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The EQV statement returns a value based on the equivalence of two conditions or values.
Syntax:
- first_value EQV second_value
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- Returns True only when both values are the same.
- Turns a bit on if both bits are the same, turns a bit off if both bits are different.
The results of the bitwise logical operations, where A and B are operands, and T and F indicate that a bit is set or not set:
Operands | Operations
|
A | B | NOT B | A AND B | A OR B | A XOR B | A EQV B | A IMP B
|
T | T | F | T | T | F | T | T
|
T | F | T | F | T | T | F | F
|
F | T | F | F | T | T | F | T
|
F | F | T | F | F | F | T | T
|
Note that the Relational Operations return negative one (-1, all bits set) and zero (0, no bits set) for true and false, respectively.
This allows relational tests to be inverted and combined using the bitwise logical operations.
See also:
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