newlib/libgloss/frv/sim-read.S

43 lines
1.1 KiB
ArmAsm

/*
* sim-read.S -- read interface for frv simulator
*
* Copyright (c) 2002 Red Hat, Inc
*
* 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 <frv-asm.h>
#include "syscall.h"
/*
* Input:
* gr8 -- File descriptor.
* gr9 -- Buffer to be read into.
* gr10 -- Length of the buffer.
*
* Output:
* gr8 -- Length read or -1.
* errno -- Set if an error
*/
.globl EXT(_read)
.type EXT(_read),@function
.weak EXT(read)
.text
EXT(_read):
EXT(read):
setlos #SYS_read,gr7
tira gr0,#0
ret
.Lend:
.size EXT(_read),.Lend-EXT(_read)