source: trunk/libs/newlib/src/libgloss/ft32/sim-read.S @ 633

Last change on this file since 633 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 1.1 KB
Line 
1/*
2 * sim-read.S -- read interface for FT32 simulator
3 *
4 * Copyright (C) 2015 FTDI (support@ftdichip.com)
5 *
6 * The authors hereby grant permission to use, copy, modify, distribute,
7 * and license this software and its documentation for any purpose, provided
8 * that existing copyright notices are retained in all copies and that this
9 * notice is included verbatim in any distributions. No written agreement,
10 * license, or royalty fee is required for any of the authorized uses.
11 * Modifications to this software may be copyrighted by their authors
12 * and need not follow the licensing terms described here, provided that
13 * the new terms are clearly indicated on the first page of each file where
14 * they apply.
15 */
16
17#include "syscall.h"
18
19/*
20 * Input:
21 * $r0              -- File descriptor.
22 * $r1              -- Buffer to be read into.
23 * -0x12($fp) -- Length of the buffer.
24 *
25 * Output:
26 * $r0          -- Length read or -1.
27 * errno  -- Set if an error
28 */
29
30        .globl        _read
31        .type        _read,@function
32        .weak        read
33        .text
34_read:
35read:
36        # swi        SYS_read
37        return
38.Lend:
39        .size        _read,.Lend-_read
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