Author Topic: Interesting Hex Constants (Read 7002 times)

Sal Ammoniac · « **on:** April 15, 2016, 04:41:56 pm »

Some lighter fare for Friday..

Here are some interesting Hex constants--anyone have any more?

0xDEADBEEF

0xCAFEBABE

MK14 · « **Reply #1 on:** April 15, 2016, 04:49:50 pm »

0x000FF1CE

0x8BADF00D

0xBADA55

0xD15EA5E

0xFACEFEED

I did NOT cheat. If I had, they would be on the web, somewhere https://en.wikipedia.org/wiki/Hexspeak

kayvee · « **Reply #2 on:** April 15, 2016, 04:50:50 pm »

The second one is definitely more appealing for a Friday

0xDEADFEED goes more with the first.

JimRemington · « **Reply #3 on:** April 15, 2016, 05:00:52 pm »

From the above cited Wikipedia Hexspeak web site:

Quote

0x8BADF00D ("ate bad food") is used by Apple in iOS crash reports, when an application takes too long to launch, terminate, or respond to system events.

MK14 · « **Reply #4 on:** April 15, 2016, 05:05:24 pm »

Quote from: JimRemington on April 15, 2016, 05:00:52 pm

From the above cited Wikipedia Hexspeak web site:
Quote
0x8BADF00D ("ate bad food") is used by Apple in iOS crash reports, when an application takes too long to launch, terminate, or respond to system events.

Quote

0x8BADF00D ("ate bad food") is used by Apple in iOS crash reports, when an application takes too long to launch, terminate, or respond to system events.

That shows that Apple spent the time and trouble to make the hex codes, more useful/funny/informative/human-readable. So impressive.

MK14 · « **Reply #5 on:** April 15, 2016, 05:18:41 pm »

0xFEEDBAC 0x4 0xA 0xEE 0x15 0xEA51 (Feedback for an Electronics Engineer, is easy).

ade · « **Reply #6 on:** April 15, 2016, 05:26:22 pm »

0x55505C18 -- 555 oscillate. Ok I just made that up.

Quote

That shows that Apple spent the time and trouble to make the hex codes, more useful/funny/informative/human-readable. So impressive.

Meanwhile, Microsoft had to apologize for using 0xB16B00B5 ("Big Boobs") to tag Linux virtualization guests on Hyper-V:

http://www.networkworld.com/article/2222804/software/microsoft-code-contains-the-phrase--big-boobs------yes--really.html

MK14 · « **Reply #7 on:** April 15, 2016, 05:45:47 pm »

0x1C5
0x741 0xFEEDBAC
0x7490 0xDECADE
0x74181 0xADD

neil555 · « **Reply #8 on:** April 15, 2016, 05:48:43 pm »

0xCAB00D1E (caboodle)

MK14 · « **Reply #9 on:** April 15, 2016, 06:08:19 pm »

0xEEB106 0xCAB00D1E5 (EEVBLOG CABOODLES)

Kilrah · « **Reply #10 on:** April 15, 2016, 07:22:08 pm »

"café" being "coffee" in French, and us using English enough to make the 2nd part funny.

Not a cheat, taken by me many years ago, on a program that I (obviously poorly) coded but of course not with such an intent.

AlxDroidDev · « **Reply #11 on:** April 15, 2016, 07:24:40 pm »

0xB00B5

free_electron · « **Reply #12 on:** April 15, 2016, 08:02:01 pm »

0x1coffee
0xabba

MK14 · « **Reply #13 on:** April 15, 2016, 08:08:00 pm »

Quote from: free_electron on April 15, 2016, 08:02:01 pm

0x1coffee
0xabba

0xABBA ...

0x1D01D01D01D01D0 https://en.wikipedia.org/wiki/I_Do,_I_Do,_I_Do,_I_Do,_I_Do

0x505 https://en.wikipedia.org/wiki/SOS_(ABBA_song)

MK14 · « **Reply #14 on:** April 15, 2016, 08:53:44 pm »

0xCAFFE 0xCOFFEE
0x6A1A0 0xCOFFEE
0x1CED 0xCOFFEE
0xD06610 0xCOFFEE
0xAFF06A10 0xCOFFEE
0xCAFE 0xCOFFEE
0xDEADE1E 0xCOFFEE

daqq · « **Reply #15 on:** April 15, 2016, 08:56:09 pm »

0x5f3759df

See: https://en.wikipedia.org/wiki/Fast_inverse_square_root

miguelvp · « **Reply #16 on:** April 15, 2016, 09:41:33 pm »

Quote from: daqq on April 15, 2016, 08:56:09 pm

0x5f3759df

See: https://en.wikipedia.org/wiki/Fast_inverse_square_root

0x5F3759FD works better for me

https://www.eevblog.com/forum/microcontrollers/calculating-square-roots/msg703336/#msg703336

And some history about where that number came from an investigation done in this forum:

https://www.eevblog.com/forum/microcontrollers/calculating-square-roots/msg704023/#msg704023

KE5FX · « **Reply #17 on:** April 15, 2016, 11:19:47 pm »

I've never been able to come up with a longer English word than 0xDEFACED. Anyone got an 8-character word?

ade · « **Reply #18 on:** April 15, 2016, 11:39:10 pm »

11 letter word: a110ca7ab1e

from: http://nedbatchelder.com/text/hexwords.html

KE5FX · « **Reply #19 on:** April 15, 2016, 11:42:12 pm »

Quote from: ade on April 15, 2016, 11:39:10 pm

11 letter word: a110ca7ab1e

from: http://nedbatchelder.com/text/hexwords.html

Yeah, no, that doesn't count, one word in English, no '1337sp33k.

MK14 · « **Reply #20 on:** April 15, 2016, 11:48:20 pm »

Quote from: KE5FX on April 15, 2016, 11:19:47 pm

I've never been able to come up with a longer English word than 0xDEFACED. Anyone got an 8-character word?

0xFABACEAE

https://en.wikipedia.org/wiki/Fabaceae

KE5FX · « **Reply #21 on:** April 16, 2016, 12:15:28 am »

Quote from: MK14 on April 15, 2016, 11:48:20 pm

Quote from: KE5FX on April 15, 2016, 11:19:47 pm
I've never been able to come up with a longer English word than 0xDEFACED. Anyone got an 8-character word?

0xFABACEAE

Oh, that's a good one. Latin, but I'll allow it.

kc8apf · « **Reply #22 on:** April 16, 2016, 01:06:58 am »

Facebook puts face:booc in their IPv6 addresses

Sent from my Nexus 5X using Tapatalk

rrinker · « **Reply #23 on:** April 16, 2016, 02:07:29 am »

FACE0FF

(for hockey or John Travolta/Nick Cage fans)

I can't for the life of me remember the one we used to use all the time for Novell Netware network names.


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Author Topic: Interesting Hex Constants (Read 7002 times)

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