3.171. __nv_fsub_rd
Prototype:
float @__nv_fsub_rd(float %x, float %y)
Description:
Compute the difference of x and y in round-down (to negative infinity) 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