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  • SIMD.fromInt32x4Bits (SIMD) - JavaScript 中文开发手册
    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%.fromInt32x4Bits()方法使用Int32x4的按位副本创建新的SIMD数据类型。
    语法
    SIMD.Float64x2.fromInt32x4Bits(t)SIMD.Float32x4.fromInt32x4Bits(t) SIMD.Int16x8.fromInt32x4Bits(t) SIMD.Int8x16.fromInt32x4Bits(t) SIMD.Uint32x4.fromInt32x4Bits(t) SIMD.Uint16x8.fromInt32x4Bits(t) SIMD.Uint8x16.fromInt32x4Bits(t)
  • 参数
    t从（按位）转换的Int32x4 SIMD类型。
    返回值
    一个新的SIMD数据类型，从Int32x4按位拷贝。
    例子
    SIMD.Float64x2.fromInt32x4Bits
    var t = SIMD.Int32x4(0, 1072693248, 0, 1073741824);SIMD.Float64x2.fromInt32x4Bits(t); // Float64x2[1, 2]
  • SIMD.Float32x4.fromInt32x4Bits
    var t = SIMD.Int32x4(1065353216, 1073741824, 1077936128, 1082130432);SIMD.Float32x4.fromInt32x4Bits(t); // Float32x4[1,2,3,4]
  • SIMD.Int16x8.fromInt32x4Bits
    var t = SIMD.Int32x4(1, 2, 3, 4);SIMD.Int16x8.fromInt32x4Bits(t); // Int16x8[1, 0, 2, 0, 3, 0, 4, 0]
  • SIMD.Int8x16.fromInt32x4Bits
    var t = SIMD.Int32x4(1, 2, 3, 4);SIMD.Int8x16.fromInt32x4Bits(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