| 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 |