source: rtems/c/src/lib/libbsp/i960/i960sim/console/console-io.c @ 68c498f4

4.104.114.84.95
Last change on this file since 68c498f4 was 68c498f4, checked in by Joel Sherrill <joel.sherrill@…>, on Jun 12, 2000 at 4:34:46 PM

Added i960sim BSP which (ignoring the 3 instructions not supported
by gdb 5.0's i960 simulator) is enough to run hello world.

  • Property mode set to 100644
File size: 1.1 KB
Line 
1/*
2 *  This file contains the hardware specific portions of the TTY driver
3 *  for the serial ports on the erc32.
4 *
5 *  COPYRIGHT (c) 1989-1997.
6 *  On-Line Applications Research Corporation (OAR).
7 *  Copyright assigned to U.S. Government, 1994.
8 *
9 *  The license and distribution terms for this file may be
10 *  found in the file LICENSE in this distribution or at
11 *  http://www.OARcorp.com/rtems/license.html.
12 *
13 *  $Id$
14 */
15
16#include <bsp.h>
17#include <rtems/libio.h>
18#include <stdlib.h>
19#include <assert.h>
20
21/* external prototypes for monitor interface routines */
22
23void outbyte( char );
24char inbyte( void );
25
26/*
27 *  console_outbyte_polled
28 *
29 *  This routine transmits a character using polling.
30 */
31
32void console_outbyte_polled(
33  int  port,
34  char ch
35)
36{
37  int status;
38  int nwritten;
39
40  status = _sys_write (1, &ch, 1, &nwritten);
41}
42
43/*
44 *  console_inbyte_nonblocking
45 *
46 *  This routine polls for a character.
47 */
48
49int console_inbyte_nonblocking(
50  int port
51)
52{
53  int status;
54  int nread;
55  char c;
56
57  status = _sys_read (0, &c, 1, &nread);
58  if ( status == 0 ) 
59    return c;
60  return -1;
61}
62
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