant may be expressed without the leading radix indicator if a
RADIX
directive is used before the constant evaluation.