Subversion Repositories openrisc_2011-10-31

/*

 * idtmon.S -- lo-level entry points into IDT monitor.

 *

 * Copyright (c) 1996 Cygnus Support

 *

 * The authors hereby grant permission to use, copy, modify, distribute,

 * and license this software and its documentation for any purpose, provided

 * that existing copyright notices are retained in all copies and that this

 * notice is included verbatim in any distributions. No written agreement,

 * license, or royalty fee is required for any of the authorized uses.

 * Modifications to this software may be copyrighted by their authors

 * and need not follow the licensing terms described here, provided that

 * the new terms are clearly indicated on the first page of each file where

 * they apply.

 */

#ifdef __mips16

/* This file contains 32 bit assembly code.  */

        .set nomips16

#endif

#include "regs.S"

        .text

        .align  2

/* Provide named functions for entry into the IDT monitor: */

#define INDIRECT(name,index)                    \

        .globl  name;                           \

        .ent    name;                           \

name:   la      $2,+(0xbfc00000+((index)*8));   \

        j       $2;                             \

        .end name

/* The following magic numbers are for the slots into the IDT monitor: */

INDIRECT(open,6)

INDIRECT(read,7)

INDIRECT(write,8)

INDIRECT(close,10)

INDIRECT(inbyte,11)

INDIRECT(outbyte,12)

INDIRECT(mon_printf,16)

INDIRECT(_flush_cache,28)

INDIRECT(get_mem_info,55)       /* expects pointer to three word vector */

/* EOF idtmon.S */