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sysctl.cpp
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sysctl.cpp
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//==============================================================================
// MIPS(R) Architecture For Programmers Volume II-A: The MIPS64(R) Instruction Set Reference Manual
//
// Document Number: MD00087
// Revision 6.06
// December 15, 2016
//
// Copyright (C) Wave Computing, Inc. All rights reserved.
//==============================================================================
#include "cpu.h"
#include "sysctl.h"
//------------------------------------------------------------------------------
#define o &SYSCTL::
#define x , o
//------------------------------------------------------------------------------
// Table A.14 MIPS64 COP0 Encoding of rs Field
//------------------------------------------------------------------------------
const SYSCTL::FINSTRUCTION SYSCTL::tableRS[4 * 8] =
{
o MFC0 x DMFC0 x ____ x ____ x MTC0 x DMTC0 x ____ x ____
x ____ x ____ x RDPGPR x MFMC0 x ____ x ____ x WRPGPR x ____
x C0 x C0 x C0 x C0 x C0 x C0 x C0 x C0
x C0 x C0 x C0 x C0 x C0 x C0 x C0 x C0
};
//------------------------------------------------------------------------------
// Table A.15 MIPS64 COP0 Encoding of Function Field When rs=C0
//------------------------------------------------------------------------------
const SYSCTL::FINSTRUCTION SYSCTL::tableC0[8 * 8] =
{
o ____ x TLBR x TLBWI x TLBINV x TLBINVF x ____ x TLBWR x ____
x TLBP x ____ x ____ x ____ x ____ x ____ x ____ x ____
x ____ x ____ x ____ x ____ x ____ x ____ x ____ x ____
x ERET x ____ x ____ x ____ x ____ x ____ x ____ x DERET
x WAIT x ____ x ____ x ____ x ____ x ____ x ____ x ____
x ____ x ____ x ____ x ____ x ____ x ____ x ____ x ____
x ____ x ____ x ____ x ____ x ____ x ____ x ____ x ____
x ____ x ____ x ____ x ____ x ____ x ____ x ____ x ____
};
//------------------------------------------------------------------------------
#undef o
#undef x
//------------------------------------------------------------------------------
SYSCTL::SYSCTL(CPU& cpu_) : COP(cpu_)
{
}
//------------------------------------------------------------------------------
SYSCTL::~SYSCTL()
{
}
//------------------------------------------------------------------------------
void SYSCTL::Execute(unsigned int encode)
{
Encode = encode;
FINSTRUCTION RS = tableRS[rs];
(this->*RS)();
}
//------------------------------------------------------------------------------
void SYSCTL::LDC(unsigned int encode)
{
Encode = encode;
LL();
}
//------------------------------------------------------------------------------
void SYSCTL::LWC(unsigned int encode)
{
Encode = encode;
}
//------------------------------------------------------------------------------
void SYSCTL::SDC(unsigned int encode)
{
Encode = encode;
SC();
}
//------------------------------------------------------------------------------
void SYSCTL::SWC(unsigned int encode)
{
Encode = encode;
}
//------------------------------------------------------------------------------
void SYSCTL::LL()
{
intptr_t address = cpu.GPR[rs] + immediate;
if (address & 3)
{
cpu.SignalException(CPU::AddressErrorLoad);
}
else
{
int load = *(int*)address;
cpu.GPR[rt] = load;
}
}
//------------------------------------------------------------------------------
void SYSCTL::SC()
{
intptr_t address = cpu.GPR[rs] + immediate;
if (address & 3)
{
cpu.SignalException(CPU::AddressErrorStore);
}
else
{
int& store = *(int*)address;
store = (int)cpu.GPR[rt];
}
}
//------------------------------------------------------------------------------
// Table A.14 MIPS64 COP0 Encoding of rs Field
//------------------------------------------------------------------------------
void SYSCTL::MFC0()
{
}
//------------------------------------------------------------------------------
void SYSCTL::DMFC0()
{
}
//------------------------------------------------------------------------------
void SYSCTL::MTC0()
{
}
//------------------------------------------------------------------------------
void SYSCTL::DMTC0()
{
}
//------------------------------------------------------------------------------
void SYSCTL::RDPGPR()
{
}
//------------------------------------------------------------------------------
void SYSCTL::MFMC0()
{
}
//------------------------------------------------------------------------------
void SYSCTL::WRPGPR()
{
}
//------------------------------------------------------------------------------
void SYSCTL::C0()
{
FINSTRUCTION C0 = tableC0[rs];
(this->*C0)();
}
//------------------------------------------------------------------------------
// Table A.15 MIPS64 COP0 Encoding of Function Field When rs=C0
//------------------------------------------------------------------------------
void SYSCTL::TLBR()
{
}
//------------------------------------------------------------------------------
void SYSCTL::TLBWI()
{
}
//------------------------------------------------------------------------------
void SYSCTL::TLBINV()
{
}
//------------------------------------------------------------------------------
void SYSCTL::TLBINVF()
{
}
//------------------------------------------------------------------------------
void SYSCTL::TLBWR()
{
}
//------------------------------------------------------------------------------
void SYSCTL::TLBP()
{
}
//------------------------------------------------------------------------------
void SYSCTL::ERET()
{
}
//------------------------------------------------------------------------------
void SYSCTL::DERET()
{
}
//------------------------------------------------------------------------------
void SYSCTL::WAIT()
{
}
//------------------------------------------------------------------------------