ps_2_0 Instructions

This section contains reference information for the pixel shader version 2_0 instructions.

There are several types of pixel shader instructions, as shown in the table. Columns to the right mean the following:

Instruction slots - Number of instruction slots used by each instruction.
Setup - A pixel shader must have a version instruction and it must be the first instruction.
Arithmetic - These instructions provide the mathematical operations in a shader.
Texture - These instructions are used to load and sample texture data, and to modify texture coordinates.
New - These instructions are new to this version.

Instruction Set

Name	Description	Instruction slots	Setup	Arithmetic	Texture	New
abs - ps	Absolute value	1		x		x
add - ps	Add two vectors	1		x
cmp - ps	Compare source to 0	1		x
crs - ps	Cross product	2		x		x
dcl_samplerType - ps	Declare the texture dimension for a sampler	0	x			x
dcl - ps	Declare the association between vertex shader output registers and pixel shader input registers.	0	x			x
def - ps	Define constants	0	x
dp2add - ps	2D dot product and add	2		x		x
dp3 - ps	3D dot product	1		x
dp4 - ps	4D dot product	1		x
exp - ps	Full precision 2^x	1		x		x
frc - ps	Fractional component	1		x		x
log - ps	Full precision log₂(x)	1		x		x
lrp - ps	Linear interpolate	2		x
m3x2 - ps	3x2 multiply	2		x		x
m3x3 - ps	3x3 multiply	3		x		x
m3x4 - ps	3x4 multiply	4		x		x
m4x3 - ps	4x3 multiply	3		x		x
m4x4 - ps	4x4 multiply	4		x		x
mad - ps	Multiply and add	1		x
max - ps	Maximum	1		x		x
min - ps	Minimum	1		x		x
mov - ps	Move	1		x
mul - ps	Multiply	1		x
nop - ps	No operation	1		x
nrm - ps	Normalize	3		x		x
pow - ps	x^y	3		x		x
ps	Version	0	x
rcp - ps	Reciprocal	1		x		x
rsq - ps	Reciprocal square root	1		x		x
sincos - ps	Sine and cosine	8		x		x
sub - ps	Subtract	1		x
texkill - ps	Kill pixel render	1			x
texld - ps_2_0 and up	Sample a texture	1			x	x
texldb - ps	Texture sampling with level-of-detail bias from w-component	1			x	x
texldp - ps	Texture sampling with projective divide by w-component	1			x	x