File content as of revision 5:4409ff66b434:

/*----------------------------------copyright---------------------------------*/
//      licensed for personal and academic use.
//      commercial use must be approved by the account-holder of
//      gated.clock@gmail.com
/*-----------------------------------module-----------------------------------*/
        module mux8x8
        (
          iDin7,                                // data-input 7.
          iDin6,                                // data-input 6.
          iDin5,                                // data-input 5.
          iDin4,                                // data-input 4.
          iDin3,                                // data-input 3.
          iDin2,                                // data-input 2.
          iDin1,                                // data-input 1.
          iDin0,                                // data-input 0.
          iSel,                                 // multiplexor select.
          oDout                                 // data-out.
        );
/*--------------------------------description-----------------------------------
        an 8-bit-wide, 8-selection multiplexor.
-------------------------------------notes--------------------------------------
------------------------------------defines-----------------------------------*/
/*-----------------------------------ports------------------------------------*/
        input   [ 7:0]  iDin7;                  // data-input 7.
        input   [ 7:0]  iDin6;                  // data-input 6.
        input   [ 7:0]  iDin5;                  // data-input 5.
        input   [ 7:0]  iDin4;                  // data-input 4.
        input   [ 7:0]  iDin3;                  // data-input 3.
        input   [ 7:0]  iDin2;                  // data-input 2.
        input   [ 7:0]  iDin1;                  // data-input 1.
        input   [ 7:0]  iDin0;                  // data-input 0.
        input   [ 2:0]  iSel;                   // multiplexor select.
        output  [ 7:0]  oDout;                  // data-out.
/*-----------------------------------wires------------------------------------*/
        wire    [ 7:0]  iDin7;                  // data-input 7.
        wire    [ 7:0]  iDin6;                  // data-input 6.
        wire    [ 7:0]  iDin5;                  // data-input 5.
        wire    [ 7:0]  iDin4;                  // data-input 4.
        wire    [ 7:0]  iDin3;                  // data-input 3.
        wire    [ 7:0]  iDin2;                  // data-input 2.
        wire    [ 7:0]  iDin1;                  // data-input 1.
        wire    [ 7:0]  iDin0;                  // data-input 0.
        wire    [ 2:0]  iSel;                   // multiplexor select.
        wire    [ 7:0]  oDout;                  // data-out.
/*---------------------------------registers----------------------------------*/
        reg     [ 7:0]  rDout;                  // output register.
/*---------------------------------variables----------------------------------*/
/*---------------------------------parameters---------------------------------*/
/*-----------------------------------clocks-----------------------------------*/
/*---------------------------------instances----------------------------------*/
/*-----------------------------------logic------------------------------------*/
        always @ (iDin7 or iDin6 or iDin5 or iDin4 or
                  iDin3 or iDin2 or iDin1 or iDin0 or iSel)
        case (iSel)
        7 : rDout = iDin7;
        6 : rDout = iDin6;
        5 : rDout = iDin5;
        4 : rDout = iDin4;
        3 : rDout = iDin3;
        2 : rDout = iDin2;
        1 : rDout = iDin1;
        0 : rDout = iDin0;
        endcase

        assign oDout = rDout;                   // propagate output.
/*-------------------------------*/endmodule/*--------------------------------*/