[Info-vax] Running Alpha VMS under the ES40 emulator

[Scott Dorsey]

Simon Clubley  <clubley at remove_me.eisner.decus.org-Earth.UFP> wrote:
>On 2013-10-04, Keith Parris <keithparris_deletethis at yahoo.com> wrote:
>> On 9/27/2013 5:26 PM, Simon Clubley wrote:
>>> As I mentioned previously, I use 32-bit versions of Linux at home.
>>> The kits previously mentioned all require either Windows or 64-bit Linux.
>>
>> So your Linux is 32-bit. Are any of your CPUs 64-bit? I found that using 
>> VirtualBox on a system which had an x86-64 CPU but which was running a 
>> 32-bit OS I could use VirtualBox to emulate a 64-bit CPU and thus run a 
>> 64-bit OS under VirtualBox under a 32-bit OS.
>
>Interesting. I will keep that in mind.

Linux did an okay job of handling the x86 64-bit transition.  Not as good
a job as Solaris did, but a lot better job than Windows did.

32-bit code will run just fine on 64-bit Linux systems.  It may take some
fiddling to figure out what libraries need to be installed, since not all
of them for every application come by default, but it's not a huge deal.

It can be a pain building 32-bit binaries on 64-bit systems, and it can
be an adventure at times because the 32-bit and 64-bit libraries have the
same names but different paths.

But, overall, there is no reason to run a 32-bit Linux if your hardware
can support 64-bit mode.  These days you might as well just go with the
64-bit kernel by default.
--scott
-- 
"C'est un Nagra. C'est suisse, et tres, tres precis."