yasm/libyasm/bc-int.h

/* $IdPath$
 * Bytecode internal structures header file
 *
 *  Copyright (C) 2001  Peter Johnson
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef YASM_BC_INT_H
#define YASM_BC_INT_H

struct yasm_effaddr {
    /*@only@*/ /*@null@*/ yasm_expr *disp;	/* address displacement */
    unsigned char len;		/* length of disp (in bytes), 0 if unknown,
				 * 0xff if unknown and required to be >0.
				 */
    unsigned char nosplit;	/* 1 if reg*2 should not be split into
				   reg+reg. (0 if not) */
};

struct yasm_immval {
    /*@only@*/ /*@null@*/ yasm_expr *val;

    unsigned char len;		/* final length (in bytes), 0 if unknown */
    unsigned char sign;		/* 1 if final imm is treated as signed */
};

struct yasm_bytecode {
    /*@reldef@*/ STAILQ_ENTRY(yasm_bytecode) link;

    yasm_bytecode_type type;

    /* number of times bytecode is repeated, NULL=1. */
    /*@only@*/ /*@null@*/ yasm_expr *multiple;

    unsigned long len;		/* total length of entire bytecode (including
				   multiple copies), 0 if unknown */

    /* where it came from */
    unsigned long line;

    /* other assembler state info */
    unsigned long offset;	/* 0 if unknown */

    /* storage for optimizer flags */
    unsigned long opt_flags;
};

#define yasm_bcs__next(x)		STAILQ_NEXT(x, link)

#endif