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i286.pas
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Pascal/Delphi Source File
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1992-02-29
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1KB
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49 lines
{$A+,B-,D-,E-,F+,G-,I-,L-,N-,O+,R-,S-,V-,X-}
{*********************************************************}
{* i286.pas 1.00 *}
{* Written by: David J. N. Begley. *}
{* Released into the public domain *}
{*********************************************************}
unit i286;
{-Intelligently exit if an Intel 80286 or higher is not detected}
interface
{==========================================================================}
implementation
const
CConfig : String[21] = 'i286 config data 1.00';
CErrLvl : Byte = 1;
CErrMsg : String[80] = 'An 80286 or higher processor is required.';
var
AIs286 : Boolean;
begin
asm
xor ah, ah
pushf
pop bx
and bx, 00FFFh
push bx
popf
pushf
pop bx
and bx, 0F000h
cmp bx, 0F000h
je @@1
inc ah
@@1:
mov [AIs286], ah
end;
if not AIs286 then
begin
WriteLn(CErrMsg);
Halt(CErrLvl)
end
end. { i286 }