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[/] [aemb/] [tags/] [AEMB_7_05/] [rtl/] [verilog/] [aeMB_core.v] - Blame information for rev 37

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/*
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 * $Id: aeMB_core.v,v 1.6 2007-05-17 09:08:21 sybreon Exp $
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 *
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 * AEMB 32-bit Microblaze Compatible Core
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 * Copyright (C) 2004-2007 Shawn Tan Ser Ngiap <shawn.tan@aeste.net>
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public License
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 * as published by the Free Software Foundation; either version 2.1 of
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 * the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful, but
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 * WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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 * USA
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 *
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 * DESCRIPTION
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 * Microblaze compatible, WISHBONE compliant hardware core. This core is
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 * capable of executing software compile for EDK 2.1 using GCC. It has the
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 * capability of handling interrupts as well as exceptions.
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 *
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 * HISTORY
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 * $Log: not supported by cvs2svn $
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 * Revision 1.5  2007/04/27 00:23:55  sybreon
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 * Added code documentation.
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 * Improved size & speed of rtl/verilog/aeMB_aslu.v
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 *
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 * Revision 1.4  2007/04/25 22:15:04  sybreon
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 * Added support for 8-bit and 16-bit data types.
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 *
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 * Revision 1.3  2007/04/11 04:30:43  sybreon
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 * Added pipeline stalling from incomplete bus cycles.
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 * Separated sync and async portions of code.
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 *
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 * Revision 1.2  2007/04/04 06:13:23  sybreon
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 * Removed unused signals
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 *
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 * Revision 1.1  2007/03/09 17:52:17  sybreon
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 * initial import
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 *
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 */
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module aeMB_core (/*AUTOARG*/
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   // Outputs
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   iwb_stb_o, iwb_adr_o, dwb_we_o, dwb_stb_o, dwb_sel_o, dwb_dat_o,
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   dwb_adr_o,
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   // Inputs
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   sys_rst_i, sys_int_i, sys_exc_i, sys_clk_i, iwb_dat_i, iwb_ack_i,
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   dwb_dat_i, dwb_ack_i
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   );
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   // Instruction WB address space
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   parameter ISIZ = 32;
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   // Data WB address space
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   parameter DSIZ = 32;
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   /*AUTOOUTPUT*/
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   // Beginning of automatic outputs (from unused autoinst outputs)
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   output [DSIZ-1:0]     dwb_adr_o;              // From aslu of aeMB_aslu.v
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   output [31:0] dwb_dat_o;              // From regfile of aeMB_regfile.v
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   output [3:0]          dwb_sel_o;              // From aslu of aeMB_aslu.v
66 3 sybreon
   output               dwb_stb_o;              // From decode of aeMB_decode.v
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   output               dwb_we_o;               // From decode of aeMB_decode.v
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   output [ISIZ-1:0]     iwb_adr_o;              // From fetch of aeMB_fetch.v
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   output               iwb_stb_o;              // From fetch of aeMB_fetch.v
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   // End of automatics
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   /*AUTOINPUT*/
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   // Beginning of automatic inputs (from unused autoinst inputs)
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   input                dwb_ack_i;              // To control of aeMB_control.v
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   input [31:0]          dwb_dat_i;              // To regfile of aeMB_regfile.v
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   input                iwb_ack_i;              // To control of aeMB_control.v
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   input [31:0]          iwb_dat_i;              // To fetch of aeMB_fetch.v, ...
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   input                sys_clk_i;              // To control of aeMB_control.v
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   input                sys_exc_i;              // To control of aeMB_control.v
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   input                sys_int_i;              // To control of aeMB_control.v
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   input                sys_rst_i;              // To control of aeMB_control.v
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   // End of automatics
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   /*AUTOWIRE*/
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   // Beginning of automatic wires (for undeclared instantiated-module outputs)
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   wire                 drun;                   // From control of aeMB_control.v
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   wire                 frun;                   // From control of aeMB_control.v
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   wire                 nclk;                   // From control of aeMB_control.v
87 36 sybreon
   wire                 prst;                   // From control of aeMB_control.v
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   wire                 prun;                   // From control of aeMB_control.v
89 3 sybreon
   wire                 rBRA;                   // From decode of aeMB_decode.v
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   wire                 rDLY;                   // From decode of aeMB_decode.v
91 22 sybreon
   wire [3:0]            rDWBSEL;                // From aslu of aeMB_aslu.v
92 3 sybreon
   wire                 rDWBSTB;                // From decode of aeMB_decode.v
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   wire                 rDWBWE;                 // From decode of aeMB_decode.v
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   wire [1:0]            rFSM;                   // From control of aeMB_control.v
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   wire [15:0]           rIMM;                   // From decode of aeMB_decode.v
96 25 sybreon
   wire                 rIWBSTB;                // From fetch of aeMB_fetch.v
97 3 sybreon
   wire                 rLNK;                   // From decode of aeMB_decode.v
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   wire [1:0]            rMXALU;                 // From decode of aeMB_decode.v
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   wire [1:0]            rMXLDST;                // From decode of aeMB_decode.v
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   wire [1:0]            rMXSRC;                 // From decode of aeMB_decode.v
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   wire [1:0]            rMXTGT;                 // From decode of aeMB_decode.v
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   wire [5:0]            rOPC;                   // From decode of aeMB_decode.v
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   wire [31:0]           rPC;                    // From fetch of aeMB_fetch.v
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   wire [4:0]            rRA;                    // From decode of aeMB_decode.v
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   wire [4:0]            rRB;                    // From decode of aeMB_decode.v
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   wire [4:0]            rRD;                    // From decode of aeMB_decode.v
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   wire [31:0]           rREGA;                  // From regfile of aeMB_regfile.v
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   wire [31:0]           rREGB;                  // From regfile of aeMB_regfile.v
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   wire [31:0]           rRESULT;                // From aslu of aeMB_aslu.v
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   wire                 rRWE;                   // From decode of aeMB_decode.v
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   wire [31:0]           rSIMM;                  // From decode of aeMB_decode.v
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   wire [31:0]           sDWBDAT;                // From regfile of aeMB_regfile.v
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   // End of automatics
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   // INSTANTIATIONS /////////////////////////////////////////////////////////////////
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   aeMB_regfile #(DSIZ)
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     regfile (/*AUTOINST*/
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              // Outputs
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              .dwb_dat_o                (dwb_dat_o[31:0]),
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              .rREGA                    (rREGA[31:0]),
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              .rREGB                    (rREGB[31:0]),
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              .sDWBDAT                  (sDWBDAT[31:0]),
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              // Inputs
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              .dwb_dat_i                (dwb_dat_i[31:0]),
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              .rDWBSTB                  (rDWBSTB),
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              .rDWBWE                   (rDWBWE),
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              .rRA                      (rRA[4:0]),
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              .rRB                      (rRB[4:0]),
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              .rRD                      (rRD[4:0]),
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              .rRESULT                  (rRESULT[31:0]),
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              .rFSM                     (rFSM[1:0]),
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              .rPC                      (rPC[31:0]),
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              .rOPC                     (rOPC[5:0]),
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              .rDWBSEL                  (rDWBSEL[3:0]),
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              .rLNK                     (rLNK),
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              .rRWE                     (rRWE),
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              .nclk                     (nclk),
139 36 sybreon
              .prst                     (prst),
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              .drun                     (drun),
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              .prun                     (prun));
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   aeMB_fetch #(ISIZ)
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     fetch (/*AUTOINST*/
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            // Outputs
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            .iwb_adr_o                  (iwb_adr_o[ISIZ-1:0]),
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            .iwb_stb_o                  (iwb_stb_o),
148 3 sybreon
            .rPC                        (rPC[31:0]),
149 25 sybreon
            .rIWBSTB                    (rIWBSTB),
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            // Inputs
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            .iwb_dat_i                  (iwb_dat_i[31:0]),
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            .nclk                       (nclk),
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            .prst                       (prst),
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            .prun                       (prun),
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            .rFSM                       (rFSM[1:0]),
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            .rBRA                       (rBRA),
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            .rRESULT                    (rRESULT[31:0]));
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   aeMB_control
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     control (/*AUTOINST*/
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              // Outputs
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              .rFSM                     (rFSM[1:0]),
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              .nclk                     (nclk),
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              .prst                     (prst),
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              .prun                     (prun),
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              .frun                     (frun),
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              .drun                     (drun),
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              // Inputs
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              .sys_rst_i                (sys_rst_i),
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              .sys_clk_i                (sys_clk_i),
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              .sys_int_i                (sys_int_i),
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              .sys_exc_i                (sys_exc_i),
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              .rIWBSTB                  (rIWBSTB),
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              .iwb_ack_i                (iwb_ack_i),
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              .rDWBSTB                  (rDWBSTB),
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              .dwb_ack_i                (dwb_ack_i),
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              .rBRA                     (rBRA),
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              .rDLY                     (rDLY));
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   aeMB_aslu #(DSIZ)
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     aslu (/*AUTOINST*/
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           // Outputs
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           .dwb_adr_o                   (dwb_adr_o[DSIZ-1:0]),
184 22 sybreon
           .dwb_sel_o                   (dwb_sel_o[3:0]),
185 3 sybreon
           .rRESULT                     (rRESULT[31:0]),
186 22 sybreon
           .rDWBSEL                     (rDWBSEL[3:0]),
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           // Inputs
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           .sDWBDAT                     (sDWBDAT[31:0]),
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           .rBRA                        (rBRA),
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           .rDLY                        (rDLY),
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           .rREGA                       (rREGA[31:0]),
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           .rREGB                       (rREGB[31:0]),
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           .rSIMM                       (rSIMM[31:0]),
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           .rMXSRC                      (rMXSRC[1:0]),
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           .rMXTGT                      (rMXTGT[1:0]),
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           .rMXALU                      (rMXALU[1:0]),
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           .rOPC                        (rOPC[5:0]),
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           .rPC                         (rPC[31:0]),
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           .rIMM                        (rIMM[15:0]),
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           .rRD                         (rRD[4:0]),
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           .rRA                         (rRA[4:0]),
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           .rMXLDST                     (rMXLDST[1:0]),
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           .nclk                        (nclk),
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           .prst                        (prst),
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           .drun                        (drun),
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           .prun                        (prun));
207 3 sybreon
 
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   aeMB_decode
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     decode (/*AUTOINST*/
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             // Outputs
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             .rSIMM                     (rSIMM[31:0]),
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             .rMXALU                    (rMXALU[1:0]),
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             .rMXSRC                    (rMXSRC[1:0]),
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             .rMXTGT                    (rMXTGT[1:0]),
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             .rRA                       (rRA[4:0]),
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             .rRB                       (rRB[4:0]),
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             .rRD                       (rRD[4:0]),
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             .rOPC                      (rOPC[5:0]),
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             .rIMM                      (rIMM[15:0]),
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             .rDWBSTB                   (rDWBSTB),
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             .rDWBWE                    (rDWBWE),
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             .rDLY                      (rDLY),
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             .rLNK                      (rLNK),
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             .rBRA                      (rBRA),
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             .rRWE                      (rRWE),
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             .rMXLDST                   (rMXLDST[1:0]),
227 3 sybreon
             .dwb_stb_o                 (dwb_stb_o),
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             .dwb_we_o                  (dwb_we_o),
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             // Inputs
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             .sDWBDAT                   (sDWBDAT[31:0]),
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             .rDWBSEL                   (rDWBSEL[3:0]),
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             .rREGA                     (rREGA[31:0]),
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             .rRESULT                   (rRESULT[31:0]),
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             .iwb_dat_i                 (iwb_dat_i[31:0]),
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             .nclk                      (nclk),
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             .prst                      (prst),
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             .drun                      (drun),
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             .frun                      (frun),
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             .prun                      (prun));
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endmodule // aeMB_core

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