| /******************************************************************************* |
| * |
| * Copyright (c) 1993 Intel Corporation |
| * |
| * Intel hereby grants you permission to copy, modify, and distribute this |
| * software and its documentation. Intel grants this permission provided |
| * that the above copyright notice appears in all copies and that both the |
| * copyright notice and this permission notice appear in supporting |
| * documentation. In addition, Intel grants this permission provided that |
| * you prominently mark as "not part of the original" any modifications |
| * made to this software or documentation, and that the name of Intel |
| * Corporation not be used in advertising or publicity pertaining to |
| * distribution of the software or the documentation without specific, |
| * written prior permission. |
| * |
| * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR |
| * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY |
| * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or |
| * representations regarding the use of, or the results of the use of, |
| * the software and documentation in terms of correctness, accuracy, |
| * reliability, currentness, or otherwise; and you rely on the software, |
| * documentation and results solely at your own risk. |
| * |
| * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, |
| * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES |
| * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM |
| * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. |
| * |
| ******************************************************************************/ |
| |
| .file "strcspn.s" |
| #ifdef __PIC |
| .pic |
| #endif |
| #ifdef __PID |
| .pid |
| #endif |
| /* |
| * (c) copyright 1989,1993 Intel Corp., all rights reserved |
| */ |
| |
| /* |
| procedure strcspn (optimized assembler version: 80960K series, 80960CA) |
| |
| len = strcspn (string, charset) |
| |
| Return the number of characters in the maximum leading segment |
| of string which consists solely of characters NOT from charset. |
| |
| At the time of this writing, only g0 thru g7 and g13 are available |
| for use in this leafproc; other registers would have to be saved and |
| restored. These nine registers, plus tricky use of g14 are sufficient |
| to implement the routine. |
| */ |
| |
| .globl _strcspn |
| .globl __strcspn |
| .leafproc _strcspn, __strcspn |
| .align 2 |
| |
| _strcspn: |
| #ifndef __PIC |
| lda Lrett,g14 |
| #else |
| lda Lrett-(.+8)(ip),g14 |
| #endif |
| __strcspn: |
| mov g14,g13 # save return address |
| lda (g0),g3 # copy string pointer |
| mov 0,g14 # conform to register conventions |
| |
| Lnext_char: |
| ldob (g3),g7 # fetch next character of string |
| addo 1,g1,g2 # g2 will be the charset ptr |
| ldob (g1),g6 # fetch first character of charset |
| cmpobe.f 0,g7,Lexit # quit if at end of string |
| Lscan_set: |
| cmpo g6,g7 # is charset char same as string char? |
| ldob (g2),g5 # fetch next charset char |
| addo 1,g2,g2 # bump charset ptr |
| be.f Lexit |
| cmpo g6,0 # is charset exhausted? |
| lda (g5),g6 |
| bne.t Lscan_set # check next character of charset |
| addo 1,g3,g3 # check next character of string |
| b Lnext_char |
| |
| Lexit: |
| subo g0,g3,g0 # compute string length |
| bx (g13) |
| Lrett: |
| ret |
| |
| /* end of strcspn */ |
