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To: mike@Reifenberger.com
From: Warner Losh <imp@bsdimp.com>
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Cc: freebsd-arm@freebsd.org, cognet@freebsd.org
Subject: Re: 64bit integer problem?
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From: Michael Reifenberger <mike@Reifenberger.com>
Subject: 64bit integer problem?
Date: Tue, 18 Sep 2007 18:35:04 +0200 (CEST)

> Hi,
> 
> on my AVILA-arm board I'm unable to compile lang/perl
> 
> On of the problems seems to be related to long long handling:
> 
> The following program:
> ##############################
> #include <sys/types.h>
> #include <stdio.h>
> int main() {
>    long long q = 12345678901LL;
>    printf("%lld\n", q);
> }
> ##############################
> 
> gives the output:
> -2315945094416433150
> 
> Is there a endian issue?

12345678901 is 0x2DFDC1C35
2315945094416433151 is 0x2023E3CAFFFFFFFF
-2315945094416433150 is therefore 0xdfdc1c3500000000

which the lower 32bits of 'q' shifted over 32 bits.

Maybe this is an endian issue, since I don't see it on my AT91RM9200
based boards (which are little endian).

Warner