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0001 <Comment>--------------------------------------------------------------------------------</Comment><br/>
0002 <Comment>-- light52_muldiv.vhdl -- Simple multiplier/divider module.</Comment><br/>
0003 <Comment>--------------------------------------------------------------------------------</Comment><br/>
0004 <Comment>-- The 8051 mul and div instructions are both unsigned and operands are 8 bit.</Comment><br/>
0005 <Comment>--</Comment><br/>
0006 <Comment>-- This module implements the division as a sequential state machine which takes</Comment><br/>
0007 <Comment>-- 8 cycles to complete. </Comment><br/>
0008 <Comment>-- The multiplier can be implemented as sequential or as combinational, in which</Comment><br/>
0009 <Comment>-- case it will use a DSP block in those architectures that support it.</Comment><br/>
0010 <Comment>-- No attempt has been made to make this module generic or reusable.</Comment><br/>
0011 <Comment>--</Comment><br/>
0012 <Comment>-- If you want a combinational multiplier but don't want to waste a DSP block </Comment><br/>
0013 <Comment>-- in this module, you need to modify this file adding whatever synthesis </Comment><br/>
0014 <Comment>-- pragmas your tool of choice needs.</Comment><br/>
0015 <Comment>--</Comment><br/>
0016 <Comment>-- Note that unlike the division state machine, the combinational product logic</Comment><br/>
0017 <Comment>-- is always operating: when SEQUENTIAL_MULTIPLIER=true, prod_out equals </Comment><br/>
0018 <Comment>-- data_a * data_b with a latency of 1 clock cycle, and mul_ready is hardwired</Comment><br/>
0019 <Comment>-- to '1'.</Comment><br/>
0020 <Comment>--</Comment><br/>
0021 <Comment>-- </Comment><Alert Level 2>FIXME</Alert Level 2><Comment> explain division algorithm.</Comment><br/>
0022 <Comment>--------------------------------------------------------------------------------</Comment><br/>
0023 <Comment>-- GENERICS:</Comment><br/>
0024 <Comment>-- </Comment><br/>
0025 <Comment>-- SEQUENTIAL_MULTIPLIER        -- Sequential vs. combinational multiplier.</Comment><br/>
0026 <Comment>--  When true, a sequential implementation will be used for the multiplier, </Comment><br/>
0027 <Comment>--  which will usually save a lot of logic or a dedicated multiplier.</Comment><br/>
0028 <Comment>--  When false, a combinational registered multiplier will be used.</Comment><br/>
0029 <Comment>--</Comment><br/>
0030 <Comment>--------------------------------------------------------------------------------</Comment><br/>
0031 <Comment>-- INTERFACE SIGNALS:</Comment><br/>
0032 <Comment>--</Comment><br/>
0033 <Comment>-- clk :            Clock, active rising edge.</Comment><br/>
0034 <Comment>-- reset :          Synchronous reset. Clears only the control registers not</Comment><br/>
0035 <Comment>--                  visible to the programmer -- not the output registers.</Comment><br/>
0036 <Comment>-- </Comment><br/>
0037 <Comment>-- data_a :         Numerator input, should be connected to the ACC register.</Comment><br/>
0038 <Comment>-- data_b :         Denominator input, should be connected to the B register.</Comment><br/>
0039 <Comment>-- start :          Assert for 1 cycle to start the division state machine</Comment><br/>
0040 <Comment>--                  (and the product if SEQUENTIAL_MULTIPLIER=true);</Comment><br/>
0041 <Comment>-- </Comment><br/>
0042 <Comment>-- prod_out :       Product output, valid only when mul_ready='1'.</Comment><br/>
0043 <Comment>-- quot_out :       Quotient output, valid only when div_ready='1'.</Comment><br/>
0044 <Comment>-- rem_out :        Remainder output, valid only when div_ready='1'.</Comment><br/>
0045 <Comment>-- div_ov_out :     Division overflow flag, valid only when div_ready='1'.</Comment><br/>
0046 <Comment>-- mul_ov_out :     Product overflow flag, valid only when mul_ready='1'.</Comment><br/>
0047 <Comment>-- </Comment><br/>
0048 <Comment>-- mul_ready :      Asserted permanently if SEQUENTIAL_MULTIPLIER=false.</Comment><br/>
0049 <Comment>-- div_ready :      Deasserted the cycle after start is asserted.</Comment><br/>
0050 <Comment>--                  Asserted when the division has completed.</Comment><br/>
0051 <Comment>--</Comment><br/>
0052 <Comment>--------------------------------------------------------------------------------</Comment><br/>
0053 <Comment>-- Copyright (C) 2012 Jose A. Ruiz</Comment><br/>
0054 <Comment>--                                                              </Comment><br/>
0055 <Comment>-- This source file may be used and distributed without         </Comment><br/>
0056 <Comment>-- restriction provided that this copyright statement is not    </Comment><br/>
0057 <Comment>-- removed from the file and that any derivative work contains  </Comment><br/>
0058 <Comment>-- the original copyright notice and the associated disclaimer. </Comment><br/>
0059 <Comment>--                                                              </Comment><br/>
0060 <Comment>-- This source file is free software; you can redistribute it   </Comment><br/>
0061 <Comment>-- and/or modify it under the terms of the GNU Lesser General   </Comment><br/>
0062 <Comment>-- Public License as published by the Free Software Foundation; </Comment><br/>
0063 <Comment>-- either version 2.1 of the License, or (at your option) any   </Comment><br/>
0064 <Comment>-- later version.                                               </Comment><br/>
0065 <Comment>--                                                              </Comment><br/>
0066 <Comment>-- This source is distributed in the hope that it will be       </Comment><br/>
0067 <Comment>-- useful, but WITHOUT ANY WARRANTY; without even the implied   </Comment><br/>
0068 <Comment>-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      </Comment><br/>
0069 <Comment>-- PURPOSE.  See the GNU Lesser General Public License for more </Comment><br/>
0070 <Comment>-- details.                                                     </Comment><br/>
0071 <Comment>--                                                              </Comment><br/>
0072 <Comment>-- You should have received a copy of the GNU Lesser General    </Comment><br/>
0073 <Comment>-- Public License along with this source; if not, download it   </Comment><br/>
0074 <Comment>-- from http://www.opencores.org/lgpl.shtml</Comment><br/>
0075 <Comment>--------------------------------------------------------------------------------</Comment><br/>
0076 <Normal Text></Normal Text><br/>
0077 <Keyword>library</Keyword><Normal Text> ieee;</Normal Text><br/>
0078 <Keyword>use</Keyword><Normal Text> ieee</Normal Text><Operator>.</Operator><Normal Text>std_logic_1164</Normal Text><Operator>.</Operator><Keyword>all</Keyword><Normal Text>;</Normal Text><br/>
0079 <Keyword>use</Keyword><Normal Text> ieee</Normal Text><Operator>.</Operator><Normal Text>numeric_std</Normal Text><Operator>.</Operator><Keyword>all</Keyword><Normal Text>;</Normal Text><br/>
0080 <Normal Text></Normal Text><br/>
0081 <Keyword>use</Keyword><Normal Text> work</Normal Text><Operator>.</Operator><Normal Text>light52_pkg</Normal Text><Operator>.</Operator><Keyword>all</Keyword><Normal Text>;</Normal Text><br/>
0082 <Keyword>use</Keyword><Normal Text> work</Normal Text><Operator>.</Operator><Normal Text>light52_ucode_pkg</Normal Text><Operator>.</Operator><Keyword>all</Keyword><Normal Text>;</Normal Text><br/>
0083 <Normal Text></Normal Text><br/>
0084 <Control>entity</Control><Normal Text> </Normal Text><Name>light52_muldiv</Name><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0085 <Normal Text>    </Normal Text><Control>generic</Control><Normal Text> (</Normal Text><br/>
0086 <Normal Text>        SEQUENTIAL_MULTIPLIER </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>boolean</Data Type><Normal Text> </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Keyword>false</Keyword><br/>
0087 <Normal Text>    );</Normal Text><br/>
0088 <Normal Text>    </Normal Text><Control>port</Control><Normal Text>(</Normal Text><br/>
0089 <Normal Text>        clk </Normal Text><Operator>:</Operator><Normal Text>                   </Normal Text><Keyword>in</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0090 <Normal Text>        reset </Normal Text><Operator>:</Operator><Normal Text>                 </Normal Text><Keyword>in</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0091 <Normal Text></Normal Text><br/>
0092 <Normal Text>        data_a </Normal Text><Operator>:</Operator><Normal Text>                </Normal Text><Keyword>in</Keyword><Normal Text> t_byte;</Normal Text><br/>
0093 <Normal Text>        data_b </Normal Text><Operator>:</Operator><Normal Text>                </Normal Text><Keyword>in</Keyword><Normal Text> t_byte;</Normal Text><br/>
0094 <Normal Text>        start </Normal Text><Operator>:</Operator><Normal Text>                 </Normal Text><Keyword>in</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0095 <Normal Text></Normal Text><br/>
0096 <Normal Text>        prod_out </Normal Text><Operator>:</Operator><Normal Text>              </Normal Text><Keyword>out</Keyword><Normal Text> t_word;</Normal Text><br/>
0097 <Normal Text>        quot_out </Normal Text><Operator>:</Operator><Normal Text>              </Normal Text><Keyword>out</Keyword><Normal Text> t_byte;</Normal Text><br/>
0098 <Normal Text>        rem_out </Normal Text><Operator>:</Operator><Normal Text>               </Normal Text><Keyword>out</Keyword><Normal Text> t_byte;</Normal Text><br/>
0099 <Normal Text>        div_ov_out </Normal Text><Operator>:</Operator><Normal Text>            </Normal Text><Keyword>out</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0100 <Normal Text>        mul_ov_out </Normal Text><Operator>:</Operator><Normal Text>            </Normal Text><Keyword>out</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0101 <Normal Text></Normal Text><br/>
0102 <Normal Text>        mul_ready </Normal Text><Operator>:</Operator><Normal Text>             </Normal Text><Keyword>out</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0103 <Normal Text>        div_ready </Normal Text><Operator>:</Operator><Normal Text>             </Normal Text><Keyword>out</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><br/>
0104 <Normal Text>    );</Normal Text><br/>
0105 <Control>end entity light52_muldiv;</Control><br/>
0106 <Normal Text></Normal Text><br/>
0107 <Control>architecture</Control><Normal Text> </Normal Text><Name>sequential</Name><Normal Text> </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Reference>light52_muldiv</Reference><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0108 <Normal Text></Normal Text><br/>
0109 <Signal>signal</Signal><Normal Text> bit_ctr </Normal Text><Operator>:</Operator><Normal Text>            </Normal Text><Data Type>integer</Data Type><Normal Text> </Normal Text><Keyword>range</Keyword><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>8</Integer><Normal Text>;</Normal Text><br/>
0110 <Normal Text></Normal Text><br/>
0111 <Signal>signal</Signal><Normal Text> b_shift_reg </Normal Text><Operator>:</Operator><Normal Text>        t_word;</Normal Text><br/>
0112 <Normal Text></Normal Text><br/>
0113 <Signal>signal</Signal><Normal Text> den_ge_256 </Normal Text><Operator>:</Operator><Normal Text>         </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0114 <Signal>signal</Signal><Normal Text> num_ge_den </Normal Text><Operator>:</Operator><Normal Text>         </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0115 <Signal>signal</Signal><Normal Text> sub_num </Normal Text><Operator>:</Operator><Normal Text>            </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0116 <Normal Text></Normal Text><br/>
0117 <Signal>signal</Signal><Normal Text> denominator </Normal Text><Operator>:</Operator><Normal Text>        t_byte;</Normal Text><br/>
0118 <Signal>signal</Signal><Normal Text> rem_reg </Normal Text><Operator>:</Operator><Normal Text>            t_byte;</Normal Text><br/>
0119 <Signal>signal</Signal><Normal Text> quot_reg </Normal Text><Operator>:</Operator><Normal Text>           t_byte;</Normal Text><br/>
0120 <Signal>signal</Signal><Normal Text> prod_reg </Normal Text><Operator>:</Operator><Normal Text>           t_word;</Normal Text><br/>
0121 <Signal>signal</Signal><Normal Text> ready </Normal Text><Operator>:</Operator><Normal Text>              </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0122 <Normal Text></Normal Text><br/>
0123 <Signal>signal</Signal><Normal Text> load_regs </Normal Text><Operator>:</Operator><Normal Text>          </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0124 <Normal Text></Normal Text><br/>
0125 <Control>begin</Control><br/>
0126 <Normal Text></Normal Text><br/>
0127 <Comment>-- Control logic ---------------------------------------------------------------</Comment><br/>
0128 <Normal Text></Normal Text><br/>
0129 <Name>control_counter</Name><Operator>:</Operator><Normal Text> </Normal Text><Process>process</Process><Normal Text>(clk)</Normal Text><br/>
0130 <Normal Text>    </Normal Text><Keyword>alias</Keyword><Normal Text> sig </Normal Text><Keyword>is</Keyword><Normal Text> </Normal Text><Operator><<</Operator><Signal>signal</Signal><Normal Text> g_test(</Normal Text><Integer>0</Integer><Normal Text>)</Normal Text><Operator>.</Operator><Normal Text>i_test</Normal Text><Operator>.</Operator><Normal Text>sig </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Operator>>></Operator><Normal Text>;</Normal Text><br/>
0131 <Process>begin</Process><br/>
0132 <Normal Text>    </Normal Text><Control>if</Control><Normal Text> clk</Normal Text><Attribute>'event</Attribute><Normal Text> </Normal Text><Keyword>and</Keyword><Normal Text> clk</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><br/>
0133 <Normal Text>        </Normal Text><Control>if</Control><Normal Text> reset</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><br/>
0134 <Normal Text>            bit_ctr </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Integer>8</Integer><Normal Text>;</Normal Text><br/>
0135 <Normal Text>        </Normal Text><Control>else</Control><br/>
0136 <Normal Text>            </Normal Text><Control>if</Control><Normal Text> load_regs</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><br/>
0137 <Normal Text>                bit_ctr </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>;</Normal Text><br/>
0138 <Normal Text>            </Normal Text><Control>elsif</Control><Normal Text> bit_ctr </Normal Text><Operator>/=</Operator><Normal Text> </Normal Text><Integer>8</Integer><Normal Text> </Normal Text><Control>then</Control><br/>
0139 <Normal Text>                bit_ctr </Normal Text><Operator><=</Operator><Normal Text> bit_ctr </Normal Text><Operator>+</Operator><Normal Text> </Normal Text><Integer>1</Integer><Normal Text>;</Normal Text><br/>
0140 <Normal Text>            </Normal Text><Control>end if;</Control><br/>
0141 <Normal Text>        </Normal Text><Control>end if;</Control><br/>
0142 <Normal Text>    </Normal Text><Control>end if;</Control><br/>
0143 <Process>end process control_counter;</Process><br/>
0144 <Normal Text></Normal Text><br/>
0145 <Comment>-- Internal signal ready is asserted after 8 cycles.</Comment><br/>
0146 <Comment>-- The sequential multiplier will use this signal too, IF it takes 8 cycles.</Comment><br/>
0147 <Normal Text></Normal Text><br/>
0148 <Normal Text>ready </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text> </Normal Text><Keyword>when</Keyword><Normal Text> bit_ctr </Normal Text><Operator>>=</Operator><Normal Text> </Normal Text><Integer>8</Integer><Normal Text> </Normal Text><Keyword>else</Keyword><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>;</Normal Text><br/>
0149 <Normal Text></Normal Text><br/>
0150 <Normal Text></Normal Text><br/>
0151 <Comment>---- Divider logic -------------------------------------------------------------</Comment><br/>
0152 <Normal Text></Normal Text><br/>
0153 <Comment>-- What we do is a simple base-2 'shift-and-subtract' algorithm that takes</Comment><br/>
0154 <Comment>-- 8 cycles to complete. We can get away with this because we deal with unsigned</Comment><br/>
0155 <Comment>-- numbers only.</Comment><br/>
0156 <Normal Text></Normal Text><br/>
0157 <Name>divider_registers</Name><Operator>:</Operator><Normal Text> </Normal Text><Process>process</Process><Normal Text>(clk)</Normal Text><br/>
0158 <Process>begin</Process><br/>
0159 <Normal Text>    </Normal Text><Control>if</Control><Normal Text> clk</Normal Text><Attribute>'event</Attribute><Normal Text> </Normal Text><Keyword>and</Keyword><Normal Text> clk</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><br/>
0160 <Normal Text>        </Normal Text><Comment>-- denominator shift register</Comment><br/>
0161 <Normal Text>        </Normal Text><Control>if</Control><Normal Text> load_regs</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><br/>
0162 <Normal Text>            b_shift_reg </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Vector>"0"</Vector><Normal Text> </Normal Text><Operator>&</Operator><Normal Text> data_b </Normal Text><Operator>&</Operator><Normal Text> </Normal Text><Vector>"0000000"</Vector><Normal Text>;</Normal Text><br/>
0163 <Normal Text>            </Normal Text><Comment>-- Division overflow can be determined upon loading B reg data.</Comment><br/>
0164 <Normal Text>            </Normal Text><Comment>-- OV will be raised only on div-by-zero.</Comment><br/>
0165 <Normal Text>            </Normal Text><Control>if</Control><Normal Text> data_b</Normal Text><Operator>=</Operator><Normal Text>X</Normal Text><Vector>"00"</Vector><Normal Text> </Normal Text><Control>then</Control><br/>
0166 <Normal Text>                div_ov_out </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text>;</Normal Text><br/>
0167 <Normal Text>            </Normal Text><Control>else</Control><br/>
0168 <Normal Text>                div_ov_out </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>;</Normal Text><br/>
0169 <Normal Text>            </Normal Text><Control>end if;</Control><br/>
0170 <Normal Text>        </Normal Text><Control>else</Control><br/>
0171 <Normal Text>            b_shift_reg </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Vector>"0"</Vector><Normal Text> </Normal Text><Operator>&</Operator><Normal Text> b_shift_reg(b_shift_reg</Normal Text><Attribute>'high</Attribute><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>1</Integer><Normal Text>);</Normal Text><br/>
0172 <Normal Text>        </Normal Text><Control>end if;</Control><br/>
0173 <Normal Text>        </Normal Text><br/>
0174 <Normal Text>        </Normal Text><Comment>-- numerator register</Comment><br/>
0175 <Normal Text>        </Normal Text><Control>if</Control><Normal Text> load_regs</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><Normal Text> </Normal Text><br/>
0176 <Normal Text>            rem_reg </Normal Text><Operator><=</Operator><Normal Text> data_a;</Normal Text><br/>
0177 <Normal Text>        </Normal Text><Control>elsif</Control><Normal Text> bit_ctr</Normal Text><Operator>/=</Operator><Integer>8</Integer><Normal Text> </Normal Text><Keyword>and</Keyword><Normal Text> sub_num</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><Normal Text> </Normal Text><br/>
0178 <Normal Text>            rem_reg </Normal Text><Operator><=</Operator><Normal Text> rem_reg </Normal Text><Operator>-</Operator><Normal Text> denominator;</Normal Text><br/>
0179 <Normal Text>        </Normal Text><Control>end if;</Control><br/>
0180 <Normal Text></Normal Text><br/>
0181 <Normal Text>        </Normal Text><Comment>--- quotient register</Comment><br/>
0182 <Normal Text>        </Normal Text><Control>if</Control><Normal Text> load_regs</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><br/>
0183 <Normal Text>            quot_reg </Normal Text><Operator><=</Operator><Normal Text> (</Normal Text><Range>others</Range><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>);</Normal Text><br/>
0184 <Normal Text>        </Normal Text><Control>elsif</Control><Normal Text> bit_ctr</Normal Text><Operator>/=</Operator><Integer>8</Integer><Normal Text> </Normal Text><Control>then</Control><br/>
0185 <Normal Text>            quot_reg </Normal Text><Operator><=</Operator><Normal Text> quot_reg(quot_reg</Normal Text><Attribute>'high-1</Attribute><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>) </Normal Text><Operator>&</Operator><Normal Text> sub_num;</Normal Text><br/>
0186 <Normal Text>        </Normal Text><Control>end if;</Control><br/>
0187 <Normal Text>        </Normal Text><br/>
0188 <Normal Text>        load_regs </Normal Text><Operator><=</Operator><Normal Text> start;</Normal Text><br/>
0189 <Normal Text>    </Normal Text><Control>end if;</Control><br/>
0190 <Process>end process divider_registers;</Process><br/>
0191 <Normal Text></Normal Text><br/>
0192 <Normal Text>denominator </Normal Text><Operator><=</Operator><Normal Text> b_shift_reg(</Normal Text><Integer>7</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>);</Normal Text><br/>
0193 <Normal Text></Normal Text><br/>
0194 <Comment>-- The 16-bit comparison between b_shift_reg (denominator) and the zero-extended </Comment><br/>
0195 <Comment>-- rem_reg (numerator) can be simplified by splitting it in 2: </Comment><br/>
0196 <Comment>-- If the shifted denominator high byte is not zero, it is >=256...</Comment><br/>
0197 <Normal Text>den_ge_256 </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text> </Normal Text><Keyword>when</Keyword><Normal Text> b_shift_reg(</Normal Text><Integer>15</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>8</Integer><Normal Text>) </Normal Text><Operator>/=</Operator><Normal Text> X</Normal Text><Vector>"00"</Vector><Normal Text> </Normal Text><Keyword>else</Keyword><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>;</Normal Text><br/>
0198 <Comment>-- ...otherwise we need to compare the low bytes.</Comment><br/>
0199 <Normal Text>num_ge_den </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text> </Normal Text><Keyword>when</Keyword><Normal Text> rem_reg </Normal Text><Operator>>=</Operator><Normal Text> denominator </Normal Text><Keyword>else</Keyword><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>;</Normal Text><br/>
0200 <Normal Text>sub_num </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text> </Normal Text><Keyword>when</Keyword><Normal Text> den_ge_256</Normal Text><Operator>=</Operator><Attribute>'0'</Attribute><Normal Text> </Normal Text><Keyword>and</Keyword><Normal Text> num_ge_den</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Keyword>else</Keyword><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>;</Normal Text><br/>
0201 <Normal Text></Normal Text><br/>
0202 <Normal Text></Normal Text><br/>
0203 <Normal Text>quot_out </Normal Text><Operator><=</Operator><Normal Text> quot_reg;</Normal Text><br/>
0204 <Normal Text>prod_out </Normal Text><Operator><=</Operator><Normal Text> prod_reg;</Normal Text><br/>
0205 <Normal Text>rem_out </Normal Text><Operator><=</Operator><Normal Text> rem_reg;</Normal Text><br/>
0206 <Normal Text></Normal Text><br/>
0207 <Normal Text>div_ready </Normal Text><Operator><=</Operator><Normal Text> ready;</Normal Text><br/>
0208 <Normal Text></Normal Text><br/>
0209 <Comment>---- Multiplier logic ----------------------------------------------------------</Comment><br/>
0210 <Normal Text></Normal Text><br/>
0211 <Comment>---- Combinational multiplier -----------------------------</Comment><br/>
0212 <Name>multiplier_combinational</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>if</Control><Normal Text> </Normal Text><Keyword>not</Keyword><Normal Text> SEQUENTIAL_MULTIPLIER </Normal Text><Control>generate</Control><br/>
0213 <Normal Text></Normal Text><br/>
0214 <Name>registered_combinational_multiplier</Name><Operator>:</Operator><Process>process</Process><Normal Text>(clk)</Normal Text><br/>
0215 <Process>begin</Process><br/>
0216 <Normal Text>    </Normal Text><Control>if</Control><Normal Text> clk</Normal Text><Attribute>'event</Attribute><Normal Text> </Normal Text><Keyword>and</Keyword><Normal Text> clk</Normal Text><Operator>=</Operator><Attribute>'1'</Attribute><Normal Text> </Normal Text><Control>then</Control><br/>
0217 <Normal Text>        prod_reg </Normal Text><Operator><=</Operator><Normal Text> data_a </Normal Text><Operator>*</Operator><Normal Text> data_b; </Normal Text><Comment>-- t_byte is unsigned</Comment><br/>
0218 <Normal Text>    </Normal Text><Control>end if;</Control><br/>
0219 <Process>end process registered_combinational_multiplier;</Process><br/>
0220 <Normal Text></Normal Text><br/>
0221 <Comment>-- The multiplier output is valid in the cycle after the operands are loaded,</Comment><br/>
0222 <Comment>-- so by the time MUL is executed it's already done.</Comment><br/>
0223 <Normal Text>mul_ready </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text>;</Normal Text><br/>
0224 <Normal Text></Normal Text><br/>
0225 <Normal Text>mul_ov_out </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text> </Normal Text><Keyword>when</Keyword><Normal Text> prod_reg(</Normal Text><Integer>15</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>8</Integer><Normal Text>)</Normal Text><Operator>/=</Operator><Normal Text>X</Normal Text><Vector>"00"</Vector><Normal Text> </Normal Text><Keyword>else</Keyword><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>;</Normal Text><br/>
0226 <Normal Text>prod_out </Normal Text><Operator><=</Operator><Normal Text> prod_reg;</Normal Text><br/>
0227 <Normal Text></Normal Text><br/>
0228 <Control>end generate multiplier_combinational;</Control><br/>
0229 <Normal Text></Normal Text><br/>
0230 <Comment>---- Sequential multiplier --------------------------------</Comment><br/>
0231 <Name>multiplier_sequential</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>if</Control><Normal Text> SEQUENTIAL_MULTIPLIER </Normal Text><Control>generate</Control><br/>
0232 <Normal Text></Normal Text><br/>
0233 <Keyword>assert</Keyword><Normal Text> </Normal Text><Keyword>false</Keyword><br/>
0234 <Keyword>report</Keyword><Normal Text> </Normal Text><Vector>"Sequential multiplier implementation not done yet."</Vector><Operator>&</Operator><br/>
0235 <Normal Text>       </Normal Text><Vector>" Use combinational implementation."</Vector><br/>
0236 <Keyword>severity</Keyword><Normal Text> </Normal Text><Keyword>failure</Keyword><Normal Text>;</Normal Text><br/>
0237 <Normal Text></Normal Text><br/>
0238 <Control>end generate multiplier_sequential;</Control><br/>
0239 <Normal Text></Normal Text><br/>
0240 <Control>end sequential;</Control><br/>
0241 <Normal Text></Normal Text><br/>
0242 <Normal Text></Normal Text><br/>
0243 <Keyword>with</Keyword><Normal Text> Types; </Normal Text><Keyword>use</Keyword><Normal Text> Types;</Normal Text><br/>
0244 <Keyword>with</Keyword><Normal Text> Files_Map;</Normal Text><br/>
0245 <Normal Text></Normal Text><br/>
0246 <Control>package</Control><Normal Text> </Normal Text><Name>fixed_pkg</Name><Normal Text> </Normal Text><Keyword>is</Keyword><Normal Text> </Normal Text><Keyword>new</Keyword><Normal Text> </Normal Text><Name>IEEE</Name><Operator>.</Operator><Normal Text>fixed_generic_pkg</Normal Text><br/>
0247 <Normal Text>  </Normal Text><Keyword>generic map </Keyword><Normal Text>(</Normal Text><br/>
0248 <Normal Text>    fixed_overflow_style </Normal Text><Operator>=></Operator><Normal Text> IEEE</Normal Text><Operator>.</Operator><Normal Text>fixed_float_types</Normal Text><Operator>.</Operator><Normal Text>fixed_saturate</Normal Text><Operator>,</Operator><br/>
0249 <Normal Text>    fixed_guard_bits     </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Integer>3</Integer><Operator>,</Operator><br/>
0250 <Normal Text>    no_warning           </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Keyword>false</Keyword><br/>
0251 <Normal Text>    );</Normal Text><br/>
0252 <Normal Text></Normal Text><br/>
0253 <Control>package</Control><Normal Text> </Normal Text><Name>p</Name><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0254 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> int_ptr </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>access</Keyword><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text>;</Normal Text><br/>
0255 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> rec </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>record</Keyword><br/>
0256 <Normal Text>        data  </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>std_logic_vector</Data Type><Normal Text>(</Normal Text><Integer>31</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>);</Normal Text><br/>
0257 <Normal Text>        ack   </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0258 <Normal Text>        value </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text>;</Normal Text><br/>
0259 <Normal Text>        link  </Normal Text><Operator>:</Operator><Normal Text> rec_ptr;</Normal Text><br/>
0260 <Normal Text>    </Normal Text><Keyword>end record;</Keyword><br/>
0261 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> int_vec </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>array</Keyword><Normal Text> (</Normal Text><Data Type>integer</Data Type><Normal Text> </Normal Text><Keyword>range</Keyword><Normal Text> </Normal Text><Operator><></Operator><Normal Text>) </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text>;</Normal Text><br/>
0262 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> int_vec_ptr </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>access</Keyword><Normal Text> int_vec;</Normal Text><br/>
0263 <Normal Text>    </Normal Text><Keyword>procedure</Keyword><Normal Text> </Normal Text><Name>UNIFORM</Name><Normal Text>(</Normal Text><Signal>variable</Signal><Normal Text> SEED1</Normal Text><Operator>,</Operator><Normal Text> SEED2 </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>inout</Keyword><Normal Text> </Normal Text><Data Type>POSITIVE</Data Type><Normal Text>; </Normal Text><Signal>variable</Signal><Normal Text> X </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>out</Keyword><Normal Text> </Normal Text><Data Type>REAL</Data Type><Normal Text>);</Normal Text><br/>
0264 <Normal Text>    </Normal Text><Signal>constant</Signal><Normal Text> def_arr </Normal Text><Operator>:</Operator><Normal Text> t_int_array </Normal Text><Operator>:=</Operator><Normal Text> (</Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>2</Integer><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Integer>10</Integer><Normal Text>);</Normal Text><br/>
0265 <Normal Text></Normal Text><br/>
0266 <Normal Text>    </Normal Text><Comment>-- type range</Comment><br/>
0267 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> newInt </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>range</Keyword><Normal Text> </Normal Text><Operator>-</Operator><Integer>4</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>3</Integer><Normal Text>;</Normal Text><br/>
0268 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> CAPACITY </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>range</Keyword><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>1</Integer><Exponent>E5</Exponent><Normal Text> </Normal Text><Control>units</Control><br/>
0269 <Normal Text>        pF;</Normal Text><br/>
0270 <Normal Text>        nF </Normal Text><Operator>=</Operator><Normal Text> </Normal Text><Integer>1000</Integer><Normal Text> pF;</Normal Text><br/>
0271 <Normal Text>    </Normal Text><Control>end units;</Control><br/>
0272 <Normal Text></Normal Text><br/>
0273 <Normal Text>    </Normal Text><Comment>-- type protected</Comment><br/>
0274 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> prot </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>protected</Keyword><br/>
0275 <Normal Text>        </Normal Text><Redirection>function</Redirection><Normal Text> </Normal Text><Name>meth</Name><Normal Text>(a </Normal Text><Operator>:</Operator><Normal Text> int) </Normal Text><Control>return</Control><Normal Text> </Normal Text><Data Type>bit</Data Type><Normal Text>;</Normal Text><br/>
0276 <Normal Text>    </Normal Text><Keyword>end protected;</Keyword><br/>
0277 <Normal Text></Normal Text><br/>
0278 <Normal Text>    </Normal Text><Comment>-- type protected body</Comment><br/>
0279 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> prot </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>protected</Keyword><Normal Text> </Normal Text><Keyword>body</Keyword><br/>
0280 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> var </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>positive</Data Type><Normal Text>;</Normal Text><br/>
0281 <Normal Text>        </Normal Text><Signal>constant</Signal><Normal Text> const </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>boolean</Data Type><Normal Text>;</Normal Text><br/>
0282 <Normal Text></Normal Text><br/>
0283 <Normal Text>        </Normal Text><Redirection>function</Redirection><Normal Text> </Normal Text><Name>meth</Name><Normal Text>(a </Normal Text><Operator>:</Operator><Normal Text> int) </Normal Text><Control>return</Control><Normal Text> </Normal Text><Data Type>bit</Data Type><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0284 <Normal Text>        </Normal Text><Redirection>begin</Redirection><br/>
0285 <Normal Text>        </Normal Text><Redirection>end function;</Redirection><br/>
0286 <Normal Text>    </Normal Text><Keyword>end protected body;</Keyword><br/>
0287 <Normal Text></Normal Text><br/>
0288 <Normal Text>    </Normal Text><Redirection>function</Redirection><Normal Text> </Normal Text><Name>\?=\</Name><Normal Text> (L</Normal Text><Operator>,</Operator><Normal Text> R  </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>BOOLEAN</Data Type><Normal Text>) </Normal Text><Control>return</Control><Normal Text> </Normal Text><Data Type>BOOLEAN</Data Type><Normal Text>;</Normal Text><br/>
0289 <Normal Text></Normal Text><br/>
0290 <Control>end package;</Control><br/>
0291 <Normal Text></Normal Text><br/>
0292 <Control>package</Control><Normal Text> </Normal Text><Control>body</Control><Normal Text> </Normal Text><Name>p</Name><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0293 <Normal Text>    </Normal Text><Redirection>function</Redirection><Normal Text> </Normal Text><Name>\?=\</Name><Normal Text> (L</Normal Text><Operator>,</Operator><Normal Text> R </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>BOOLEAN</Data Type><Normal Text>) </Normal Text><Control>return</Control><Normal Text> </Normal Text><Data Type>BOOLEAN</Data Type><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0294 <Normal Text>    </Normal Text><Redirection>begin</Redirection><br/>
0295 <Normal Text>        </Normal Text><Control>if</Control><Normal Text> </Normal Text><Keyword>not</Keyword><Normal Text> (format(format</Normal Text><Attribute>'left</Attribute><Normal Text>) </Normal Text><Operator>=</Operator><Normal Text> </Normal Text><Attribute>'%'</Attribute><Normal Text>) </Normal Text><Control>then</Control><br/>
0296 <Normal Text>            </Normal Text><Keyword>report</Keyword><Normal Text> </Normal Text><Vector>"to_string: Illegal format string """</Vector><Normal Text> </Normal Text><Operator>&</Operator><Normal Text> format </Normal Text><Operator>&</Operator><Normal Text> </Normal Text><Attribute>'"'</Attribute><br/>
0297 <Normal Text>                </Normal Text><Keyword>severity</Keyword><Normal Text> </Normal Text><Keyword>error</Keyword><Normal Text>;</Normal Text><br/>
0298 <Normal Text>            </Normal Text><Control>return</Control><Normal Text> </Normal Text><Vector>""</Vector><Normal Text>;</Normal Text><br/>
0299 <Normal Text>        </Normal Text><Control>end if;</Control><br/>
0300 <Normal Text>        </Normal Text><Control>return</Control><Normal Text> L </Normal Text><Operator>=</Operator><Normal Text> R;</Normal Text><br/>
0301 <Normal Text>    </Normal Text><Redirection>end function \?=\;</Redirection><br/>
0302 <Normal Text></Normal Text><br/>
0303 <Normal Text>    </Normal Text><Keyword>procedure</Keyword><Normal Text> </Normal Text><Name>test</Name><Normal Text> </Normal Text><Control>is</Control><br/>
0304 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> v </Normal Text><Operator>:</Operator><Normal Text> int_ptr;</Normal Text><br/>
0305 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> i </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text>;</Normal Text><br/>
0306 <Normal Text>    </Normal Text><Keyword>begin</Keyword><br/>
0307 <Normal Text>        v </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Keyword>null</Keyword><Normal Text>;</Normal Text><br/>
0308 <Normal Text>        deallocate(v);</Normal Text><br/>
0309 <Normal Text>        v </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Keyword>new</Keyword><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text>;</Normal Text><br/>
0310 <Normal Text>        v </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Keyword>new</Keyword><Normal Text> integer</Normal Text><Attribute>'(5)</Attribute><Normal Text>;</Normal Text><br/>
0311 <Normal Text>        v</Normal Text><Operator>.</Operator><Keyword>all</Keyword><Normal Text> </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Integer>5</Integer><Normal Text>;</Normal Text><br/>
0312 <Normal Text>        r</Normal Text><Operator>.</Operator><Keyword>all</Keyword><Operator>.</Operator><Normal Text>value </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Integer>1</Integer><Normal Text>;</Normal Text><br/>
0313 <Normal Text>        a </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Keyword>new</Keyword><Normal Text> int_vec(</Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>3</Integer><Normal Text>);</Normal Text><br/>
0314 <Normal Text>        a</Normal Text><Operator>.</Operator><Keyword>all</Keyword><Normal Text>(</Normal Text><Integer>5</Integer><Normal Text>) </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Integer>2</Integer><Normal Text>;</Normal Text><br/>
0315 <Normal Text>        a(</Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>2</Integer><Normal Text>) </Normal Text><Operator>:=</Operator><Normal Text> (</Normal Text><Integer>1</Integer><Operator>,</Operator><Normal Text> </Normal Text><Integer>2</Integer><Normal Text>);</Normal Text><br/>
0316 <Normal Text>        s </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Keyword>new</Keyword><Normal Text> string</Normal Text><Attribute>'("")</Attribute><Normal Text>;</Normal Text><br/>
0317 <Normal Text>    </Normal Text><Keyword>end procedure;</Keyword><br/>
0318 <Normal Text></Normal Text><br/>
0319 <Normal Text>    </Normal Text><Keyword>procedure</Keyword><Normal Text> </Normal Text><Name>test2</Name><Normal Text>(x </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>inout</Keyword><Normal Text> rec_ptr) </Normal Text><Control>is</Control><br/>
0320 <Normal Text>    </Normal Text><Keyword>begin</Keyword><br/>
0321 <Normal Text>        x</Normal Text><Operator>.</Operator><Normal Text>value </Normal Text><Operator>:=</Operator><Normal Text> x</Normal Text><Operator>.</Operator><Normal Text>value </Normal Text><Operator>+</Operator><Normal Text> </Normal Text><Integer>1</Integer><Normal Text>;</Normal Text><br/>
0322 <Normal Text>    </Normal Text><Keyword>end procedure;</Keyword><br/>
0323 <Normal Text></Normal Text><br/>
0324 <Normal Text>    </Normal Text><Keyword>procedure</Keyword><Normal Text> </Normal Text><Name>test3</Name><Normal Text> </Normal Text><Control>is</Control><br/>
0325 <Normal Text>        </Normal Text><Signal>type</Signal><Normal Text> a;</Normal Text><br/>
0326 <Normal Text>        </Normal Text><Signal>type</Signal><Normal Text> a </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>access</Keyword><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text>;</Normal Text><br/>
0327 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> v </Normal Text><Operator>:</Operator><Normal Text> a;</Normal Text><br/>
0328 <Normal Text>    </Normal Text><Keyword>begin</Keyword><br/>
0329 <Normal Text>    </Normal Text><Keyword>end procedure;</Keyword><br/>
0330 <Normal Text></Normal Text><br/>
0331 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> int_ptr_array </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>array</Keyword><Normal Text> (</Normal Text><Data Type>integer</Data Type><Normal Text> </Normal Text><Keyword>range</Keyword><Normal Text> </Normal Text><Operator><></Operator><Normal Text>) </Normal Text><Keyword>of</Keyword><Normal Text> int_ptr;</Normal Text><br/>
0332 <Normal Text></Normal Text><br/>
0333 <Normal Text>    </Normal Text><Keyword>procedure</Keyword><Normal Text> </Normal Text><Name>tets4</Name><Normal Text> </Normal Text><Control>is</Control><br/>
0334 <Normal Text>        </Normal Text><Signal>type</Signal><Normal Text> bvp </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>access</Keyword><Normal Text> </Normal Text><Data Type>bit_vector</Data Type><Normal Text>;</Normal Text><br/>
0335 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> y </Normal Text><Operator>:</Operator><Normal Text> int_ptr(</Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>3</Integer><Normal Text>) </Normal Text><Operator>:=</Operator><Normal Text> int_ptr</Normal Text><Attribute>'(null)</Attribute><Normal Text>;</Normal Text><br/>
0336 <Normal Text>    </Normal Text><Keyword>begin</Keyword><br/>
0337 <Normal Text>    </Normal Text><Keyword>end procedure;</Keyword><br/>
0338 <Normal Text></Normal Text><br/>
0339 <Normal Text>    </Normal Text><Keyword>procedure</Keyword><Normal Text> </Normal Text><Name>Restore_Origin</Name><Normal Text> (Mark </Normal Text><Operator>:</Operator><Normal Text> Instance_Index_Type) </Normal Text><Control>is</Control><br/>
0340 <Normal Text>    </Normal Text><Keyword>begin</Keyword><br/>
0341 <Normal Text>        </Normal Text><Control>for</Control><Normal Text> I </Normal Text><Keyword>in</Keyword><Normal Text> reverse Mark </Normal Text><Operator>+</Operator><Normal Text> </Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Operator>..</Operator><Normal Text> Prev_Instance_Table</Normal Text><Operator>.</Operator><Normal Text>Last </Normal Text><Control>loop</Control><br/>
0342 <Normal Text>            </Normal Text><Keyword>declare</Keyword><br/>
0343 <Normal Text>                El </Normal Text><Operator>:</Operator><Normal Text> Instance_Entry_Type renames Prev_Instance_Table</Normal Text><Operator>.</Operator><Normal Text>Table (I);</Normal Text><br/>
0344 <Normal Text>            </Normal Text><Keyword>begin</Keyword><br/>
0345 <Normal Text>                Origin_Table</Normal Text><Operator>.</Operator><Normal Text>Table (El</Normal Text><Operator>.</Operator><Normal Text>N) </Normal Text><Operator>:=</Operator><Normal Text> El</Normal Text><Operator>.</Operator><Normal Text>Old_Origin;</Normal Text><br/>
0346 <Normal Text>            </Normal Text><Keyword>end;</Keyword><br/>
0347 <Normal Text>        </Normal Text><Control>end loop;</Control><br/>
0348 <Normal Text>        Prev_Instance_Table</Normal Text><Operator>.</Operator><Normal Text>Set_Last (Mark);</Normal Text><br/>
0349 <Normal Text>    </Normal Text><Keyword>end Restore_Origin;</Keyword><br/>
0350 <Normal Text></Normal Text><br/>
0351 <Normal Text>    </Normal Text><Comment>--  Instantiate a list.  Simply create a new list and instantiate nodes of</Comment><br/>
0352 <Normal Text>    </Normal Text><Comment>--  that list.</Comment><br/>
0353 <Normal Text>    </Normal Text><Redirection>function</Redirection><Normal Text> </Normal Text><Name>Instantiate_Iir_List</Name><Normal Text> (L </Normal Text><Operator>:</Operator><Normal Text> Iir_List; Is_Ref </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>Boolean</Data Type><Normal Text>)</Normal Text><br/>
0354 <Normal Text>                                    </Normal Text><Control>return</Control><Normal Text> Iir_List</Normal Text><br/>
0355 <Normal Text>    </Normal Text><Keyword>is</Keyword><br/>
0356 <Normal Text>        Res </Normal Text><Operator>:</Operator><Normal Text> Iir_List;</Normal Text><br/>
0357 <Normal Text>        El </Normal Text><Operator>:</Operator><Normal Text> Iir;</Normal Text><br/>
0358 <Normal Text>    </Normal Text><Redirection>begin</Redirection><br/>
0359 <Normal Text>        </Normal Text><Control>case</Control><Normal Text> to_integer(</Normal Text><Data Type>unsigned</Data Type><Normal Text>(CTRL_REF(x</Normal Text><Operator>*</Operator><Integer>4</Integer><Operator>+</Operator><Integer>3</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> x</Normal Text><Operator>*</Operator><Integer>4</Integer><Normal Text>))) </Normal Text><Keyword>is</Keyword><br/>
0360 <Normal Text>            </Normal Text><Control>when</Control><Normal Text> </Normal Text><Name>Null_Iir_List</Name><br/>
0361 <Normal Text>            </Normal Text><Operator>|</Operator><Normal Text> </Normal Text><Name>Iir_List_All</Name><Normal Text> </Normal Text><Operator>=></Operator><br/>
0362 <Normal Text>                </Normal Text><Control>return</Control><Normal Text> L;</Normal Text><br/>
0363 <Normal Text>            </Normal Text><Control>when</Control><Normal Text> </Normal Text><Keyword>others</Keyword><Normal Text> </Normal Text><Operator>=></Operator><br/>
0364 <Normal Text>                It </Normal Text><Operator>:=</Operator><Normal Text> List_Iterate (L);</Normal Text><br/>
0365 <Normal Text>                </Normal Text><Control>while</Control><Normal Text> Is_Valid (It) </Normal Text><Control>loop</Control><br/>
0366 <Normal Text>                    El </Normal Text><Operator>:=</Operator><Normal Text> Get_Element (It);</Normal Text><br/>
0367 <Normal Text>                    Append_Element (Res</Normal Text><Operator>,</Operator><Normal Text> Instantiate_Iir (El</Normal Text><Operator>,</Operator><Normal Text> Is_Ref));</Normal Text><br/>
0368 <Normal Text>                </Normal Text><Control>end loop;</Control><br/>
0369 <Normal Text>                </Normal Text><Control>for</Control><Normal Text> I </Normal Text><Keyword>in</Keyword><Normal Text> Flist_First </Normal Text><Operator>..</Operator><Normal Text> Flist_Last (L) </Normal Text><Control>loop</Control><br/>
0370 <Normal Text>                    Set_Nth_Element (Res</Normal Text><Operator>,</Operator><Normal Text> I</Normal Text><Operator>,</Operator><Normal Text> Instantiate_Iir (El</Normal Text><Operator>,</Operator><Normal Text> Is_Ref));</Normal Text><br/>
0371 <Normal Text>                </Normal Text><Control>end loop;</Control><br/>
0372 <Normal Text>                </Normal Text><Control>return</Control><Normal Text> Res;</Normal Text><br/>
0373 <Normal Text>        </Normal Text><Control>end case;</Control><br/>
0374 <Normal Text>    </Normal Text><Redirection>end Instantiate_Iir_List;</Redirection><br/>
0375 <Control>end package body;</Control><br/>
0376 <Normal Text></Normal Text><br/>
0377 <Comment>-- Library bar</Comment><br/>
0378 <Keyword>context</Keyword><Normal Text> foo</Normal Text><Operator>.</Operator><Normal Text>test_context;</Normal Text><br/>
0379 <Normal Text></Normal Text><br/>
0380 <Keyword>context</Keyword><Normal Text> </Normal Text><Name>foo</Name><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0381 <Normal Text>    </Normal Text><Keyword>context</Keyword><Normal Text> foo</Normal Text><Operator>.</Operator><Normal Text>test_context;</Normal Text><br/>
0382 <Keyword>end context foo;</Keyword><br/>
0383 <Normal Text></Normal Text><br/>
0384 <Control>entity</Control><Normal Text> </Normal Text><Name>concat</Name><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0385 <Control>end entity;</Control><br/>
0386 <Normal Text></Normal Text><br/>
0387 <Control>entity</Control><Normal Text> </Normal Text><Name>foo</Name><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0388 <Normal Text>    </Normal Text><Control>port</Control><Normal Text> (</Normal Text><br/>
0389 <Normal Text>        x </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>in</Keyword><Normal Text> my_int );</Normal Text><br/>
0390 <Control>end entity;</Control><br/>
0391 <Normal Text></Normal Text><br/>
0392 <Control>architecture</Control><Normal Text> </Normal Text><Name>t</Name><Normal Text> </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Reference>concat</Reference><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0393 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> int_array </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>array</Keyword><Normal Text> (</Normal Text><Data Type>integer</Data Type><Normal Text> </Normal Text><Keyword>range</Keyword><Normal Text> </Normal Text><Operator><></Operator><Normal Text>) </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text>;</Normal Text><br/>
0394 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> small </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>range</Keyword><Normal Text> </Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>3</Integer><Normal Text>;</Normal Text><br/>
0395 <Normal Text></Normal Text><br/>
0396 <Normal Text>    </Normal Text><Control>component</Control><Normal Text> </Normal Text><Name>or_entity</Name><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0397 <Normal Text>    </Normal Text><Control>port</Control><Normal Text>(</Normal Text><br/>
0398 <Normal Text>        input_1</Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>in</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0399 <Normal Text>        output</Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>out</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><br/>
0400 <Normal Text>        );</Normal Text><br/>
0401 <Normal Text>    </Normal Text><Control>end component;</Control><br/>
0402 <Control>begin</Control><br/>
0403 <Normal Text>    </Normal Text><Process>process</Process><br/>
0404 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> s </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>string</Data Type><Normal Text>(</Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>5</Integer><Normal Text>);</Normal Text><br/>
0405 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> t </Normal Text><Operator>:</Operator><Normal Text> int_array(</Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>2</Integer><Normal Text>);</Normal Text><br/>
0406 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> c </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>bit_vector</Data Type><Normal Text>(</Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>4</Integer><Normal Text>);</Normal Text><br/>
0407 <Normal Text>    </Normal Text><Process>begin</Process><br/>
0408 <Normal Text>        x </Normal Text><Operator>:=</Operator><Normal Text> ( </Normal Text><Integer>1</Integer><Operator>,</Operator><Normal Text> </Normal Text><Integer>2</Integer><Operator>,</Operator><Normal Text> </Normal Text><Integer>3</Integer><Normal Text> );</Normal Text><br/>
0409 <Normal Text>        z </Normal Text><Operator>:=</Operator><Normal Text> x </Normal Text><Operator>&</Operator><Normal Text> y;</Normal Text><br/>
0410 <Normal Text>        w </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Operator>&</Operator><Normal Text> x;</Normal Text><br/>
0411 <Normal Text>        s </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Attribute>'h'</Attribute><Normal Text> </Normal Text><Operator>&</Operator><Normal Text> string</Normal Text><Attribute>'("ello")</Attribute><Normal Text>;</Normal Text><br/>
0412 <Normal Text>        </Normal Text><Keyword>assert</Keyword><Normal Text> </Normal Text><Vector>"10"</Vector><Normal Text> </Normal Text><Operator>=</Operator><Normal Text> (b(</Normal Text><Integer>1</Integer><Normal Text>) </Normal Text><Operator>&</Operator><Normal Text> </Normal Text><Vector>"0"</Vector><Normal Text>);</Normal Text><br/>
0413 <Normal Text>        </Normal Text><Keyword>wait</Keyword><Normal Text>;</Normal Text><br/>
0414 <Normal Text>    </Normal Text><Process>end process;</Process><br/>
0415 <Normal Text></Normal Text><br/>
0416 <Normal Text>    </Normal Text><Redirection>function</Redirection><Normal Text> </Normal Text><Name>CounterVal</Name><Normal Text>(Seconds </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text> </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>) </Normal Text><Control>return</Control><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0417 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> TotalSeconds </Normal Text><Operator>:</Operator><Normal Text> interger;</Normal Text><br/>
0418 <Normal Text>    </Normal Text><Redirection>begin</Redirection><br/>
0419 <Normal Text>        TotalSeconds </Normal Text><Operator>:=</Operator><Normal Text> Seconds </Normal Text><Operator>+</Operator><Normal Text> Minutes </Normal Text><Operator>*</Operator><Normal Text> </Normal Text><Integer>60</Integer><Normal Text>;</Normal Text><br/>
0420 <Normal Text>        </Normal Text><Control>return</Control><Normal Text> TotalSeconds </Normal Text><Operator>*</Operator><Normal Text> ClockFrequencyHz </Normal Text><Operator>-</Operator><Integer>1</Integer><Normal Text>;</Normal Text><br/>
0421 <Normal Text>    </Normal Text><Redirection>end function;</Redirection><br/>
0422 <Normal Text></Normal Text><br/>
0423 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> enum_type </Normal Text><Signal>is</Signal><Normal Text> (a</Normal Text><Operator>,</Operator><Normal Text> b</Normal Text><Operator>,</Operator><Normal Text> c</Normal Text><Operator>,</Operator><Normal Text> </Normal Text><Operator>...,</Operator><Normal Text> z);</Normal Text><br/>
0424 <Normal Text>    </Normal Text><Signal>type</Signal><Normal Text> int_array </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>array</Keyword><Normal Text>(</Normal Text><Integer>3</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>) </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text>;</Normal Text><br/>
0425 <Normal Text></Normal Text><br/>
0426 <Normal Text>    </Normal Text><Keyword>subtype</Keyword><Normal Text> addr_int </Normal Text><Keyword>is</Keyword><Normal Text> </Normal Text><Data Type>integer</Data Type><Normal Text> </Normal Text><Keyword>range</Keyword><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>65535</Integer><Normal Text>;</Normal Text><br/>
0427 <Normal Text>    </Normal Text><Keyword>subtype</Keyword><Normal Text> sub_enum_type </Normal Text><Keyword>is</Keyword><Normal Text> enum_type </Normal Text><Keyword>range</Keyword><Normal Text> a </Normal Text><Range>to</Range><Normal Text> m;</Normal Text><br/>
0428 <Normal Text></Normal Text><br/>
0429 <Normal Text>    </Normal Text><Name>inst1</Name><Operator>:</Operator><Normal Text> </Normal Text><Keyword>entity</Keyword><Normal Text> </Normal Text><Reference>work.counter1</Reference><Normal Text>(rtl)</Normal Text><br/>
0430 <Normal Text>        </Normal Text><Keyword>generic map </Keyword><Normal Text>(BITS1 </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Integer>8</Integer><Normal Text>)</Normal Text><br/>
0431 <Normal Text>        </Normal Text><Keyword>port map </Keyword><Normal Text>(</Normal Text><br/>
0432 <Normal Text>            clk1 </Normal Text><Operator>=></Operator><Normal Text> Clock</Normal Text><Operator>,</Operator><br/>
0433 <Normal Text>            DATA_OUT   </Normal Text><Operator>=></Operator><Normal Text> pwm_data_o(</Normal Text><Integer>3</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>5</Integer><Normal Text>)</Normal Text><Operator>,</Operator><br/>
0434 <Normal Text>            COMP_IN(</Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>)  </Normal Text><Operator>=></Operator><Normal Text> compensate_i</Normal Text><Operator>,</Operator><br/>
0435 <Normal Text>            WRITE_IN   </Normal Text><Operator>=></Operator><Normal Text> (</Normal Text><Range>others</Range><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>)</Normal Text><br/>
0436 <Normal Text>        );</Normal Text><br/>
0437 <Normal Text></Normal Text><br/>
0438 <Normal Text>    </Normal Text><Name>inst2</Name><Operator>:</Operator><Normal Text> </Normal Text><Keyword>component</Keyword><Normal Text> </Normal Text><Reference>counter2</Reference><br/>
0439 <Normal Text>        </Normal Text><Keyword>generic map </Keyword><Normal Text>(BITS1 </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Integer>8</Integer><Normal Text>)</Normal Text><br/>
0440 <Normal Text>        </Normal Text><Keyword>port map </Keyword><Normal Text>(clk1 </Normal Text><Operator>=></Operator><Normal Text> Clock);</Normal Text><br/>
0441 <Normal Text></Normal Text><br/>
0442 <Normal Text>    </Normal Text><Name>inst3</Name><Operator>:</Operator><Normal Text> </Normal Text><Keyword>configuration</Keyword><Normal Text> </Normal Text><Reference>counter3</Reference><br/>
0443 <Normal Text>        </Normal Text><Keyword>generic map </Keyword><Normal Text>(BITS1 </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Integer>8</Integer><Normal Text>)</Normal Text><br/>
0444 <Normal Text>        </Normal Text><Keyword>port map </Keyword><Normal Text>(clk1 </Normal Text><Operator>=></Operator><Normal Text> Clock);</Normal Text><br/>
0445 <Normal Text></Normal Text><br/>
0446 <Normal Text>    </Normal Text><Name>THE_PWM_GEN</Name><Normal Text> </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Reference>pwm_generator</Reference><br/>
0447 <Normal Text>        </Normal Text><Keyword>generic map</Keyword><Normal Text>(</Normal Text><br/>
0448 <Normal Text>            dsfds </Normal Text><Operator>=></Operator><Normal Text> ds</Normal Text><br/>
0449 <Normal Text>        )</Normal Text><br/>
0450 <Normal Text>        </Normal Text><Keyword>port map</Keyword><Normal Text>(</Normal Text><br/>
0451 <Normal Text>            CLK        </Normal Text><Operator>=></Operator><Normal Text> clk_i</Normal Text><Operator>,</Operator><br/>
0452 <Normal Text>            DATA_IN    </Normal Text><Operator>=></Operator><Normal Text> pwm_data_i</Normal Text><Operator>,</Operator><br/>
0453 <Normal Text>            DATA_OUT   </Normal Text><Operator>=></Operator><Normal Text> pwm_data_o(</Normal Text><Integer>3</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>5</Integer><Normal Text>)</Normal Text><Operator>,</Operator><br/>
0454 <Normal Text>            COMP_IN(</Normal Text><Integer>1</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>)  </Normal Text><Operator>=></Operator><Normal Text> compensate_i</Normal Text><Operator>,</Operator><br/>
0455 <Normal Text>            WRITE_IN   </Normal Text><Operator>=></Operator><Normal Text> (</Normal Text><Range>others</Range><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>)</Normal Text><br/>
0456 <Normal Text>        );</Normal Text><br/>
0457 <Normal Text></Normal Text><br/>
0458 <Control>end architecture;</Control><br/>
0459 <Normal Text></Normal Text><br/>
0460 <Control>architecture</Control><Normal Text> </Normal Text><Name>a2</Name><Normal Text> </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Reference>e</Reference><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0461 <Normal Text>    </Normal Text><Redirection>function</Redirection><Normal Text> </Normal Text><Vector>">"</Vector><Normal Text>(a</Normal Text><Operator>,</Operator><Normal Text> b</Normal Text><Operator>:</Operator><Normal Text> my_int) </Normal Text><Control>return</Control><Normal Text> </Normal Text><Data Type>boolean</Data Type><Normal Text>;</Normal Text><br/>
0462 <Control>begin</Control><br/>
0463 <Normal Text>    </Normal Text><Process>process</Process><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0464 <Normal Text>        </Normal Text><Signal>variable</Signal><Normal Text> x</Normal Text><Operator>,</Operator><Normal Text> y </Normal Text><Operator>:</Operator><Normal Text> my_int;</Normal Text><br/>
0465 <Normal Text>    </Normal Text><Process>begin</Process><br/>
0466 <Normal Text>        </Normal Text><Keyword>assert</Keyword><Normal Text> x </Normal Text><Operator>></Operator><Normal Text> y;</Normal Text><br/>
0467 <Normal Text>        </Normal Text><Keyword>assert</Keyword><Normal Text> x </Normal Text><Operator><</Operator><Normal Text> y;                   </Normal Text><Comment>-- Error</Comment><br/>
0468 <Normal Text>    </Normal Text><Process>end process;</Process><br/>
0469 <Normal Text></Normal Text><br/>
0470 <Normal Text>    </Normal Text><Name>billowitch_tc586</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>block</Control><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0471 <Normal Text>        </Normal Text><Signal>type</Signal><Normal Text> real_cons_vector  </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>array</Keyword><Normal Text> (</Normal Text><Integer>15</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>) </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Data Type>real</Data Type><Normal Text>;</Normal Text><br/>
0472 <Normal Text>        </Normal Text><Signal>type</Signal><Normal Text> real_cons_vector_file </Normal Text><Signal>is</Signal><Normal Text> </Normal Text><Keyword>file</Keyword><Normal Text> </Normal Text><Keyword>of</Keyword><Normal Text> real_cons_vector;</Normal Text><br/>
0473 <Normal Text>        </Normal Text><Signal>constant</Signal><Normal Text> C19 </Normal Text><Operator>:</Operator><Normal Text> real_cons_vector </Normal Text><Operator>:=</Operator><Normal Text> (</Normal Text><Range>others</Range><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Integer>3</Integer><Operator>.</Operator><Integer>0</Integer><Normal Text>);</Normal Text><br/>
0474 <Normal Text>    </Normal Text><Keyword>begin</Keyword><br/>
0475 <Normal Text>    </Normal Text><Control>end block;</Control><br/>
0476 <Control>end architecture;</Control><br/>
0477 <Normal Text></Normal Text><br/>
0478 <Control>architecture</Control><Normal Text> </Normal Text><Name>arch</Name><Normal Text> </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Reference>ent</Reference><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0479 <Control>begin</Control><br/>
0480 <Normal Text>  </Normal Text><Name>LL</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>if</Control><Normal Text> test</Normal Text><Operator>=</Operator><Integer>10</Integer><Normal Text> </Normal Text><Control>generate</Control><br/>
0481 <Normal Text>   </Normal Text><Control>begin</Control><br/>
0482 <Normal Text>   </Normal Text><Control>end;</Control><br/>
0483 <Normal Text>  </Normal Text><Control>elsif</Control><Normal Text> test</Normal Text><Operator>=</Operator><Integer>5</Integer><Normal Text> </Normal Text><Control>generate</Control><br/>
0484 <Normal Text>   </Normal Text><Control>begin</Control><br/>
0485 <Normal Text>   </Normal Text><Control>end;</Control><br/>
0486 <Normal Text>  </Normal Text><Control>end generate;</Control><br/>
0487 <Normal Text></Normal Text><br/>
0488 <Normal Text>  </Normal Text><Name>LL</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>if</Control><Normal Text> </Normal Text><Name>l1</Name><Operator>:</Operator><Normal Text> SPEED </Normal Text><Operator>=</Operator><Normal Text> </Normal Text><Vector>"fast"</Vector><Normal Text> </Normal Text><Control>generate</Control><br/>
0489 <Normal Text>  </Normal Text><Control>elsif</Control><Normal Text> test</Normal Text><Operator>=</Operator><Integer>5</Integer><Normal Text> </Normal Text><Control>generate</Control><br/>
0490 <Normal Text>  </Normal Text><Control>end generate;</Control><br/>
0491 <Control>end architecture arch;</Control><br/>
0492 <Normal Text></Normal Text><br/>
0493 <Normal Text></Normal Text><br/>
0494 <Control>architecture</Control><Normal Text> </Normal Text><Name>thing_arch</Name><Normal Text> </Normal Text><Keyword>of</Keyword><Normal Text> </Normal Text><Reference>designthing</Reference><Normal Text> </Normal Text><Keyword>is</Keyword><br/>
0495 <Normal Text></Normal Text><br/>
0496 <Control>component</Control><Normal Text> </Normal Text><Name>pwm_generator</Name><br/>
0497 <Normal Text>  </Normal Text><Control>port</Control><Normal Text>(</Normal Text><br/>
0498 <Normal Text>    CLK        </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>in</Keyword><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0499 <Normal Text>    DATA_IN    </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>in</Keyword><Normal Text>  </Normal Text><Data Type>std_logic_vector</Data Type><Normal Text>(</Normal Text><Integer>15</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>);</Normal Text><br/>
0500 <Normal Text>    );</Normal Text><br/>
0501 <Control>end component pwm_generator;</Control><br/>
0502 <Normal Text></Normal Text><br/>
0503 <Signal>attribute</Signal><Normal Text> NOM_FREQ </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>string</Data Type><Normal Text>;</Normal Text><br/>
0504 <Signal>attribute</Signal><Normal Text> NOM_FREQ </Normal Text><Keyword>of</Keyword><Normal Text> clk_source </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Keyword>label</Keyword><Normal Text> </Normal Text><Keyword>is</Keyword><Normal Text> </Normal Text><Vector>"133.00"</Vector><Normal Text>;</Normal Text><br/>
0505 <Signal>signal</Signal><Normal Text> clk_i  </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0506 <Normal Text></Normal Text><br/>
0507 <Control>begin</Control><br/>
0508 <Normal Text></Normal Text><br/>
0509 <Name>gen_no_comp</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>if</Control><Normal Text> TEMP </Normal Text><Operator>=</Operator><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Control>generate</Control><br/>
0510 <Normal Text>  compensate_i </Normal Text><Operator><=</Operator><Normal Text> (</Normal Text><Range>others</Range><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>);</Normal Text><br/>
0511 <Control>end generate;</Control><br/>
0512 <Normal Text></Normal Text><br/>
0513 <Name>gen_no_comp</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>for</Control><Normal Text> i </Normal Text><Keyword>in</Keyword><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> TEMP </Normal Text><Control>generate</Control><br/>
0514 <Normal Text>  compensate_i </Normal Text><Operator><=</Operator><Normal Text> (</Normal Text><Range>others</Range><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>) </Normal Text><Keyword>after</Keyword><Normal Text> </Normal Text><Integer>10</Integer><Normal Text> </Normal Text><Data Type>ns</Data Type><Normal Text>;</Normal Text><br/>
0515 <Normal Text>  compensate_i </Normal Text><Operator><=</Operator><Normal Text> (</Normal Text><Range>others</Range><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>) ;</Normal Text><br/>
0516 <Control>end generate;</Control><br/>
0517 <Normal Text></Normal Text><br/>
0518 <Comment>---------------------------------------------------------------------------</Comment><br/>
0519 <Comment>-- LED blinking when activity on inputs</Comment><br/>
0520 <Comment>---------------------------------------------------------------------------</Comment><br/>
0521 <Name>PROC_TIMER</Name><Normal Text> </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Process>process</Process><Normal Text> </Normal Text><Process>begin</Process><br/>
0522 <Normal Text>  </Normal Text><Keyword>wait</Keyword><Normal Text> </Normal Text><Keyword>until</Keyword><Normal Text> </Normal Text><Keyword>rising_edge</Keyword><Normal Text>(clk_i);</Normal Text><br/>
0523 <Normal Text>  timer </Normal Text><Operator><=</Operator><Normal Text> timer </Normal Text><Operator>+</Operator><Normal Text> </Normal Text><Integer>1</Integer><Normal Text>;</Normal Text><br/>
0524 <Normal Text>  </Normal Text><Keyword>wait</Keyword><Normal Text> </Normal Text><Keyword>for</Keyword><Normal Text> </Normal Text><Integer>10</Integer><Normal Text> </Normal Text><Data Type>ns</Data Type><Normal Text>;</Normal Text><br/>
0525 <Normal Text>  leds </Normal Text><Operator><=</Operator><Normal Text> (last_inp </Normal Text><Keyword>xor</Keyword><Normal Text> inp_status(</Normal Text><Integer>3</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>)) </Normal Text><Keyword>or</Keyword><Normal Text> leds </Normal Text><Keyword>or</Keyword><Normal Text> last_leds;</Normal Text><br/>
0526 <Normal Text>  </Normal Text><Control>if</Control><Normal Text> timer </Normal Text><Operator>=</Operator><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Control>then</Control><br/>
0527 <Normal Text>    leds </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Keyword>not</Keyword><Normal Text> inp_status(</Normal Text><Integer>3</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>);</Normal Text><br/>
0528 <Normal Text>    last_leds </Normal Text><Operator><=</Operator><Normal Text> x</Normal Text><Vector>"0"</Vector><Normal Text>;</Normal Text><br/>
0529 <Normal Text>  </Normal Text><Control>elsif</Control><Normal Text> gf </Normal Text><Control>then</Control><br/>
0530 <Normal Text>    fdsa </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text>;</Normal Text><br/>
0531 <Normal Text>  </Normal Text><Control>end if;</Control><br/>
0532 <Normal Text></Normal Text><br/>
0533 <Normal Text>  </Normal Text><Name>xz</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>for</Control><Normal Text> x </Normal Text><Keyword>in</Keyword><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Range>to</Range><Normal Text> </Normal Text><Integer>7</Integer><Normal Text> </Normal Text><Control>loop</Control><br/>
0534 <Normal Text>    dsadf;</Normal Text><br/>
0535 <Normal Text>  </Normal Text><Control>end loop;</Control><br/>
0536 <Normal Text></Normal Text><br/>
0537 <Normal Text>  </Normal Text><Control>case</Control><Normal Text> c </Normal Text><Keyword>is</Keyword><br/>
0538 <Normal Text>    </Normal Text><Control>when</Control><Normal Text> </Normal Text><Name>XXX</Name><Normal Text> </Normal Text><Operator>=></Operator><br/>
0539 <Normal Text>      c </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Integer>1</Integer><Normal Text>;</Normal Text><br/>
0540 <Normal Text>      d </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Integer>21321</Integer><Normal Text>;</Normal Text><br/>
0541 <Normal Text>    </Normal Text><Control>when</Control><Normal Text> </Normal Text><Name>YYYY</Name><Normal Text> </Normal Text><Operator>=></Operator><br/>
0542 <Normal Text>      c </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Integer>2</Integer><Normal Text>;</Normal Text><br/>
0543 <Normal Text>  </Normal Text><Control>end case;</Control><Normal Text> </Normal Text><br/>
0544 <Process>end process;</Process><br/>
0545 <Normal Text></Normal Text><br/>
0546 <Normal Text></Normal Text><br/>
0547 <Name>generate_with_begin</Name><Operator>:</Operator><Normal Text> </Normal Text><Control>if</Control><Normal Text> TEMP </Normal Text><Operator>=</Operator><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Control>generate</Control><br/>
0548 <Normal Text>  </Normal Text><Signal>signal</Signal><Normal Text> </Normal Text><Operator>:</Operator><Normal Text> test </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0549 <Control>begin</Control><br/>
0550 <Normal Text>  compensate_i </Normal Text><Operator><=</Operator><Normal Text> (</Normal Text><Range>others</Range><Normal Text> </Normal Text><Operator>=></Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>);</Normal Text><br/>
0551 <Normal Text>  </Normal Text><Control>if</Control><Normal Text> timer </Normal Text><Operator>=</Operator><Normal Text> </Normal Text><Integer>0</Integer><Normal Text> </Normal Text><Control>then</Control><br/>
0552 <Normal Text>    leds </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Keyword>not</Keyword><Normal Text> inp_status(</Normal Text><Integer>3</Integer><Normal Text> </Normal Text><Range>downto</Range><Normal Text> </Normal Text><Integer>0</Integer><Normal Text>);</Normal Text><br/>
0553 <Normal Text>    last_leds </Normal Text><Operator><=</Operator><Normal Text> x</Normal Text><Vector>"0"</Vector><Normal Text>;</Normal Text><br/>
0554 <Normal Text>  </Normal Text><Control>elsif</Control><Normal Text> gf </Normal Text><Control>then</Control><br/>
0555 <Normal Text>    fdsa </Normal Text><Operator><=</Operator><Normal Text> </Normal Text><Attribute>'1'</Attribute><Normal Text>;</Normal Text><br/>
0556 <Normal Text>  </Normal Text><Control>end if;</Control><Normal Text>  </Normal Text><br/>
0557 <Control>end generate generate_with_begin;</Control><br/>
0558 <Normal Text></Normal Text><br/>
0559 <Name>PROC_TIMER</Name><Normal Text> </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Process>process</Process><br/>
0560 <Normal Text>  </Normal Text><Signal>variable</Signal><Normal Text> x </Normal Text><Operator>:</Operator><Normal Text> </Normal Text><Data Type>std_logic</Data Type><Normal Text>;</Normal Text><br/>
0561 <Process>begin</Process><br/>
0562 <Normal Text>  x </Normal Text><Operator>:=</Operator><Normal Text> </Normal Text><Attribute>'0'</Attribute><Normal Text>;</Normal Text><br/>
0563 <Process>end process PROC_TIMER;</Process><br/>
0564 <Normal Text></Normal Text><br/>
0565 <Error>end architecture thing_arc;</Error><Normal Text>   </Normal Text><Comment>--this is not correct (wrong name)</Comment><br/>
0566 <Normal Text></Normal Text><br/>
0567 <Integer>1</Integer><Operator>+</Operator><Integer>1</Integer><br/>
0568 <Integer>2</Integer><Data Type>ns</Data Type><br/>
0569 <Normal Text></Normal Text><br/>
0570 <Integer>1_2_3</Integer><br/>
0571 <Integer>12_3</Integer><br/>
0572 <Integer>1</Integer><Operator>.</Operator><Integer>2</Integer><br/>
0573 <Integer>1</Integer><Operator>.</Operator><Integer>2_3</Integer><br/>
0574 <Integer>1_3</Integer><Operator>.</Operator><Integer>2_3</Integer><br/>
0575 <Integer>12_3</Integer><Exponent>e+1</Exponent><br/>
0576 <Integer>12_3</Integer><Exponent>e-1</Exponent><br/>
0577 <Integer>12_3</Integer><Exponent>e1_1</Exponent><br/>
0578 <Integer>12_3</Integer><Operator>.</Operator><Integer>4</Integer><Exponent>e1_1</Exponent><br/>
0579 <Integer>12_3</Integer><Exponent>e1</Exponent><Normal Text>_</Normal Text><br/>
0580 <Integer>12_3</Integer><Error>e</Error><br/>
0581 <Normal Text></Normal Text><br/>
0582 <Integer>2</Integer><Operator>#</Operator><Based Integer>1_2_3</Based Integer><Operator>#</Operator><Exponent>E+8</Exponent><br/>
0583 <Integer>2</Integer><Operator>#</Operator><Based Integer>1_2</Based Integer><Operator>.</Operator><Based Integer>3</Based Integer><Operator>#</Operator><Exponent>E+8</Exponent><br/>
0584 <Integer>2</Integer><Operator>#</Operator><Based Integer>1_f2</Based Integer><Operator>.</Operator><Based Integer>3</Based Integer><Operator>#</Operator><br/>
0585 <Normal Text></Normal Text><br/>
0586 <Integer>3</Integer><Operator>.</Operator><Integer>14159_26536</Integer><Normal Text> </Normal Text><Comment>-- A literal of type universal_real.</Comment><br/>
0587 <Integer>5280</Integer><Normal Text>          </Normal Text><Comment>-- A literal of type universal_integer.</Comment><br/>
0588 <Integer>10</Integer><Operator>.</Operator><Integer>7</Integer><Normal Text> </Normal Text><Data Type>ns</Data Type><Normal Text>       </Normal Text><Comment>-- A literal of a physical type.</Comment><br/>
0589 <Normal Text>O</Normal Text><Vector>"4777"</Vector><Normal Text>       </Normal Text><Comment>-- A bit string literal.</Comment><br/>
0590 <Vector>"54LS281"</Vector><Normal Text>     </Normal Text><Comment>-- A string literal.</Comment><br/>
0591 <Vector>""</Vector><Normal Text>            </Normal Text><Comment>-- A string literal representing a null array.</Comment><br/>
0592 <Normal Text>B</Normal Text><Vector>"1111_1111_1111"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to the string literal "111111111111".</Comment><br/>
0593 <Normal Text>X</Normal Text><Vector>"FFF"</Vector><Normal Text>            </Normal Text><Comment>-- Equivalent to B"1111_1111_1111".</Comment><br/>
0594 <Normal Text>O</Normal Text><Vector>"777"</Vector><Normal Text>            </Normal Text><Comment>-- Equivalent to B"111_111_111".</Comment><br/>
0595 <Normal Text>X</Normal Text><Vector>"777"</Vector><Normal Text>            </Normal Text><Comment>-- Equivalent to B"0111_0111_0111".</Comment><br/>
0596 <Normal Text>B</Normal Text><Vector>"XXXX_01LH"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to the string literal "XXXX01LH"</Comment><br/>
0597 <Normal Text>UO</Normal Text><Vector>"27"</Vector><Normal Text>       </Normal Text><Comment>-- Equivalent to B"010_111"</Comment><br/>
0598 <Normal Text>UO</Normal Text><Vector>"2C"</Vector><Normal Text>       </Normal Text><Comment>-- Equivalent to B"011_CCC"</Comment><br/>
0599 <Normal Text>SX</Normal Text><Vector>"3W"</Vector><Normal Text>       </Normal Text><Comment>-- Equivalent to B"0011_WWWW"</Comment><br/>
0600 <Normal Text>D</Normal Text><Vector>"35"</Vector><Normal Text>        </Normal Text><Comment>-- Equivalent to B"100011"</Comment><br/>
0601 <Integer>12</Integer><Normal Text>UB</Normal Text><Vector>"X1"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to B"0000_0000_00X1"</Comment><br/>
0602 <Integer>12</Integer><Normal Text>SB</Normal Text><Vector>"X1"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to B"XXXX_XXXX_XXX1"</Comment><br/>
0603 <Integer>12</Integer><Normal Text>UX</Normal Text><Vector>"F-"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to B"0000_1111_----"</Comment><br/>
0604 <Integer>12</Integer><Normal Text>SX</Normal Text><Vector>"F-"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to B"1111_1111_----"</Comment><br/>
0605 <Integer>12</Integer><Normal Text>D</Normal Text><Vector>"13"</Vector><Normal Text>  </Normal Text><Comment>-- Equivalent to B"0000_0000_1101"</Comment><br/>
0606 <Integer>12</Integer><Normal Text>UX</Normal Text><Vector>"000WWW"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to B"WWWW_WWWW_WWWW"</Comment><br/>
0607 <Integer>12</Integer><Normal Text>SX</Normal Text><Vector>"FFFC00"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to B"1100_0000_0000"</Comment><br/>
0608 <Integer>12</Integer><Normal Text>SX</Normal Text><Vector>"XXXX00"</Vector><Normal Text> </Normal Text><Comment>-- Equivalent to B"XXXX_0000_0000"</Comment><br/>
0609 <Integer>8</Integer><Normal Text>D</Normal Text><Vector>"511"</Vector><Normal Text>  </Normal Text><Comment>-- Error</Comment><br/>
0610 <Integer>8</Integer><Normal Text>UO</Normal Text><Vector>"477"</Vector><Normal Text> </Normal Text><Comment>-- Error</Comment><br/>
0611 <Integer>8</Integer><Normal Text>SX</Normal Text><Vector>"0FF"</Vector><Normal Text> </Normal Text><Comment>-- Error</Comment><br/>
0612 <Integer>8</Integer><Normal Text>SX</Normal Text><Vector>"FXX"</Vector><Normal Text> </Normal Text><Comment>-- Error</Comment><br/>