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Bitwise OperatorsmikroC - C Compiler for Microchip PIC microcontrollers
Use the bitwise operators to modify the individual bits of numerical operands.
Bitwise operators associate from left to right. The only exception is the bitwise complement operator ~ which associates from right to left.
Bitwise Operators Overview
Operator | Operation | Precedence | |
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& | bitwise AND; returns 1 if both bits are 1, oth- | 9 | |
erwise returns 0 | |||
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bitwise (inclusive) OR; returns 1 if either or | 9 | ||
both bits are 1, otherwise returns 0 | |||
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^ | bitwise exclusive OR (XOR); returns 1 if the | 10 | |
bits are complementary, otherwise 0 | |||
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~ | bitwise complement (unary); inverts each bit | 10 | |
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>> | bitwise shift left; moves the bits to the left, | 10 | |
see below | |||
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<< | bitwise shift right; moves the bits to the right, | 10 | |
see below | |||
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Note: Operator & can also be the pointer reference operator. Refer to Pointers for more information.
Bitwise operators &, , and ^ perform logical operations on appropriate pairs of bits of their operands. For example:
0x1234 | & 0x5678; |
| /* equals 0x1230 */ | ||
/* because .. |
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0x1234 : | 0001 | 0010 | 0011 | 0100 | |
0x5678 : | 0101 | 0110 | 0111 | 1000 | |
&: 0001 0010 0011 0000
.. that is, 0x1230 */
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MikroElektronika: Development tools - Books - Compilers | 105 | ||
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