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From: Martin Str|mberg <ams AT ludd DOT luth DOT se>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: different binary output with 32- and 64-bit hosted compilers
Date: Wed, 2 Sep 2015 06:02:37 +0000 (UTC)
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"Ozkan Sezer (sezeroz AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com> wrote:
...
> Binary files 32/src/debug/fsdb/expr.o and 64/src/debug/fsdb/expr.o differ
> diff -urp '--exclude=*.d' '--exclude=*.i' '--exclude=id_*.o'
> '--exclude=stub*' '--exclude=*.tex' '--exclude=*.exe'
> '--exclude=djasm.c' 32/src/libc/ansi/stdio/doprnt.s
> 64/src/libc/ansi/stdio/doprnt.s
> --- 32/src/libc/ansi/stdio/doprnt.s     2015-09-01 20:57:08.000000000 +0300
> +++ 64/src/libc/ansi/stdio/doprnt.s     2015-09-01 21:06:18.258481451 +0300
> @@ -4788,85 +4788,85 @@ _NAN_REP.3610:
>         .ascii "NAN\0"
>         .p2align 4
>  _powtenneg:
> -       .long   -858993459
> -       .long   -858993460
> +       .long   3435973837
> +       .long   3435973836


-858993459 and 3435973837 is the same number on a 32-bit
two-complements machine (you'll get the same bit pattern in the
memory). Likewise -858993460 and 3435973836.

I say all the others are as well but I haven't verified that.


-- 
MartinS