Subversion Repositories theia_gpu

#ifndef INSTRUCTION_H

#define INSTRUCTION_H

/**********************************************************************************

Theia, Ray Cast Programable graphic Processing Unit.

Copyright (C) 2012  Diego Valverde (diego.valverde.g@gmail.com)

This program is free software; you can redistribute it and/or

modify it under the terms of the GNU General Public License

as published by the Free Software Foundation; either version 2

of the License, or (at your option) any later version.

This program 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 this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

***********************************************************************************/

#include <bitset>

#include <string>

#include <fstream>

#define OPERATION_SIZE 16

#define DESTINATION_SIZE 14

#define SOURCE1_SIZE 17

#define SOURCE0_SIZE 17

#define RETURN_VALUE_REGISTER   1

#define RETURN_ADDRESS_REGISTER 2//31

#define SPR_CONTROL_REGISTER    3  //30

#define SPR_CONTROL_REGISTER0   2

//----------------------------------------------------------------------------------

//#define DEBUG 1

//Use this macro instead of std::cout, it is easier to turn off

class NullStream

{

    public:

    NullStream() { }

    template<typename T> NullStream& operator<<(T const&) { return *this; }

};

#ifdef DEBUG

        #define DCOUT std::cout

#else

        #define DCOUT NullStream()

#endif

//----------------------------------------------------------------------------------

typedef enum

{

        ECHANNEL_X=4,

        ECHANNEL_Y=2,

        ECHANNEL_Z=1,

        ECHANNEL_XYZ=7

} ECHANNEL;

typedef enum

{

        SWX_X=0,

        SWX_Z,

        SWX_Y

} ESWIZZLE_X;

typedef enum

{

        SWY_Y=0,

        SWY_Z,

        SWY_X

} ESWIZZLE_Y;

typedef enum

{

        SWZ_Z=0,

        SWZ_Y,

        SWZ_X

} ESWIZZLE_Z;

typedef enum

{

        EOPERATION_NOP=0,

        EOPERATION_ADD=1,

        EOPERATION_DIV,

        EOPERATION_MUL,

        EOPERATION_SQRT,

        EOPERATION_LOGIC,

        EOPERATION_OUT

} EOPERATION;

typedef enum

{

ELOGIC_AND = 0,

ELOGIC_OR,

ELOGIC_NOT,

ELOGIC_SHL,

ELOGIC_SHR

}       ELOGIC_OPERATION;

typedef enum

{

        EROT_NONE = 0,

        EROT_SRC0_LEFT =1,

        EROT_SRC1_LEFT =2,

        EROT_SRC1_SCR0_LEFT = 3,

        EROT_SRC0_RIGHT=9,

        EROT_SRC1_RIGHT=10,

        EROT_SRC1_SRC0_RIGHT=11,

        EROT_RESULT_RIGHT=12

} EROTATION;

typedef enum

{

EBRANCH_ALWAYS=0,

EBRANCH_IF_ZERO,

EBRANCH_IF_NOT_ZERO,

EBRANCH_IF_SIGN,

EBRANCH_IF_NOT_SIGN,

EBRANCH_IF_ZERO_OR_SIGN,

EBRANCH_IF_ZERO_OR_NOT_SIGN

} EBRANCHTYPE;

class Instruction

{

  public:

        Instruction();

        ~Instruction();

  public:

        std::string PrintHex();

        std::string PrintBin();

        std::string PrintAssembly();

        void PrintFields();

        std::string PrintHex32();

        void Clear( void );

        bool mBisonFlagTrippleConstAssign;

  public:

    void SetFields( unsigned int aOperation, unsigned int aDestination, unsigned int aSrc1, unsigned int aSrc0 );

        void SetCode( EOPERATION aCode );

        void SetImm( unsigned int aLiteral );

        void SetImmBit( bool aImm );

        void SetDestZero( bool aZero );

        void SetSrc0Displace( bool aDisplace );

        void SetSrc1Displace( bool aDisplace );

        void SetLogicOperation(ELOGIC_OPERATION aOperation );

        void SetAddressingMode( bool, bool, bool  );

        void SetEofFlag( bool aEof );

        void SetWriteChannel( ECHANNEL aChannel );

        void ClearWriteChannel();

        void SetDestinationAddress( unsigned int aDestinationAddress );

        void SetDestination( std::bitset<DESTINATION_SIZE> aDestination );

        void SetDestinationSymbol( std::string aSymbol );

        void SetBranchFlag( bool aBranch );

        void SetBranchType( EBRANCHTYPE aType );

        //Source 1

        void SetSrc1SignX( bool aSign );

        void SetSrc1SignY( bool aSign );

        void SetSrc1SignZ( bool aSign );

        void SetSrc1SwizzleX( ESWIZZLE_X aChannel );

        void SetSrc1SwizzleY( ESWIZZLE_Y aChannel );

        void SetSrc1SwizzleZ( ESWIZZLE_Z aChannel );

        void SetSrc1Address( unsigned int aAddress );

        void SetSrc1Rotation( EROTATION aRotation );

        //Source 0

        void SetSrc0SignX( bool aSign );

        void SetSrc0SignY( bool aSign );

        void SetSrc0SignZ( bool aSign );

        void SetSrc0SwizzleX( ESWIZZLE_X aChannel );

        void SetSrc0SwizzleY( ESWIZZLE_Y aChannel );

        void SetSrc0SwizzleZ( ESWIZZLE_Z aChannel );

        void SetSrc0Address( unsigned int aAddress );

        void SetSrc0Rotation( EROTATION aRotation );

        std::bitset<DESTINATION_SIZE> GetDestination( void );

        unsigned int GetOperation( void );

        unsigned int GetAddressingMode( void );

        unsigned int GetDestinationAddress( void );

        bool         GetImm( void);

        ECHANNEL        GetWriteChannel( void );

  private:

        std::bitset<OPERATION_SIZE>   mOperation;

        std::string                   mOperationString;

        std::bitset<DESTINATION_SIZE> mDestination;

        std::bitset<SOURCE1_SIZE>     mSource1;

        std::bitset<SOURCE0_SIZE>     mSource0;

        unsigned int                  mLiteral;

        bool                          mDestinationIsSymbol;

        std::string                   mDestinationSymbol;

public:

        int                               mSourceLine;

        std::string                   mComment;

  private:

        //std::ofstream                 mOutputFile;

};

#endif