Subversion Repositories scarm

///////////////////////////////////////////////////////////////////////////////

// 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

//////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////              

//          

//  Original Author: Allen Tao Zhong,

//  University of Electronic Science and Technology in China

//  email: zhong@opencores.org

//  info   This is a SystemC ARM model,I "stole" some codes from 

//       "swarm" , author Michael Dales (michael@dcs.gla.ac.uk)

//  scALU.h: interface for the scALU class.

//

//////////////////////////////////////////////////////////////////////

#ifndef ALU_H

#define ALU_H

#include"scTypes.h"

#include<systemc.h>

#include<sc_mslib.h>

enum ALU_AI {AI_NORM = 0, AI_HACK, AI_MAGIC, AI_MULT_LO, AI_MULT_HI};

enum ALU_BI {BI_NORM = 0, BI_HACK, BI_NULL, BI_MULT_LO, BI_MULT_HI};

enum COND {C_EQ = 0x0, C_NE = 0x1, C_CS = 0x2, C_CC = 0x3,

           C_MI = 0x4, C_PL = 0x5, C_VS = 0x6, C_VC = 0x7,

           C_HI = 0x8, C_LS = 0x9, C_GE = 0xA, C_LT = 0xB,

           C_GT = 0xC, C_LE = 0xD, C_AL = 0xE, C_NV = 0xF};

enum OPCODE {OP_AND = 0x00, OP_EOR = 0x01, OP_SUB = 0x02, OP_RSB = 0x03,

             OP_ADD = 0x04, OP_ADC = 0x05, OP_SBC = 0x06, OP_RSC = 0x07,

             OP_TST = 0x08, OP_TEQ = 0x09, OP_CMP = 0x0A, OP_CMN = 0x0B,

             OP_ORR = 0x0C, OP_MOV = 0x0D, OP_BIC = 0x0E, OP_MVN = 0x0F};

class scALU:public sc_module

{

public://ports

        sc_in<OPCODE>    in_OP;

        sc_in<uint32_t>  in_n_A;

        sc_in<uint32_t>  in_n_B;

    sc_out<uint32_t> out_n_Out;

        sc_inout<uint32_t> inout_n_Flag;

public:

        void display();

        SC_HAS_PROCESS(scALU);

        scALU(sc_module_name name) : sc_module(name)

    {

       SC_METHOD(entry);

           sensitive<<in_n_A<<in_n_B<<in_OP;

    }

        virtual ~scALU();

private://implementation 

        void entry(void);

 typedef uint32_t alu_fn(uint32_t a, uint32_t b, uint32_t* cont);

           alu_fn and_op;

           alu_fn eor_op;

           alu_fn sub_op;

           alu_fn rsb_op;

           alu_fn add_op;

           alu_fn adc_op;

           alu_fn sbc_op;

           alu_fn rsc_op;

           alu_fn tst_op;

           alu_fn teq_op;

           alu_fn cmp_op;

           alu_fn cmn_op;

           alu_fn orr_op;

           alu_fn mov_op;

           alu_fn bic_op;

           alu_fn mvn_op;

};

#endif