develop/open_watcom: Post-SVN tidy

- Move source code from `trunk` into program root directory. - Update build files. - Note: Line endings standardised from `CRLF` > `LF`, so best to view diffs with whitespace changes hidden.
2025-05-24 13:38:52 +01:00
parent 515d1e92ad
commit c8cc441230
460 changed files with 7547 additions and 7547 deletions
--- a/watcom/clib/cgsupp/fsc386.asm
+++ b/watcom/clib/cgsupp/fsc386.asm
@@ -0,0 +1,71 @@
+;*****************************************************************************
+;*
+;*                            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!
+;*
+;*****************************************************************************
+
+
+;<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+;<>
+;<> __FSC compares EAX with EDX
+;<>       if EAX > EDX,  1 is returned in EAX
+;<>       if EAX = EDX,  0 is returned in EAX
+;<>       if EAX < EDX, -1 is returned in EAX
+;<>
+;<>  =========    ===           =======
+;<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+include mdef.inc
+include struct.inc
+
+        modstart        fsc386
+
+        xdefp   __FSC
+
+        defpe   __FSC
+        _guess    have_cmp      ; guess - comparison done
+          xor     EAX,EDX       ; - check if signs differ
+          _if     ns            ; - if signs are the same
+            xor     EAX,EDX     ; - - restore EAX
+            sub     EAX,EDX     ; - - find difference, EAX=0 if equal
+            _quif   e,have_cmp  ; - - done if mantissas also equal
+                                ; - - carry=1 iff |EAX| < |EDX|
+            rcr     EAX,1       ; - - EAX sign set iff |EAX| < |EDX|
+            xor     EDX,EAX     ; - - EDX sign set iff EAX < EDX
+            not     EDX         ; - - EDX sign set iff EAX > EDX
+          _endif                ; - endif
+          sub     EAX,EAX       ; - clear result
+          _shl    EDX,1         ; - carry=1 iff EAX > EDX
+          adc     EAX,EAX       ; - EAX = 1 iff EAX > EDX, else EAX = 0
+          _shl    EAX,1         ; - EAX = 2 iff EAX > EDX, else EAX = 0
+          dec     EAX           ; - EAX = 1 iff EAX > EDX, else EAX = -1
+        _endguess               ; endguess
+        ret                     ; return with sign in EAX, conditions set
+        endproc __FSC
+
+        endmod
+        end