Clib string & memory functions

git-svn-id: svn://kolibrios.org@553 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-06-26 00:54:22 +00:00
parent d5f66e011c
commit 836c97f0ac
162 changed files with 11855 additions and 0 deletions
--- a/watcom/trunk/clib/cgsupp/__copy.asm
+++ b/watcom/trunk/clib/cgsupp/__copy.asm
@@ -0,0 +1,68 @@
+;*****************************************************************************
+;*
+;*                            Open Watcom Project
+;*
+;*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
+;*
+;*  ========================================================================
+;*
+;*    This file contains Original Code and/or Modifications of Original
+;*    Code as defined in and that are subject to the Sybase Open Watcom
+;*    Public License version 1.0 (the 'License'). You may not use this file
+;*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
+;*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
+;*    provided with the Original Code and Modifications, and is also
+;*    available at www.sybase.com/developer/opensource.
+;*
+;*    The Original Code and all software distributed under the License are
+;*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+;*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
+;*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
+;*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
+;*    NON-INFRINGEMENT. Please see the License for the specific language
+;*    governing rights and limitations under the License.
+;*
+;*  ========================================================================
+;*
+;* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
+;*               DESCRIBE IT HERE!
+;*
+;*****************************************************************************
+
+
+;
+;  char *__COPY( char *dst, char *src, unsigned len );
+;
+;
+include mdef.inc
+
+        name    __copy
+_TEXT   segment use32 para public 'CODE'
+        assume  cs:_TEXT
+
+        public  __COPY
+        public  __COPY_
+
+__COPY  proc    near
+__COPY_ proc    near
+        push    edi                     ; save regs
+        push    esi                     ; ...
+        push    ecx                     ; ...
+        mov     edi,16+0[esp]           ; get dst
+        mov     esi,16+4[esp]           ; get src
+        mov     ecx,16+8[esp]           ; get len
+        mov     eax,edi                 ; return with dst ptr in eax
+        shr     ecx,2                   ; calc. # of dwords
+        rep     movsd                   ; do the copy
+        mov     ecx,16+8[esp]           ; get len
+        and     ecx,3                   ; plus extra bytes
+        rep     movsb                   ; do the copy
+        pop     ecx                     ; restore regs
+        pop     esi                     ; ...
+        pop     edi                     ; ...
+        ret     12                      ; return and remove parms
+__COPY_ endp
+__COPY  endp
+
+_TEXT   ends
+        end