From: Jon Harrop <jon@ffconsultancy.com>
To: Richard Jones <rich@annexia.org>
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Int32 and boxing
Date: Wed, 15 Aug 2007 07:48:31 +0100 [thread overview]
Message-ID: <200708150748.32157.jon@ffconsultancy.com> (raw)
In-Reply-To: <20070813175501.GA24394@furbychan.cocan.org>
On Monday 13 August 2007 18:55:01 Richard Jones wrote:
> I deal a lot with int32 and int64 types when interfacing with other
> languages, so this causes an annoyance. I'm not sure what the
> implications would be of having a different representation on 32 and
> 64 bit machines. I guess Marshal would have to go through hoops for a
> start.
Now that I think about it in more detail, this would probably require deeper
compiler changes than I had thought. You wouldn't need to alter the run-time
but you'd need to emit different load and store code for unboxed float32s,
tagging and untagging them, and do arithmetic in 32-bit registers.
I'm not sure Marshal would need changing though. The representation would be
embedded in nativeint so it would just be a type difference.
--
Dr Jon D Harrop, Flying Frog Consultancy Ltd.
OCaml for Scientists
http://www.ffconsultancy.com/products/ocaml_for_scientists/?e
prev parent reply other threads:[~2007-08-15 6:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-13 4:08 Jon Harrop
2007-08-13 17:55 ` [Caml-list] " Richard Jones
2007-08-15 6:48 ` Jon Harrop [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200708150748.32157.jon@ffconsultancy.com \
--to=jon@ffconsultancy.com \
--cc=caml-list@yquem.inria.fr \
--cc=rich@annexia.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).