Search found 440 matches

by cfbsoftware
Sat Sep 17, 2011 1:38 pm
Forum: Oberon Language
Topic: Further revision of Oberon-07
Replies: 26
Views: 167367

Re: Further revision of Oberon-07

You previously stated that character variables are assignment compatible with open character arrays. However, I cant find any information about this in the manual. Now that I look again I can't see it either. That is a pity - I would have found it useful. That means the declaration in my CharString...
by cfbsoftware
Sat Sep 17, 2011 6:24 am
Forum: Oberon Language
Topic: Further revision of Oberon-07
Replies: 26
Views: 167367

Re: Further revision of Oberon-07

it is a central property of Oberon-07 that each literal constant (and expression) has a unique and unambiguous type Maybe so in the 2008 version but not any more. Consider the following valid Oberon-07 (2011) statements: VAR char: CHAR; charString: ARRAY 1 OF CHAR; string: ARRAY 2 OF CHAR; char := ...
by cfbsoftware
Fri Sep 16, 2011 11:16 pm
Forum: Oberon Language
Topic: Further revision of Oberon-07
Replies: 26
Views: 167367

Re: Further revision of Oberon-07

It is also interesting to note the asymmetry between the types CHAR and String In theory perhaps but in practice the differences between CHARs and strings have now all but been eliminated. The key point is that now a CHAR and a single character string are compatible. "C" is both a CHAR and an ARRAY...
by cfbsoftware
Fri Sep 16, 2011 1:14 pm
Forum: Getting Started
Topic: OS
Replies: 4
Views: 32345

Re: OS

I can't find information about Minos Operating System See "Minos—The design and implementation of an embedded real-time operating system with a perspective of fault tolerance" by Thomas Kaegi-Trachsel and Juerg Gutknecht in the "Proceedings of the International Multiconference on Computer Science a...
by cfbsoftware
Thu Sep 15, 2011 1:24 pm
Forum: Getting Started
Topic: OS
Replies: 4
Views: 32345

Re: OS

Astrobe is designed to support embedded systems that are too limited in resources to be able to host an OS. Niklaus Wirth and Paul Reed described work they have done with Oberon-07 and the Oberon OS targeting Xilinx FPGA boards at Oberon Day 2011: You can see a video of their presentation at: http:/...
by cfbsoftware
Wed Sep 14, 2011 12:38 pm
Forum: Oberon Language
Topic: Further revision of Oberon-07
Replies: 26
Views: 167367

Re: Further revision of Oberon-07

because they are easier to type in the US keyboard layout
Hmm... I notice that on the German keyboard layout both the single-quote and double-quote are shifted characters...

Perhaps auto-capitalisation of quote characters should be added as an option in Astrobe?
by cfbsoftware
Mon Sep 12, 2011 1:29 pm
Forum: Oberon Language
Topic: Further revision of Oberon-07
Replies: 26
Views: 167367

Re: Further revision of Oberon-07

I think the elimination of single quote string delimiters is unfortunate The double-quote character can be specified as the hex char 22X. You would need to replace / insert / append it to a string at runtime. I agree it would be a nuisance but fortunately it is only likely to occur on rare occasion...
by cfbsoftware
Thu Sep 08, 2011 1:09 pm
Forum: Oberon Language
Topic: Further revision of Oberon-07
Replies: 26
Views: 167367

Re: Further revision of Oberon-07

In the last couple of weeks we have been investigating the changes required to conform to the 2011 Revision of the Oberon-07 report and have already implemented one or two in the development version of the compiler. We plan to replace support for the 2008 language definition with the 2011 language d...
by cfbsoftware
Wed Aug 31, 2011 12:34 pm
Forum: Astrobe for ARM Cortex-M0, M3, M4 and M7
Topic: Not getting the right Frequency...
Replies: 5
Views: 36037

Re: Not getting the right Frequency...

The value of m must be less than n when you use a SET range {m .. n} i.e. m .. n is a shorthand for m, m+1, ... , n-1, n. Currently the compiler does not object but as a result of this report we will modify it so that it reports an error message when this error is detected in the future. When I chan...
by cfbsoftware
Mon Aug 29, 2011 10:18 pm
Forum: Astrobe for ARM Cortex-M0, M3, M4 and M7
Topic: Not getting the right Frequency...
Replies: 5
Views: 36037

Re: Not getting the right Frequency...

Post your message again with the original code formatting preserved - it's difficult to comprehend without it. To preserve the formatting, select your code after pasting it into your message and click on the 'Code' pushbutton beneathe the Subject line. If you do that, instead of: IF (PLLCBit IN bits...