Subversion Repositories openrisc

/*
 * 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