log in | register | forums
Show:
Go:
Welcome
The Icon Bar is the longest running RISC OS portal. The sensibilities that Acorn instilled in us still influence our interests and writing.

Buy swag
Got news?
Let us know!
Bob and Trev: Resurrection
Bob and Trev: Resurrection
A dystopian Acron roguelike written in 7 days and 32K
Subscriptions RSS Feeds
RSS 2.0 | 1.0 | 0.9
Atom 0.3
Misc RDF | CDF
Podcasts
Subscribe | iTunes | List
Latest MP3
Site Search
 
Article archives

A fresh look at the Desktop Development Environment Manuals

Posted by Mark Stephens on 10:28, 1/2/2017 | , , ,
 
TheDesktop Development Environment manual is the essential documentation to make the most of the Desktop Development Environment. Both have been adopted and are now updated by RISC OS Open. The manuals come free with the DDE and are also available to buy in printed manual form.
 
The first edition of the manuals was produced in 1994 and it has been revised several times. As you would expect from professional developers, RISC OS Open includes a changelog so you can see what exact changes have been made. Last major update was in 2015. The manuals have also been rebranded with the RISC OS Open cog logo and company name.
 
There are 3 manuals in the set.
 
The Desktop Tools manual (329 pages) covers all the tools in the DDE (Make, Squeeze, SrcEdit, ABC, etc). There is a nice introductory section at the start telling you how to setup and start using the tools.
 
There are lots of screenshots to show the features in action. It should not be regarded as a tutorial but there is lots of material on using them. The Desktop Debugging tool includes 60 pages explaining how to use it.
 
The last 100 pages are Appendices which cover a summary of changes added over the years and information which you would need to use the tools (Library file formats, alignment details, file syntax,etc).
 
The Acorn Assembler manual (159 pages) shows you how to use ObjAsm. It includes some details on ARM Assembler instructions but it is not a tutorial (it does include some good further reading suggestions for you to learn ARM code). The focus is on using the tool and its features (ie labels, macros compilation). There are also some short chapters on writing RISC OS modules and interacting with C.
 
The Acorn C/C++ manual (438 pages) provides provides detailed coverage of the C and C++ language features supported by the Compiler (as well as the libraries) and some useful details and tips on writing RISC OS applications from C or C++. The languages are cleanly separated out so you only want to write C, it is easy to skip the non-relevent items. Again it is not a tutorial on coding, but a detailed summary of all the details you need to develop code.
 
All three manuals include an index at the back to help you to navigate as well as very detailed section descriptions at the start and a clear structure.
 
All three books are part of the DDE or available in a printed version (discounts for registered developers). The printed package makes a fairly bulky doorstop (and a great table stand for my MacBookPro!). I also find that it is the sort of programming content which I like to read and reread offscreen.
 
Further details on the DeskTop Tools Manual can be purchased from RISC OS Open website or they usually have some copies as Show events. Maybe something to check out at the South West Show later this month.
 
If you are looking to write software, you should also consider the Style Guide which tells you how the software should look and act to fit into RISC OS nicely.
 
Comment in the forums

Getting FAT32FS working on a RiscPC with a Castle USB Card

Posted by Jon Robinson on 13:57, 28/6/2014 | , , , ,
 
I have a RISC OS 4.39 RiscPC with a CastleInfo USB card and Compact Flash card reader attached. This uses Castle‘s !SoftSCSI to access the flash cards.
 
For a long time, I have been frustrated by its inability to mount any flash card larger then 2 GB in size. I really wanted to use a single flash card, to back up my 40 GB hard drive, as having to use a pocket full of 2 GB cards is a real pain.
 
I had been put off experimenting with Jeff Doggett‘s FAT32FS before, because I had read somewhere that it only works with the USB stack on the Iyo.
 
But, as it‘s the only solution, I did have a go at trying to get FAT32FS working on my RiscPC, recently. And, luckily, it turns out that the USB podule card on the RiscPC, is sufficiently similar to the one in the Iyonix, that it does, in fact, work.
 
It did take a bit of experimentation, however, to work out how to do it.
 
 
Continue reading "Getting FAT32FS working on a RiscPC with a Castle USB Card" | Comment in the forums

The Icon Bar needs YOU

Posted by Jeffrey Lee on 21:40, 24/4/2014 | ,
 
  • Are you tired of looking at the front page and seeing those same old articles from over a year ago?
  • Have you noticed we haven't done anything new for April Fools day for several years?
  • Have you noticed how most of our show announcements are dangerously close to being made too late?
  • Do you have a keen interest in RISC OS?
  • Are you capable of forming basic sentences?
  • Do you enjoy working long hours for no pay and little reward?
If you answered YES to all of the above, then good news! We're looking for new writing staff to supplement the current lot, most of whom left the RISC OS scene behind a long time ago, or are far too busy with other things to update the site on a regular schedule.
 
At The Icon Bar we're primarily interested in delivering original content in the form of news, articles and reviews, rather than just regurgitating press releases all the time. So if that fits your bill then feel free to get in touch, either via the contact form or by posting in the thread below. And if you're lucky, we'll get back to you before you die of old age!
 
3 comments in the forums

What is the point of RISCOS Ltd?

Posted by Jeffrey Lee on 19:00, 7/11/2009 | , , , , , , , ,
 
What is the point of RISCOS Ltd?After hearing the news that videos from the recent RISC OS London Show are now available online, I decided to take a look at what RISCOS Ltd had to say in their presentation. The results I found to be quite shocking...
 
Disclaimer: Although I've obviously been doing a lot of work for RISC OS Open recently, I am not a member of ROOL, nor am I speaking on behalf of ROOL (or The Icon Bar). The opinions expressed below are mine and mine alone, and any likeness or resemblence to any other person's opinions is entirely coincidental.
 
 
Continue reading "What is the point of RISCOS Ltd?" | 197 comments in the forums

Bob and Trev: Resurrection: Just in time

Posted by Jeffrey Lee on 00:15, 17/3/2007 | , , , , , , , ,
 
498 bytes free memoryPreviously, on Bob and Trev: Resurrection...
Game over, man
 
The competition is nearly at an end, which can only mean one thing - tomorrow's article will be the conclusion, and will (hopefully!) feature a copy of the game to download.
...and here it is.
 
 
Continue reading "Bob and Trev: Resurrection: Just in time" | 19 comments in the forums

Monster AI

Posted by Jeffrey Lee on 00:00, 16/3/2007 | , , , , , , , ,
 
Previously, on Bob and Trev: Resurrection...
Next time I'll be talking about monster AI. I'm not going to be creating an Einstein, but I will be able to talk about a few of the basic features I'm hoping to implement.
But before I talk about monster AI, I might as well take the time out to talk about the time system that the game will use. Also, I don't have much other material for this article.
 
 
Continue reading "Monster AI" | Comment in the forums

Combat

Posted by Jeffrey Lee on 00:00, 15/3/2007 | , , , , , , , ,
 
Previously, on Bob and Trev: Resurrection...
Next time I will be tackling combat. Having never written a roguelike combat system before, it will be an interesting exercise in deciding how mechanics such as strength and armour class will work, and attempting to get the numbers right first-time to reduce the amount of balancing required.
Forsight, there.
 
Combat is an important aspect of all roguelikes. But having never looked at a roguelike combat engine in detail before, I don't really know much about how they work. Monsters have strength, dexterity, and armour class attributes, but how do those translate into how hard the monster hits with a weapon?
 
Note that a lot of the values and equations presented in this article aren't set in stone yet, and will require tweaking during play-testing. But hopefully I'll be able to shed some light on the different aspects of combat, and the thought processes involved in creating a balanced combat system.
 
 
Continue reading "Combat" | 7 comments in the forums

Visibility and pathfinding

Posted by Jeffrey Lee on 00:00, 14/3/2007 | , , , , , , , ,
 
Previously, on Bob and Trev: Resurrection...
...
Yeah, looks like I forgot to write anything to lead onto this article.

Anyhoo, this article will be discussing visibility and pathfinding. Both are important aspects of many roguelikes, and both have some important implementation issues to try and overcome. Line-of-sight algorithms are a popular topic on rgrd - right now I can see two threads talking about LOS algorithms, and know of at least one other that talks about them.

 
Continue reading "Visibility and pathfinding" | Comment in the forums

The level generator

Read article... | 3 comments in the forums

Static game data

Read article... | Comment in the forums

How to fit a roguelike in 32k

Read article... | 10 comments in the forums

Bob and Trev: Resurrection

Read article... | 3 comments in the forums

Rounding Up February

Read article... | 2 comments in the forums

ArtWorks 2.5 will feature PDF export

Read article... | 4 comments in the forums
Recent discussions
- 10 RISC OS gift ideas for Christmas (News:)
- Drag'N'Drop Autumn edition now available (News:)
- !DualHead puts 2 screens in one (News:)
- RISC OS London Show 2017 - Notes from the talks (News:6)
- November News (News:)
- !Organizer 2.28 reviewed (News:2)
- !OBrowse reviewed (News:10)
- Aemulor (Gen:16)
- DDE reaches release 28 and above (News:)
- Elesar quicks dispels stormy clouds (News:2)
Services
- Free ads
- Web hosting
Sites we like
- Ganymede & Titan
- Kotaku
- Daring Fireball
- pagetable.com
- Drobe
Statistics
- Web browsers
- Operating systems
- Types
- Countries
- RSS