1 /* 2 * Copyright (c) 1987 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #if defined(LIBC_SCCS) && !defined(lint) 19 static char sccsid[] = "@(#)bcmp.c 5.3 (Berkeley) 05/16/90"; 20 #endif /* LIBC_SCCS and not lint */ 21 22 #include <string.h> 23 24 /* 25 * bcmp -- vax cmpc3 instruction 26 */ 27 bcmp(b1, b2, length) 28 register char *b1, *b2; 29 register size_t length; 30 { 31 32 if (length == 0) 33 return(0); 34 do 35 if (*b1++ != *b2++) 36 break; 37 while (--length); 38 return(length); 39 } 40