The assembler performs all arithmetic with signed 32-bit precision.
The default radix for all numbers is 10. Other radices can be specified by a trailing base specifier, as given in the Table 1 table.
| Radix | Format |
|---|---|
| Binary | Digits 0 and 1 followed by
|
| Octal | Digits 0 to 7 followed by O,
Q, o or q |
| Decimal | Digits 0 to 9 followed by D,
d or nothing |
| Hexadecimal | Digits 0 to 9, A to F preceded by
0x or followed by H or
h |
Hexadecimal numbers must have a leading digit (e.g.,
0ffffh) to differentiate them from identifiers. Hexadecimal digits are
accepted in either upper or lower case.
Note that a binary constant must have an upper case B
following it, as a lower case b is used for temporary (numeric) label
backward references.
In expressions, real numbers are accepted in the usual format, and are interpreted as IEEE 32-bit format.