Comments on: There is a new Dec Alpha emulator out there… https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/ Fun with Virtualization Thu, 15 Feb 2024 15:40:41 +0000 hourly 1 https://wordpress.org/?v=7.0.1 By: Mekenis https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-354302 Thu, 15 Feb 2024 15:40:41 +0000 https://virtuallyfun.com/?p=405#comment-354302 In reply to Tim.

Did you get the “Introduction to CDE” video to play and Twirling Text to work on Digital UNIX 4.0E?

]]> By: neozeed https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-185346 Mon, 31 Jul 2017 04:25:35 +0000 https://virtuallyfun.com/?p=405#comment-185346 In reply to Viktor.

Unfortunately I do not.

]]> By: Viktor https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-185341 Sun, 30 Jul 2017 21:59:45 +0000 https://virtuallyfun.com/?p=405#comment-185341 anyone has the alphavm emuvm copy to share? its not on their website anymore they removed it.

Thanks

Viktor

]]> By: raganata https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-130636 Sat, 31 Jan 2015 21:31:57 +0000 https://virtuallyfun.com/?p=405#comment-130636 This emulator support linux but is slow and free version
has serious limits: one for all: no idle cpu release( only avaliable in commercial version),so when it run 100% of cpu is used(sic!).
Is a useless emulator imho.

]]> By: veprbl https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-49071 Wed, 27 Nov 2013 23:14:56 +0000 https://virtuallyfun.com/?p=405#comment-49071 In reply to Tim.

Hi Tim,

The “threading” patch is just a rehash of the main switch so it has next opcode handler branching point in the end of each switch case instead of one branching point in the head of the switch. This supposed to enhance performance by spreading host processor’s instruction cache, so it will kinda predict the next emulated opcode. My benchmarks didn’t show that huge difference with running gzip/bzip2. But I was able to do a proper hdd install of NetBSD with these changes, so they should be working.

I have little interest in all DEC Alpha stuff, but it still would be interesting to see your work.

Dmitry

]]> By: Tim https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-47186 Sat, 02 Nov 2013 15:55:46 +0000 https://virtuallyfun.com/?p=405#comment-47186 In reply to Jeremie.

Hi,
I recently returned back to my three year old ES40 enhancement project.
I made some patches and added/repaired support for the Tulip network card (only in promiscous mode)
I was able to install and run Tru64 4.0D and E and was also able to transfer data via ftp from some LinuxBox.
Also there is someone at https://github.com/veprbl/es40, who integrated patches
to let ES40 run on NetBSD and improved the CPU interpreter (added threading algorithm) as far as I understood, but I haven’t tried yet.
However there are plenty of problems left in my ES40 branch:
– Remote install does not work,
– tried to add cirrus graphic card support, but system hangs while booting into X
– debug version locks up in some semaphore stuff
– crash after termiation (via CTRL-C)
ES40 uses the cirrus code from bochs and bochs recently did a major rewrite of it, so I’m thinking of porting the new bochs code into ES40, this was the reason I crossed this site.
So if there is interest I can upload my changes to github, probably after merging with veprbl and removing some nasty debug statements 😉
Just let me know.

Tim

]]> By: Jeremie https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-42343 Sun, 18 Aug 2013 14:38:32 +0000 https://virtuallyfun.com/?p=405#comment-42343 Can someone pick up the ES40 emulator so that we can have a SIMH like, open source, free, Alpha emulator. It’s kinda frustrating seeing how that project was run aground and left for dead.

]]> By: neozeed https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-36437 Fri, 05 Apr 2013 04:51:46 +0000 https://virtuallyfun.com/?p=405#comment-36437 In reply to Artem.

Oh well, I had to ask.

]]> By: Artem https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-36418 Thu, 04 Apr 2013 10:53:41 +0000 https://virtuallyfun.com/?p=405#comment-36418 In reply to neozeed.

So far there is no commercial justification for it. It is too hard to implement just for fun.

]]> By: Artem https://virtuallyfun.com/2011/04/02/there-is-a-new-dec-alpha-emulator-out-there/comment-page-1/#comment-36417 Thu, 04 Apr 2013 10:51:59 +0000 https://virtuallyfun.com/?p=405#comment-36417 So far there is no commercial justification for it. It is too hard to implement just for fun.

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