[Simh] DEC Alpha Emulation

[Hittner, David T [US] (MS)]

Well, Migration Specialties is where the developer of ES40 went, anyway. :-)

I'm working on the SIMH Alpha simulator. It is quite a complex beast, where the firmware required to power up the system to the chevrons (>>>) is an operating system of small Linux complexity even before you can try to boot OpenVMS, TRU64 or WinNT.  I think the simulation currently runs some 56 billion instructions before encountering a missing hardware simulation, and it's nowhere near the chevrons - and hasn't even built the OS interface block or the FW-level device tables yet.

If anyone would like to help with the Alpha development, I wouldn't say no. It takes a long time to figure what the RISC firmware is trying to accomplish. :-)

Dave

-----Original Message-----
From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Vorländer, Martin
Sent: Friday, February 2, 2018 3:16 AM
To: 'SIMH' <simh at trailing-edge.com>
Subject: EXT :Re: [Simh] DEC Alpha Emulation

Zane,

just had a look at your Alpha page, and noticed that you missed an emulator:
FreeAXP / Avanti from Migration Specialties, http://www.migrationspecialties.com/
This is where the ES40 emulator went, AFAIK.

cu,
Martin

-----Ursprüngliche Nachricht-----
Von: Simh [mailto:simh-bounces at trailing-edge.com] Im Auftrag von Zane Healy
Gesendet: Freitag, 2. Februar 2018 05:56
An: SIMH <simh at trailing-edge.com>
Betreff: [Simh] DEC Alpha Emulation

I'm in the process of slowly updating my DEC Emulation website, which has been largely stagnant since 2007.  The first page I'm spending some significant time on is the DEC Alpha page, as I'm curious to see what the current options are.  In reviewing things, I notice that Alpha emulation was worked on at some point for SIMH (probably around 2006).  What is the current state of that work?  I had a quick google, and the most popular hit seems to be mirrored copies of my site. 

http://www.avanthar.com/healyzh/decemulation/Alpha.html

Thanks,
Zane



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