mirror of
https://github.com/RetroDECK/Supermodel.git
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89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
/**
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** Supermodel
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** A Sega Model 3 Arcade Emulator.
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** Copyright 2011-2017 Bart Trzynadlowski, Nik Henson, Ian Curtis
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**
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** This file is part of Supermodel.
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**
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** Supermodel is free software: you can redistribute it and/or modify it under
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** the terms of the GNU General Public License as published by the Free
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** Software Foundation, either version 3 of the License, or (at your option)
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** any later version.
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**
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** Supermodel is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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** more details.
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**
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** You should have received a copy of the GNU General Public License along
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** with Supermodel. If not, see <http://www.gnu.org/licenses/>.
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**/
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/*
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* JTAG.h
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*
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* Header file defining the CJTAG class: the Model 3's JTAG device.
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*/
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#ifndef INCLUDED_JTAG_H
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#define INCLUDED_JTAG_H
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#include "BlockFile.h"
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#include "Util/BitRegister.h"
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class CReal3D;
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class CJTAG
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{
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public:
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enum Instruction: uint64_t
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{
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ReadASICIDCodes = 0x06318fc63fff,
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SetReal3DRenderConfig0 = 0x3fffffd1ffff,
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SetReal3DRenderConfig1 = 0x3ffffffe8fff
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};
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void SaveState(CBlockFile *SaveState);
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void LoadState(CBlockFile *SaveState);
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uint8_t Read();
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void Write(uint8_t tck, uint8_t tms, uint8_t tdi, uint8_t trst);
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void Reset();
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CJTAG(CReal3D &real3D);
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private:
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void LoadASICIDCodes();
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enum State: uint8_t
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{
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TestLogicReset, // 0
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RunTestIdle, // 1
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SelectDRScan, // 2
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CaptureDR, // 3
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ShiftDR, // 4
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Exit1DR, // 5
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PauseDR, // 6
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Exit2DR, // 7
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UpdateDR, // 8
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SelectIRScan, // 9
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CaptureIR, // 10
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ShiftIR, // 11
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Exit1IR, // 12
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PauseIR, // 13
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Exit2IR, // 14
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UpdateIR // 15
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};
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static const State s_fsm[][2];
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static const char *s_state[];
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CReal3D &m_real3D;
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Util::BitRegister m_instructionShiftReg;
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Util::BitRegister m_dataShiftReg;
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uint64_t m_instructionReg = 0;
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State m_state = State::TestLogicReset;
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uint8_t m_lastTck = 0;
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uint8_t m_tdo = 0;
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};
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#endif // INCLUDED_JTAG_H
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