1 /* misc.c --- miscellaneous utility functions for M32C simulator. 2 3 Copyright (C) 2005-2014 Free Software Foundation, Inc. 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 } 78