The operators described in Table 2–3 are recognized in constant expressions.
Table 2–3|
Binary |
Operators |
Unary |
Operators |
|---|---|---|---|
|
+ |
Integer addition |
+ |
(No effect) |
|
– |
Integer subtraction |
– |
2's Complement |
|
* |
Integer multiplication |
~ |
1's Complement |
|
/ |
Integer division |
%lo(address) |
Extract least significant 10 bits as computed by: (address & 0x3ff) |
|
% |
Modulo |
%hi(address) |
Extract most significant 22 bits as computed by: (address >>10) |
|
^ |
Exclusive OR |
%r_disp32 %r_disp64 |
Used in Sun compiler-generated code only to instruct the assembler to generate specific relocation information for the given expression. |
|
<< |
Left shift |
%r_plt32 %r_plt64 |
Used in Sun compiler-generated code only to instruct the assembler to generate specific relocation information for the given expression. |
|
>> |
Right shift | ||
|
& |
Bitwise AND | ||
|
| |
Bitwise OR |
Since these operators have the same precedence as in the C language, put expressions in parentheses to avoid ambiguity.
To avoid confusion with register names or with the %hi, %lo, %r_disp32/64, or %r_plt32/64 operators, the modulo operator % must not be immediately followed by a letter or digit. The modulo operator is typically followed by a space or left parenthesis character.