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 for this function see the CUDA C Programming Guide, Appendix D.1, Table 6.

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