From 7bdf0a5536d1e53a9ca9a53640298a7c26539316 Mon Sep 17 00:00:00 2001 From: Matt Ettus Date: Thu, 10 Sep 2009 23:11:44 -0700 Subject: Remove old mac. Good riddance. --- eth/rtl/verilog/MAC_rx/CRC_chk.v | 128 --------------------------------------- 1 file changed, 128 deletions(-) delete mode 100644 eth/rtl/verilog/MAC_rx/CRC_chk.v (limited to 'eth/rtl/verilog/MAC_rx/CRC_chk.v') diff --git a/eth/rtl/verilog/MAC_rx/CRC_chk.v b/eth/rtl/verilog/MAC_rx/CRC_chk.v deleted file mode 100644 index d6bb22b51..000000000 --- a/eth/rtl/verilog/MAC_rx/CRC_chk.v +++ /dev/null @@ -1,128 +0,0 @@ -////////////////////////////////////////////////////////////////////// -//// //// -//// CRC_chk.v //// -//// //// -//// This file is part of the Ethernet IP core project //// -//// http://www.opencores.org/projects.cgi/web/ethernet_tri_mode///// -//// //// -//// Author(s): //// -//// - Jon Gao (gaojon@yahoo.com) //// -//// //// -//// //// -////////////////////////////////////////////////////////////////////// -//// //// -//// Copyright (C) 2001 Authors //// -//// //// -//// This source file may be used and distributed without //// -//// restriction provided that this copyright statement is not //// -//// removed from the file and that any derivative work contains //// -//// the original copyright notice and the associated disclaimer. //// -//// //// -//// This source file is free software; you can redistribute it //// -//// and/or modify it under the terms of the GNU Lesser General //// -//// Public License as published by the Free Software Foundation; //// -//// either version 2.1 of the License, or (at your option) any //// -//// later version. //// -//// //// -//// This source is distributed in the hope that it will be //// -//// useful, but WITHOUT ANY WARRANTY; without even the implied //// -//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //// -//// PURPOSE. See the GNU Lesser General Public License for more //// -//// details. //// -//// //// -//// You should have received a copy of the GNU Lesser General //// -//// Public License along with this source; if not, download it //// -//// from http://www.opencores.org/lgpl.shtml //// -//// //// -////////////////////////////////////////////////////////////////////// -// -// CVS Revision History -// -// $Log: CRC_chk.v,v $ -// Revision 1.3 2006/01/19 14:07:54 maverickist -// verification is complete. -// -// Revision 1.2 2005/12/16 06:44:16 Administrator -// replaced tab with space. -// passed 9.6k length frame test. -// -// Revision 1.1.1.1 2005/12/13 01:51:45 Administrator -// no message -// - -module CRC_chk( -Reset , -Clk , -CRC_data , -CRC_init , -CRC_en , -//From CPU -CRC_chk_en , -CRC_err -); -input Reset ; -input Clk ; -input[7:0] CRC_data ; -input CRC_init ; -input CRC_en ; - //From CPU -input CRC_chk_en ; -output CRC_err ; -//****************************************************************************** -//internal signals -//****************************************************************************** -reg [31:0] CRC_reg; -//****************************************************************************** -//input data width is 8bit, and the first bit is bit[0] -function[31:0] NextCRC; - input[7:0] D; - input[31:0] C; - reg[31:0] NewCRC; - begin - NewCRC[0]=C[24]^C[30]^D[1]^D[7]; - NewCRC[1]=C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7]; - NewCRC[2]=C[26]^D[5]^C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7]; - NewCRC[3]=C[27]^D[4]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6]; - NewCRC[4]=C[28]^D[3]^C[27]^D[4]^C[26]^D[5]^C[24]^C[30]^D[1]^D[7]; - NewCRC[5]=C[29]^D[2]^C[28]^D[3]^C[27]^D[4]^C[25]^C[31]^D[0]^D[6]^C[24]^C[30]^D[1]^D[7]; - NewCRC[6]=C[30]^D[1]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6]; - NewCRC[7]=C[31]^D[0]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[24]^D[7]; - NewCRC[8]=C[0]^C[28]^D[3]^C[27]^D[4]^C[25]^D[6]^C[24]^D[7]; - NewCRC[9]=C[1]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^D[6]; - NewCRC[10]=C[2]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[24]^D[7]; - NewCRC[11]=C[3]^C[28]^D[3]^C[27]^D[4]^C[25]^D[6]^C[24]^D[7]; - NewCRC[12]=C[4]^C[29]^D[2]^C[28]^D[3]^C[26]^D[5]^C[25]^D[6]^C[24]^C[30]^D[1]^D[7]; - NewCRC[13]=C[5]^C[30]^D[1]^C[29]^D[2]^C[27]^D[4]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6]; - NewCRC[14]=C[6]^C[31]^D[0]^C[30]^D[1]^C[28]^D[3]^C[27]^D[4]^C[26]^D[5]; - NewCRC[15]=C[7]^C[31]^D[0]^C[29]^D[2]^C[28]^D[3]^C[27]^D[4]; - NewCRC[16]=C[8]^C[29]^D[2]^C[28]^D[3]^C[24]^D[7]; - NewCRC[17]=C[9]^C[30]^D[1]^C[29]^D[2]^C[25]^D[6]; - NewCRC[18]=C[10]^C[31]^D[0]^C[30]^D[1]^C[26]^D[5]; - NewCRC[19]=C[11]^C[31]^D[0]^C[27]^D[4]; - NewCRC[20]=C[12]^C[28]^D[3]; - NewCRC[21]=C[13]^C[29]^D[2]; - NewCRC[22]=C[14]^C[24]^D[7]; - NewCRC[23]=C[15]^C[25]^D[6]^C[24]^C[30]^D[1]^D[7]; - NewCRC[24]=C[16]^C[26]^D[5]^C[25]^C[31]^D[0]^D[6]; - NewCRC[25]=C[17]^C[27]^D[4]^C[26]^D[5]; - NewCRC[26]=C[18]^C[28]^D[3]^C[27]^D[4]^C[24]^C[30]^D[1]^D[7]; - NewCRC[27]=C[19]^C[29]^D[2]^C[28]^D[3]^C[25]^C[31]^D[0]^D[6]; - NewCRC[28]=C[20]^C[30]^D[1]^C[29]^D[2]^C[26]^D[5]; - NewCRC[29]=C[21]^C[31]^D[0]^C[30]^D[1]^C[27]^D[4]; - NewCRC[30]=C[22]^C[31]^D[0]^C[28]^D[3]; - NewCRC[31]=C[23]^C[29]^D[2]; - NextCRC=NewCRC; - end - endfunction - -always @ (posedge Clk or posedge Reset) - if (Reset) - CRC_reg <=32'hffffffff; - else if (CRC_init) - CRC_reg <=32'hffffffff; - else if (CRC_en) - CRC_reg <=NextCRC(CRC_data,CRC_reg); - -assign CRC_err = CRC_chk_en&(CRC_reg[31:0] != 32'hc704dd7b); - -endmodule -- cgit v1.2.3