Class X86.Fma

FMA intrinsics

Inheritance

Object

X86.Fma

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: Unity.Burst.Intrinsics

Syntax

public static class Fma

Properties

IsFmaSupported

Evaluates to true at compile time if FMA intrinsics are supported.

Burst ties FMA support to AVX2 support to simplify feature sets to support.

Declaration

public static bool IsFmaSupported { get; }

Property Value

Type	Description
Boolean

Methods

fmadd_pd(v128, v128, v128)

Multiply packed double-precision (64-bit) floating-point elements in a and b, add the intermediate result to packed elements in c, and store the results in dst.

Declaration

public static v128 fmadd_pd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmadd213pd xmm, xmm, xmm

fmadd_ps(v128, v128, v128)

Multiply packed single-precision (32-bit) floating-point elements in a and b, add the intermediate result to packed elements in c, and store the results in dst.

Declaration

public static v128 fmadd_ps(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmadd213ps xmm, xmm, xmm

fmadd_sd(v128, v128, v128)

Multiply the lower double-precision (64-bit) floating-point elements in a and b, and add the intermediate result to the lower element in c. Store the result in the lower element of dst, and copy the upper element from a to the upper element of dst.

Declaration

public static v128 fmadd_sd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmadd213sd xmm, xmm, xmm

fmadd_ss(v128, v128, v128)

Multiply the lower single-precision (32-bit) floating-point elements in a and b, and add the intermediate result to the lower element in c. Store the result in the lower element of dst, and copy the upper 3 packed elements from a to the upper elements of dst.

Declaration

public static v128 fmadd_ss(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmadd213ss xmm, xmm, xmm

fmaddsub_pd(v128, v128, v128)

Multiply packed double-precision (64-bit) floating-point elements in a and b, alternatively add and subtract packed elements in c to/from the intermediate result, and store the results in dst.

Declaration

public static v128 fmaddsub_pd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmaddsub213pd xmm, xmm, xmm

fmaddsub_ps(v128, v128, v128)

Multiply packed single-precision (32-bit) floating-point elements in a and b, alternatively add and subtract packed elements in c to/from the intermediate result, and store the results in dst.

Declaration

public static v128 fmaddsub_ps(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmaddsub213ps xmm, xmm, xmm

fmsub_pd(v128, v128, v128)

Multiply packed double-precision (64-bit) floating-point elements in a and b, subtract packed elements in c from the intermediate result, and store the results in dst.

Declaration

public static v128 fmsub_pd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmsub213pd xmm, xmm, xmm

fmsub_ps(v128, v128, v128)

Multiply packed single-precision (32-bit) floating-point elements in a and b, subtract packed elements in c from the intermediate result, and store the results in dst.

Declaration

public static v128 fmsub_ps(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmsub213ps xmm, xmm, xmm

fmsub_sd(v128, v128, v128)

Multiply the lower double-precision(64-bit) floating-point elements in a and b, and subtract the lower element in c from the intermediate result.Store the result in the lower element of dst, and copy the upper element from a to the upper element of dst.

Declaration

public static v128 fmsub_sd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmsub213sd xmm, xmm, xmm

fmsub_ss(v128, v128, v128)

Multiply the lower single-precision (32-bit) floating-point elements in a and b, and subtract the lower element in c from the intermediate result. Store the result in the lower element of dst, and copy the upper 3 packed elements from a to the upper elements of dst.

Declaration

public static v128 fmsub_ss(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmsub213ss xmm, xmm, xmm

fmsubadd_pd(v128, v128, v128)

Multiply packed double-precision (64-bit) floating-point elements in a and b, alternatively subtract and add packed elements in c to/from the intermediate result, and store the results in dst.

Declaration

public static v128 fmsubadd_pd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmsubadd213pd xmm, xmm, xmm

fmsubadd_ps(v128, v128, v128)

Multiply packed single-precision (32-bit) floating-point elements in a and b, alternatively subtract and add packed elements in c to/from the intermediate result, and store the results in dst.

Declaration

public static v128 fmsubadd_ps(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfmsubadd213ps xmm, xmm, xmm

fnmadd_pd(v128, v128, v128)

Multiply packed double-precision (64-bit) floating-point elements in a and b, add the negated intermediate result to packed elements in c, and store the results in dst.

Declaration

public static v128 fnmadd_pd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfnmadd213pd xmm, xmm, xmm

fnmadd_ps(v128, v128, v128)

Multiply packed single-precision (32-bit) floating-point elements in a and b, add the negated intermediate result to packed elements in c, and store the results in dst.

Declaration

public static v128 fnmadd_ps(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfnmadd213ps xmm, xmm, xmm

fnmadd_sd(v128, v128, v128)

Multiply the lower double-precision (64-bit) floating-point elements in a and b, and add the negated intermediate result to the lower element in c. Store the result in the lower element of dst, and copy the upper element from a to the upper element of dst.

Declaration

public static v128 fnmadd_sd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfnmadd213sd xmm, xmm, xmm

fnmadd_ss(v128, v128, v128)

Multiply the lower single-precision (32-bit) floating-point elements in a and b, and add the negated intermediate result to the lower element in c. Store the result in the lower element of dst, and copy the upper 3 packed elements from a to the upper elements of dst.

Declaration

public static v128 fnmadd_ss(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfnmadd213ss xmm, xmm, xmm

fnmsub_pd(v128, v128, v128)

Multiply packed double-precision (64-bit) floating-point elements in a and b, subtract packed elements in c from the negated intermediate result, and store the results in dst.

Declaration

public static v128 fnmsub_pd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfnmsub213pd xmm, xmm, xmm

fnmsub_ps(v128, v128, v128)

Multiply packed single-precision (32-bit) floating-point elements in a and b, subtract packed elements in c from the negated intermediate result, and store the results in dst.

Declaration

public static v128 fnmsub_ps(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfnmsub213ps xmm, xmm, xmm

fnmsub_sd(v128, v128, v128)

Multiply the lower double-precision(64-bit) floating-point elements in a and b, and subtract the lower element in c from the negated intermediate result.Store the result in the lower element of dst, and copy the upper element from a to the upper element of dst.

Declaration

public static v128 fnmsub_sd(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfnmsub213sd xmm, xmm, xmm

fnmsub_ss(v128, v128, v128)

Multiply the lower single-precision (32-bit) floating-point elements in a and b, and subtract the lower element in c from the negated intermediate result. Store the result in the lower element of dst, and copy the upper 3 packed elements from a to the upper elements of dst.

Declaration

public static v128 fnmsub_ss(v128 a, v128 b, v128 c)

Parameters

Type	Name	Description
v128	a
v128	b
v128	c

Returns

Type	Description
v128

Remarks

**** vfnmsub213ss xmm, xmm, xmm

mm256_fmadd_pd(v256, v256, v256)

Multiply packed double-precision (64-bit) floating-point elements in a and b, add the intermediate result to packed elements in c, and store the results in dst.

Declaration

public static v256 mm256_fmadd_pd(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfmadd213pd ymm, ymm, ymm

mm256_fmadd_ps(v256, v256, v256)

Multiply packed single-precision (32-bit) floating-point elements in a and b, add the intermediate result to packed elements in c, and store the results in dst.

Declaration

public static v256 mm256_fmadd_ps(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfmadd213ps ymm, ymm, ymm

mm256_fmaddsub_pd(v256, v256, v256)

Multiply packed double-precision (64-bit) floating-point elements in a and b, alternatively add and subtract packed elements in c to/from the intermediate result, and store the results in dst.

Declaration

public static v256 mm256_fmaddsub_pd(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfmaddsub213pd ymm, ymm, ymm

mm256_fmaddsub_ps(v256, v256, v256)

Multiply packed single-precision (32-bit) floating-point elements in a and b, alternatively add and subtract packed elements in c to/from the intermediate result, and store the results in dst.

Declaration

public static v256 mm256_fmaddsub_ps(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfmaddsub213ps ymm, ymm, ymm

mm256_fmsub_pd(v256, v256, v256)

Multiply packed double-precision (64-bit) floating-point elements in a and b, subtract packed elements in c from the intermediate result, and store the results in dst.

Declaration

public static v256 mm256_fmsub_pd(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfmsub213pd ymm, ymm, ymm

mm256_fmsub_ps(v256, v256, v256)

Multiply packed single-precision (32-bit) floating-point elements in a and b, subtract packed elements in c from the intermediate result, and store the results in dst.

Declaration

public static v256 mm256_fmsub_ps(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfmsub213ps ymm, ymm, ymm

mm256_fmsubadd_pd(v256, v256, v256)

Multiply packed double-precision (64-bit) floating-point elements in a and b, alternatively subtract and add packed elements in c to/from the intermediate result, and store the results in dst.

Declaration

public static v256 mm256_fmsubadd_pd(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfmsubadd213pd ymm, ymm, ymm

mm256_fmsubadd_ps(v256, v256, v256)

Multiply packed single-precision (32-bit) floating-point elements in a and b, alternatively subtract and add packed elements in c to/from the intermediate result, and store the results in dst.

Declaration

public static v256 mm256_fmsubadd_ps(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfmsubadd213ps ymm, ymm, ymm

mm256_fnmadd_pd(v256, v256, v256)

Multiply packed double-precision (64-bit) floating-point elements in a and b, add the negated intermediate result to packed elements in c, and store the results in dst.

Declaration

public static v256 mm256_fnmadd_pd(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfnmadd213pd ymm, ymm, ymm

mm256_fnmadd_ps(v256, v256, v256)

Multiply packed single-precision (32-bit) floating-point elements in a and b, add the negated intermediate result to packed elements in c, and store the results in dst.

Declaration

public static v256 mm256_fnmadd_ps(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfnmadd213ps ymm, ymm, ymm

mm256_fnmsub_pd(v256, v256, v256)

Multiply packed double-precision (64-bit) floating-point elements in a and b, subtract packed elements in c from the negated intermediate result, and store the results in dst.

Declaration

public static v256 mm256_fnmsub_pd(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfnmsub213pd ymm, ymm, ymm

mm256_fnmsub_ps(v256, v256, v256)

Multiply packed single-precision (32-bit) floating-point elements in a and b, subtract packed elements in c from the negated intermediate result, and store the results in dst.

Declaration

public static v256 mm256_fnmsub_ps(v256 a, v256 b, v256 c)

Parameters

Type	Name	Description
v256	a
v256	b
v256	c

Returns

Type	Description
v256

Remarks

**** vfnmsub213ps ymm, ymm, ymm