exp - ps

Provides full precision exponential 2^x.

Syntax

exp dst, src

where

dst is the destination register.
src is a source register. Source register requires explicit use of replicate swizzle; that is, exactly one of the .x, .y, .z, .w swizzle components (or the .r, .g, .b, .a equivalents) must be specified. See Source Register Swizzling.

Pixel shader versions	1_1	1_2	1_3	1_4	2_0	2_x	2_sw	3_0	3_sw
exp					x	x	x	x	x

The following code snippet shows the operations performed:

dest.x = dest.y = dest.z = dest.w = (float)pow(2, src.replicateSwizzleComponent);