Subversion Repositories openrisc_2011-10-31

/*

 * sim-read.S -- read interface for moxie simulator

 *

 * Copyright (c) 2008 Anthony Green

 *

 * 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.

 */

#include "syscall.h"

/*

 * Input:

 * $r0        -- File descriptor.

 * $r1        -- Buffer to be read into.

 * -0x12($fp) -- Length of the buffer.

 *

 * Output:

 * $r0    -- Length read or -1.

 * errno  -- Set if an error

 */

        .globl  _read

        .type   _read,@function

        .weak   read

        .text

_read:

read:

        swi     SYS_read

        ret

.Lend:

        .size   _read,.Lend-_read