gEDA: icarus verilog file i/o system functions

[James Bird <hwh-james-at-NOSPAMoptusnet_dot_com_dot_au>]

Hi all,

Could someone point me to an up to date listing of what functions 
(particularly for file i/o) are / are not implemented in the icarus 
verilog system.vpi file. I also would like reference info on these 
functions where they differ from the regular implementations.

Thanks,

James.