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From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: system calls, was Re: Hardware Interrupts
References: <mailman.4.1077394968.327.comp.lang.ada@ada-france.org>
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> task Interrupt_handler is
> ...
> I want to call the BIOS interrupt (INT11h) to get the equipment list
  The task stuff is about *handling* interrupts, but you want to *call*
something via a software interrupt.  Compiler vendors normally supply
packages to do such system dependent things - presumably your copy of
Gnat does too.
  If not, you will need to find such a package (or find one in C and
interface to it) or else you'll have to use "machine code insertions"
and code in assembly to set up the calling sequence, issue the interrupt,
and retrieve the results.
  BTW, what machine has a BIOS INT11h call?