dosemu 64-bit compile? - SOLVED

[John Summerfield]

Frank Cox wrote:
> On Wed, 14 Nov 2007 00:42:37 +0530
> Saurabh Bathe <sbathe at gmail.com> wrote:
> 
>> AFAIK, edit the makefile for  dosemu.
> 
> Thank you very much for your answer.
> 
> After doing the " rpmbuild --rebuild dosemu-1.4.0-1.src.rpm" step that errored
> out as described in my previous message, I had a file named dosemu-1.4.0.tgz in
> my ~/rpmbuild/SOURCES directory.  I un-tarred that and after poking around a
> bit I found a file named compiletime-settings.  I changed the line in that file
> that said  libdir ${prefix}/lib to  libdir ${prefix}/lib64
> 
> I then recreated dosemu-1.4.0.tgz in the ~/rpmbuild/SOURCES directory so it now
> contained the modified compiletime-settings file.  After that, doing a "rpm
> -bb ~/rpmbuild/SPECS/dosemu.spec" created the file that I wanted,
> dosemu-1.4.0-1.x86_64.rpm.  I installed it and it appears to work as expected.
> 
> PERFORMANCE
> This 64-bit DOSEMU compile runs substantially slower than the 32-bit compile
> that I used previously on this computer.  I have several rather large
> PowerBASIC/DOS programs that are, in fact, the main reason why I use DOSEMU.
> 
> Up until a couple of days ago, I had Fedora 7/i386 on this computer.  I just
> happen to still have the numbers when compiling one of those programs with
> PowerBASIC/DOS under DOSEMU:
> 
> With F7/i386:  1686600 lines per minute -- total time to compile the program:
> 0.2 seconds
> 
> With F8/x86_64:  230400 lines per minute -- total time to compile the program:
> 1.6 seconds.
> 
> The F8/x86_64 DOSEMU is running approximately 13 times slower.
> 
> I understand that DOSEMU has to do more work to run on a x86_64 architecture.
> However, I'm wondering if there is something that I missed or something that I
> should do (compiler options?) that would give it a bit more oomph.
> 
> 

Is freedos or drdos in xen or kvm an option? I expect they should work.


-- 

Cheers
John

-- spambait
1aaaaaaa at coco.merseine.nu  Z1aaaaaaa at coco.merseine.nu
-- Advice
http://webfoot.com/advice/email.top.php
http://www.catb.org/~esr/faqs/smart-questions.html
http://support.microsoft.com/kb/555375

Please do not reply off-list