CUDA and EXR format Does CUDA support hlaf-length-floating-p

Does/will CUDA support EXR half-floating format? According to, the G80 generation of cards natively support EXR format, but I see no sign of it in the CUDA documentation.

You can store float16 textures using the driver API. Registers in the device are 32-bit and all float16 reads are converted to float32s when read into a register.