Go to advanced search

by AMcS
Sun May 12, 2013 9:01 pm
Forum: RISCOS
Topic: Using a wireless mouse and keyboard
Replies: 14
Views: 51730

Re: Using a wireless mouse and keyboard

This is my first foray into RISC OS. I have a GearHead wireless desktop, same as marketed by Allied Electric with the RPi, both keyboard and mouse work fine under Rasbian but when I boot RISC OS neither keyboard or mouse seem to work. Would I be correct in assuming the "no USB WiFi support in RISC ...
by AMcS
Sun May 12, 2013 10:17 am
Forum: RISCOS
Topic: CUPS on RISC OS?
Replies: 6
Views: 2964

Re: CUPS on RISC?

If not having CUPS is a showstopper, you could use 'brandy' to run BBC BASIC on Linux? Otherwise dual-boot (ie have two SD cards)? Brandy and BBC BASIC are not exactly alike though (BBC BASIC supports graphics/sound whereas Brandy does not and BBC BASIC on RISC OS is faster). On the "dual boot" thi...
by AMcS
Sun May 12, 2013 10:10 am
Forum: RISCOS
Topic: No access to internet via wireless
Replies: 18
Views: 5891

Re: No access to internet via wireless

I've ordered a cheap wireless bridge, I'll post back if I get it to work successfully. In the mean time I've configured my wireless enabled laptop as a bridge to the LAN socket on the Pi. This was because my broadband router is in the centre of the house but not conveniently near anywhere where I c...
by AMcS
Wed May 08, 2013 9:29 pm
Forum: RISCOS
Topic: Paralle data entry
Replies: 20
Views: 5032

Re: Parallel data entry

Thanks very much for that source ... So about 100kBytes/s seems to be the limit, right. Well, that would mean that it takes 3 seconds to capture an image with 640x480 pixels and 1 byte per pixel ... Hmmm ... Great for many things, but ... The discussion was in connection to converting a serial to p...
by AMcS
Tue May 07, 2013 9:04 pm
Forum: RISCOS
Topic: No access to internet via wireless
Replies: 18
Views: 5891

Re: No access to internet via wireless

Ok, guys.... Here's what I did.... I bought a Netgear router, WN2000RPT and hooked it up. The Pi is communicating to it but I have a brick wall. My hotspot is a Verizon Jetpack and the router is not picking it up. Now, I have another brick wall, I need instructions step by step how and what to put ...
by AMcS
Sun May 05, 2013 12:57 am
Forum: RISCOS
Topic: No access to internet via wireless
Replies: 18
Views: 5891

Re: No access to internet via wireless

Thanks for all your replies. Somewhat helpful. If the WiPi works in Raspbain, is there a way to write up a program or does anyone have one written up that I could load it into the RISC OS Pi operating system? Or, is there an upgrade to this OS to allow it to address and activate the WiPi? Bill It's...
by AMcS
Sun May 05, 2013 12:26 am
Forum: RISCOS
Topic: Risc OS + Samba
Replies: 3
Views: 1608

Re: Risc OS + Samba

Ah that must be the problem : x.. Is there another way to get samba running though ? Recompiling sounds like alot of work.. Guess it wont be just "load sources and click compile".. So maybe I'll switch to debian. hmmn ~ Depends on the exact error that was given (I thought 0.08 was supposed to be 32...
by AMcS
Mon Apr 29, 2013 9:21 pm
Forum: RISCOS
Topic: RISC OS Wakefield 2013 Show
Replies: 21
Views: 5607

Re: RISC OS Wakefield 2013 Show

As a further aside apparently the folks over at NetSurf we're prepping NetStuf 3.0 at the show (and now I believe it's available for download) - has anyone tried it yet ?
by AMcS
Tue Apr 23, 2013 8:59 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

Thanks for answering pygmy_giant but sadly I don't really understand and if I don't understand a one word sentence then it will probably be a waste of time to elucidate. I did however read the Wiki page re Macro which possibly sheds a little light but it's almost definitely not something I'm going ...
by AMcS
Mon Apr 22, 2013 7:10 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

But its very easy to have the best of both worlds, example, ease of basic and just as portable and the speed and size of assembly. First the inc (this is the bit that changes for all platform or os) DBasic_L.inc You could very easy port it to riscos. It also can be run bare metal on the pi Hi DexOs...
by AMcS
Sat Apr 20, 2013 12:19 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

But its very easy to have the best of both worlds, example, ease of basic and just as portable and the speed and size of assembly. First the inc (this is the bit that changes for all platform or os) DBasic_L.inc You could very easy port it to riscos. It also can be run bare metal on the pi Hi DexOs...
by AMcS
Sat Apr 20, 2013 12:06 pm
Forum: RISCOS
Topic: RISC OS Wakefield 2013 Show
Replies: 21
Views: 5607

RISC OS Wakefield 2013 Show

Hi All, Not being able to attend myself (for me it's not quite the "Dark Side of the Moon" - but is pretty proximal to it...), there's a RISC OS show on in Wakefield today (Saturday 20th April) and (I suspect) there will be more than a little RaspberryPi related goodness there: Details: http://www.w...
by AMcS
Thu Apr 18, 2013 9:05 pm
Forum: RISCOS
Topic: RISC OS; Pros and Cons
Replies: 145
Views: 29809

Re: RISC OS; Pros and Cons

Well, I have the Maplin keyboard and mouse, and sometimes a USB stick, connected to the hub; only the hub itself is connected to the Pi. I do have an ethernet cable connected, and use the Maplin power supply. Thanks again for that. I think this is one of those cases where one has to be pragmatic - ...
by AMcS
Wed Apr 17, 2013 9:11 pm
Forum: RISCOS
Topic: RISC OS; Pros and Cons
Replies: 145
Views: 29809

Re: RISC OS; Pros and Cons

There's something a bit "variable" about all of this. I can run RISC OS (at stock speed I may add) using the keyboard that comes with the Maplin "RaspberryPi" kit (and a 512MB Pi) with no issue *except* when I connect it to the supplied Hub rather than the Pi Odd. I have the exact same setup as you...
by AMcS
Wed Apr 17, 2013 12:29 am
Forum: RISCOS
Topic: RISC OS; Pros and Cons
Replies: 145
Views: 29809

Re: RISC OS; Pros and Cons

Yes - I too would have thought that overclocking would exacerbate the issue - but at stock speed with my keyboard RISCOS is near to unuseable missing many keypresses and repeating others until another key is pressed. I'm told that purchasing a cheaper keyboard will likely fix it completely - but I ...
by AMcS
Tue Apr 16, 2013 11:04 pm
Forum: RISCOS
Topic: RISC OS; Pros and Cons
Replies: 145
Views: 29809

Re: RISC OS; Pros and Cons

Not that you were asking me.. Don't worry -the more feedback the better (and I'd rather if you've experienced something different to hear about it !) but.. mine does it thru the hub and when attached directly. Oddly, it almost never happens when I'm overclocked and absolutely never on Raspbian. It'...
by AMcS
Tue Apr 16, 2013 9:13 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

..Surely what makes high level language code easier to read is the comments, as well as the formatting - indentations, and so on.. The fact that high level languages are closer to human language is what makes them easier to work with I've always thought. Markodius while not disagreeing with you the...
by AMcS
Tue Apr 16, 2013 8:44 pm
Forum: RISCOS
Topic: RISC OS; Pros and Cons
Replies: 145
Views: 29809

Re: RISC OS; Pros and Cons

This is my favorite OS for the Raspberry PI. When insert text in a text-box (on Netsurf), the keyboard would keep on imputing the same character until I press a random key. - Again, its another temporary con. Is your keyboard attached DIRECTLY to the Pi or does it go via a USB Hub? I found when typ...
by AMcS
Mon Apr 15, 2013 9:03 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

Agreed - I'd be very surprised at VC++ having an x250+ speed improvement without some radical re-arrangement of the output (compared to the source) being done. That level of speed increase is more likely due to memory caching improving, rather than a simply change in the code. Keeping stuff in L1 o...
by AMcS
Mon Apr 15, 2013 8:35 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

Just to add some spice to the mix. The ARM uses about 2 watts of power, my current AMD 64bit cpu is rated at a (low) 60 watts! i7's (even the eco versions) start at around 45 watts and proceed up to 130 watts. While that's very true (and has probably got the ARM to where it is now) I must admit I'd...
by AMcS
Mon Apr 15, 2013 1:28 am
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

I agree with you. But there is another aspect to the divide between low and high level programming languages that needs to be taken into account. Programming languages are not just for humans to talk to computers. They are important for humans to talk to other humans and, more particularly, to them...
by AMcS
Mon Apr 15, 2013 12:59 am
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

When adding the count feature in on the other platforms open to me, the results are: Norcroft 193cs (was 160 without count) On Raspbian: gcc - unoptimised - 253cs gcc - optimised (-O2) - 100cs I don't know where to find (or if there is) an optimisation setting for Norcroft, but these figures convin...
by AMcS
Sat Apr 13, 2013 10:43 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

93cs for ARM/BASIC 160cs for Norcroft C Or un-optimised Visual C++ on an i5 clocked 3.8 times faster than a Pi, having faster RAM, larger cache and still managing 93.5 Centiseconds (slightly slower than ARM code). Gavin is right to point out the difficulties, but who says that we can't with better ...
by AMcS
Sat Apr 13, 2013 10:25 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

The ARM instruction set is seductive. In the days of the Archimedes, applications tended to be written in assembler; C came later. It can also be a trap. Even short bits of assembly code can be hard to debug (vide supra);). For larger projects debugging and maintenance can be a nightmare. How many ...
by AMcS
Sat Apr 13, 2013 5:59 pm
Forum: RISCOS
Topic: Trying to get an algorithm to run faster on RISC than wheezy
Replies: 71
Views: 11338

Re: Trying to get an algorithm to run faster on RISC than wh

Still damn quick - perhaps wrapping it up in C rather than BASIC would make it quicker ... or you could use DexBasic and run it on the bare metal(!) I doubt you would get it any quicker than that. You're right it's probably as fast as it can get, the BASIC lines are only used to initialise the regi...

Go to advanced search