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{ This example demonstrates the use of the flag constants in
conjunction with an interrupt call
In detail it checks if APM (advanced power management) is
available.
Int 15h 5300h - APM specification : Installation check
Input : AX = 5300h
BX = device id of system BIOS (= 0000h)
Return : Carry clear if successful
AH = major version (BCD)
AL = minor version (BCD)
}
uses
go32;
var
r : trealregs;
begin
{ set register values and issue real mode interrupt call }
r.ax := $5300;
r.bx := 0;
realintr($15, r);
{ check if carry clear and write a suited message }
if ((r.flags and carryflag)=0) then begin
Writeln('APM v', (r.ah and $f), '.',
(r.al shr 4), (r.al and $f), ' detected');
end else
Writeln('APM not present');
end.
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