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# ANDV

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**ANDV** is a CAOS command for a bitwise operation.

## Usage[edit]

Syntax: *ANDV var (int variable) mask (int)*

This performs a bitwise AND on *var*. Bitwise AND matches up the bits of *var* and *mask* which both contain 1, and produces a new sequence of bits which contains 1s in these positions. In C, ANDV would be written `var = var & mask`

.

The arguments must be integers (though the second will be cast if a float). They will be treated as signed 32-bit using two's complement.

## Examples[edit]

Here is a simple AND operation:

SETV va00 24 * 24 = %11000 ANDV va00 14 * 14 = %01110 OUTV va00 8 * 8 = %01000

This implements `va00 = va00 XOR va01`

using *ANDV* and ORRV:

* va00 = A; va01 = B SETV va02 va00 NOTV va02 * va02 = ~A SETV va03 va01 NOTV va03 * va03 = ~B ANDV va00 va03 * va00 = A & ~B ANDV va02 va01 * va03 = ~A & B ORRV va00 va02 * va00 = (A & ~B) | (~A & B)

As an example, performing the above with va00 = 5 (%0101) and va01 = 3 (%0011) yields va00 = 6 (%0110).

## See also[edit]

## References[edit]

- Mathworld on XOR for the XOR algorithm above