SIMD.Bool64x2

The SIMD.Bool64x2 data type is a 128-bit vector divided into 2 lanes storing boolean values.

Syntax

SIMD.Bool64x2(x, y);

Parameters

x Optional

A boolean specifying the value of the first lane. Defaults to false.

y Optional

An boolean specifying the value of the second lane. Defaults to false.

Constructor functions

In addition to the simple creator functions, the SIMD API provides the following constructor functions:

SIMD.Bool64x2.splat()

Creates a Bool64x2 with all lanes set to a given value.

var v = new SIMD.Bool64x2(true, false); 
// TypeError: SIMD.Bool64x2 is not a constructor
var w = new SIMD.Bool64x2.splat(true); 
// TypeError: SIMD.Bool64x2.splat is not a constructor

var v = SIMD.Bool64x2(true, false); 
var w = SIMD.Boolt64x2.splat(true); 

Operations

To actually do something with SIMD types, SIMD operations are needed that work on SIMD data types.

Checking SIMD types

SIMD.Bool64x2.check()

Returns a new Bool64x2 if the parameter is a valid Bool64x2 data type. Throws a TypeError otherwise.

Accessing and mutating lanes

SIMD.Bool64x2.extractLane()

Returns the value of the given lane.

SIMD.Bool64x2.replaceLane()

Returns a new Bool64x2 with the given lane value replaced.

Boolean operations

SIMD.Bool64x2.allTrue()

Checks if all lanes hold a true value.

SIMD.Bool64x2.anyTrue()

Checks if any of the lanes hold a true value.

Bitwise logical operations

SIMD.Bool64x2.and()

Returns a new Bool64x2 with the logical AND of the lane values (a & b).

SIMD.Bool64x2.or()

Returns a new Bool64x2 with the logical OR of the lane values (a | b).

SIMD.Bool64x2.xor()

Returns a new Bool64x2 with the logical XOR of the lane values (a ^ b).

SIMD.Bool64x2.not()

Returns a new Bool64x2 with the logical NOT of the lane values (~a).

SIMD prototype

The following methods and properties are installed on the SIMD.Bool64x2.prototype.

SIMD.Bool64x2.prototype.constructor

Specifies the function that creates a SIMD object's prototype.

SIMD.Bool64x2.prototype.toLocaleString()

Returns a localized string representing the SIMD type and its elements. Overrides the Object.prototype.toLocaleString() method.

SIMD.Bool64x2.prototype.toString()

Returns a string representing the SIMD type and its elements. Overrides the Object.prototype.toString() method.

SIMD.Bool64x2.prototype.valueOf()

Returns the primitive value of a SIMD object.

SIMD.Bool64x2.prototype.toSource()

Returns a string representing the source code of the object. Overrides the Object.prototype.toSource() method.

Examples

Constructing a Bool64x2

SIMD.Bool64x2(true, false); // Bool64x2[true, false]
SIMD.Bool64x2(1);           // Bool64x2[true, false]
SIMD.Bool64x2();            // Bool64x2[false, false]

Specifications

The Bool64x2 type is currently not part of the SIMD specification draft.

Browser compatibility

See also

• SIMD