|[5 earlier articles]|
|Re: Stack based machines firstname.lastname@example.org (2000-03-25)|
|Re: Stack based machines email@example.com (2000-03-25)|
|Re: Stack based machines firstname.lastname@example.org (Deepak Janardhanan) (2000-03-25)|
|Re: Stack based machines email@example.com (Philip Koopman) (2000-03-25)|
|Re: Stack based machines Keith@wootten.demon.co.uk (Keith Wootten) (2000-03-28)|
|Re: Stack based machines firstname.lastname@example.org (Bernd Paysan) (2000-03-28)|
|Re: Stack based machines email@example.com (Deepak Janardhanan) (2000-03-28)|
|From:||"Deepak Janardhanan" <firstname.lastname@example.org>|
|Date:||28 Mar 2000 01:06:17 -0500|
|References:||00-03-101 00-03-124 00-03-137|
> One stack architecture that is alive and doing well is the entire
> Unisys Clearpath NX server line. These implementation is based on an
> specification known as e-mode the latest that being e-mode Delta.
> This architecture was developed to support ALGOL and its
> extensions. Those in the know will be struck by the similarities
> between the JVM and E-mode. If implemented right the JVM on NX
> servers could be tremendously fast.
> [Oh, right, the ex-Burroughs machines. Considering that the underlying
> architecture is close to 40 years old, it's pretty decent. -John]
Well the 40 year old architecture that you are talking about was
E-mode Alpha or something preceeding even that.Since then there has been
E-Mode Beta specification which is has been emulated on the x86
architecture. This was followed by E-mode Gamma. E-mode Delta originated
somewhere in 1993 or 1994. This provided good improvements among other
things in size of the stack and imrpoved procedure entry times.
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