Already investigated that – the DOSBOX emulator has no Timeout, or ping
command, no networking at all. If there is no sleep command that does not eat
the CPU then I don’t need to look further....
From: Jolyon Direnko-Smith
Sent: Thursday, February 25, 2016 7:19 PM
To: NZ Borland Developers Group - Delphi List
Subject: Re: [DUG] [computing] 16 bit compiler and Ancient Mariners
As a matter of historical curiosity, Delphi 1 was the first AND last version to
support 16-bit targets.
Delphi 2 included Delphi 1 in the box for people that still needed 16-bit
support but otherwise it was 32-bit all the way from Delphi 2 onward.
There is no direct Sleep() equivalent in 16-bit and some of the other
techniques may help in the absence of that. NB. If you have a TCP/IP stack and
can use PING then you can use that trick and when considering an IP address to
[ab]use, there is (as they say) no place like home:
ping 127.0.0.1 -n 2 -w 10000 > NUL
Also note that the -w delay is BETWEEN pings. The first ping is instant, so to
wait for that specified delay you need to ping TWICE (-n 2).
Redirecting to NUL also ensures that the PING output doesn't clutter up your
screen (if that's important).
Incidentally, I still have an XP VM hosting my "Delphi Museum". That is,
functional installations of Delphi 1 thru 6 so if you ever reach a point where
you simply need to compile some Delphi 1 code feel free to get in touch. I may
be able to act as a compiler proxy for you. :)
On 25 February 2016 at 17:51, David O'Brien <[email protected]> wrote:
Or "timeout 10" in a batch file...
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Peter Ingham
Sent: Thursday, 25 February 2016 5:45 pm
To: NZ Borland Developers Group - Delphi List <[email protected]>
Subject: Re: [DUG] [computing] 16 bit compiler and Ancient Mariners
On 25/02/2016 4:47 p.m., John Bird wrote:
> I have some legacy software that requires DOSBOX (DOS emulator to run
> 16 bit
> software) when running on 64 bit Windows.
>
> I would like to add some Delphi addons already written, mainly
> console/command line apps, but all the versions of these I currently
> have, (built with Delphi 5/6/2007) say simply This program requires
> Win32 to run, ie they are 32 bit compiled even as console apps.
>
> Is there any option in Delphi to compile for 16 bit OS or do I have to
> find Delphi 1 or 2 or whichever was the last 16 bit version? (have
> D2007 and versions up to Seattle)
>
> One of the main things I want is to have a command to sleep for 10
> seconds without Clobbering the CPU - exactly what sleep(10000) would do -
on Win32
> it uses a WIn32 API. If there is no 16 bit equivalent, ie no
> implementation of sleep() in 16 bit Delphi, then I would like to know.
>
> This question is mainly for other ancient mariners out there who like
> me lived through a lot more of IT history than they like to admit.
>
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>
I'm presuming you want a command-line command you can call from a batch
script.
On systems with TCP/IP networking, you can use a ping to an address you know
does not exist to simulate a Sleep (the subnet must exist).
e.g: "ping 192.168.253 -n 1 -w 2000" for a 2 second delay or "ping
192.168.253 -n 1 -w 10000" for 10 seconds.
Regards
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