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SIMD.%type%.not()

SIMD.js has been taken out of active development in TC39 and removed from Stage 3. It is not being pursued by web browsers for implementation anymore. SIMD operations exposed to the web are under active development within WebAssembly, with operations based on the SIMD.js operations.

The static SIMD.%type%.not() method returns a new instance with the bitwise logical NOT of the lane values (~a). This operation exists only on integer and boolean SIMD types.

Syntax

SIMD.Int8x16.not(a)
SIMD.Int16x8.not(a)
SIMD.Int32x4.not(a)

SIMD.Uint8x16.not(a)
SIMD.Uint16x8.not(a)
SIMD.Uint32x4.not(a)

SIMD.Bool8x16.not(a)
SIMD.Bool16x8.not(a)
SIMD.Bool32x4.not(a)
SIMD.Bool64x2.not(a) 

Parameters

a
An instance of a SIMD type.

Return value

A new corresponding SIMD data type with the bitwise logical NOT of the lane values (~a).

Description

The bitwise NOT operation yields the inverted value (one's complement). The truth table for the NOT operation is:

a ~a
0 1
1 0

For example, a bitwise NOT of ~5 results in 1010 which is 10 in decimal.

5   0101
    ----
10  1010

Examples

Bitwise NOT of an Int32x4

var a = SIMD.Int32x4(1, 2, 4, 8);
SIMD.Int32x4.not(a);
// Int32x4[-2, -3, -5, -9]

Specifications

Specification Status Comment
SIMD
The definition of 'SIMDConstructor.not' in that specification.
Obsolete Initial definition.

Browser compatibility

Experimental SIMD.js has been removed from browsers. It's still available in Firefox Nightly, but will be removed in favor of a SIMD implementation in WebAssembly. See also bug 1416723.

See also

Document Tags and Contributors

Contributors to this page: fscholz, SphinxKnight
Last updated by: fscholz,