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PC Underground
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UNDERGROUND.ISO
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nodebug
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nodebug.pas
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Pascal/Delphi Source File
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1995-07-28
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1KB
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58 lines
{$M $4000,550000,550000}
program nodebug;
uses crt;
{$L nodeb.obj}
procedure PIQ_Stop_System; far; external;
procedure keyboard_off; far; external;
procedure keyboard_on; far; external;
procedure no_stepping; far; external;
procedure protected_stopping; far; external;
procedure check_for_Vector(check : longint); far; external;
procedure Restore_checkVector; far; external;
function Vector_OK(check : longint) : boolean; far; external;
procedure Copy_int21_int3; far; external;
begin;
clrscr;
writeln('Check sum for Int3-Vector');
check_for_Vector(12345678);
writeln('Disable keyboard');
keyboard_off;
writeln('Stepping-Trap');
no_stepping;
writeln('PIQ-Trick');
PIQ_Stop_System;
writeln('Protected-Mode switching');
Protected_stopping;
writeln('Vector-Checking');
If NOT Vector_Ok(12345678) then begin;
clrscr;
writeln('Don't debug !');
halt(0);
end;
writeln('Restore check vector');
Restore_checkVector;
writeln('Enable keyboard again');
keyboard_on;
writeln('And we're in the program');
readln;
end.