[Oberon] Oberon 2 compiler for RISC5

[Jörg]

Chris

You‘re right, sounds strange. Let’s assume Debian 9 with KDE uses 444 MB. Don’t know what programming environment was taken (IDE, compiler...); could be that those elements and all their libraries needed more than 68 MB.
Perhaps changing KDE to the somewhat smaller XFCE would have helped...

I could imagine that if you build it on a bigger machine, that it might be possible being run on a smaller machine.

Jörg

> Am 18.11.2018 um 06:56 schrieb Chris Burrows <chris at cfbsoftware.com>:
> 
> These RISC5 Oberon compiler RAM requirements pale into insignificance when
> compared to an implementation of GNU Modula-2 compiler on Linux. My jaw just
> dropped when I read an announcement on the Modula-2 Google groups about GNU
> Modula-2 being available on a Beagle Board:
> 
> "I have finally gotten around to building a native GNU Modula-2 compiler
> package for Debian Stretch on the BeagleBone.  It took about 9 hours to
> build on a SanCloud BeagleBone Enhanced with 1 GB of RAM.  I wasn't able to
> build successfully on a regular BeagleBone with only 512 MB of RAM."
> 
> Does anybody have any ideas why the GNU compiler is such a memory hog? If it
> is the cost of portability I really think there has to be a better way (e.g.
> the OP2 approach) of achieving that.
> 
> It hasn't got anything to do with the Modula-2 language itself. E.g. the
> requirements for MacMETH, the ETHZ single-pass native code compiler for
> Modula-2 that the original Oberon compiler was derived from, are:
> 
> "The MacMETH system requires at least a 512 kByte Macintosh and runs on all
> Macintosh models up to the Quadra. For serious program development, 1 MB of
> RAM and an external drive or preferably a hard disk is recommended." That's
> more like it :)
> 
> Chris Burrows
> CFB Software
> http://www.astrobe.com/RISC5
> 
> 
> 
> 
>> -----Original Message-----
>> From: Oberon [mailto:oberon-bounces at lists.inf.ethz.ch] On Behalf Of
>> Skulski, Wojciech
>> Sent: Thursday, 8 November 2018 2:24 PM
>> To: Michael McGaw; ETH Oberon and related systems
>> Subject: Re: [Oberon] Oberon 2 compiler for RISC5
>> 
>> Michael:
>> 
>> both simple and OP2 compiler would be great to have. The RISC5 back
>> end for the OP2 for cross compilation, and the native Oberon-2
>> compiler for small embedded systems. At least I can see value in the
>> full fledged FPGA-based Oberon System. I hope that Linz V4 can be
>> hosted in four megabytes offered by RiskFive. A scaled down version
>> can probably be hosted by the 1 meg board. In a longer run a full
>> System 3 can be ported to an FPGA. I wonder if 4 megs are enough. I
>> am contemplating designing a board with Cellular RAM, which is a good
>> compromise between memory capacity, performance, price, and firmware
>> complexity. An FPGA based board with 32 megabyte of Cellular RAM is
>> quite feasible. Such a board can certainly run System-3.
>> 
>> W.
>> 
>>> I have read with more than passing interest regarding comments on
>> implementing Oberon 2 for RISC5 targets.
>> 
>> --
>> Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related
>> systems https://lists.inf.ethz.ch/mailman/listinfo/oberon
> 
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