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Date: Thu, 06 Mar 2008 18:26:19 +0100
From: Georg Bauhaus <rm.tsoh-plus.nicif-bauhaus@maps.futureapps.de>
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Newsgroups: comp.lang.ada
Subject: Re: updating a hardware cursor with assembly and ada
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Date: 2008-03-06T18:26:20+01:00
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cl1 schrieb:

> unsigned char outportb (unsigned short _port, unsigned char _data)
> {
>  __asm__ __volatile__ ("outb %1, %0" : : "dN" (_port), "a" (_data));
> }

> -----------------------------------------------------------------------------
>   procedure Update_Cursor (Console : Video_Console) is
>      procedure OutportB (Port : Natural; Data : Natural);

Does type Natural match C type unsigned short on your system?
(Just a guess.) Maybe Interfaces.Unsigned_N is better choice.

>      pragma Import(C, OutportB, "outportB");