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.
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)
A new corresponding SIMD data type with the bitwise logical NOT of the lane values (~a
).
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
Int32x4
var a = SIMD.Int32x4(1, 2, 4, 8); SIMD.Int32x4.not(a); // Int32x4[-2, -3, -5, -9]
Specification | Status | Comment |
---|---|---|
SIMD The definition of 'SIMDConstructor.not' in that specification. | Obsolete | Initial definition. |
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | No support | Nightly build | No support | No support | No support |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | No support | No support | Nightly build | No support | No support | No support |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SIMD/not