SIMD.%type%.addSaturate()

The static SIMD.%type%.addSaturate() method returns a new instance with the lane values added (a + b) and saturating behavior on overflow.

Note: This operation is not defined on Uint32x4 and Int32x4, because it is not accelerated by current hardware on those types.

Syntax

SIMD.Int8x16.addSaturate(a, b)
SIMD.Int16x8.addSaturate(a, b)

SIMD.Uint8x16.addSaturate(a, b) 
SIMD.Uint16x8.addSaturate(a, b)

Parameters

a

An instance of a SIMD type.

b

Another instance of a SIMD type.

Return value

A new corresponding SIMD data type with the lane values of a and b added (a + b).

Examples

The following example demonstrates the saturating behavior for Uint16 (maximum value 65535) and Int16 (maximum value 32767). If the addition overflows, the lanes will have the maximum possible value.

var a = SIMD.Uint16x8(65533, 65534, 65535, 65535, 1, 1, 1, 1); 
var b = SIMD.Uint16x8(1, 1, 1, 5000, 1, 1, 1, 1); 
SIMD.Uint16x8.addSaturate(a, b); 
// Uint16x8[65534, 65535, 65535, 65535, 2, 2, 2, 2]

var c = SIMD.Int16x8(32765, 32766, 32767, 32767, 1, 1, 1, 1);
var d = SIMD.Int16x8(1, 1, 1, 5000, 1, 1, 1, 1);
SIMD.Int16x8.addSaturate(c, d);
// Int16x8[32766, 32767, 32767, 32767, 2, 2, 2, 2]

Specifications

Browser compatibility

See also

• SIMD