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d52.h

/*
 * D52 8052 Disassembler
 * Copyright (C) 1995-2007 by Jeffery L. Post
 * j_post <AT> pacbell <DOT> net
 *
 * d52.h - 8052 disassembler definitions
 *
 * Version 3.4.1 - 2007/09/02
 *
 *    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 3 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
 *
 */

#ifndef _D52_H_
#define _D52_H_

#define     CPU_BIG_ENDIAN    // 8052 is big endian processor

#ifndef _DEFS_H_
#include    "defs.h"
#endif

//          Defined Constants

// opttbl bits:

#define     OPT_XFER          0x80  // unconditional transfer
#define     OPT_11            0x40  // 11 bit addressing
#define     OPT_REL           0x20  // relative addressing
#define     OPT_BIT           0x10  // bit addressing
#define     OPT_DIR           0x08  // direct addressing
#define     OPT_IMM           0x04  // immediate data
#define     OPT_3             0x02  // 3 byte instruction
#define     OPT_2             0x01  // 2 byte instruction

#define     OPT_MASK    (~OPT_XFER)                   // options mask
#define     OPT_NONE    0                                         // single byte, no options
#define     OPT_SIZE    (OPT_3   | OPT_2)       // additional byte count
#define     OPT_LREF    (OPT_IMM | OPT_3)       // ljmp, lcall or mov dptr
#define     OPT_IMM2    (OPT_IMM | OPT_2)       // 2 byte immediate data
#define     OPT_DIR2    (OPT_DIR | OPT_2)       // 2 byte direct adrs
#define     OPT_DIR3    (OPT_DIR | OPT_3)       // 3 byte direct adrs
#define     OPT_DMM3    (OPT_DIR | OPT_IMM | OPT_3)   // 3 byte dir & imm
#define     OPT_BIT2    (OPT_BIT | OPT_2)       // 2 byte bit adrs
#define     OPT_REL2    (OPT_REL | OPT_2)       // 2 byte relative adrs
#define     OPT_IR3     (OPT_REL | OPT_IMM | OPT_3)   // 3 byte rel & imm
#define     OPT_DR3     (OPT_REL | OPT_DIR | OPT_3)   // 3 byte rel & dir
#define     OPT_RELB    (OPT_REL | OPT_BIT | OPT_3)   // 3 byte rel & bit
#define     OPT_112     (OPT_11  | OPT_2)       // 2 byte 11 bit adrs

//
//          Prototypes
//

extern void usage(void);

//
//          Global Variables
//

extern int  keilflag;                                 // Keil A51 compatibility
extern int  incflag;                                        // include file flag

extern byte dirregs[128];                             // access flags for dir reg
extern byte sfrflags[128];                            // SFR name change flags
extern byte sbflags[128];                             // SFR bit name change flags
extern byte mbflags[128];                             // bit adrs mem name chg flgs

#endif      // _D52_H_


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