add (sm4 - asm)

Component-wise add of 2 vectors.

add[_sat] dest[.mask], [-]src0[_abs][.swizzle], [-]src1[_abs][.swizzle]

Item	Description
dest	[in] The address of the result of the operation.
src0	[in] The vector to add to src1.
src1	[in] The vector to add to src0.

Remarks

The following table shows the results obtained when executing the instruction with various classes of numbers, assuming that neither overflow or underflow occurs. F means finite real number.

src0 src1->	-inf	-F	-denorm	-0	+0	denorm	+F	+inf	NaN
-inf	-inf	-inf	-inf	-inf	-inf	-inf	-inf	NaN	NaN
-F	-inf	-F	src0	src0	src0	src0	+-F or +-0	+inf	NaN
-denorm	-inf	src1	-0	-0	+0	+0	src1	+inf	NaN
-0	-inf	src1	-0	-0	+0	+0	src1	+inf	NaN
+0	i-inf	src1	+0	+0	+0	+0	src1	+inf	NaN
+denorm	-inf	src1	+0	+0	+0	+0	src1	+inf	NaN
+F	-inf	+-F or +-0	src0	src0	src0	src0	+F	+inf	NaN
+inf	NaN	+inf	+inf	+inf	+inf	+inf	+inf	+inf	NaN
NaN	NaN	NaN	NaN	NaN	NaN	NaN	NaN	NaN	NaN

This instruction applies to the following shader stages:

Vertex Shader	Geometry Shader	Pixel Shader
x	x	x

Minimum Shader Model

This function is supported in the following shader models.

Shader Model	Supported
Shader Model 5	yes
Shader Model 4.1	yes
Shader Model 4	yes
Shader Model 3 (DirectX HLSL)	no
Shader Model 2 (DirectX HLSL)	no
Shader Model 1 (DirectX HLSL)	no

Related topics

Shader Model 4 Assembly (DirectX HLSL)