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Re: [PROGRAMMERING] Parallelport-access

"Søren H. Sørensen" wrote:

> Hjælp! (standard c)
> 
> Jeg skal bruge et bit i parallelporten til at styre et eksternt relæ.
> Derfor starter jeg med:
> ioperm(0x3bc, 1, 1 );
> Kort tid derefter forsøger jeg at sætte databit-0 med:
> outb( 0x3bc, 1);
> Sidste linie får bare compileren til at melde:
> testpar.c:15: warning: large integer implicitly truncated to unsigned
> type.

Hmm, hoppas du redan löst ditt problem, annars är en gissning här

Kompilatorn upptäcker att du har vänt parametrarna,
men kan inte berätta det för dig på ett begripligt sätt.

prova outb(1, 0x3bc) istället

Jag är inte imponerad av c och dess typsäkerhet.
Givetvis skulle ditt program inte gå att kompilera,
men det är en annan sak.

-- 
/Björn
sslug@sslug

 
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