Prototype:

i32 @__nv_usad(i32 %x, i32 %y, i32 %z) 

Description:

Calculate $|x-y|+z$ , the 32-bit sum of the third argument z plus and the absolute value of the difference between the first argument, x, and second argument, y.

Inputs x, y, and z are unsigned 32-bit integers.

Returns:

Returns $|x-y|+z$ .

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes