Re: Delphi for Win64 / AMD64?

From: Will DeWitt Jr. (edge_at_boink.net)
Date: 05/15/04 

Date: 14 May 2004 23:08:01 -0700

Kevin wrote:

> I would like to see a Delphi AMD64 compiler but only if it has an
> option to produce 32-bit bootstrapping code that would launch a
> 32-bit version when run on systems that don't support 64-bit. i.e. I

This would be like Win16 and Win32 compilers including a way to put
actual programs in the DOS stub (the part that runs that usually says
"This program requires Windows" when it's launched on a system without
Windows). Sure, it's nice, but I don't think it's viable. I haven't
studied PE32+ very closely, but I also think it in fact may not be
possible. AMD64 (and IA64) executable images use PE32+ which is an
(AFAIK) incompatible extension of the PE header we use today for Win32
apps. So, if true, you wouldn't be able to shoehorn a Win32 executable
into the 64-bit app anyways.

My suggestion for people concerned with that would be to make install
apps that can detect the environment and it's capabilities and install
different binaries depending on the systems capabilities, or, for
larger apps (where including both in the installer would lead to
substantial bloat), make seperate downloads or CD's available (or move
to DVD for distribution if you're really surpassing the limits of a
650/700 MB CD).

Will 

-- 
Want a 64-bit Delphi compiler for AMD64 / IA-32e?  Vote here--
http://qc.borland.com/wc/wc.exe/details?reportid=7324

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