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/*

 * $Id: types.h,v 1.1.1.1 2004-04-09 19:20:53 arniml Exp $

 *

 */

#ifndef _TYPES_H_

#define _TYPES_H_

typedef unsigned char  UINT8;

typedef unsigned short UINT16;

typedef unsigned int   UINT32;

#define LSB_FIRST

/******************************************************************************

 * Union of UINT8, UINT16 and UINT32 in native endianess of the target

 * This is used to access bytes and words in a machine independent manner.

 * The upper bytes h2 and h3 normally contain zero (16 bit CPU cores)

 * thus PAIR.d can be used to pass arguments to the memory system

 * which expects 'int' really.

 ******************************************************************************/

typedef union {

#ifdef LSB_FIRST

        struct { UINT8 l,h,h2,h3; } b;

        struct { UINT16 l,h; } w;

#else

        struct { UINT8 h3,h2,h,l; } b;

        struct { UINT16 h,l; } w;

#endif

        UINT32 d;

}       PAIR;

/*************************************

 *

 *  Interrupt line constants

 *

 *************************************/

enum

{

    /* line states */

    CLEAR_LINE = 0,             /* clear (a fired, held or pulsed) line */

    ASSERT_LINE,                /* assert an interrupt immediately */

    HOLD_LINE,                  /* hold interrupt line until acknowledged */

    PULSE_LINE,                 /* pulse interrupt line for one instruction */

    /* internal flags (not for use by drivers!) */

    INTERNAL_CLEAR_LINE = 100 + CLEAR_LINE,

    INTERNAL_ASSERT_LINE = 100 + ASSERT_LINE,

    /* interrupt parameters */

    MAX_IRQ_LINES = 32+1,            /* maximum number of IRQ lines per CPU */

    IRQ_LINE_NMI = MAX_IRQ_LINES - 1 /* IRQ line for NMIs */

};

#endif