141 lines
4.8 KiB
NASM
141 lines
4.8 KiB
NASM
|
;
|
|||
|
|
; Command & Conquer Red Alert(tm)
|
|||
|
|
; Copyright 2025 Electronic Arts Inc.
|
|||
|
|
;
|
|||
|
|
; This program is free software: you can redistribute it and/or modify
|
|||
|
|
; it under the terms of the GNU General Public License as published by
|
|||
|
|
; the Free Software Foundation, either version 3 of the License, or
|
|||
|
|
; (at your option) any later version.
|
|||
|
|
;
|
|||
|
|
; This program is distributed in the hope that it will be useful,
|
|||
|
|
; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|||
|
|
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|||
|
|
; GNU General Public License for more details.
|
|||
|
|
;
|
|||
|
|
; You should have received a copy of the GNU General Public License
|
|||
|
|
; along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|||
|
|
;
|
|||
|
|
|
|||
|
|
; $Header: g:/library/wwlib32/system/rcs/opsys.asm 1.1 1994/04/18 09:14:12 jeff_wilson Exp $
|
|||
|
|
;***************************************************************************
|
|||
|
|
;** C O N F I D E N T I A L --- W E S T W O O D A S S O C I A T E S **
|
|||
|
|
;***************************************************************************
|
|||
|
|
;* *
|
|||
|
|
;* Project Name : Operating System Flags *
|
|||
|
|
;* *
|
|||
|
|
;* File Name : OPSYS.ASM *
|
|||
|
|
;* *
|
|||
|
|
;* Programmer : Scott Bowen *
|
|||
|
|
;* *
|
|||
|
|
;* Start Date : January 26, 1993 *
|
|||
|
|
;* *
|
|||
|
|
;* Last Update : January 26, 1993 [SB] *
|
|||
|
|
;* *
|
|||
|
|
;* Updated to 32bit protected mode JAW *
|
|||
|
|
;* *
|
|||
|
|
;*-------------------------------------------------------------------------*
|
|||
|
|
;* Functions: *
|
|||
|
|
;* Operating_System -- Determines what the operating system is. *
|
|||
|
|
;* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - *
|
|||
|
|
|
|||
|
|
|
|||
|
|
IDEAL
|
|||
|
|
P386
|
|||
|
|
MODEL USE32 FLAT
|
|||
|
|
|
|||
|
|
GLOBAL Get_CPU :NEAR
|
|||
|
|
|
|||
|
|
|
|||
|
|
DATASEG
|
|||
|
|
|
|||
|
|
OperatingSystem dw 0
|
|||
|
|
|
|||
|
|
|
|||
|
|
CODESEG
|
|||
|
|
|
|||
|
|
;***************************************************************************
|
|||
|
|
;* Operating_System -- Determines what the operating system is. *
|
|||
|
|
;* *
|
|||
|
|
;* INPUT: NONE. *
|
|||
|
|
;* *
|
|||
|
|
;* OUTPUT: *
|
|||
|
|
;* *
|
|||
|
|
;* WARNINGS: *
|
|||
|
|
;* *
|
|||
|
|
;* HISTORY: *
|
|||
|
|
;* 01/26/1993 SB : Created. *
|
|||
|
|
;*=========================================================================*
|
|||
|
|
PROC Get_CPU C near
|
|||
|
|
USES ebx,ecx,edx,es,edi
|
|||
|
|
IF 0
|
|||
|
|
xor eax,eax
|
|||
|
|
mov ax,1
|
|||
|
|
pushf
|
|||
|
|
pop bx
|
|||
|
|
and bh,0fh
|
|||
|
|
push bx
|
|||
|
|
popf
|
|||
|
|
pushf
|
|||
|
|
pop cx
|
|||
|
|
and ch,0f0h
|
|||
|
|
cmp ch,0f0h
|
|||
|
|
je @@1 ;8086 or below 80286
|
|||
|
|
|
|||
|
|
inc ax
|
|||
|
|
or bh,0f0h
|
|||
|
|
push bx
|
|||
|
|
popf
|
|||
|
|
pushf
|
|||
|
|
pop cx
|
|||
|
|
and ch,0f0h
|
|||
|
|
je @@1 ;80286
|
|||
|
|
ENDIF
|
|||
|
|
mov eax,3
|
|||
|
|
mov ebx,esp
|
|||
|
|
and esp,0fffffffch
|
|||
|
|
pushfd
|
|||
|
|
pop edx
|
|||
|
|
mov ecx,edx
|
|||
|
|
xor edx,000040000h
|
|||
|
|
push edx
|
|||
|
|
popfd
|
|||
|
|
pushfd
|
|||
|
|
pop edx
|
|||
|
|
push ecx
|
|||
|
|
popfd
|
|||
|
|
xor edx,ecx
|
|||
|
|
and edx,000040000h ;test alignment check bit
|
|||
|
|
mov esp,ebx
|
|||
|
|
jz @@1 ;80386
|
|||
|
|
;.486
|
|||
|
|
inc eax
|
|||
|
|
pushfd
|
|||
|
|
pop edx
|
|||
|
|
mov ecx,edx
|
|||
|
|
xor edx,000200000h
|
|||
|
|
push edx
|
|||
|
|
popfd
|
|||
|
|
pushfd
|
|||
|
|
pop edx
|
|||
|
|
push ecx
|
|||
|
|
popfd
|
|||
|
|
xor edx,ecx ;test id bit
|
|||
|
|
jz @@1 ;80486
|
|||
|
|
P586
|
|||
|
|
mov eax,1
|
|||
|
|
;.586 or higher, cpuid returns cpu generation number in ax bits 8-11
|
|||
|
|
cpuid
|
|||
|
|
and eax,0f00h
|
|||
|
|
shr eax,8
|
|||
|
|
P386
|
|||
|
|
@@1: ret
|
|||
|
|
|
|||
|
|
ENDP Get_CPU
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
;----------------------------------------------------------------------------
|
|||
|
|
|
|||
|
|
END
|
|||
|
|
|