projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 586c39b1 DF |
1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California. | |
| 493b70ca KB |
3 | * All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| f4f66d2c KB |
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. | |
| 586c39b1 DF |
16 | */ |
| 17 | ||
| f4f66d2c KB |
18 | #if defined(LIBC_SCCS) && !defined(lint) |
| 19 | .asciz "@(#)bcmp.s 5.5 (Berkeley) %G%" | |
| 20 | #endif /* LIBC_SCCS and not lint */ | |
| 586c39b1 | 21 | |
| af1b5230 SL |
22 | /* bcmp(s1, s2, n) */ |
| 23 | ||
| 24 | #include "DEFS.h" | |
| 25 | ||
| dadab5a2 | 26 | ENTRY(bcmp, 0) |
| 6d33fe28 KM |
27 | movl 4(ap),r1 |
| 28 | movl 8(ap),r3 | |
| 29 | movl 12(ap),r4 | |
| 30 | 1: | |
| 31 | movzwl $65535,r0 | |
| 32 | cmpl r4,r0 | |
| 33 | jleq 2f | |
| 34 | subl2 r0,r4 | |
| 35 | cmpc3 r0,(r1),(r3) | |
| 36 | jeql 1b | |
| 37 | addl2 r4,r0 | |
| 38 | ret | |
| 39 | 2: | |
| 40 | cmpc3 r4,(r1),(r3) | |
| af1b5230 | 41 | ret |