From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: Help: Ada in NetBSD
Date: Mon, 13 Sep 2021 18:24:04 -0400 [thread overview]
Message-ID: <p9jvjgd6gju9dk4l2d3upev4bb9u3q6c93@4ax.com> (raw)
In-Reply-To: sho6et$lgq$1@gioia.aioe.org
On Mon, 13 Sep 2021 20:49:01 +0200, Fernando Oleo Blanco
<irvise_ml@irvise.xyz> declaimed the following:
>
>In the Makefile.rtl, there are OS/architecture pairs. For example, there
>is an entry for FreeBSD-x86 and FreeBSD-x86_64. My basic question is,
>why not just have an entry per OS?
>
In typical usage, x86 is 32-bit only, x86_64 is 64-bit with support for
running 32-bit applications.
ARM 64-bit should support running 32-bit applications, but may not
support the 16-bit "Thumb" instructions which are available in many of the
32-bit models. There is also the question of hardware floating point (which
may only be 32-bit).
The difference between 32 and 64 bit is significant when compiling
code, as it determines if the code does native 64-bit "long integers" or
requires software emulation for such data lengths.
--
Wulfraed Dennis Lee Bieber AF6VN
wlfraed@ix.netcom.com http://wlfraed.microdiversity.freeddns.org/
next prev parent reply other threads:[~2021-09-13 22:24 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-29 11:06 Help: Ada in NetBSD Fernando Oleo Blanco
2021-08-29 13:19 ` Stephane Carrez
2021-08-29 18:08 ` Fernando Oleo Blanco
2021-08-29 18:25 ` Simon Wright
2021-08-29 20:36 ` Fernando Oleo Blanco
2021-08-29 22:08 ` Stephane Carrez
2021-08-30 7:37 ` Simon Wright
2021-08-30 8:14 ` Fernando Oleo Blanco
2021-08-30 10:24 ` Fernando Oleo Blanco
2021-08-30 12:15 ` Fernando Oleo Blanco
2021-08-30 18:49 ` Fernando Oleo Blanco
2021-08-30 19:23 ` Simon Wright
2021-09-01 9:44 ` Fernando Oleo Blanco
2021-09-01 21:41 ` Simon Wright
2021-09-02 22:16 ` Randy Brukardt
2021-09-03 20:18 ` Simon Wright
2021-08-29 17:34 ` Simon Wright
2021-08-29 17:45 ` Fernando Oleo Blanco
2021-09-01 13:28 ` John R. Marino
2021-09-01 14:58 ` Fernando Oleo Blanco
2021-09-17 17:36 ` Fernando Oleo Blanco
2021-09-18 16:39 ` Fernando Oleo Blanco
2021-09-22 20:05 ` Fernando Oleo Blanco
2021-09-22 20:57 ` Simon Wright
2021-09-23 8:04 ` Luke A. Guest
2021-09-23 10:48 ` Kevin Chadwick
2021-09-23 17:01 ` Fernando Oleo Blanco
2021-09-23 17:04 ` Fernando Oleo Blanco
2021-09-23 19:53 ` Fernando Oleo Blanco
2021-09-24 7:48 ` Simon Wright
2021-09-24 9:44 ` Fernando Oleo Blanco
2021-09-13 18:49 ` Fernando Oleo Blanco
2021-09-13 22:24 ` Dennis Lee Bieber [this message]
2021-09-17 17:19 ` Fernando Oleo Blanco
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