1 | #ifdef VHDL |
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2 | /* |
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3 | * $Id: Multiplier_vhdl_xilinx_body.cpp 116 2009-04-30 13:51:41Z moulu $ |
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4 | * |
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5 | * [ Description ] |
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6 | * |
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7 | */ |
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8 | |
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9 | #include "Behavioural/Generic/Multiplier/include/Multiplier.h" |
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10 | |
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11 | namespace morpheo { |
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12 | namespace behavioural { |
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13 | namespace generic { |
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14 | namespace multiplier { |
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15 | |
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16 | #undef FUNCTION |
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17 | #define FUNCTION "Multiplier::vhdl_xilinx_body" |
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18 | void Multiplier::vhdl_xilinx_body (Vhdl * & vhdl) |
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19 | { |
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20 | |
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21 | log_begin(Multiplier,FUNCTION); |
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22 | vhdl->set_body (0,"ins_mult_gen_v9_0 : mult_gen_v9_0"); |
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23 | vhdl->set_body (1,"generic map ("); |
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24 | vhdl->set_body (2," c_xdevicefamily => \"virtex4\", -- specifies target Xilinx FPGA name"); |
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25 | vhdl->set_body (2," c_a_width => "+toString(_param->_size_data)+", -- width of A port"); |
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26 | vhdl->set_body (2," c_a_type => "+toString(_param->_sign)+", -- datatype of A port"); |
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27 | vhdl->set_body (2," c_b_width => "+toString(_param->_size_data)+", -- width of B port"); |
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28 | vhdl->set_body (2," c_b_type => "+toString(_param->_sign)+", -- datatype of B port"); |
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29 | vhdl->set_body (2," c_out_high => "+toString((_param->_size_data*2)-1)+", -- MSB of P output port (N-1 downto 0 convention)"); |
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30 | vhdl->set_body (2," c_mult_type => 1, -- Type of multiplier to implement"); |
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31 | vhdl->set_body (2," c_opt_goal => 1, -- Optimization of multiplier"); |
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32 | vhdl->set_body (2," c_has_ce => 1, -- Use clock enable on all registers"); |
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33 | vhdl->set_body (2," c_pipe_stages => "+toString(_param->_latency)+") -- Number of register stages required"); |
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34 | |
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35 | vhdl->set_body (1,"port map ("); |
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36 | vhdl->set_body (2,"clk => in_CLOCK ,"); |
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37 | vhdl->set_body (2,"a => in_MULTIPLIER_DATA_IN_0,"); |
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38 | vhdl->set_body (2,"b => in_MULTIPLIER_DATA_IN_1,"); |
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39 | vhdl->set_body (2,"ce => in_MULTIPLIER_NSTALL ,"); |
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40 | vhdl->set_body (2,"p => sig_MULTIPLIER_DATA_OUT);"); |
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41 | |
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42 | vhdl->set_body (0,"out_MULTIPLIER_DATA_LSB_OUT <= sig_MULTIPLIER_DATA_OUT("+toString(_param->_size_data-1)+" downto 0);"); |
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43 | vhdl->set_body (0,"out_MULTIPLIER_DATA_MSB_OUT <= sig_MULTIPLIER_DATA_OUT("+toString((_param->_size_data*2)-1)+" downto "+toString(_param->_size_data)+");"); |
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44 | |
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45 | log_end(Multiplier,FUNCTION); |
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46 | }; |
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47 | |
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48 | }; // end namespace multiplier |
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49 | }; // end namespace generic |
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50 | |
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51 | }; // end namespace behavioural |
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52 | }; // end namespace morpheo |
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53 | #endif |
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