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eightycc |
//////////////////////////////////////////////////////////////////////////////////
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// IBM 650 Reconstruction in Verilog (i650)
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//
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// This file is part of the IBM 650 Reconstruction in Verilog (i650) project
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// http:////www.opencores.org/project,i650
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//
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// Description: Global definitions.
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//
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// Additional Comments:
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//
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// Copyright (c) 2015 Robert Abeles
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//
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// This source file is free software; you can redistribute it
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// and/or modify it under the terms of the GNU Lesser General
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// Public License as published by the Free Software Foundation;
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// either version 2.1 of the License, or (at your option) any
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// later version.
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//
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// This source is distributed in the hope that it will be
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// useful, but WITHOUT ANY WARRANTY; without even the implied
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// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the GNU Lesser General Public License for more
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// details.
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//
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// You should have received a copy of the GNU Lesser General
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// Public License along with this source; if not, download it
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// from http://www.opencores.org/lgpl.shtml
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//////////////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------------
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// Bi-quinary binary codes
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//-----------------------------------------------------------------------------
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`define biq_blank 7'b00_00000
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`define biq_0 7'b01_00001
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`define biq_1 7'b01_00010
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`define biq_2 7'b01_00100
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`define biq_3 7'b01_01000
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`define biq_4 7'b01_10000
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`define biq_5 7'b10_00001
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`define biq_6 7'b10_00010
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`define biq_7 7'b10_00100
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`define biq_8 7'b10_01000
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`define biq_9 7'b10_10000
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`define biq_plus 7'b10_10000
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`define biq_minus 7'b10_01000
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//-----------------------------------------------------------------------------
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// Bi-quinary bit numbers
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//-----------------------------------------------------------------------------
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`define biq_b5 0
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`define biq_b0 1
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`define biq_q4 2
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`define biq_q3 3
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`define biq_q2 4
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`define biq_q1 5
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`define biq_q0 6
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//-----------------------------------------------------------------------------
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// 2 of 5 drum recording codes
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//-----------------------------------------------------------------------------
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`define drum2of5_blank 5'b00000
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`define drum2of5_0 5'b01100
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`define drum2of5_1 5'b11000
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`define drum2of5_2 5'b10100
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`define drum2of5_3 5'b10010
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`define drum2of5_4 5'b01010
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`define drum2of5_5 5'b00110
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`define drum2of5_6 5'b10001
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`define drum2of5_7 5'b01001
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`define drum2of5_8 5'b00101
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`define drum2of5_9 5'b00011
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