[Oberon] RISC.img format

[Chris Burrows]

> -----Original Message-----
> From: Oberon [mailto:oberon-bounces at lists.inf.ethz.ch] On Behalf Of
> peter at easthope.ca
> Sent: Monday, 15 February 2016 5:30 AM
> To: oberon at lists.inf.ethz.ch
> Subject: Re: [Oberon] RISC.img format
> 
> From:	Paul Reed <paulreed at paddedcell.com>, Sat, 13 Feb 2016 11:24:46
> +0000
> > ... the filesystem is not exactly the same format as any that have
> > gone before, even the ETH PC-based Oberon filesystems.
> 
> ETH PC Native Oberon has and FPGA Oberon has a b-tree as primary
> structure of the file system.  Both FS  are "flat".  Both limit the
> length of a file name to 31 or 32 characters.  They differ in upper
> limit on file size or on number of files?  Better algorithms
> implement the newer FS?
> 
> In principle I can find answers in the source code but the study will
> occupy days.
> 

One significant feature that sets Project Oberon apart from most other open
source projects I have seen is that the *design* (not just the *user
reference*) is thoroughly documented - including many diagrams. You do not
have to decipher source code or try to read the minds of the developers to
find answers to questions like these. 

Download the three PDF files that make up the Project Oberon book ('Book
Chapters x-x') from:

http://www.projectoberon.com/

The file system is described in Chapter 7. 

Regards,
Chris

Chris Burrows
CFB Software