source: mainline/boot/arch/mips32/src/putchar.c

Last change on this file was 28a5ebd, checked in by Martin Decky <martin@…>, 5 years ago

Use char32_t instead of wchat_t to represent UTF-32 strings

The intention of the native HelenOS string API has been always to
support Unicode in the UTF-8 and UTF-32 encodings as the sole character
representations and ignore the obsolete mess of older single-byte and
multibyte character encodings. Before C11, the wchar_t type has been
slightly misused for the purpose of the UTF-32 strings. The newer
char32_t type is obviously a much more suitable option. The standard
defines char32_t as uint_least32_t, thus we can take the liberty to fix
it to uint32_t.

To maintain compatilibity with the C Standard, the putwchar(wchar_t)
functions has been replaced by our custom putuchar(char32_t) functions
where appropriate.

  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 * Copyright (c) 2006 Martin Decky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <stddef.h>
30#include <stdint.h>
31#include <arch/arch.h>
32#include <putchar.h>
33#include <str.h>
34
35#ifdef PUTCHAR_ADDRESS
36#undef PUTCHAR_ADDRESS
37#endif
38
39#if defined(MACHINE_msim)
40#define _putchar(ch) msim_putchar((ch))
41static void msim_putchar(char ch)
42{
43 *((char *) MSIM_VIDEORAM_ADDRESS) = ch;
44}
45#endif
46
47#if defined(MACHINE_lmalta) || defined(MACHINE_bmalta)
48#define _putchar(ch) yamon_putchar((ch))
49typedef void (**yamon_print_count_ptr_t)(uint32_t, const char *, uint32_t);
50yamon_print_count_ptr_t yamon_print_count =
51 (yamon_print_count_ptr_t) YAMON_SUBR_PRINT_COUNT;
52
53static void yamon_putchar(char ch)
54{
55 (*yamon_print_count)(0, &ch, 1);
56}
57#endif
58
59void putuchar(const char32_t ch)
60{
61 if (ascii_check(ch))
62 _putchar(ch);
63 else
64 _putchar('?');
65}
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