Date: Fri, 5 Apr 2002 15:40:26 -0500 (EST) From: Jason Borkowsky <jcborkow@tcpns.com> To: Rayson Ho <raysonlogin@yahoo.com> Cc: freebsd-hackers@freebsd.org Subject: Re: 64-bit compiling on a 32-bit FreeBSD machine Message-ID: <Pine.BSF.4.44.0204051539370.64861-100000@bemused.tcpns.com> In-Reply-To: <20020405200237.59784.qmail@web11403.mail.yahoo.com>
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Thanks for the answer. I thought this was a FreeBSD gcc interaction
question, but it turns out it was just a coding question. Thanks though!
> This is gcc question, you can also try gcc@gcc.gnu.org.
>
> main()
> {
> long long ll;
> ll = 1234567890123456LL;
> printf("%lld\n", ll);
> }
>
> % ./a.out
> 1234567890123456
>
> I looked at the assembly dump, it looks OK:
> main:
> pushl %ebp
> movl %esp,%ebp
> subl $8,%esp
> movl $1015724736,-8(%ebp)
> movl $287445,-4(%ebp)
> movl -8(%ebp),%eax
> movl -4(%ebp),%edx
> pushl %edx
> pushl %eax
> pushl $.LC0
> call printf
> addl $12,%esp
>
> Rayson
>
> --- Jason Borkowsky <jcborkow@tcpns.com> wrote:
> > I have a FreeBSD 4.5-RELEASE box that I recently installed gcc-3.0.4.
> > Is there any support for compiling 64-bit source code on this 32-bit
> > set-up?
>
> > (ie, a sort of emulation mode in that if the compiler sees a "long
> > long
> > int", it creates 2 32-bit registers for it instead of a 64-bit
> > register).
> > Currently gcc-3.0.4 understands "long long int", but if you try to
> > assign
> > it a 64-bit value, it just gets set to the largest 32-bit value (4
> > billion).
> > If gcc cannot handle this, are there any other compilers that can
> > made
> > 64-bit code work on a 32-bit machine?
> >
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-hackers" in the body of the message
>
>
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