forked from KolibriOS/kolibrios
add fstatus.inc
git-svn-id: svn://kolibrios.org@702 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
parent
275695e8c3
commit
616f769298
@ -4,8 +4,8 @@ projectIdent
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VpeMain
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VpeMain
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1
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1
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WRect
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WRect
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32
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-32
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460
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330
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10304
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10304
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9950
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9950
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2
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2
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@ -32,8 +32,8 @@ WVList
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VComponent
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VComponent
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9
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9
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WRect
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WRect
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2496
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3384
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30
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580
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5712
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5712
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7390
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7390
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0
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0
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@ -42,8 +42,8 @@ WRect
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WFileName
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WFileName
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10
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10
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clib_r.tgt
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clib_r.tgt
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24
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0
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52
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0
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11
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11
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VComponent
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VComponent
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12
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12
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@ -59,5 +59,5 @@ WFileName
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7
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7
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crt.tgt
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crt.tgt
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0
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0
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29
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0
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11
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11
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@ -1,35 +0,0 @@
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/****************************************************************************
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*
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* Open Watcom Project
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*
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* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*
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* ========================================================================
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*
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* This file contains Original Code and/or Modifications of Original
|
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* Code as defined in and that are subject to the Sybase Open Watcom
|
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* Public License version 1.0 (the 'License'). You may not use this file
|
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* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
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* provided with the Original Code and Modifications, and is also
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* available at www.sybase.com/developer/opensource.
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*
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* The Original Code and all software distributed under the License are
|
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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||||||
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
|
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||||||
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
|
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||||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
|
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* NON-INFRINGEMENT. Please see the License for the specific language
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* governing rights and limitations under the License.
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*
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* ========================================================================
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*
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* Description: 80x87 related globals for OSI.
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*
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****************************************************************************/
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#include "variety.h"
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unsigned char _8087;
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unsigned char _real87;
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@ -270,7 +270,7 @@ extern void __chk8087( void )
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void __chk8087( void )
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void __chk8087( void )
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/********************/
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/********************/
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{
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{
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_RWD_real87 = 3; //387+ ; //__x87id();
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_RWD_real87 = __x87id();
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_RWD_8087 = _RWD_real87;
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_RWD_8087 = _RWD_real87;
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__init_8087();
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__init_8087();
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}
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}
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53
programs/develop/open watcom/trunk/clib/crt/cmodel.asm
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53
programs/develop/open watcom/trunk/clib/crt/cmodel.asm
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@ -0,0 +1,53 @@
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;*****************************************************************************
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;*
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;* Open Watcom Project
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;*
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;* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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;*
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;* ========================================================================
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;*
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;* This file contains Original Code and/or Modifications of Original
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;* Code as defined in and that are subject to the Sybase Open Watcom
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|
;* Public License version 1.0 (the 'License'). You may not use this file
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;* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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||||||
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;* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
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|
;* provided with the Original Code and Modifications, and is also
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;* available at www.sybase.com/developer/opensource.
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;*
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||||||
|
;* The Original Code and all software distributed under the License are
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||||||
|
;* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
||||||
|
;* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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||||||
|
;* 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
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||||||
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;* governing rights and limitations under the License.
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||||||
|
;*
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||||||
|
;* ========================================================================
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;*
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|
;* Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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;* DESCRIBE IT HERE!
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;*
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;*****************************************************************************
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include mdef.inc
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modstart cmodel
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if _MODEL and _BIG_CODE
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public _big_code_
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_big_code_ label far
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else
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public _small_code_
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_small_code_ label near
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endif
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;
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; This is here so that if both _small_code_ and _big_code_ get hauled
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; in from seperate libraries, the linker will complain about
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; CodeModelMismatch being redefined
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;
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public CodeModelMismatch
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CodeModelMismatch label near
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endmod
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end
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@ -153,7 +153,11 @@ static void callit( pfn *f ) {
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; eax==15 -> run init routines whose priority is <= 15
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; eax==15 -> run init routines whose priority is <= 15
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;
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;
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*/
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*/
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#if defined(M_I86)
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void _WCI86FAR __FInitRtns( unsigned limit ) {
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__InitRtns( limit );
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}
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#endif
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void __InitRtns( unsigned limit ) {
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void __InitRtns( unsigned limit ) {
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__type_rtp local_limit;
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__type_rtp local_limit;
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struct rt_init _WCI86NEAR *pnext;
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struct rt_init _WCI86NEAR *pnext;
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@ -175,13 +179,11 @@ void __InitRtns( unsigned limit ) {
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working_limit = local_limit;
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working_limit = local_limit;
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// walk list of routines
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// walk list of routines
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while( pcur < (struct rt_init _WCI86NEAR*)&_End_XI )
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while( pcur < (struct rt_init _WCI86NEAR*)&_End_XI ) {
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{
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// if this one hasn't been called
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// if this one hasn't been called
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if( pcur->rtn_type != PDONE ) {
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if( pcur->rtn_type != PDONE ) {
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// if the priority is better than best so far
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// if the priority is better than best so far
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if( pcur->priority <= working_limit )
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if( pcur->priority <= working_limit ) {
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{
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// remember this one
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// remember this one
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pnext = pcur;
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pnext = pcur;
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working_limit = pcur->priority;
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working_limit = pcur->priority;
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@ -224,9 +226,7 @@ void _WCI86FAR __FFiniRtns( unsigned min_limit, unsigned max_limit ) {
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__FiniRtns( min_limit, max_limit );
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__FiniRtns( min_limit, max_limit );
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}
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}
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#endif
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#endif
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void __FiniRtns( unsigned min_limit, unsigned max_limit ) {
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void __FiniRtns( unsigned min_limit, unsigned max_limit )
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{
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__type_rtp local_min_limit;
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__type_rtp local_min_limit;
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__type_rtp local_max_limit;
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__type_rtp local_max_limit;
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struct rt_init _WCI86NEAR *pnext;
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struct rt_init _WCI86NEAR *pnext;
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@ -41,26 +41,40 @@
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#include "initfini.h"
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#include "initfini.h"
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#include "initarg.h"
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#include "initarg.h"
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void _cdecl mf_init();
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void _stdcall InitHeap(int heap_size);
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void _stdcall InitHeap(int heap_size);
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int __appcwdlen;
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int __appcwdlen;
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char* __appcwd;
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char* __appcwd;
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extern char *LpCmdLine;
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extern char *LpPgmName;
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_WCRTLINK void (*__process_fini)(unsigned,unsigned) = 0;
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_WCRTLINK void (*__process_fini)(unsigned,unsigned) = 0;
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#ifdef __SW_BR
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_WCRTLINK extern void (*__process_fini)( unsigned, unsigned );
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extern void __CommonInit( void );
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extern void __CommonInit( void );
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extern int wmain( int, wchar_t ** );
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extern int wmain( int, wchar_t ** );
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extern int main( int, char ** );
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extern int main( int, char ** );
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extern char *LpCmdLine;
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#else
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extern char *LpPgmName;
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extern void __NTMainInit( void *, void * );
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#ifdef __WIDECHAR__
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extern void __wCMain( void );
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#if defined(_M_IX86)
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#pragma aux __wCMain "*"
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#endif
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#else
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extern void __CMain( void );
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#if defined(_M_IX86)
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#pragma aux __CMain "*"
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#endif
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#endif
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extern unsigned __ThreadDataSize;
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#endif
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void __F_NAME(__NTMain,__wNTMain)( void )
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void __F_NAME(__NTMain,__wNTMain)( void )
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/***************************************/
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/***************************************/
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{
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{
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InitHeap(32*1024*1024);
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InitHeap(0);
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//mf_init();
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__process_fini = &__FiniRtns;
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__process_fini = &__FiniRtns;
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__InitRtns( 255 );
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__InitRtns( 255 );
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122
programs/develop/open watcom/trunk/clib/fpu/chipw32.asm
Normal file
122
programs/develop/open watcom/trunk/clib/fpu/chipw32.asm
Normal file
@ -0,0 +1,122 @@
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;*****************************************************************************
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||||||
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;*
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||||||
|
;* Open Watcom Project
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||||||
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;*
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||||||
|
;* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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||||||
|
;*
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||||||
|
;* ========================================================================
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||||||
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;*
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||||||
|
;* This file contains Original Code and/or Modifications of Original
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||||||
|
;* 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.
|
||||||
|
;*
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||||||
|
;* 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!
|
||||||
|
;*
|
||||||
|
;*****************************************************************************
|
||||||
|
|
||||||
|
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||||||
|
; static char sccs_id[] = "@(#)wrap32.asm 1.1 12/15/94 15:56:32";
|
||||||
|
;
|
||||||
|
; This code is being published by Intel to users of the Pentium(tm)
|
||||||
|
; processor. Recipients are authorized to copy, modify, compile, use and
|
||||||
|
; distribute the code.
|
||||||
|
;
|
||||||
|
; Intel makes no warranty of any kind with regard to this code, including
|
||||||
|
; but not limited to, implied warranties or merchantability and fitness for
|
||||||
|
; a particular purpose. Intel assumes no responsibility for any errors that
|
||||||
|
; may appear in this code.
|
||||||
|
;
|
||||||
|
; No patent licenses are granted, express or implied.
|
||||||
|
;
|
||||||
|
;
|
||||||
|
; The following code is a PRELIMINARY IMPLEMENTATION of a
|
||||||
|
; software patch for the FPATAN instruction replacement.
|
||||||
|
;
|
||||||
|
;
|
||||||
|
include mdef.inc
|
||||||
|
|
||||||
|
.386
|
||||||
|
.387
|
||||||
|
|
||||||
|
DATA32 SEGMENT DWORD USE32 PUBLIC 'DATA'
|
||||||
|
|
||||||
|
|
||||||
|
FPU_STATE STRUC
|
||||||
|
CONTROL_WORD DW ?
|
||||||
|
reserved_1 DW ?
|
||||||
|
STATUS_WORD DW ?
|
||||||
|
reserved_2 DW ?
|
||||||
|
TAG_WORD DW ?
|
||||||
|
reserved_3 DW ?
|
||||||
|
IP_OFFSET DD ?
|
||||||
|
CS_SLCT DW ?
|
||||||
|
OPCODE DW ?
|
||||||
|
DATA_OFFSET DD ?
|
||||||
|
OPERAND_SLCT DW ?
|
||||||
|
reserved_4 DW ?
|
||||||
|
REGISTER_0 DT ?
|
||||||
|
REGISTER_1 DT ?
|
||||||
|
REGISTER_2 DT ?
|
||||||
|
REGISTER_3 DT ?
|
||||||
|
REGISTER_4 DT ?
|
||||||
|
REGISTER_5 DT ?
|
||||||
|
REGISTER_6 DT ?
|
||||||
|
REGISTER_7 DT ?
|
||||||
|
SAVE_REG_0 DT ?
|
||||||
|
FPU_STATE ENDS
|
||||||
|
|
||||||
|
ENV_SIZE EQU 118
|
||||||
|
|
||||||
|
DATA32 ENDS
|
||||||
|
|
||||||
|
DGROUP GROUP DATA32
|
||||||
|
|
||||||
|
|
||||||
|
_TEXT SEGMENT DWORD USE32 PUBLIC 'CODE'
|
||||||
|
|
||||||
|
|
||||||
|
assume cs:_TEXT, ds:DGROUP, es:DGROUP, ss:nothing
|
||||||
|
public __fpatan_wrap
|
||||||
|
|
||||||
|
;
|
||||||
|
; PRELIMINARY VERSION for FPATAN instruction replacement
|
||||||
|
;
|
||||||
|
|
||||||
|
EXTRN __fpatan_chk:NEAR
|
||||||
|
|
||||||
|
defpe __fpatan_wrap
|
||||||
|
push eax
|
||||||
|
sub esp, ENV_SIZE
|
||||||
|
fstp tbyte ptr [esp].SAVE_REG_0
|
||||||
|
fnsave [esp]
|
||||||
|
fld tbyte ptr [esp].REGISTER_0
|
||||||
|
fld tbyte ptr [esp].SAVE_REG_0
|
||||||
|
call __fpatan_chk
|
||||||
|
fstsw ax
|
||||||
|
fstp tbyte ptr [esp].REGISTER_0
|
||||||
|
and ax, 0ffh
|
||||||
|
or ax, [esp].STATUS_WORD
|
||||||
|
mov [esp].STATUS_WORD, ax
|
||||||
|
frstor [esp]
|
||||||
|
add esp, ENV_SIZE
|
||||||
|
pop eax
|
||||||
|
ret
|
||||||
|
__fpatan_wrap ENDP
|
||||||
|
|
||||||
|
_TEXT ENDS
|
||||||
|
end
|
50
programs/develop/open watcom/trunk/clib/fpu/env387.inc
Normal file
50
programs/develop/open watcom/trunk/clib/fpu/env387.inc
Normal file
@ -0,0 +1,50 @@
|
|||||||
|
;*****************************************************************************
|
||||||
|
;*
|
||||||
|
;* 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!
|
||||||
|
;*
|
||||||
|
;*****************************************************************************
|
||||||
|
|
||||||
|
|
||||||
|
; Define 80387 environment:
|
||||||
|
; ========================
|
||||||
|
;
|
||||||
|
; ---------------<--- offsets relative to here
|
||||||
|
; | | stack grows
|
||||||
|
; | | this way
|
||||||
|
; | | /|\
|
||||||
|
; | | |
|
||||||
|
; | |
|
||||||
|
; ---------------
|
||||||
|
|
||||||
|
ENV_SIZE equ 28 ; size of buffer required for 80387 environment
|
||||||
|
|
||||||
|
ENV_CW equ 0 ; control word
|
||||||
|
ENV_SW equ 4 ; status word
|
||||||
|
ENV_TW equ 8 ; tag word
|
||||||
|
ENV_IP equ 12 ; instruction pointer
|
||||||
|
ENV_OP equ 20 ; operand pointer
|
374
programs/develop/open watcom/trunk/clib/fpu/fpeinth.asm
Normal file
374
programs/develop/open watcom/trunk/clib/fpu/fpeinth.asm
Normal file
@ -0,0 +1,374 @@
|
|||||||
|
;*****************************************************************************
|
||||||
|
;*
|
||||||
|
;* 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: 80x87 interrupt handler.
|
||||||
|
;*
|
||||||
|
;*****************************************************************************
|
||||||
|
|
||||||
|
|
||||||
|
;;; //e:\watcom\src\bld\watcom\h;E:\WATCOM\H;E:\WATCOM\H\NT
|
||||||
|
|
||||||
|
.8087
|
||||||
|
.386p
|
||||||
|
|
||||||
|
include struct.inc
|
||||||
|
include mdef.inc
|
||||||
|
include stword.inc
|
||||||
|
include env387.inc
|
||||||
|
include fstatus.inc
|
||||||
|
|
||||||
|
ifndef __NETWARE__
|
||||||
|
xref __GETDS
|
||||||
|
endif
|
||||||
|
xref __8087 ; indicate that NDP instructions are present
|
||||||
|
|
||||||
|
modstart fpeinth
|
||||||
|
|
||||||
|
datasegment
|
||||||
|
|
||||||
|
extrn __FPE_exception_: proc
|
||||||
|
extrn "C",_STACKLOW : dword
|
||||||
|
|
||||||
|
TInf db 00h,00h,00h,00h,00h,00h,00h,80h,0ffh,7fh
|
||||||
|
F8Inf db 0ffh,0ffh,0ffh,0ffh,0ffh,0ffh,0efh,7fh
|
||||||
|
F4Inf db 0ffh,0ffh,7fh,7fh
|
||||||
|
db 512 dup(0)
|
||||||
|
FPEStk label byte
|
||||||
|
SaveSS dw 0
|
||||||
|
SaveESP dd 0
|
||||||
|
enddata
|
||||||
|
|
||||||
|
|
||||||
|
; Interrupt handler for 80x87 exceptions.
|
||||||
|
|
||||||
|
xdefp __FPEHandler_
|
||||||
|
defp __FPEHandler_
|
||||||
|
public "C",__FPEHandlerStart_
|
||||||
|
__FPEHandlerStart_ label byte
|
||||||
|
push EAX ; save reg
|
||||||
|
mov AL,20h ; issue EOI to 8259 controller
|
||||||
|
out 20h,AL ; ...
|
||||||
|
out 0a0h,AL ; issue EOI to slave 8259
|
||||||
|
xor AX,AX ; clear busy signal
|
||||||
|
out 0f0h,AL ; ...
|
||||||
|
pop EAX ; restore regs
|
||||||
|
public __FPE2Handler_
|
||||||
|
__FPE2Handler_ label byte
|
||||||
|
push EAX ; save regs
|
||||||
|
push EBX ; ...
|
||||||
|
push ECX ; ...
|
||||||
|
push EDX ; ...
|
||||||
|
push ESI ; ...
|
||||||
|
push EDI ; ...
|
||||||
|
push EBP ; ...
|
||||||
|
push DS ; ...
|
||||||
|
push ES ; ...
|
||||||
|
sub ESP,ENV_SIZE ; make room for environment information
|
||||||
|
mov EBP,ESP ; point to buffer for 80x87 environment
|
||||||
|
fnstenv [EBP] ; get 80x87 environment
|
||||||
|
fwait ; wait for 80x87
|
||||||
|
fdisi ; disable interrupts
|
||||||
|
sti ; enable CPU interrupts
|
||||||
|
ifndef __NETWARE__
|
||||||
|
; call __GETDS ; load DS
|
||||||
|
endif
|
||||||
|
ifdef __NETWARE__
|
||||||
|
; push SS ; load DS
|
||||||
|
; pop DS ; ...
|
||||||
|
endif
|
||||||
|
mov EDX,ENV_CW[EBP] ; get control word
|
||||||
|
not EDX ; flip the mask bits
|
||||||
|
mov DH,0FFh ; turn on top byte
|
||||||
|
and EDX,ENV_SW[EBP] ; get status word
|
||||||
|
; mov ES,ENV_IP+4[EBP] ; get intruction address
|
||||||
|
mov EDI,ENV_IP[EBP] ; ...
|
||||||
|
opcode: mov BX,[EDI] ; get opcode
|
||||||
|
inc EDI ; point to next opcode
|
||||||
|
cmp BL,0d8h ; check if its the opcode
|
||||||
|
jb opcode ; ...
|
||||||
|
cmp BL,0dfh ; ...
|
||||||
|
ja opcode ; ...
|
||||||
|
; mov ES,ENV_OP+4[EBP] ; get pointer to operand
|
||||||
|
mov EDI,ENV_OP[EBP] ; ...
|
||||||
|
xchg BL,BH ; get opcode in right position
|
||||||
|
mov CL,FPE_OK ; assume exception to be ignored
|
||||||
|
_guess ; guess precision exception
|
||||||
|
test DL,ST_EF_PR ; - check for precision exception
|
||||||
|
_quif e ; - quit if not precision exception
|
||||||
|
mov CL,FPE_INEXACT ; - indicate precision exception
|
||||||
|
_admit ; guess stack under/overflow
|
||||||
|
test DL,ST_EF_SF ; - check for stack under/overflow
|
||||||
|
_quif e ; - quit if not stack under/overflow
|
||||||
|
test DX,ST_C1 ; - check if underflow
|
||||||
|
_if e ; - if underflow
|
||||||
|
mov CL,FPE_STACKUNDERFLOW ; - - indicate stack underflow
|
||||||
|
_else ; - else
|
||||||
|
mov CL,FPE_STACKOVERFLOW ; - - indicate stack overflow
|
||||||
|
_endif ; - endif
|
||||||
|
_admit ; guess invalid operation
|
||||||
|
test DL,ST_EF_IO ; - check for invalid operation
|
||||||
|
_quif e ; - quit if not invalid operation
|
||||||
|
call InvalidOp ; - process invalid operation
|
||||||
|
_admit ; guess denormal operand
|
||||||
|
test DL,ST_EF_DO ; - check for denormal operand
|
||||||
|
_quif e ; - quit if not denormal operand
|
||||||
|
mov CL,FPE_DENORMAL ; - indicate underflow
|
||||||
|
_admit ; guess overflow
|
||||||
|
test DL,ST_EF_OF ; - check for overflow
|
||||||
|
_quif e ; - quit if not overflow
|
||||||
|
call KOOverFlow ; - process overflow exception
|
||||||
|
mov CL,FPE_OVERFLOW ; - set floating point error code
|
||||||
|
_admit ; guess underflow
|
||||||
|
test DL,ST_EF_UF ; - check for underflow
|
||||||
|
_quif e ; - quit if not underflow
|
||||||
|
mov CL,FPE_UNDERFLOW ; - indicate underflow
|
||||||
|
_admit ; guess divide by 0
|
||||||
|
test DL,ST_EF_ZD ; - check for divide by zero
|
||||||
|
_quif e ; - quit if not divide by zero
|
||||||
|
call GetInf ; - process divide by zero
|
||||||
|
mov CL,FPE_ZERODIVIDE ; - indicate divide by zero
|
||||||
|
_endguess ; endguess
|
||||||
|
_guess ; guess exception to be handled
|
||||||
|
cmp CL,FPE_OK ; - check if exception allowed
|
||||||
|
_quif e ; - quit if exception not allowed
|
||||||
|
; cmp SaveSS,0 ; - check if already in handler
|
||||||
|
; _quif ne ; - quit if already in handler
|
||||||
|
push _STACKLOW ; - save old stack low
|
||||||
|
mov SaveSS,SS ; - save current stack pointer
|
||||||
|
mov SaveESP,ESP ; - ...
|
||||||
|
push DS ; - get new stack pointer
|
||||||
|
pop SS ; - ...
|
||||||
|
lea ESP,FPEStk ; - ...
|
||||||
|
lea EAX,FPEStk-512 ; - set stack low variable
|
||||||
|
mov _STACKLOW,EAX ; - set stack low variable
|
||||||
|
movzx EAX,CL ; - set floating point status
|
||||||
|
call __FPE_exception_ ; - call user's handler
|
||||||
|
mov SS,SaveSS ; - restore stack pointer
|
||||||
|
mov ESP,SaveESP ; - ...
|
||||||
|
pop _STACKLOW ; - restore old stacklow
|
||||||
|
mov SaveSS,0 ; - indicate handler can be re-entered
|
||||||
|
_endguess ; endguess
|
||||||
|
fclex ; clear exceptions that may have
|
||||||
|
; occurred as a result of handling the
|
||||||
|
; exception
|
||||||
|
and word ptr ENV_CW[EBP],0FF72h
|
||||||
|
fldcw word ptr ENV_CW[EBP] ; enable interrupts
|
||||||
|
fwait ; ...
|
||||||
|
add ESP,ENV_SIZE ; clean up stack
|
||||||
|
pop ES ; restore registers
|
||||||
|
pop DS ; ...
|
||||||
|
pop EBP ; ...
|
||||||
|
pop EDI ; ...
|
||||||
|
pop ESI ; ...
|
||||||
|
pop EDX ; ...
|
||||||
|
pop ECX ; ...
|
||||||
|
pop EBX ; ...
|
||||||
|
pop EAX ; ...
|
||||||
|
iretd ; return from interrupt handler
|
||||||
|
public "C",__FPEHandlerEnd_
|
||||||
|
__FPEHandlerEnd_ label byte
|
||||||
|
endproc __FPEHandler_
|
||||||
|
|
||||||
|
|
||||||
|
; Process invalid operation.
|
||||||
|
|
||||||
|
InvalidOp proc near
|
||||||
|
mov CL,FPE_INVALID ; assume invalid operation
|
||||||
|
_guess ; guess it's square root
|
||||||
|
cmp BX,0D9FAh ; - ...
|
||||||
|
_quif ne ; - quit if it's not that instruction
|
||||||
|
mov CL,FPE_SQRTNEG ; - indicate sqrt(negative number)
|
||||||
|
ret ; - return
|
||||||
|
_endguess ; endguess
|
||||||
|
_guess ; guess it's square root
|
||||||
|
cmp BX,0D9F1h ; - ...
|
||||||
|
_quif ne ; - quit if it's not that instruction
|
||||||
|
mov CL,FPE_LOGERR ; - indicate sqrt(negative number)
|
||||||
|
ret ; - return
|
||||||
|
_endguess ; endguess
|
||||||
|
_guess ; guess: 'fprem' instruction
|
||||||
|
cmp BX,0D9F8h ; - check for 'fprem' 10-may-90
|
||||||
|
_if ne ; - if not 'fprem'
|
||||||
|
cmp BX,0D9F5h ; - - check for 'fprem1'
|
||||||
|
_endif ; - endif
|
||||||
|
_quif ne ; - quit if not 'fprem' or 'fprem1'
|
||||||
|
mov CL,FPE_MODERR ; - indicate mod(negative number)
|
||||||
|
_admit ; guess: integer overflow
|
||||||
|
mov DX,BX ; - save op code
|
||||||
|
and DX,0310h ; - check for fist/fistp instruction
|
||||||
|
cmp DX,0310h ; - ...
|
||||||
|
_quif ne ; - quit if its not that instruction
|
||||||
|
mov CL,FPE_IOVERFLOW ; - indicate integer overflow
|
||||||
|
_admit ; guess it's floating point underflow
|
||||||
|
;; mov DX,BX ; - save op code
|
||||||
|
and DX,0110h ; - check if fst or fstp instruction
|
||||||
|
cmp DX,0110h ; - ...
|
||||||
|
_quif ne ; - quit if it's not that instruction
|
||||||
|
; Destination is short or long real and source register is an unnormal
|
||||||
|
; with exponent in range.
|
||||||
|
fstp st(0) ; - pop old result
|
||||||
|
fldz ; - load zero
|
||||||
|
mov DL,BL ; - save op code
|
||||||
|
and DL,0C0h ; - check the MOD bits of instruction
|
||||||
|
cmp DL,0C0h ; - ...
|
||||||
|
_if ne ; - if result to be placed in memory
|
||||||
|
call Store ; - - store result in memory
|
||||||
|
_endif ; - endif
|
||||||
|
test BL,08h ; - check if result to be popped
|
||||||
|
_if ne ; - if result to be popped
|
||||||
|
fstp st(0) ; - - pop the result
|
||||||
|
_endif ; - endif
|
||||||
|
mov CL,FPE_UNDERFLOW ; - indicate underflow
|
||||||
|
_admit ; guess it's divide
|
||||||
|
mov DX,BX ; - save op code
|
||||||
|
and DX,0130h ; - check for fdiv/fidiv instruction
|
||||||
|
cmp DX,0030h ; - ...
|
||||||
|
_quif ne ; - quit if it's not that instruction
|
||||||
|
mov DX,ENV_TW[EBP] ; - get tag word
|
||||||
|
mov CL,AH ; - get stack pointer
|
||||||
|
and CL,38h ; - ...
|
||||||
|
shr CL,2 ; - ...
|
||||||
|
ror DX,CL ; - make stack top low order bits
|
||||||
|
and DL,05h ; - check if top two elements are 0
|
||||||
|
cmp DL,05h ; - ...
|
||||||
|
_quif ne ; - quif if they are not 0
|
||||||
|
mov CL,FPE_ZERODIVIDE ; - indicate divide by zero
|
||||||
|
_endguess ; endguess
|
||||||
|
ret
|
||||||
|
endproc InvalidOp
|
||||||
|
|
||||||
|
|
||||||
|
; Process overflow exception (note that only floating point overflows
|
||||||
|
; are handled - integer overflows are invalid operations).
|
||||||
|
|
||||||
|
KOOverFlow proc near
|
||||||
|
_guess ; guess: fscale instruction 10-may-90
|
||||||
|
cmp BX,0D9FDh ; - quit if not 'fscale' instruction
|
||||||
|
_quif ne ; - ...
|
||||||
|
_admit ; guess: fst/fstp instruction
|
||||||
|
mov DX,BX ; - save op code
|
||||||
|
and DX,0110h ; - check if fst or fstp instruction
|
||||||
|
cmp DX,0110h ; - ...
|
||||||
|
_quif ne ; - quit if not an fst/fstp instr.
|
||||||
|
call GetInf ; - load infinity
|
||||||
|
mov DL,BL ; - save op code
|
||||||
|
and DL,0C0h ; - check the MOD bits of instruction
|
||||||
|
cmp DL,0C0h ; - ...
|
||||||
|
_if ne ; - if result to be placed in memory
|
||||||
|
call Store ; - - store infinity
|
||||||
|
_endif ; - endif
|
||||||
|
test BL,08h ; - check if result to be popped
|
||||||
|
_if ne ; - if result to be popped
|
||||||
|
fstp st(0) ; - - pop result
|
||||||
|
_endif ; - endif
|
||||||
|
_admit ; admit arithmetic operation
|
||||||
|
mov DL,BL ; - save op code
|
||||||
|
and DL,0C0h ; - check if both operands on stack
|
||||||
|
cmp DL,0C0h ; - ...
|
||||||
|
_quif ne ; - quif both operands not on stack
|
||||||
|
;
|
||||||
|
; This code handles overflow on the following intructions:
|
||||||
|
; fxxx ST,ST(i)
|
||||||
|
; fxxx ST(i),ST where xxx is one of mul,div,sub or add
|
||||||
|
; fxxxp ST(i),ST
|
||||||
|
;
|
||||||
|
lea ESI,TInf ; - load internal infinity
|
||||||
|
call Load ; - ...
|
||||||
|
_admit ; admit
|
||||||
|
;
|
||||||
|
; This admit block is to handle overflow on the following intructions:
|
||||||
|
; fxxx short real
|
||||||
|
; fxxx long real where xxx is one of mul,div,sub or add
|
||||||
|
;
|
||||||
|
call GetInf ; - load infinity
|
||||||
|
_endguess ; endguess
|
||||||
|
ret ; return
|
||||||
|
endproc KOOverFlow
|
||||||
|
|
||||||
|
|
||||||
|
; Replace the top element of the stack with the appropriate signed
|
||||||
|
; infinity.
|
||||||
|
|
||||||
|
GetInf proc near
|
||||||
|
ftst ; get sign of result
|
||||||
|
fstsw word ptr ENV_OP[EBP]
|
||||||
|
fstp st(0) ; pop argument off stack (does fwait)
|
||||||
|
test BH,04h ; check if single or double
|
||||||
|
_if ne ; if double
|
||||||
|
fld qword ptr F8Inf ; - load double precision infinity
|
||||||
|
_else ; else
|
||||||
|
fld dword ptr F4Inf ; - load single precision infinity
|
||||||
|
_endif ; endif
|
||||||
|
test word ptr ENV_OP[EBP],ST_C0
|
||||||
|
_if ne ; if argument is negative
|
||||||
|
fchs ; - return negative infinity
|
||||||
|
_endif ; endif
|
||||||
|
ret ; return
|
||||||
|
endproc GetInf
|
||||||
|
|
||||||
|
|
||||||
|
; Replace an element on the stack with internal zero or infinity.
|
||||||
|
|
||||||
|
Load proc near
|
||||||
|
test BH,04h ; check if result is top element
|
||||||
|
_if e ; if result is not top element
|
||||||
|
mov DL,0 ; - indicate we are at the top
|
||||||
|
_else ; else
|
||||||
|
mov DL,BL ; - get st(i)
|
||||||
|
and DL,07h ; - . . .
|
||||||
|
_endif ; endif
|
||||||
|
push EDX ; save st(i)
|
||||||
|
_loop ; loop
|
||||||
|
dec DL ; - decrement counter
|
||||||
|
_quif l ; - quit if we are at st(i)
|
||||||
|
fincstp ; - increment stack pointer
|
||||||
|
_endloop ; endloop
|
||||||
|
fstp st(0) ; free the stack element
|
||||||
|
fld tbyte ptr [ESI] ; load internal zero
|
||||||
|
pop EDX ; get st(i)
|
||||||
|
_loop ; loop
|
||||||
|
dec DL ; - decrement counter
|
||||||
|
_quif l ; - quit if we are at st(i)
|
||||||
|
fdecstp ; - decrement stack pointer
|
||||||
|
_endloop ; endloop
|
||||||
|
ret ; return
|
||||||
|
endproc Load
|
||||||
|
|
||||||
|
|
||||||
|
; Store the top element of the stack at ES:EDI.
|
||||||
|
|
||||||
|
Store proc near
|
||||||
|
test BH,04h
|
||||||
|
_if ne ; if double
|
||||||
|
fst qword ptr ES:[EDI] ; - store as double precision result
|
||||||
|
_else ; else
|
||||||
|
fst dword ptr ES:[EDI] ; - store as single precision result
|
||||||
|
_endif ; endif
|
||||||
|
ret ; return
|
||||||
|
endproc Store
|
||||||
|
|
||||||
|
endmod
|
||||||
|
end
|
47
programs/develop/open watcom/trunk/clib/h/fstatus.inc
Normal file
47
programs/develop/open watcom/trunk/clib/h/fstatus.inc
Normal file
@ -0,0 +1,47 @@
|
|||||||
|
;*****************************************************************************
|
||||||
|
;*
|
||||||
|
;* 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!
|
||||||
|
;*
|
||||||
|
;*****************************************************************************
|
||||||
|
|
||||||
|
|
||||||
|
FPE_OK equ 0
|
||||||
|
FPE_INVALID equ 81h
|
||||||
|
FPE_DENORMAL equ 82h
|
||||||
|
FPE_ZERODIVIDE equ 83h
|
||||||
|
FPE_OVERFLOW equ 84h
|
||||||
|
FPE_UNDERFLOW equ 85h
|
||||||
|
FPE_INEXACT equ 86h
|
||||||
|
FPE_UNEMULATED equ 87h
|
||||||
|
FPE_SQRTNEG equ 88h
|
||||||
|
FPE_STACKOVERFLOW equ 8ah
|
||||||
|
FPE_STACKUNDERFLOW equ 8bh
|
||||||
|
FPE_EXPLICITGEN equ 8ch
|
||||||
|
FPE_IOVERFLOW equ 8dh
|
||||||
|
FPE_LOGERR equ 8eh
|
||||||
|
FPE_MODERR equ 8fh
|
88
programs/develop/open watcom/trunk/clib/h/stword.inc
Normal file
88
programs/develop/open watcom/trunk/clib/h/stword.inc
Normal file
@ -0,0 +1,88 @@
|
|||||||
|
;*****************************************************************************
|
||||||
|
;*
|
||||||
|
;* 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!
|
||||||
|
;*
|
||||||
|
;*****************************************************************************
|
||||||
|
|
||||||
|
|
||||||
|
; Define 8087 status word:
|
||||||
|
; ========================
|
||||||
|
|
||||||
|
ST_EF_IO equ 0001h ; invalid operation
|
||||||
|
ST_EF_DO equ 0002h ; denormalized operand
|
||||||
|
ST_EF_ZD equ 0004h ; zero divide
|
||||||
|
ST_EF_OF equ 0008h ; overflow flag
|
||||||
|
ST_EF_UF equ 0010h ; underflow flag
|
||||||
|
ST_EF_PR equ 0020h ; precision
|
||||||
|
ST_EF_SF equ 0040h ; stack under/overflow
|
||||||
|
ST_EF_ES equ 0080h ; error summary
|
||||||
|
|
||||||
|
ST_C0 equ 0100h ; condition code 0
|
||||||
|
ST_C1 equ 0200h ; condition code 1
|
||||||
|
ST_C2 equ 0400h ; condition code 2
|
||||||
|
ST_C3 equ 4000h ; condition code 3
|
||||||
|
|
||||||
|
ST_IR equ 0080h ; interrupt request
|
||||||
|
|
||||||
|
ST_ST equ 3800h ; stack top
|
||||||
|
|
||||||
|
ST_BF equ 8000h ; busy flag
|
||||||
|
|
||||||
|
; Define 8087 control word:
|
||||||
|
; =========================
|
||||||
|
|
||||||
|
; Exception masks (1 = exception masked)
|
||||||
|
CW_IM equ 0001h ; invalid operation
|
||||||
|
CW_DM equ 0002h ; denormalized operand
|
||||||
|
CW_ZM equ 0004h ; zero divide
|
||||||
|
CW_OM equ 0008h ; overflow
|
||||||
|
CW_UM equ 0010h ; underflow
|
||||||
|
CW_PM equ 0020h ; precision
|
||||||
|
|
||||||
|
; reserved - xxx0 0000 0x00 0000
|
||||||
|
CW_RESERVE equ 0e040h ; RESERVED
|
||||||
|
|
||||||
|
; interrupt enable mask 0000 0000 x000 0000
|
||||||
|
CW_IEM_EN equ 0000h ; enabled
|
||||||
|
CW_IEM_DIS equ 0080h ; disabled
|
||||||
|
|
||||||
|
CW_PC_MASK equ 0fcffh ; precision control - 0000 00xx 0000 0000
|
||||||
|
CW_PC_64 equ 0300h ; precision control - 64 bits
|
||||||
|
CW_PC_53 equ 0200h ; precision control - 53 bits
|
||||||
|
CW_PC_RES equ 0100h ; precision control - reserved
|
||||||
|
CW_PC_24 equ 0000h ; precision control - 24 bits
|
||||||
|
|
||||||
|
CW_RC_MASK equ 0f3ffh ; round control - 0000 xx00 0000 0000
|
||||||
|
CW_RC_CHOP equ 0c00h ; round control - chop
|
||||||
|
CW_RC_UP equ 0800h ; round control - round up
|
||||||
|
CW_RC_DOWN equ 0400h ; round control - round down
|
||||||
|
CW_RC_NEAR equ 0000h ; round control - round nearest
|
||||||
|
|
||||||
|
; infinity control - 000x 0000 0000 0000
|
||||||
|
CW_IC_PROJ equ 0000h ; projective
|
||||||
|
CW_IC_AFF equ 1000h ; affine
|
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user