SIMD.fromUint32x4Bits
SIMD.fromUint32x4Bits
SIMD.js已经从TC39中取消了积极的开发，并从第三阶段中删除了。它不再被网页浏览器所追求。暴露在 web 上的SIMD 操作在 WebAssembly 中正处于积极的发展之中, 其操作基于 SIMD. js 操作。
静态SIMD.%type%.fromUint32x4Bits()方法使用Uint32x4的逐位副本创建新的SIMD数据类型。
语法
SIMD.Float64x2.fromUint32x4Bits(t)
SIMD.Float32x4.fromUint32x4Bits(t)
SIMD.Int32x4.fromUint32x4Bits(t)
SIMD.Int16x8.fromUint32x4Bits(t)
SIMD.Int8x16.fromUint32x4Bits(t)
SIMD.Uint16x8.fromUint32x4Bits(t)
SIMD.Uint8x16.fromUint32x4Bits(t)
参数
t从（按位）转换的Uint32x4 SIMD类型。
返回值
一个新的SIMD数据类型，具有Uint32x4的逐位拷贝。
例子
SIMD.Float64x2.fromUint32x4Bits
var t = SIMD.Uint32x4(0, 1072693248, 0, 1073741824
SIMD.Float64x2.fromUint32x4Bits(t
// Float64x2[1, 2]
SIMD.Float32x4.fromUint32x4Bits
var t = SIMD.Uint32x4(1065353216, 1073741824, 1077936128, 1082130432
SIMD.Float32x4.fromUint32x4Bits(t
// Float32x4[1,2,3,4]
SIMD.Int16x8.fromUint32x4Bits
var t = SIMD.Uint32x4(1, 2, 3, 4
SIMD.Int16x8.fromUint32x4Bits(t
// Int16x8[1, 0, 2, 0, 3, 0, 4, 0]
SIMD.Int8x16.fromUint32x4Bits
var t = SIMD.Uint32x4(1, 2, 3, 4
SIMD.Int8x16.fromUint32x4Bits(t
// Int8x16[1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0, 4, 0, 0, 0]
规范
| Specification | Status | Comment |
|---|---|---|
| SIMDThe definition of 'SIMDConstructor.fromTIMDBits' in that specification. | Draft | Initial definition. |
浏览器兼容性
| 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 |
