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bitand~

Bitwise and-operation of floating point signals

Description

The bitand~ object performs a bitwise intersection (a bitwise "and") on two incoming floating-point signals as either raw 32-bit data or as integer values. The output is a floating-point signal composed of those bits which are 1 in both numbers.

Arguments

Name Type Opt Description
bitmask int opt Sets the bitmask to be used by the bitand~ object. The default is 0. An integer value can be used as a bitmask regardless of the mode; the binary representation of this integer is the bitmask.
operational-mode int opt Specifies whether the floating-point signal or floating-point values will be processed as raw 32-bit floating-point values or converted to integer values for the bitwise operation. The modes of operation are listed below.
Mode: Description:
0 int Treat both floating-point signal inputs as raw 32-bit values (default).
1 int Convert both floating-point signal inputs to integer values.
2 int Treat the floating-point signal in the left inlet as a raw 32-bit value and the value in the right inlet as an integer.
3 int Convert the floating-point signal in the left inlet to an integer and treat the right input as a raw 32-bit value.

Messages

int bitmask [int]
 In right inlet: An integer value can be used as a bitmask when supplied to the right inlet of the bitand~ object, provided that the proper mode is set.
float bitmask [float]
 Performs the same function as int.
bits bitmask (32 ones or zeros) [list]
 In left inlet: The word bits, followed by a list containing 32 ones or zeros, specifies a bitmask to be used by bitand~. Alternately, a bitmask value can be set by using an int value in the right inlet.
mode behavioral-flag (0 through 3) [int]
 In left inlet: The word mode, followed by a zero or one, specifies whether the floating signal or floating-point values will be processed as a raw 32-bit floating-point value or converted to an integer value for the bitwise operation. The modes of operation are:

Mode Descriptions:
0 - Treat both floating-point signal inputs as raw 32-bit values (default).
1 - Convert both floating-point signal inputs to integer values.
2 - Treat the floating-point signal in the left inlet as a raw 32-bit value and treat the value in the right inlet as an integer.
3 - Convert the floating-point signal in the left inlet to an integer and treat the right input as a raw 32-bit value.

Note: If you convert the floating-point signal input to an integer and then convert it back, the resulting floating-point value will retain only 24 bits of integer resolution.
signal In left inlet: The floating-point signal is compared, in binary form, with the floating-point signal in the right inlet. The signal can be treated as either a floating-point signal or as an integer.
In right inlet: The floating-point signal to be compared with the signal in the left inlet. The signal can be treated as either a floating-point signal or as an integer.
The raw floating-point signal bit values are expressed in the following form:
<1 sign bit> <8 exponent bits> <23 mantissa bits>

Information for box attributes common to all objects

Output

signal: The two floating-point signals or ints received in the inlets are compared, one bit at a time. If a bit is 1 in both numbers, it will be 1 in the output number, otherwise it will be 0 in the output floating-point signal.

Examples

See Also

Name Description
bitshift~ Bit shifting for floating point signals
bitor~ Bitwise or-operation of floating point signals
bitxor~ Bitwise exclusive-or-operation of floating point signals
bitnot~ Bitwise inversion of a floating point signal