Path: utzoo!attcan!uunet!microsoft!alonzo
From: alonzo@microsoft.UUCP (Alonzo GARIEPY)
Newsgroups: comp.sys.handhelds
Subject: Re: 48sx cross compilers
Message-ID: <53782@microsoft.UUCP>
Date: 26 Mar 90 19:11:44 GMT
References: <26066088.15354@orion.oac.uci.edu> <3001@moondance.cs.uq.oz.au>
Reply-To: alonzo@microsoft.UUCP (Alonzo GARIEPY)
Organization: Microsoft Corp., Redmond WA
Lines: 16

In article <3001@moondance.cs.uq.oz.au> grue@batserver.cs.uq.oz.au writes:
> 
> I don't think that an RPL compilier would perform much better than the machine
> does at present.  The only performance win I can see are removing the overhead
> of transfer from one object to the next (3 instructions) and optimizing away
> some of the stack operations.

I don't have any statistics to give you, but consider for a moment how much
error checking code there is in the HP48.  Also consider how many functions
work on multiple object types (+ has 25 variations).  All kinds of error and
type checking can be eliminated with a compiler.  I wouldn't be surprised to
find that that RPL is twice as fast for programs with a great number of simple
instructions.

Alonzo
checki