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4f8d4a38 DD |
1 | /* misc.c --- miscellaneous utility functions for RX simulator. |
2 | ||
dc3cf14f | 3 | Copyright (C) 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
4f8d4a38 DD |
4 | Contributed by Red Hat, Inc. |
5 | ||
6 | This file is part of the GNU simulators. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | ||
22 | #include <stdio.h> | |
23 | ||
24 | #include "cpu.h" | |
25 | #include "misc.h" | |
26 | ||
27 | int | |
28 | bcd2int (int bcd, int w) | |
29 | { | |
30 | int v = 0, m = 1, i; | |
31 | for (i = 0; i < (w ? 4 : 2); i++) | |
32 | { | |
33 | v += (bcd % 16) * m; | |
34 | m *= 10; | |
35 | bcd /= 16; | |
36 | } | |
37 | return v; | |
38 | } | |
39 | ||
40 | int | |
41 | int2bcd (int v, int w) | |
42 | { | |
43 | int bcd = 0, m = 1, i; | |
44 | for (i = 0; i < (w ? 4 : 2); i++) | |
45 | { | |
46 | bcd += (v % 10) * m; | |
47 | m *= 16; | |
48 | v /= 10; | |
49 | } | |
50 | return bcd; | |
51 | } | |
52 | ||
53 | char * | |
54 | comma (unsigned int u) | |
55 | { | |
56 | static char buf[5][20]; | |
57 | static int bi = 0; | |
58 | int comma = 0; | |
59 | char *bp; | |
60 | ||
61 | bi = (bi + 1) % 5; | |
62 | bp = buf[bi] + 19; | |
63 | *--bp = 0; | |
64 | do | |
65 | { | |
66 | if (comma == 3) | |
67 | { | |
68 | *--bp = ','; | |
69 | comma = 0; | |
70 | } | |
71 | comma++; | |
72 | *--bp = '0' + (u % 10); | |
73 | u /= 10; | |
74 | } | |
75 | while (u); | |
76 | return bp; | |
77 | } |