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///////////////////////////////////////////////////////////////////////////////
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////
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//
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// Original Author: Allen Tao Zhong,
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// University of Electronic Science and Technology in China
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// email: zhong@opencores.org
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// info This is a SystemC ARM model,I "stole" some codes from
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// "swarm" , author Michael Dales (michael@dcs.gla.ac.uk)
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// scARMDPI.h: interface for the scARMDPI class.
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//
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//////////////////////////////////////////////////////////////////////
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#include ".\instructions\scARMInstruction.h"
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#include ".\components\registers\scRegisterFile.h" // Added by ClassView
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#include "scTypes.h" // Added by ClassView
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/* Data processing instruction - there are 3 types (see Furber book) */
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typedef struct DP1TAG
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{
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uint32_t imm : 8;
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uint32_t rot : 4;
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uint32_t rd : 4;
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uint32_t rn : 4;
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uint32_t set : 1;
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uint32_t opcode : 4;
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uint32_t hash : 1;
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uint32_t pad : 2;
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uint32_t cond : 4;
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} DPI1;
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typedef struct DP2TAG
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{
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uint32_t rm : 4;
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uint32_t pad2 : 1;
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uint32_t type : 2;
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uint32_t shift : 5;
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uint32_t rd : 4;
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uint32_t rn : 4;
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bool_t set : 1;
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uint32_t opcode : 4;
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uint32_t hash : 1;
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uint32_t pad : 2;
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uint32_t cond : 4;
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} DPI2;
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typedef struct DP3TAG
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{
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uint32_t rm : 4;
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uint32_t pad3 : 1;
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uint32_t type : 2;
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uint32_t pad2 : 1;
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uint32_t rs : 4;
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uint32_t rd : 4;
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uint32_t rn : 4;
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bool_t set : 1;
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uint32_t opcode : 4;
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uint32_t hash : 1;
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uint32_t pad : 2;
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uint32_t cond : 4;
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} DPI3;
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#define DPI_MASK 0x0C000000
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#define DPI_SIG 0x00000000
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class scARMDPI : public scARMInstruction
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{
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friend class scDecoder;
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public:
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scARMDPI();
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virtual ~scARMDPI();
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private:
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REGS get_Rs(uint32_t);
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bool_t get_Set(uint32_t nI);
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uint32_t get_Rot(uint32_t);
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void Decode(uint32_t);
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OPCODE get_opcode(uint32_t nI);
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SHIFT get_shift(uint32_t nI);
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REGS get_Rn(uint32_t nI);
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REGS get_Rm(uint32_t nI);
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uint32_t get_Imm(uint32_t nI);
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REGS get_Rd(uint32_t nI);
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uint32_t get_shift_dist(uint32_t nI);
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};
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