#ifdef VHDL /* * $Id: Multiplier_vhdl_xilinx_body.cpp 116 2009-04-30 13:51:41Z moulu $ * * [ Description ] * */ #include "Behavioural/Generic/Multiplier/include/Multiplier.h" namespace morpheo { namespace behavioural { namespace generic { namespace multiplier { #undef FUNCTION #define FUNCTION "Multiplier::vhdl_xilinx_body" void Multiplier::vhdl_xilinx_body (Vhdl * & vhdl) { log_begin(Multiplier,FUNCTION); vhdl->set_body (0,"ins_mult_gen_v9_0 : mult_gen_v9_0"); vhdl->set_body (1,"generic map ("); vhdl->set_body (2," c_xdevicefamily => \"virtex4\", -- specifies target Xilinx FPGA name"); vhdl->set_body (2," c_a_width => "+toString(_param->_size_data)+", -- width of A port"); vhdl->set_body (2," c_a_type => "+toString(_param->_sign)+", -- datatype of A port"); vhdl->set_body (2," c_b_width => "+toString(_param->_size_data)+", -- width of B port"); vhdl->set_body (2," c_b_type => "+toString(_param->_sign)+", -- datatype of B port"); vhdl->set_body (2," c_out_high => "+toString((_param->_size_data*2)-1)+", -- MSB of P output port (N-1 downto 0 convention)"); vhdl->set_body (2," c_mult_type => 1, -- Type of multiplier to implement"); vhdl->set_body (2," c_opt_goal => 1, -- Optimization of multiplier"); vhdl->set_body (2," c_has_ce => 1, -- Use clock enable on all registers"); vhdl->set_body (2," c_pipe_stages => "+toString(_param->_latency)+") -- Number of register stages required"); vhdl->set_body (1,"port map ("); vhdl->set_body (2,"clk => in_CLOCK ,"); vhdl->set_body (2,"a => in_MULTIPLIER_DATA_IN_0,"); vhdl->set_body (2,"b => in_MULTIPLIER_DATA_IN_1,"); vhdl->set_body (2,"ce => in_MULTIPLIER_NSTALL ,"); vhdl->set_body (2,"p => sig_MULTIPLIER_DATA_OUT);"); vhdl->set_body (0,"out_MULTIPLIER_DATA_LSB_OUT <= sig_MULTIPLIER_DATA_OUT("+toString(_param->_size_data-1)+" downto 0);"); vhdl->set_body (0,"out_MULTIPLIER_DATA_MSB_OUT <= sig_MULTIPLIER_DATA_OUT("+toString((_param->_size_data*2)-1)+" downto "+toString(_param->_size_data)+");"); log_end(Multiplier,FUNCTION); }; }; // end namespace multiplier }; // end namespace generic }; // end namespace behavioural }; // end namespace morpheo #endif