ppcdis.h

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/*
 *      HT Editor
 *      ppcdis.h
 *
 *      Copyright (C) 1999-2002 Sebastian Biallas (sb@web-productions.de)
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License version 2 as
 *      published by the Free Software Foundation.
 *
 *      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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef __PPC_DIS_H__
#define __PPC_DIS_H__

#include "asm.h"
#include "global.h"
#include "ppcopc.h"

struct ppcdis_operand {
        int flags;
        const powerpc_operand *op;
        union {
                int reg;    // general register
                int freg;   // float register
                int creg;   // condition register
                uint32 imm;
                struct {
                        uint32 disp;
                        int gr;
                } mem;
                struct {
                        uint32 mem;
                } abs;
                struct {
                        uint32 mem;
                } rel;
        };
};

struct ppcdis_insn {
        bool                            valid;
        int                             size;
        const char *            name;
        uint32                  data;
        int                             ops;
        ppcdis_operand          op[8];
};

class PPCDisassembler: public Disassembler {
protected:
        char insnstr[256];
        ppcdis_insn insn;
public:
                        PPCDisassembler();

        virtual dis_insn        *decode(byte *code, int maxlen, CPU_ADDR addr);
        virtual dis_insn        *duplicateInsn(dis_insn *disasm_insn);
        virtual void            getOpcodeMetrics(int &min_length, int &max_length, int &min_look_ahead, int &avg_look_ahead, int &addr_align);
        virtual byte            getSize(dis_insn *disasm_insn);
        virtual char            *getName();
        virtual char            *str(dis_insn *disasm_insn, int style);
        virtual char            *strf(dis_insn *disasm_insn, int style, char *format);
        virtual OBJECT_ID object_id() const;
        virtual bool            validInsn(dis_insn *disasm_insn);
};

#endif

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