/*  PCSX2 - PS2 Emulator for PCs
 *  Copyright (C) 2002-2010  PCSX2 Dev Team
 *
 *  PCSX2 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 Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  PCSX2 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with PCSX2.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

namespace x86Emitter
{

enum G3Type {
    G3Type_NOT = 2,
    G3Type_NEG = 3,
    G3Type_MUL = 4,
    G3Type_iMUL = 5, // partial implementation, iMul has additional forms in ix86.cpp
    G3Type_DIV = 6,
    G3Type_iDIV = 7
};

// --------------------------------------------------------------------------------------
//  xImpl_Group3
// --------------------------------------------------------------------------------------
struct xImpl_Group3
{
    G3Type InstType;

    void operator()(const xRegisterInt &from) const;
    void operator()(const xIndirect64orLess &from) const;

#if 0
	template< typename T >
	void operator()( const xDirectOrIndirect<T>& from ) const
	{
		_DoI_helpermess( *this, from );
	}
#endif
};

// --------------------------------------------------------------------------------------
//  xImpl_MulDivBase
// --------------------------------------------------------------------------------------
// This class combines x86 and SSE/SSE2 instructions for iMUL and iDIV.
//
struct xImpl_MulDivBase
{
    G3Type InstType;
    u16 OpcodeSSE;

    void operator()(const xRegisterInt &from) const;
    void operator()(const xIndirect64orLess &from) const;

    const xImplSimd_DestRegSSE PS;
    const xImplSimd_DestRegSSE PD;
    const xImplSimd_DestRegSSE SS;
    const xImplSimd_DestRegSSE SD;
};

// --------------------------------------------------------------------------------------
//  xImpl_iDiv
// --------------------------------------------------------------------------------------
struct xImpl_iDiv
{
    void operator()(const xRegisterInt &from) const;
    void operator()(const xIndirect64orLess &from) const;

    const xImplSimd_DestRegSSE PS;
    const xImplSimd_DestRegSSE PD;
    const xImplSimd_DestRegSSE SS;
    const xImplSimd_DestRegSSE SD;
};

// --------------------------------------------------------------------------------------
//  xImpl_iMul
// --------------------------------------------------------------------------------------
//
struct xImpl_iMul
{
    void operator()(const xRegisterInt &from) const;
    void operator()(const xIndirect64orLess &from) const;

    // The following iMul-specific forms are valid for 16 and 32 bit register operands only!

    void operator()(const xRegister32 &to, const xRegister32 &from) const;
    void operator()(const xRegister32 &to, const xIndirectVoid &src) const;
    void operator()(const xRegister16 &to, const xRegister16 &from) const;
    void operator()(const xRegister16 &to, const xIndirectVoid &src) const;

    void operator()(const xRegister32 &to, const xRegister32 &from, s32 imm) const;
    void operator()(const xRegister32 &to, const xIndirectVoid &from, s32 imm) const;
    void operator()(const xRegister16 &to, const xRegister16 &from, s16 imm) const;
    void operator()(const xRegister16 &to, const xIndirectVoid &from, s16 imm) const;

    const xImplSimd_DestRegSSE PS;
    const xImplSimd_DestRegSSE PD;
    const xImplSimd_DestRegSSE SS;
    const xImplSimd_DestRegSSE SD;
};
}