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Hit the source[^] for the long version (with 6809 ASM).
Summary for the lazy:
Quote: We started with a tile-copying subroutine whose core was a hand-tuned, unrolled loop of machine instructions. Then, to buy a 70-percent speed-up:
1) We replaced this subroutine with a very special manifestation of insanity that commandeered both stack pointers and used pulls and pushes, and every single available register, to draw tiles upside down and horizontally broken.
2) Then we pre-processed the tiles so that drawing them would actually fix them.
3) But then – dammit! – interrupts that occurred during drawing could corrupt the reference tiles.
4) So, to protect the reference tiles, we corrupted the screen buffer instead.
5) But that corruption would be visible.
6) So we changed the tile-placement order to repair – on the fly – any corruption that might have occurred, before it could ever be displayed.
7) And it all worked!
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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It's been twenty years (or more) since I did things like that! Brings back a lot of memories...
My personal favorite (apart from writing self modifying code used to switch on and off the keyboard caps light - don't ask) was discovering that in some mask revisions of the Z80 you could swap nibbles in the A register in one instruction if you didn't care too much about the instruction set...with only a 4MHz processor, 32Kb of ROM, and 4Kb of RAM, that made a big difference!
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OriginalGriff wrote: My personal favorite (apart from writing self modifying code used to switch on and off the keyboard caps light - don't ask)
I never wrote self modifying code to do that; but the dos mode implementation my dosmode replacement keyboard handler (n-key roll over and polling instead of a keystroke buffer) used to toggle the caps/etc lights crashed NT4 (3.5???) on the school PCs. Took forever to figure out that was the cause; the person who triggered the crash was using pound on the keyboard methods to test my tetris clone and I was trying to debug it from dos on my computer at home. 
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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With the hidden enhanced features of Hitachi's replacement for the 6809: the 6309, many more great things could be hacked into the code.
The 6309 in a nutshell [^]
-- RP
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Yes, I know he's dead - there's a thread over the page about it. I was looking up if it's Geoffrey or Jeffrey Barnard, when I found the whole bally play is on youtube[^].
Enjoy, there's a great quiz on 'problem drinking' in there.
speramus in juniperus
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Looks good!
I'll have to watch that later when I get home, because this is actually a video that's NSFW for me... 
Anything that is unrelated to elephants is irrelephant
Anonymous
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The problem with quotes on the internet is that you can never tell if they're genuine
Winston Churchill, 1944
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I'd just like a chance to prove that money can't make me happy.
Me, all the time
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To quote my Dad, "It took him this long...?" 
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Check this[^] out...
SFW; may cause mild flashbacks.
speramus in juniperus
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O
M
G
I can only assume two things:
1) That was all the entries they got.
2) some web designer has way too much time on his hands (and no idea how to design a web site)
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Allegedly it was planned. They set a competition for a school to provide the pictures and gave some prizes out, in return they got a crimbocard.
speramus in juniperus
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Hello all,
After changing the Wifi password and restricting the MAC and IP addresses that were welcome in our Wifi router, that unknown IP address still appears in our network.
Using NetScan (http://www.softperfect.com/products/networkscanner/[^]) provides a complete list of all the devices plugged into the network, but that strange IP is never shown here.
It appears only in Serviio software as a DLNA client; it appears after restarting the computer.
I guess it could be a "virtual IP address" from my own computer.
The only software I use often that could be detected as a DLNA client is VLC or Media Player...
After searching the Internet I've been not lucky to find out how to set the IP address up on both of those software, how to check which is configured or how to disable it completely.
Anyone here knows how to find out which program is creating an IP address that could be understood as a DLNA client and/or how to get the current configuration of VLC and Windows Media Player in regards of being a DLNA client?
No luck finding it in the Internet (my DLNACLIENTGOOGLEFU is not working today  )
PS: I've decided to post the question in a separate post not to answer all the participants with the same answer.
If you want you can get the first post here[^].
Thank you all!
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Did you look at the ipconfig /all (or ipconfig /allcompartments /all) in the command prompt, that should show all interface listed and how they are configured.
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Not there... 
Start thinking of ghosts...
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What router are you using? I have never used the feature but my DIR-655 router has some sort of media sharing built in, that would possibly generate an IP address if enabled.
Another thought try turning off upnp wherever it is mentioned in your router and other network hardware.
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As a naive guess, I guess you could try flooding the IP with requests, your own DDoS attack, if you will. Then simply watch cpu-use in task-manager. Surely though, there'd have to easier and quicker ways.
I guess you could always try to hit the ip with a browser if you haven't already or try some of the SysInternals tools on it. Not sure if ProcMon would do it. Then, there's always trying Ethereal or Wireshark or whatever the equivalent is these days.
Sounds like quite the enjoyable little detective mission you have on your hands.
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Having installed the CCTV to my property some time ago I decided to finish the task of getting in online so I can view from my work/phone etc.
So, all wired up.
Set the DNS settings on the CCTV Unit.
Installed the remote viewer on pc and phone.
Setting the DNS on Sky...FAIL
Those sunshines at Sky do not have an option for a static ip!
So, had to go get a Dynamic DNS host (I settled for No-ip.com as it is at what I consider "The Right Price", ie Free.
Back into the Sky router I go, set the ports, set the Upnp, set firewall etc.
All well and good?
No!
When setting up the Dynamic DNS Host sky does not allow you to use your own account, oh no, you have to use one from dyndns.org.
This would not be a problem except that you have to pay for that! US$25pa (About £19).
It is not the money, pennies a day for home security is not something I would be upset about.
It is the bloody principle!
Why should I not use my own choice of DNS Host?
Why should Sky dictate the terms?
And Force me into a payment rather than use a free service?
Anyway, upshot is I signed up for the dyndns.org hosting and applied it to the router.
All is well!
Well, all was going well, until I tried it and it didn't work.
Damn home address was not as I expected it to be.
Sky seem to take every accepted standard fit and change it for something weird and esoteric just out of malevolence.
Any, several hours of my Sunday wasted, but it does now mean I can sit here at work and view my CCTV feed.
---------------------------------
Obscurum per obscurius.
Ad astra per alas porci.
Quidquid latine dictum sit, altum videtur .
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... and next month they'll add the 'not having a static IP' charge to your account.
speramus in juniperus
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Excellent, so now you can watch your home being burgled, hopefully the burglars will pinch your Sky router.
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I have biolocks, dead bolts and can lock all internal doors remotely.
IF they can get in, I can lock them there long enough to catch them!
I take security very seriously.
Certainly it would not be a good idea to break in at night if I am in bed, I keep a side by side under the bed.
And remember kids...Shoot the Burglar first, then shoot the ceiling.
When the police turn up, reverse the sequence of events and say you fired a warning shot first.
(A policeman told me that).
---------------------------------
Obscurum per obscurius.
Ad astra per alas porci.
Quidquid latine dictum sit, altum videtur .
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Seems like a normal and rational stance to take (for Luton  )
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A normal and rational stance for Luton would be to move.
speramus in juniperus
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Or to stand still, very still.
They cannot see you if you do not move!
---------------------------------
Obscurum per obscurius.
Ad astra per alas porci.
Quidquid latine dictum sit, altum videtur .
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Difficult when their slimy dripping noses are inches from your face and the stench of their acrid breath fills your lungs.
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Ah, so you HAVE been to Luton then!
---------------------------------
Obscurum per obscurius.
Ad astra per alas porci.
Quidquid latine dictum sit, altum videtur .
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Living in the nearby town of Baldock I sometimes have no choice, I try to get through as quickly and as quietly as possible.
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