119 lines
4.2 KiB
NASM
119 lines
4.2 KiB
NASM
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; Command & Conquer Red Alert(tm)
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; Copyright 2025 Electronic Arts Inc.
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;
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; This program is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation, either version 3 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;
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;***************************************************************************
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;** C O N F I D E N T I A L --- W E S T W O O D S T U D I O S **
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;***************************************************************************
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;* *
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;* Project Name : Get the Defines selectors *
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;* *
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;* File Name : FGETSEL.ASM *
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;* *
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;* Programmer : Jeff Wilson *
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;* *
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;* Start Date : March 28, 1994 *
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;* *
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;* Last Update : March 28, 1994 [] *
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;* *
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;*-------------------------------------------------------------------------*
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;* Functions: *
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;* GetDefaultSelectors -- Return the current default selectors. *
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;* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - *
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IDEAL
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P386
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MODEL USE32 FLAT
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GLOBAL GetDefaultSelectors :NEAR
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GLOBAL DataSelector :WORD
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GLOBAL ScreenSelector :WORD
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GLOBAL GraphicsSelector :WORD
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GLOBAL PspSelector :WORD
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GLOBAL EnvSelector :WORD
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GLOBAL DosMemSelector :WORD
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GLOBAL Fp1167Selector :WORD
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GLOBAL FpWeitekSelector :WORD
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GLOBAL FpCyrixSelector :WORD
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GLOBAL CodeSelector :WORD
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DATASEG
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; It is very important that this section remain untouch
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; is not really needed by Rational System but is here to
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; keep compatibility with the TNT dos extender.
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DataSelector dw 0
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ScreenSelector dw 0
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GraphicsSelector dw 0
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PspSelector dw 0
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EnvSelector dw 0
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DosMemSelector dw 0
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Fp1167Selector dw 0
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FpWeitekSelector dw 0
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FpCyrixSelector dw 0
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CodeSelector dw 0
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;============================================================================
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CODESEG
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;***************************************************************************
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;* GetDefaultSelectors -- Setup the defaults selector values to have the *
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;* Correct Descriptor table and IOPL. *
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;* *
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;* *
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;* *
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;* INPUT: NONE *
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;* *
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;* OUTPUT: *
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;* *
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;* WARNINGS: *
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;* *
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;* HISTORY: *
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;* 03/28/1994 jaw: Created. *
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;*=========================================================================*
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PROC GetDefaultSelectors C near
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USES eax,esi,ecx
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lea edi,[DataSelector]
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lea ecx,[CodeSelector]
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sub ecx,edi
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shr ecx,1
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mov ax,ds
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rep stosw
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mov ax,cs
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mov [word ptr CodeSelector] , ax
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ret
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;====================
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ENDP GetDefaultSelectors
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END
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