///////////////////////////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// //
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// //
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// file name: opcodes.v //
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// file name: opcodes.v //
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// description: opcode parameters for z80 //
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// description: opcode parameters for z80 //
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// project: wb_z80 //
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// project: wb_z80 //
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// //
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// //
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// Author: B.J. Porcella //
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// Author: B.J. Porcella //
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// e-mail: bporcella@sbcglobal.net //
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// e-mail: bporcella@sbcglobal.net //
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// //
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// //
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// //
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// //
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// //
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// //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// //
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// //
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// Copyright (C) 2000-2002 B.J. Porcella //
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// Copyright (C) 2000-2002 B.J. Porcella //
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// Real Time Solutions //
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// Real Time Solutions //
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// //
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// //
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// //
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// //
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// This source file may be used and distributed without //
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// This source file may be used and distributed without //
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// restriction provided that this copyright statement is not //
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// restriction provided that this copyright statement is not //
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// removed from the file and that any derivative work contains //
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// removed from the file and that any derivative work contains //
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// the original copyright notice and the associated disclaimer. //
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// the original copyright notice and the associated disclaimer. //
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// //
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// //
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// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY //
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// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY //
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED //
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED //
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// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS //
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// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS //
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// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR //
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// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR //
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// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, //
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// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, //
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES //
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES //
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE //
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE //
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// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR //
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// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR //
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// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF //
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// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF //
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT //
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT //
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT //
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT //
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// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE //
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// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE //
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// POSSIBILITY OF SUCH DAMAGE. //
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// POSSIBILITY OF SUCH DAMAGE. //
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// //
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// //
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//-------1---------2---------3--------Comments on file -------------7---------8---------9--------0
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//-------1---------2---------3--------Comments on file -------------7---------8---------9--------0
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// This file is fundamentally a hack of an opcode file found on:
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// This file is fundamentally a hack of an opcode file found on:
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// http://www.z80.info/ (perhaps written by Thomas Scherrer)
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// http://www.z80.info/ (perhaps written by Thomas Scherrer)
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//
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//
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// The purpose of the origiional file was to aid in low level z80 software debug.
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// The purpose of the origiional file was to aid in low level z80 software debug.
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// Here, we are trying to make the parameters we use for instruction decoding
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// Here, we are trying to make the parameters we use for instruction decoding
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// as easy to understand as possible.
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// as easy to understand as possible.
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//
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//
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// The origional file is included as a comment below. (this is a very long file)
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// It is then re-produced with transformations -- so the significance of the parameters should
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// be very clear.
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//
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//
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// Note how assembler syntax is transformed
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// Note how assembler syntax is transformed
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// into verilog symbols.
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// into verilog symbols.
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//
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//
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//
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//
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// I'm going to define all parameters as standard integer length as they will be used
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// I'm going to define all parameters as standard integer length as they will be used
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// in comparisons of various lengths..............
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// in comparisons of various lengths..............
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// generally 8 bits, but there is 3 bit extension that may apply to any parameter...
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// generally 8 bits, but there is 3 bit extension that may apply to any parameter...
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// 0
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// 0
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// 1 CBgrp (shifts and Bit banging)
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// 1 CBgrp (shifts and Bit banging)
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// 2 DDgrp (mostly indexed addressing)
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// 2 DDgrp (mostly indexed addressing)
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// 3 DDCBgrp (indexed bit banging)
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// 3 DDCBgrp (indexed bit banging)
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// 3 EDgrp (a wild mix of stuff )
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// 3 EDgrp (a wild mix of stuff )
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// 4 FDgrp (more indexed stuff )
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// 4 FDgrp (more indexed stuff )
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// 5 FDCBgrp (indexed bit banging)
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// 5 FDCBgrp (indexed bit banging)
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//
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//
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//
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//
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//-------1---------2---------3--------CVS Log -----------------------7---------8---------9--------0
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//-------1---------2---------3--------CVS Log -----------------------7---------8---------9--------0
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//
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//
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// $Id: opcodes.v,v 1.4 2004-05-27 14:23:36 bporcella Exp $
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// $Id: opcodes.v,v 1.5 2007-10-02 20:25:12 bporcella Exp $
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//
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//
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// $Date: 2004-05-27 14:23:36 $
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// $Date: 2007-10-02 20:25:12 $
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// $Revision: 1.4 $
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// $Revision: 1.5 $
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// $Author: bporcella $
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// $Author: bporcella $
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// $Locker: $
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// $Locker: $
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// $State: Exp $
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// $State: Exp $
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//
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//
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// Change History:
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// Change History:
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// $Log: not supported by cvs2svn $
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// $Log: not supported by cvs2svn $
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// Revision 1.4 2004/05/27 14:23:36 bporcella
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// Instruction test (with interrupts) runs!!!
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//
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// Revision 1.3 2004/05/21 02:51:25 bporcella
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// Revision 1.3 2004/05/21 02:51:25 bporcella
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// inst test got to the worked macro
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// inst test got to the worked macro
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//
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//
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// Revision 1.2 2004/05/18 22:31:20 bporcella
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// Revision 1.2 2004/05/18 22:31:20 bporcella
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// instruction test getting to final stages
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// instruction test getting to final stages
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//
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//
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// Revision 1.1 2004/04/17 18:26:06 bporcella
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// Revision 1.1 2004/04/17 18:26:06 bporcella
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// put this here to try an end-run around lint mikefile problem
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// put this here to try an end-run around lint mikefile problem
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//
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//
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// Revision 1.1.1.1 2004/04/13 23:47:56 bporcella
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// Revision 1.1.1.1 2004/04/13 23:47:56 bporcella
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// import first files
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// import first files
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//
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//
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//
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//
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//
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//
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//-------1---------2---------3--------Comments on file -------------7---------8---------9--------0
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//-------1---------2---------3--------Comments on file -------------7---------8---------9--------0
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//
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//
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parameter NOP = 10'h00,// NOP ; 00
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parameter NOP = 10'h00,// NOP ; 00
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LDsBC_NN = 10'h01,// LD BC,NN ; 01 XX XX
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LDsBC_NN = 10'h01,// LD BC,NN ; 01 XX XX
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LDs6BC7_A = 10'h02,// LD (BC),A ; 02
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LDs6BC7_A = 10'h02,// LD (BC),A ; 02
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INCsBC = 10'h03,// INC BC ; 03
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INCsBC = 10'h03,// INC BC ; 03
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INCsB = 10'h04,// INC B ; 04
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INCsB = 10'h04,// INC B ; 04
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DECsB = 10'h05,// DEC B ; 05
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DECsB = 10'h05,// DEC B ; 05
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LDsB_N = 10'h06,// LD B,N ; 06 XX
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LDsB_N = 10'h06,// LD B,N ; 06 XX
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RLCA = 10'h07,// RLCA ; 07
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RLCA = 10'h07,// RLCA ; 07
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EXsAF_AFp = 10'h08,// EX AF,AF' ; 08
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EXsAF_AFp = 10'h08,// EX AF,AF' ; 08
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ADDsHL_BC = 10'h09,// ADD HL,BC ; 09
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ADDsHL_BC = 10'h09,// ADD HL,BC ; 09
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LDsA_6BC7 = 10'h0A,// LD A,(BC) ; 0A
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LDsA_6BC7 = 10'h0A,// LD A,(BC) ; 0A
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DECsBC = 10'h0B,// DEC BC ; 0B
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DECsBC = 10'h0B,// DEC BC ; 0B
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INCsC = 10'h0C,// INC C ; 0C
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INCsC = 10'h0C,// INC C ; 0C
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DECsC = 10'h0D,// DEC C ; 0D
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DECsC = 10'h0D,// DEC C ; 0D
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LDsC_N = 10'h0E,// LD C,N ; 0E XX
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LDsC_N = 10'h0E,// LD C,N ; 0E XX
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RRCA = 10'h0F,// RRCA ; 0F
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RRCA = 10'h0F,// RRCA ; 0F
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DJNZs$t2 = 10'h10,// DJNZ $+2 ; 10 XX
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DJNZs$t2 = 10'h10,// DJNZ $+2 ; 10 XX
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LDsDE_NN = 10'h11,// LD DE,NN ; 11 XX XX
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LDsDE_NN = 10'h11,// LD DE,NN ; 11 XX XX
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LDs6DE7_A = 10'h12,// LD (DE),A ; 12
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LDs6DE7_A = 10'h12,// LD (DE),A ; 12
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INCsDE = 10'h13,// INC DE ; 13
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INCsDE = 10'h13,// INC DE ; 13
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INCsD = 10'h14,// INC D ; 14
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INCsD = 10'h14,// INC D ; 14
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DECsD = 10'h15,// DEC D ; 15
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DECsD = 10'h15,// DEC D ; 15
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LDsD_N = 10'h16,// LD D,N ; 16 XX
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LDsD_N = 10'h16,// LD D,N ; 16 XX
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RLA = 10'h17,// RLA ; 17
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RLA = 10'h17,// RLA ; 17
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JRs$t2 = 10'h18,// JR $+2 ; 18 XX
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JRs$t2 = 10'h18,// JR $+2 ; 18 XX
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ADDsHL_DE = 10'h19,// ADD HL,DE ; 19
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ADDsHL_DE = 10'h19,// ADD HL,DE ; 19
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LDsA_6DE7 = 10'h1A,// LD A,(DE) ; 1A
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LDsA_6DE7 = 10'h1A,// LD A,(DE) ; 1A
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DECsDE = 10'h1B,// DEC DE ; 1B
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DECsDE = 10'h1B,// DEC DE ; 1B
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INCsE = 10'h1C,// INC E ; 1C
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INCsE = 10'h1C,// INC E ; 1C
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DECsE = 10'h1D,// DEC E ; 1D
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DECsE = 10'h1D,// DEC E ; 1D
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LDsE_N = 10'h1E,// LD E,N ; 1E XX
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LDsE_N = 10'h1E,// LD E,N ; 1E XX
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RRA = 10'h1F,// RRA ; 1F
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RRA = 10'h1F,// RRA ; 1F
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JRsNZ_$t2 = 10'h20,// JR NZ,$+2 ; 20
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JRsNZ_$t2 = 10'h20,// JR NZ,$+2 ; 20
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LDsHL_NN = 10'h21,// LD HL,NN ; 21 XX XX
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LDsHL_NN = 10'h21,// LD HL,NN ; 21 XX XX
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LDs6NN7_HL = 10'h22,// LD (NN),HL ; 22 XX XX
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LDs6NN7_HL = 10'h22,// LD (NN),HL ; 22 XX XX
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INCsHL = 10'h23,// INC HL ; 23
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INCsHL = 10'h23,// INC HL ; 23
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INCsH = 10'h24,// INC H ; 24
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INCsH = 10'h24,// INC H ; 24
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DECsH = 10'h25,// DEC H ; 25
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DECsH = 10'h25,// DEC H ; 25
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LDsH_N = 10'h26,// LD H,N ; 26 XX
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LDsH_N = 10'h26,// LD H,N ; 26 XX
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DAA = 10'h27,// DAA ; 27
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DAA = 10'h27,// DAA ; 27
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JRsZ_$t2 = 10'h28,// JR Z,$+2 ; 28 XX
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JRsZ_$t2 = 10'h28,// JR Z,$+2 ; 28 XX
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ADDsHL_HL = 10'h29,// ADD HL,HL ; 29
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ADDsHL_HL = 10'h29,// ADD HL,HL ; 29
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LDsHL_6NN7 = 10'h2A,// LD HL,(NN) ; 2A XX XX
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LDsHL_6NN7 = 10'h2A,// LD HL,(NN) ; 2A XX XX
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DECsHL = 10'h2B,// DEC HL ; 2B
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DECsHL = 10'h2B,// DEC HL ; 2B
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INCsL = 10'h2C,// INC L ; 2C
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INCsL = 10'h2C,// INC L ; 2C
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DECsL = 10'h2D,// DEC L ; 2D
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DECsL = 10'h2D,// DEC L ; 2D
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LDsL_N = 10'h2E,// LD L,N ; 2E XX
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LDsL_N = 10'h2E,// LD L,N ; 2E XX
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CPL = 10'h2F,// CPL ; 2F
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CPL = 10'h2F,// CPL ; 2F
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JRsNC_$t2 = 10'h30,// JR NC,$+2 ; 30 XX
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JRsNC_$t2 = 10'h30,// JR NC,$+2 ; 30 XX
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LDsSP_NN = 10'h31,// LD SP,NN ; 31 XX XX
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LDsSP_NN = 10'h31,// LD SP,NN ; 31 XX XX
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LDs6NN7_A = 10'h32,// LD (NN),A ; 32 XX XX
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LDs6NN7_A = 10'h32,// LD (NN),A ; 32 XX XX
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INCsSP = 10'h33,// INC SP ; 33
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INCsSP = 10'h33,// INC SP ; 33
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INCs6HL7 = 10'h34,// INC (HL) ; 34
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INCs6HL7 = 10'h34,// INC (HL) ; 34
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DECs6HL7 = 10'h35,// DEC (HL) ; 35
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DECs6HL7 = 10'h35,// DEC (HL) ; 35
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LDs6HL7_N = 10'h36,// LD (HL),N ; 36 XX
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LDs6HL7_N = 10'h36,// LD (HL),N ; 36 XX
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SCF = 10'h37,// SCF ; 37
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SCF = 10'h37,// SCF ; 37
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JRsC_$t2 = 10'h38,// JR C,$+2 ; 38 XX
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JRsC_$t2 = 10'h38,// JR C,$+2 ; 38 XX
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ADDsHL_SP = 10'h39,// ADD HL,SP ; 39
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ADDsHL_SP = 10'h39,// ADD HL,SP ; 39
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LDsA_6NN7 = 10'h3A,// LD A,(NN) ; 3A XX XX
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LDsA_6NN7 = 10'h3A,// LD A,(NN) ; 3A XX XX
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DECsSP = 10'h3B,// DEC SP ; 3B
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DECsSP = 10'h3B,// DEC SP ; 3B
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INCsA = 10'h3C,// INC A ; 3C
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INCsA = 10'h3C,// INC A ; 3C
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DECsA = 10'h3D,// DEC A ; 3D
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DECsA = 10'h3D,// DEC A ; 3D
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LDsA_N = 10'h3E,// LD A,N ; 3E XX
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LDsA_N = 10'h3E,// LD A,N ; 3E XX
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CCF = 10'h3F,// CCF ; 3F
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CCF = 10'h3F,// CCF ; 3F
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LDsB_B = 10'h40,// LD B,B ; 40
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LDsB_B = 10'h40,// LD B,B ; 40
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LDsB_C = 10'h41,// LD B,C ; 41
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LDsB_C = 10'h41,// LD B,C ; 41
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LDsB_D = 10'h42,// LD B,D ; 42
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LDsB_D = 10'h42,// LD B,D ; 42
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LDsB_E = 10'h43,// LD B,E ; 43
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LDsB_E = 10'h43,// LD B,E ; 43
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LDsB_H = 10'h44,// LD B,H ; 44
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LDsB_H = 10'h44,// LD B,H ; 44
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LDsB_L = 10'h45,// LD B,L ; 45
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LDsB_L = 10'h45,// LD B,L ; 45
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LDsB_6HL7 = 10'h46,// LD B,(HL) ; 46
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LDsB_6HL7 = 10'h46,// LD B,(HL) ; 46
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LDsB_A = 10'h47,// LD B,A ; 47
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LDsB_A = 10'h47,// LD B,A ; 47
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LDsC_B = 10'h48,// LD C,B ; 48
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LDsC_B = 10'h48,// LD C,B ; 48
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LDsC_C = 10'h49,// LD C,C ; 49
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LDsC_C = 10'h49,// LD C,C ; 49
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LDsC_D = 10'h4A,// LD C,D ; 4A
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LDsC_D = 10'h4A,// LD C,D ; 4A
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LDsC_E = 10'h4B,// LD C,E ; 4B
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LDsC_E = 10'h4B,// LD C,E ; 4B
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LDsC_H = 10'h4C,// LD C,H ; 4C
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LDsC_H = 10'h4C,// LD C,H ; 4C
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LDsC_L = 10'h4D,// LD C,L ; 4D
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LDsC_L = 10'h4D,// LD C,L ; 4D
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LDsC_6HL7 = 10'h4E,// LD C,(HL) ; 4E
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LDsC_6HL7 = 10'h4E,// LD C,(HL) ; 4E
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LDsC_A = 10'h4F,// LD C,A ; 4F
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LDsC_A = 10'h4F,// LD C,A ; 4F
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LDsD_B = 10'h50,// LD D,B ; 50
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LDsD_B = 10'h50,// LD D,B ; 50
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LDsD_C = 10'h51,// LD D,C ; 51
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LDsD_C = 10'h51,// LD D,C ; 51
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LDsD_D = 10'h52,// LD D,D ; 52
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LDsD_D = 10'h52,// LD D,D ; 52
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LDsD_E = 10'h53,// LD D,E ; 53
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LDsD_E = 10'h53,// LD D,E ; 53
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LDsD_H = 10'h54,// LD D,H ; 54
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LDsD_H = 10'h54,// LD D,H ; 54
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LDsD_L = 10'h55,// LD D,L ; 55
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LDsD_L = 10'h55,// LD D,L ; 55
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LDsD_6HL7 = 10'h56,// LD D,(HL) ; 56
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LDsD_6HL7 = 10'h56,// LD D,(HL) ; 56
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LDsD_A = 10'h57,// LD D,A ; 57
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LDsD_A = 10'h57,// LD D,A ; 57
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LDsE_B = 10'h58,// LD E,B ; 58
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LDsE_B = 10'h58,// LD E,B ; 58
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LDsE_C = 10'h59,// LD E,C ; 59
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LDsE_C = 10'h59,// LD E,C ; 59
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LDsE_D = 10'h5A,// LD E,D ; 5A
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LDsE_D = 10'h5A,// LD E,D ; 5A
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LDsE_E = 10'h5B,// LD E,E ; 5B
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LDsE_E = 10'h5B,// LD E,E ; 5B
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LDsE_H = 10'h5C,// LD E,H ; 5C
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LDsE_H = 10'h5C,// LD E,H ; 5C
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LDsE_L = 10'h5D,// LD E,L ; 5D
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LDsE_L = 10'h5D,// LD E,L ; 5D
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LDsE_6HL7 = 10'h5E,// LD E,(HL) ; 5E
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LDsE_6HL7 = 10'h5E,// LD E,(HL) ; 5E
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LDsE_A = 10'h5F,// LD E,A ; 5F
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LDsE_A = 10'h5F,// LD E,A ; 5F
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LDsH_B = 10'h60,// LD H,B ; 60
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LDsH_B = 10'h60,// LD H,B ; 60
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LDsH_C = 10'h61,// LD H,C ; 61
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LDsH_C = 10'h61,// LD H,C ; 61
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LDsH_D = 10'h62,// LD H,D ; 62
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LDsH_D = 10'h62,// LD H,D ; 62
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LDsH_E = 10'h63,// LD H,E ; 63
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LDsH_E = 10'h63,// LD H,E ; 63
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LDsH_H = 10'h64,// LD H,H ; 64
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LDsH_H = 10'h64,// LD H,H ; 64
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LDsH_L = 10'h65,// LD H,L ; 65
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LDsH_L = 10'h65,// LD H,L ; 65
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LDsH_6HL7 = 10'h66,// LD H,(HL) ; 66
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LDsH_6HL7 = 10'h66,// LD H,(HL) ; 66
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LDsH_A = 10'h67,// LD H,A ; 67
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LDsH_A = 10'h67,// LD H,A ; 67
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LDsL_B = 10'h68,// LD L,B ; 68
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LDsL_B = 10'h68,// LD L,B ; 68
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LDsL_C = 10'h69,// LD L,C ; 69
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LDsL_C = 10'h69,// LD L,C ; 69
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LDsL_D = 10'h6A,// LD L,D ; 6A
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LDsL_D = 10'h6A,// LD L,D ; 6A
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LDsL_E = 10'h6B,// LD L,E ; 6B
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LDsL_E = 10'h6B,// LD L,E ; 6B
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LDsL_H = 10'h6C,// LD L,H ; 6C
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LDsL_H = 10'h6C,// LD L,H ; 6C
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LDsL_L = 10'h6D,// LD L,L ; 6D
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LDsL_L = 10'h6D,// LD L,L ; 6D
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LDsL_6HL7 = 10'h6E,// LD L,(HL) ; 6E
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LDsL_6HL7 = 10'h6E,// LD L,(HL) ; 6E
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LDsL_A = 10'h6F,// LD L,A ; 6F
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LDsL_A = 10'h6F,// LD L,A ; 6F
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LDs6HL7_B = 10'h70,// LD (HL),B ; 70
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LDs6HL7_B = 10'h70,// LD (HL),B ; 70
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LDs6HL7_C = 10'h71,// LD (HL),C ; 71
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LDs6HL7_C = 10'h71,// LD (HL),C ; 71
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LDs6HL7_D = 10'h72,// LD (HL),D ; 72
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LDs6HL7_D = 10'h72,// LD (HL),D ; 72
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LDs6HL7_E = 10'h73,// LD (HL),E ; 73
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LDs6HL7_E = 10'h73,// LD (HL),E ; 73
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LDs6HL7_H = 10'h74,// LD (HL),H ; 74
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LDs6HL7_H = 10'h74,// LD (HL),H ; 74
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LDs6HL7_L = 10'h75,// LD (HL),L ; 75
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LDs6HL7_L = 10'h75,// LD (HL),L ; 75
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HALT = 10'h76,// HALT ; 76
|
HALT = 10'h76,// HALT ; 76
|
LDs6HL7_A = 10'h77,// LD (HL),A ; 77
|
LDs6HL7_A = 10'h77,// LD (HL),A ; 77
|
LDsA_B = 10'h78,// LD A,B ; 78
|
LDsA_B = 10'h78,// LD A,B ; 78
|
LDsA_C = 10'h79,// LD A,C ; 79
|
LDsA_C = 10'h79,// LD A,C ; 79
|
LDsA_D = 10'h7A,// LD A,D ; 7A
|
LDsA_D = 10'h7A,// LD A,D ; 7A
|
LDsA_E = 10'h7B,// LD A,E ; 7B
|
LDsA_E = 10'h7B,// LD A,E ; 7B
|
LDsA_H = 10'h7C,// LD A,H ; 7C
|
LDsA_H = 10'h7C,// LD A,H ; 7C
|
LDsA_L = 10'h7D,// LD A,L ; 7D
|
LDsA_L = 10'h7D,// LD A,L ; 7D
|
LDsA_6HL7 = 10'h7E,// LD A,(HL) ; 7E
|
LDsA_6HL7 = 10'h7E,// LD A,(HL) ; 7E
|
LDsA_A = 10'h7F,// LD A,A ; 7F
|
LDsA_A = 10'h7F,// LD A,A ; 7F
|
ADDsA_B = 10'h80,// ADD A,B ; 80
|
ADDsA_B = 10'h80,// ADD A,B ; 80
|
ADDsA_C = 10'h81,// ADD A,C ; 81
|
ADDsA_C = 10'h81,// ADD A,C ; 81
|
ADDsA_D = 10'h82,// ADD A,D ; 82
|
ADDsA_D = 10'h82,// ADD A,D ; 82
|
ADDsA_E = 10'h83,// ADD A,E ; 83
|
ADDsA_E = 10'h83,// ADD A,E ; 83
|
ADDsA_H = 10'h84,// ADD A,H ; 84
|
ADDsA_H = 10'h84,// ADD A,H ; 84
|
ADDsA_L = 10'h85,// ADD A,L ; 85
|
ADDsA_L = 10'h85,// ADD A,L ; 85
|
ADDsA_6HL7 = 10'h86,// ADD A,(HL) ; 86
|
ADDsA_6HL7 = 10'h86,// ADD A,(HL) ; 86
|
ADDsA_A = 10'h87,// ADD A,A ; 87
|
ADDsA_A = 10'h87,// ADD A,A ; 87
|
ADCsA_B = 10'h88,// ADC A,B ; 88
|
ADCsA_B = 10'h88,// ADC A,B ; 88
|
ADCsA_C = 10'h89,// ADC A,C ; 89
|
ADCsA_C = 10'h89,// ADC A,C ; 89
|
ADCsA_D = 10'h8A,// ADC A,D ; 8A
|
ADCsA_D = 10'h8A,// ADC A,D ; 8A
|
ADCsA_E = 10'h8B,// ADC A,E ; 8B
|
ADCsA_E = 10'h8B,// ADC A,E ; 8B
|
ADCsA_H = 10'h8C,// ADC A,H ; 8C
|
ADCsA_H = 10'h8C,// ADC A,H ; 8C
|
ADCsA_L = 10'h8D,// ADC A,L ; 8D
|
ADCsA_L = 10'h8D,// ADC A,L ; 8D
|
ADCsA_6HL7 = 10'h8E,// ADC A,(HL) ; 8E
|
ADCsA_6HL7 = 10'h8E,// ADC A,(HL) ; 8E
|
ADCsA_A = 10'h8F,// ADC A,A ; 8F
|
ADCsA_A = 10'h8F,// ADC A,A ; 8F
|
SUBsB = 10'h90,// SUB B ; 90
|
SUBsB = 10'h90,// SUB B ; 90
|
SUBsC = 10'h91,// SUB C ; 91
|
SUBsC = 10'h91,// SUB C ; 91
|
SUBsD = 10'h92,// SUB D ; 92
|
SUBsD = 10'h92,// SUB D ; 92
|
SUBsE = 10'h93,// SUB E ; 93
|
SUBsE = 10'h93,// SUB E ; 93
|
SUBsH = 10'h94,// SUB H ; 94
|
SUBsH = 10'h94,// SUB H ; 94
|
SUBsL = 10'h95,// SUB L ; 95
|
SUBsL = 10'h95,// SUB L ; 95
|
SUBs6HL7 = 10'h96,// SUB (HL) ; 96
|
SUBs6HL7 = 10'h96,// SUB (HL) ; 96
|
SUBsA = 10'h97,// SUB A ; 97
|
SUBsA = 10'h97,// SUB A ; 97
|
SBCsB = 10'h98,// SBC B ; 98
|
SBCsB = 10'h98,// SBC B ; 98
|
SBCsC = 10'h99,// SBC C ; 99
|
SBCsC = 10'h99,// SBC C ; 99
|
SBCsD = 10'h9A,// SBC D ; 9A
|
SBCsD = 10'h9A,// SBC D ; 9A
|
SBCsE = 10'h9B,// SBC E ; 9B
|
SBCsE = 10'h9B,// SBC E ; 9B
|
SBCsH = 10'h9C,// SBC H ; 9C
|
SBCsH = 10'h9C,// SBC H ; 9C
|
SBCsL = 10'h9D,// SBC L ; 9D
|
SBCsL = 10'h9D,// SBC L ; 9D
|
SBCs6HL7 = 10'h9E,// SBC (HL) ; 9E
|
SBCs6HL7 = 10'h9E,// SBC (HL) ; 9E
|
SBCsA = 10'h9F,// SBC A ; 9F
|
SBCsA = 10'h9F,// SBC A ; 9F
|
ANDsB = 10'hA0,// AND B ; A0
|
ANDsB = 10'hA0,// AND B ; A0
|
ANDsC = 10'hA1,// AND C ; A1
|
ANDsC = 10'hA1,// AND C ; A1
|
ANDsD = 10'hA2,// AND D ; A2
|
ANDsD = 10'hA2,// AND D ; A2
|
ANDsE = 10'hA3,// AND E ; A3
|
ANDsE = 10'hA3,// AND E ; A3
|
ANDsH = 10'hA4,// AND H ; A4
|
ANDsH = 10'hA4,// AND H ; A4
|
ANDsL = 10'hA5,// AND L ; A5
|
ANDsL = 10'hA5,// AND L ; A5
|
ANDs6HL7 = 10'hA6,// AND (HL) ; A6
|
ANDs6HL7 = 10'hA6,// AND (HL) ; A6
|
ANDsA = 10'hA7,// AND A ; A7
|
ANDsA = 10'hA7,// AND A ; A7
|
XORsB = 10'hA8,// XOR B ; A8
|
XORsB = 10'hA8,// XOR B ; A8
|
XORsC = 10'hA9,// XOR C ; A9
|
XORsC = 10'hA9,// XOR C ; A9
|
XORsD = 10'hAA,// XOR D ; AA
|
XORsD = 10'hAA,// XOR D ; AA
|
XORsE = 10'hAB,// XOR E ; AB
|
XORsE = 10'hAB,// XOR E ; AB
|
XORsH = 10'hAC,// XOR H ; AC
|
XORsH = 10'hAC,// XOR H ; AC
|
XORsL = 10'hAD,// XOR L ; AD
|
XORsL = 10'hAD,// XOR L ; AD
|
XORs6HL7 = 10'hAE,// XOR (HL) ; AE
|
XORs6HL7 = 10'hAE,// XOR (HL) ; AE
|
XORsA = 10'hAF,// XOR A ; AF
|
XORsA = 10'hAF,// XOR A ; AF
|
ORsB = 10'hB0,// OR B ; B0
|
ORsB = 10'hB0,// OR B ; B0
|
ORsC = 10'hB1,// OR C ; B1
|
ORsC = 10'hB1,// OR C ; B1
|
ORsD = 10'hB2,// OR D ; B2
|
ORsD = 10'hB2,// OR D ; B2
|
ORsE = 10'hB3,// OR E ; B3
|
ORsE = 10'hB3,// OR E ; B3
|
ORsH = 10'hB4,// OR H ; B4
|
ORsH = 10'hB4,// OR H ; B4
|
ORsL = 10'hB5,// OR L ; B5
|
ORsL = 10'hB5,// OR L ; B5
|
ORs6HL7 = 10'hB6,// OR (HL) ; B6
|
ORs6HL7 = 10'hB6,// OR (HL) ; B6
|
ORsA = 10'hB7,// OR A ; B7
|
ORsA = 10'hB7,// OR A ; B7
|
CPsB = 10'hB8,// CP B ; B8
|
CPsB = 10'hB8,// CP B ; B8
|
CPsC = 10'hB9,// CP C ; B9
|
CPsC = 10'hB9,// CP C ; B9
|
CPsD = 10'hBA,// CP D ; BA
|
CPsD = 10'hBA,// CP D ; BA
|
CPsE = 10'hBB,// CP E ; BB
|
CPsE = 10'hBB,// CP E ; BB
|
CPsH = 10'hBC,// CP H ; BC
|
CPsH = 10'hBC,// CP H ; BC
|
CPsL = 10'hBD,// CP L ; BD
|
CPsL = 10'hBD,// CP L ; BD
|
CPs6HL7 = 10'hBE,// CP (HL) ; BE
|
CPs6HL7 = 10'hBE,// CP (HL) ; BE
|
CPsA = 10'hBF,// CP A ; BF
|
CPsA = 10'hBF,// CP A ; BF
|
RETsNZ = 10'hC0,// RET NZ ; C0
|
RETsNZ = 10'hC0,// RET NZ ; C0
|
POPsBC = 10'hC1,// POP BC ; C1
|
POPsBC = 10'hC1,// POP BC ; C1
|
JPsNZ = 10'hC2,// JP NZ ; C2 XX XX
|
JPsNZ = 10'hC2,// JP NZ ; C2 XX XX
|
JP = 10'hC3,// JP ; C3 XX XX
|
JP = 10'hC3,// JP ; C3 XX XX
|
CALLsNZ_NN = 10'hC4,// CALL NZ,NN ; C4 XX XX
|
CALLsNZ_NN = 10'hC4,// CALL NZ,NN ; C4 XX XX
|
PUSHsBC = 10'hC5,// PUSH BC ; C5
|
PUSHsBC = 10'hC5,// PUSH BC ; C5
|
ADDsA_N = 10'hC6,// ADD A,N ; C6 XX
|
ADDsA_N = 10'hC6,// ADD A,N ; C6 XX
|
RSTs0 = 10'hC7,// RST 0 ; C7
|
RSTs0 = 10'hC7,// RST 0 ; C7
|
RETsZ = 10'hC8,// RET Z ; C8
|
RETsZ = 10'hC8,// RET Z ; C8
|
RET = 10'hC9,// RET ; C9
|
RET = 10'hC9,// RET ; C9
|
JPsZ = 10'hCA,// JP Z ; CA XX XX
|
JPsZ = 10'hCA,// JP Z ; CA XX XX
|
CALLsZ_NN = 10'hCC,// CALL Z,NN ; CC XX XX
|
CALLsZ_NN = 10'hCC,// CALL Z,NN ; CC XX XX
|
CBgrp = 10'hCB,// CBgrp is rotates and bit munging below
|
CBgrp = 10'hCB,// CBgrp is rotates and bit munging below
|
CALLsNN = 10'hCD,// CALL NN ; CD XX XX
|
CALLsNN = 10'hCD,// CALL NN ; CD XX XX
|
ADCsA_N = 10'hCE,// ADC A,N ; CE XX
|
ADCsA_N = 10'hCE,// ADC A,N ; CE XX
|
RSTs8H = 10'hCF,// RST 8H ; CF
|
RSTs8H = 10'hCF,// RST 8H ; CF
|
RETsNC = 10'hD0,// RET NC ; D0
|
RETsNC = 10'hD0,// RET NC ; D0
|
POPsDE = 10'hD1,// POP DE ; D1
|
POPsDE = 10'hD1,// POP DE ; D1
|
JPsNC = 10'hD2,// JP NC, ; D2 XX XX
|
JPsNC = 10'hD2,// JP NC, ; D2 XX XX
|
OUTs6N7_A = 10'hD3,// OUT (N),A ; D3 XX
|
OUTs6N7_A = 10'hD3,// OUT (N),A ; D3 XX
|
CALLsNC_NN = 10'hD4,// CALL NC,NN ; D4 XX XX
|
CALLsNC_NN = 10'hD4,// CALL NC,NN ; D4 XX XX
|
PUSHsDE = 10'hD5,// PUSH DE ; D5
|
PUSHsDE = 10'hD5,// PUSH DE ; D5
|
SUBsN = 10'hD6,// SUB N ; D6 XX
|
SUBsN = 10'hD6,// SUB N ; D6 XX
|
RSTs10H = 10'hD7,// RST 10H ; D7
|
RSTs10H = 10'hD7,// RST 10H ; D7
|
RETsC = 10'hD8,// RET C ; D8
|
RETsC = 10'hD8,// RET C ; D8
|
EXX = 10'hD9,// EXX ; D9
|
EXX = 10'hD9,// EXX ; D9
|
JPsC = 10'hDA,// JP C ; DA XX XX
|
JPsC = 10'hDA,// JP C ; DA XX XX
|
INsA_6N7 = 10'hDB,// IN A,(N) ; DB XX
|
INsA_6N7 = 10'hDB,// IN A,(N) ; DB XX
|
CALLsC_NN = 10'hDC,// CALL C,NN ; DC XX XX
|
CALLsC_NN = 10'hDC,// CALL C,NN ; DC XX XX
|
DDgrp = 10'hDD,// DDgrp
|
DDgrp = 10'hDD,// DDgrp
|
SBCsA_N = 10'hDE,// SBC A,N ; DE XX
|
SBCsA_N = 10'hDE,// SBC A,N ; DE XX
|
RSTs18H = 10'hDF,// RST 18H ; DF
|
RSTs18H = 10'hDF,// RST 18H ; DF
|
RETsPO = 10'hE0,// RET PO ; E0
|
RETsPO = 10'hE0,// RET PO ; E0
|
POPsHL = 10'hE1,// POP HL ; E1
|
POPsHL = 10'hE1,// POP HL ; E1
|
JPsPO = 10'hE2,// JP PO ; E2 XX XX
|
JPsPO = 10'hE2,// JP PO ; E2 XX XX
|
EXs6SP7_HL = 10'hE3,// EX (SP),HL ; E3
|
EXs6SP7_HL = 10'hE3,// EX (SP),HL ; E3
|
CALLsPO_NN = 10'hE4,// CALL PO,NN ; E4 XX XX
|
CALLsPO_NN = 10'hE4,// CALL PO,NN ; E4 XX XX
|
PUSHsHL = 10'hE5,// PUSH HL ; E5
|
PUSHsHL = 10'hE5,// PUSH HL ; E5
|
ANDsN = 10'hE6,// AND N ; E6 XX
|
ANDsN = 10'hE6,// AND N ; E6 XX
|
RSTs20H = 10'hE7,// RST 20H ; E7
|
RSTs20H = 10'hE7,// RST 20H ; E7
|
RETsPE = 10'hE8,// RET PE ; E8
|
RETsPE = 10'hE8,// RET PE ; E8
|
JPsHL = 10'hE9,// JP HL ; E9 // documented as indirect IS NOT
|
JPsHL = 10'hE9,// JP HL ; E9 // documented as indirect IS NOT
|
JPsPE = 10'hEA,// JP PE, ; EA XX XX
|
JPsPE = 10'hEA,// JP PE, ; EA XX XX
|
EXsDE_HL = 10'hEB,// EX DE,HL ; EB
|
EXsDE_HL = 10'hEB,// EX DE,HL ; EB
|
CALLsPE_NN = 10'hEC,// CALL PE,NN ; EC XX XX
|
CALLsPE_NN = 10'hEC,// CALL PE,NN ; EC XX XX
|
EDgrp = 10'hED,// EDgrp ED
|
EDgrp = 10'hED,// EDgrp ED
|
XORsN = 10'hEE,// XOR N ; EE XX
|
XORsN = 10'hEE,// XOR N ; EE XX
|
RSTs28H = 10'hEF,// RST 28H ; EF
|
RSTs28H = 10'hEF,// RST 28H ; EF
|
RETsP = 10'hF0,// RET P ; F0
|
RETsP = 10'hF0,// RET P ; F0
|
POPsAF = 10'hF1,// POP AF ; F1
|
POPsAF = 10'hF1,// POP AF ; F1
|
JPsP = 10'hF2,// JP P ; F2 XX XX
|
JPsP = 10'hF2,// JP P ; F2 XX XX
|
DI = 10'hF3,// DI ; F3
|
DI = 10'hF3,// DI ; F3
|
CALLsP_NN = 10'hF4,// CALL P,NN ; F4 XX XX
|
CALLsP_NN = 10'hF4,// CALL P,NN ; F4 XX XX
|
PUSHsAF = 10'hF5,// PUSH AF ; F5
|
PUSHsAF = 10'hF5,// PUSH AF ; F5
|
ORsN = 10'hF6,// OR N ; F6 XX
|
ORsN = 10'hF6,// OR N ; F6 XX
|
RSTs30H = 10'hF7,// RST 30H ; F7
|
RSTs30H = 10'hF7,// RST 30H ; F7
|
RETsM = 10'hF8,// RET M ; F8
|
RETsM = 10'hF8,// RET M ; F8
|
LDsSP_HL = 10'hF9,// LD SP,HL ; F9
|
LDsSP_HL = 10'hF9,// LD SP,HL ; F9
|
JPsM = 10'hFA,// JP M, ; FA XX XX
|
JPsM = 10'hFA,// JP M, ; FA XX XX
|
EI = 10'hFB,// EI ; FB
|
EI = 10'hFB,// EI ; FB
|
CALLsM_NN = 10'hFC,// CALL M,NN ; FC XX XX
|
CALLsM_NN = 10'hFC,// CALL M,NN ; FC XX XX
|
FDgrp = 10'hFD,// FDgrp FD
|
FDgrp = 10'hFD,// FDgrp FD
|
CPsN = 10'hFE,// CP N ; FE XX
|
CPsN = 10'hFE,// CP N ; FE XX
|
RSTs38H = 10'hFF,// RST 38H ; FF
|
RSTs38H = 10'hFF,// RST 38H ; FF
|
|
|
// the CB set
|
// the CB set
|
// These have enough structure that I don't believe I will define a parameter for each
|
// These have enough structure that I don't believe I will define a parameter for each
|
// First cut below
|
// First cut below
|
CB_RLC = 7'b01_00_000, // these must be compaired with ir[9:3]
|
CB_RLC = 7'b01_00_000, // these must be compaired with ir[9:3]
|
CB_RRC = 7'b01_00_001, // these must be compaired with ir[9:3]
|
CB_RRC = 7'b01_00_001, // these must be compaired with ir[9:3]
|
CB_RL = 7'b01_00_010, // these must be compaired with ir[9:3]
|
CB_RL = 7'b01_00_010, // these must be compaired with ir[9:3]
|
CB_RR = 7'b01_00_011, // these must be compaired with ir[9:3]
|
CB_RR = 7'b01_00_011, // these must be compaired with ir[9:3]
|
CB_SLA = 7'b01_00_100, // these must be compaired with ir[9:3]
|
CB_SLA = 7'b01_00_100, // these must be compaired with ir[9:3]
|
CB_SRA = 7'b01_00_101, // these must be compaired with ir[9:3]
|
CB_SRA = 7'b01_00_101, // these must be compaired with ir[9:3]
|
CB_SLL = 7'b01_00_110, // these must be compaired with ir[9:3]
|
CB_SLL = 7'b01_00_110, // these must be compaired with ir[9:3]
|
CB_SRL = 7'b01_00_111, // these must be compaired with ir[9:3]
|
CB_SRL = 7'b01_00_111, // these must be compaired with ir[9:3]
|
|
|
CB_BIT = 4'b01_01, // these must be compaired with ir[9:6]
|
CB_BIT = 4'b01_01, // these must be compaired with ir[9:6]
|
CB_RES = 4'b01_10, // these must be compaired with ir[9:6]
|
CB_RES = 4'b01_10, // these must be compaired with ir[9:6]
|
CB_SET = 4'b01_11, // these must be compaired with ir[9:6]
|
CB_SET = 4'b01_11, // these must be compaired with ir[9:6]
|
|
|
CB_MEM = 3'b110, // this must be compaired with ir[2:0]
|
CB_MEM = 3'b110, // this must be compaired with ir[2:0]
|
// note these are all read-modify-writ except CB_BIT
|
// note these are all read-modify-writ except CB_BIT
|
|
|
// The ED Group
|
// The ED Group
|
// These are the "unique instructions in the 46, 47 rows that NEED? to be implemented
|
// These are the "unique instructions in the 46, 47 rows that NEED? to be implemented
|
// Not sure I want to worry about all undocumented stuff in these rows - hard to believe
|
// Not sure I want to worry about all undocumented stuff in these rows - hard to believe
|
// It will matter.(IM modes are very system dependent - hard to believe even a programmer
|
// It will matter.(IM modes are very system dependent - hard to believe even a programmer
|
// would use undocumented instructions to muck with this stuff)
|
// would use undocumented instructions to muck with this stuff)
|
ED_IMs0 = 10'h246, // IM 0 ; ED 46 set IM0
|
ED_IMs0 = 10'h246, // IM 0 ; ED 46 set IM0
|
ED_LDsI_A = 10'h247, // LD I,A ; ED 47 move a to I
|
ED_LDsI_A = 10'h247, // LD I,A ; ED 47 move a to I
|
ED_IMs1 = 10'h256, // IM 1 ; ED 56 set IM1
|
ED_IMs1 = 10'h256, // IM 1 ; ED 56 set IM1
|
ED_LDsA_I = 10'h257, // LD A,I ; ED 57 move I to A
|
ED_LDsA_I = 10'h257, // LD A,I ; ED 57 move I to A
|
ED_IMs2 = 10'h25E, // IM 2 ; ED 5E set IM2
|
ED_IMs2 = 10'h25E, // IM 2 ; ED 5E set IM2
|
ED_RRD = 10'h267, // RRD ; ED 67 nibble roates A (HL)
|
ED_RRD = 10'h267, // RRD ; ED 67 nibble roates A (HL)
|
ED_RLD = 10'h26F, // RLD ; ED 6F nibble roates A (HL)
|
ED_RLD = 10'h26F, // RLD ; ED 6F nibble roates A (HL)
|
|
|
|
|
ED_LDI = 10'h2A0, // LDI ; ED A0 These are block move
|
ED_LDI = 10'h2A0, // LDI ; ED A0 These are block move
|
ED_CPI = 10'h2A1, // CPI ; ED A1 type insts that don't repeat
|
ED_CPI = 10'h2A1, // CPI ; ED A1 type insts that don't repeat
|
ED_INI = 10'h2A2, // INI ; ED A2
|
ED_INI = 10'h2A2, // INI ; ED A2
|
ED_OUTI = 10'h2A3, // OUTI ; ED A3
|
ED_OUTI = 10'h2A3, // OUTI ; ED A3
|
ED_LDD = 10'h2A8, // LDD ; ED A8
|
ED_LDD = 10'h2A8, // LDD ; ED A8
|
ED_CPD = 10'h2A9, // CPD ; ED A9
|
ED_CPD = 10'h2A9, // CPD ; ED A9
|
ED_IND = 10'h2AA, // IND ; ED AA
|
ED_IND = 10'h2AA, // IND ; ED AA
|
ED_OUTD = 10'h2AB, // OUTD ; ED AB
|
ED_OUTD = 10'h2AB, // OUTD ; ED AB
|
ED_LDIR = 10'h2B0, // LDIR ; ED B0 These are block move
|
ED_LDIR = 10'h2B0, // LDIR ; ED B0 These are block move
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ED_CPIR = 10'h2B1, // CPIR ; ED B1 type insts that DO repeat
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ED_CPIR = 10'h2B1, // CPIR ; ED B1 type insts that DO repeat
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ED_INIR = 10'h2B2, // INIR ; ED B2
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ED_INIR = 10'h2B2, // INIR ; ED B2
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ED_OTIR = 10'h2B3, // OTIR ; ED B3
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ED_OTIR = 10'h2B3, // OTIR ; ED B3
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ED_LDDR = 10'h2B8, // LDDR ; ED B8
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ED_LDDR = 10'h2B8, // LDDR ; ED B8
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ED_CPDR = 10'h2B9, // CPDR ; ED B9
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ED_CPDR = 10'h2B9, // CPDR ; ED B9
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ED_INDR = 10'h2BA, // INDR ; ED BA
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ED_INDR = 10'h2BA, // INDR ; ED BA
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ED_OTDR = 10'h2BB, // OTDR ; ED BB
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ED_OTDR = 10'h2BB, // OTDR ; ED BB
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// the ED gropu definitions from 40 to 7f from document on undocumented insts.....
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// the ED gropu definitions from 40 to 7f from document on undocumented insts.....
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//
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//
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// ED40 IN B,(C) ED50 IN D,(C) ED60 IN H,(C) ED70 IN (C) / IN F,(C)
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// ED40 IN B,(C) ED50 IN D,(C) ED60 IN H,(C) ED70 IN (C) / IN F,(C)
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// ED41 OUT (C),B ED51 OUT (C),D ED61 OUT (C),H ED71 OUT (C),0*
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// ED41 OUT (C),B ED51 OUT (C),D ED61 OUT (C),H ED71 OUT (C),0*
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// ED42 SBC HL,BC ED52 SBC HL,DE ED62 SBC HL,HL ED72 SBC HL,SP
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// ED42 SBC HL,BC ED52 SBC HL,DE ED62 SBC HL,HL ED72 SBC HL,SP
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// ED43 LD (nn),BC ED53 LD (nn),DE ED63 LD (nn),HL ED73 LD (nn),SP
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// ED43 LD (nn),BC ED53 LD (nn),DE ED63 LD (nn),HL ED73 LD (nn),SP
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// ED44 NEG ED54 NEG* ED64 NEG* ED74 NEG*
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// ED44 NEG ED54 NEG* ED64 NEG* ED74 NEG*
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// ED45 RETN ED55 RETN* ED65 RETN* ED75 RETN*
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// ED45 RETN ED55 RETN* ED65 RETN* ED75 RETN*
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// ED46 IM 0 ED56 IM 1 ED66 IM 0* ED76 IM 1*
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// ED46 IM 0 ED56 IM 1 ED66 IM 0* ED76 IM 1*
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// ED47 LD I,A ED57 LD A,I ED67 RRD ED77 NOP*
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// ED47 LD I,A ED57 LD A,I ED67 RRD ED77 NOP*
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// ED48 IN C,(C) ED58 IN E,(C) ED68 IN L,(C) ED78 IN A,(C)
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// ED48 IN C,(C) ED58 IN E,(C) ED68 IN L,(C) ED78 IN A,(C)
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// ED49 OUT (C),C ED59 OUT (C),E ED69 OUT (C),L ED79 OUT (C),A
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// ED49 OUT (C),C ED59 OUT (C),E ED69 OUT (C),L ED79 OUT (C),A
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// ED4A ADC HL,BC ED5A ADC HL,DE ED6A ADC HL,HL ED7A ADC HL,SP
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// ED4A ADC HL,BC ED5A ADC HL,DE ED6A ADC HL,HL ED7A ADC HL,SP
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// ED4B LD BC,(nn) ED5B LD DE,(nn) ED6B LD HL,(nn) ED7B LD SP,(nn)
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// ED4B LD BC,(nn) ED5B LD DE,(nn) ED6B LD HL,(nn) ED7B LD SP,(nn)
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// ED4C NEG* ED5C NEG* ED6C NEG* ED7C NEG*
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// ED4C NEG* ED5C NEG* ED6C NEG* ED7C NEG*
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// ED4D RETI ED5D RETN* ED6D RETN* ED7D RETN*
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// ED4D RETI ED5D RETN* ED6D RETN* ED7D RETN*
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// ED4E IM 0* ED5E IM 2 ED6E IM 0* ED7E IM 2*
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// ED4E IM 0* ED5E IM 2 ED6E IM 0* ED7E IM 2*
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// ED4F LD R,A ED5F LD A,R ED6F RLD ED7F NOP*
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// ED4F LD R,A ED5F LD A,R ED6F RLD ED7F NOP*
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//The ED70 instruction reads from I/O port C,
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//The ED70 instruction reads from I/O port C,
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//but does not store the result.
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//but does not store the result.
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//It just affects the flags. like the other IN x,(C) instruction.
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//It just affects the flags. like the other IN x,(C) instruction.
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//
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//
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//ED71 simply outs the value 0 to I/O port C.
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//ED71 simply outs the value 0 to I/O port C.
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// This suggests that we should decode as follows:
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// This suggests that we should decode as follows:
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// I hope if I don't get all the IM duplicates right it won't be a tragedy
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// I hope if I don't get all the IM duplicates right it won't be a tragedy
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ED_INsREG_6C7 = 7'b1001___000, // compair with {ir[9:6],ir[2:0]}
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ED_INsREG_6C7 = 7'b1001___000, // compair with {ir[9:6],ir[2:0]}
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ED_OUTs6C7_REG = 7'b1001___001, // compair with {ir[9:6],ir[2:0]}
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ED_OUTs6C7_REG = 7'b1001___001, // compair with {ir[9:6],ir[2:0]}
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ED_SBCsHL_REG = 8'b1001__0010, // compair with {ir[9:6],ir[3:0]}
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ED_SBCsHL_REG = 8'b1001__0010, // compair with {ir[9:6],ir[3:0]}
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ED_ADCsHL_REG = 8'b1001__1010, // compair with {ir[9:6],ir[3:0]}
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ED_ADCsHL_REG = 8'b1001__1010, // compair with {ir[9:6],ir[3:0]}
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ED_LDs6NN7_REG = 8'b1001__0011, // compair with {ir[9:6],ir[3:0]} REG = BC,DE,HL,SP
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ED_LDs6NN7_REG = 8'b1001__0011, // compair with {ir[9:6],ir[3:0]} REG = BC,DE,HL,SP
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ED_LDsREG_6NN7 = 8'b1001__1011, // compair with {ir[9:6],ir[3:0]} REG = BC,DE,HL,SP
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ED_LDsREG_6NN7 = 8'b1001__1011, // compair with {ir[9:6],ir[3:0]} REG = BC,DE,HL,SP
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ED_NEG = 7'b1001___100, // compair with {ir[9:6],ir[2:0]} all A<= -A
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ED_NEG = 7'b1001___100, // compair with {ir[9:6],ir[2:0]} all A<= -A
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ED_RETN = 7'b1001___101, // compair with {ir[9:6],ir[2:0]} and !reti
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ED_RETN = 7'b1001___101, // compair with {ir[9:6],ir[2:0]} and !reti
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ED_RETI = 10'h24D,
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ED_RETI = 10'h24D,
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DBL_REG_BC = 2'b00, // compair with ir[5:4]
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DBL_REG_BC = 2'b00, // compair with ir[5:4]
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DBL_REG_DE = 2'b01, // compair with ir[5:4]
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DBL_REG_DE = 2'b01, // compair with ir[5:4]
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DBL_REG_HL = 2'b10, // compair with ir[5:4]
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DBL_REG_HL = 2'b10, // compair with ir[5:4]
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DBL_REG_SP = 2'b11, // compair with ir[5:4]
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DBL_REG_SP = 2'b11, // compair with ir[5:4]
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REG8_B = 3'b000,
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REG8_B = 3'b000,
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REG8_C = 3'b001,
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REG8_C = 3'b001,
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REG8_D = 3'b010,
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REG8_D = 3'b010,
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REG8_E = 3'b011,
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REG8_E = 3'b011,
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REG8_H = 3'b100,
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REG8_H = 3'b100,
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REG8_L = 3'b101,
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REG8_L = 3'b101,
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REG8_MEM = 3'b110,
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REG8_MEM = 3'b110,
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REG8_A = 3'b111;
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REG8_A = 3'b111;
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