3.174. __nv_fsub_rz

Prototype: 

float @__nv_fsub_rz(float %x, float %y)

Description:

Compute the difference of x and y in round-towards-zero mode.

Returns:

Returns x - y.

Note:

For accuracy information see the CUDA C++ Programming Guide, Mathematical Functions Appendix, Single-Precision Floating-Point Functions section.

This operation will never be merged into a single multiply-add instruction.

Library Availability:

Compute 2.0: Yes

Compute 3.0: Yes

Compute 3.5: Yes