deater

7 ms·

31.
by deater 2y ago
if anyone is curious, the data structure used in the Apple II version had the idea of "locations" which just hold 4 of the nodes described here. Usually this would be for North/South/East/West, plus there would be
32.
by deater 2y ago
yes. I also made an Atari 2600 version but that one's only a subset of the game (though it's enough can beat it using the speedrun route)
33.
by deater 2y ago
when making the Apple II version of Myst I more or less generated graphs like this by hand based on playing through the game (in order to hook up the data structures for the custom 6502-assembly language engine) I wonder if it would have b
34.
by deater 2y ago
the IA is great for hosting demos too, including running in in-browser emulation. For example see: https://archive.org/details/@deater78
35.
by deater 2y ago
to any fans of TMBG I recommend the two-part AV Club article on them that was just posted a few days ago https://www.avclub.com/they-might-be-giants-interview-set-li...
36.
by deater 2y ago
it's funny how songs with ridiculous lyrics seem unbelievable (especially across generations) can turn out to be real. My father, whose name was Michael, would always sing the chorus from "Playground in my Mind" and we were
37.
by deater 2y ago
having VBLANK available works wonders, see this double-hires code I just put together that only looks nice due to the magic of VBLANK on Apple IIe/IIgs (Apple IIc is much harder to get VBLANK from if you're playing music with inte
38.
When the CRC and TCP Checksum Disagree [pdf](conferences.sigcomm.org)
2 points by deater 2y ago|1 comments
39.
by deater 2y ago
I don't know if there's a good way to search for them. Most of the Lovebyte entries can be found on pouet or demozoo.org but I don't know if there's an easy way to filter out only Linux entries. I've written a few
40.
by deater 2y ago
for those excited about tiny ELF executables, or tiny programs in general, check out the Lovebyte size-coding demoparty happening next weekend. It's likely there will be a few tiny ELF entries there.
41.
by deater 2y ago
do cloud providers give full, unrestricted access to hardware performance counters?
42.
by deater 2y ago
these days most distros lock down perf_event pretty tightly by default, making it fairly useless unless you have admin access to your machine this is due to timing attacks you can do with detailed perf info, but also due to the constant str
43.
by deater 2y ago
if Sally Mckee, who coined the term "Memory Wall", had a nickel for each time it gets mentioned, she'd have a lot of nickels
44.
by deater 2y ago
it's interesting the 4c+ has a Yamaha variant of the chip, probably for the best. Recent other Mockingboard replicas use AY-3-8193 which turn out to sound awful, especially when trying to play ZX-style chiptune/demoscene music
45.
by deater 2y ago
the idea was the original Apple II was made in 1977 as a game machine (Woz wanted to play breakout in software) but there really wasn't much of a concept of what a "Game Machine" was back then, it was mostly a huge hack tryin
46.
by deater 2y ago
it's more complex than that, I think IIe and IIgs have the same register but polarity reversed, the IIc has a weirder interface that generally involves setting up an interrupt through the mouse firmware
47.
by deater 2y ago
you can race the beam, I've written many demos that use this. On the original Apple II you have to do something called "vapor lock" or "reading the floating bus" where you draw a pattern to memory scanned by the vi
48.
by deater 2y ago
the discrete hardware part of the Apple II is fascinating window into 1970s hobbyist electronics sometimes. In the flashing text mode, you might think the flashing text (also used for the cursor) is done in software or something. But no,
49.
by deater 2y ago
if you're excited about Apple II graphics, and also about the new Riven remake, but you don't have the VR hardware for Riven, you can try out the recently released Riven-for-Apple-II subset: http://deater.net/weave
50.
by deater 2y ago
I guess we'll all have to go back to using "linux_logo" for our sysinfo ansi-art needs, though that author seems to spend most of their time on the demoscene/video-game demakes these days.
51.
by deater 2y ago
no, you could very easily clone the Apple II easily and it was done many, many times it's true that eventually Apple started suing people, but until Apple vs Franklin it was unclear if you could even copyright a BIOS. And once that wa
52.
by deater 2y ago
I'm a bit curious about this part of the article: > Unlike all of its major rivals—including the Apple II—the IBM PC was built > with an open architecture. The Apple II, designed by Woz, is famously open, to the point the origina
53.
by deater 3y ago
strange they seem unaware of the RR deterministic debugger work especially as that builds off of the extensive work done on x86 counter determinism here: https://web.eece.maine.edu/~vweaver/projects/deterministic&#
54.
by deater 3y ago
it just seems a shame there are so many projects like this where people spend so much time making it, but then run yet another pong or snake on it. there are a lot of cool game concepts you can do on a 40x48 RGB grid, as shown by some rece
55.
by deater 3y ago
you should make it 40x48 and then you can run Apple II lo-res games on it like Myst or Another World
56.
by deater 3y ago
it pains me to have an ANSI animation called "MS-DOS Escape Sequences"
57.
by deater 3y ago
It's likely it's 3 bytes of BCD (binary coded decimal). It's a handy way of storing things like scores, especially on 6502 processors which have built-in BCD handling support.
58.
by deater 3y ago
My Apple II "Mode 7" demo relies heavily on a "table of squares" multiply alogorithm, though it's signed (vs unsigned) which is even more of a pain on 6502. https://www.youtube.com/watch?v=o8427JsfGw
59.
by deater 3y ago
yes, some people ask why I rushed this out the door rather than finishing it later and releasing at some other party. But I really wanted to support Demosplash, and as a US scener I try to release something nice there each year. I really w
60.
by deater 3y ago
It's a fake BIOS/DOS bootscreen to parody the startup of the original DOS demo (the c64 version of the demo does something similar). It says DOS3.3 as a joke, because Apple DOS3.3 was a real, long-running operating system for the

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