

Command Reference2.  FPGA Express Shell Commandsset_chip_primitive


_N_A_M_E
          set_chip_primitive
                         Specify optimization option for
                         primitives.


SYNTAX
          string set_chip_primitive _p_r_e_s_e_r_v_e, _o_p_t_i_m_i_z_e, _i_n_h_e_r_i_t

          string    _p_r_e_s_e_r_v_e, _o_p_t_i_m_i_z_e, _i_n_h_e_r_i_t


ARGUMENTS
          _p_r_e_s_e_r_v_e       This option preserves all existing
                         target primitives. It may be over-ridden
                         by lower level options.


          _o_p_t_i_m_i_z_e       This option allows the existing target
                         primitives to be un-mapped and optimized
                         with surrounding logic. This option is
                         the default.


          _i_n_h_e_r_i_t        This will make the current chip inherit
                         the primitive option of its upper-level
                         design.


DESCRIPTION
          set_chip_primitive controls how existing target
          primitive cells are treated during optimization.
          Existing target primitives are either preserved or
          optimized depending on the setting.


EXAMPLES
          To preserve all the primitives in the design, do the
          following:

          fe_shell > set_chip_primitive _p_r_e_s_e_r_v_e


          To preserve the primitives in some modules below the
          root level, use the command set_module_primitive.


SEE ALSO
          set_module_primitive (2), set_chip_hierarchy (2),


v3.0      Synopsys Inc. 1988-1998. All rights reserved.       2-1


set_chip_primitive2.  FPGA Express Shell CommandsCommand Reference


          set_chip_objective (2), set_chip_sharing (2)


2-2       Synopsys Inc. 1988-1998. All rights reserved.      v3.0