How to define the attribute in synplify !

[dolby.yang]

synplify define

How to define the attribute that keep the synplify change the signal name when it do synthesis? syn_keep and syn_preserve seams have no this funciton ?

thanks !

 

[dolby.yang]

synplify syn_keep

who can support this issue ?

 

[rberek]

synthesis syn_keep=1

Try putting (* syn_keep *) before the definition of the signal

i.e.

(* syn_keep *)   wire            wire_i_want_to_keep;

r.b.

 

[dolby.yang]

synplify synkeep

Thanks your reply, i have put the syn_keep after the signal define,this attribution seams no any use for this issue .

wire wire_i_want to keep /*sythesis syn_keep =1 */;