Editing Hexspeak

{{Short description|Novelty form of variant English spelling}}
'''Hexspeak''' is a novelty form of variant [[English language|English]] spelling using the hexadecimal digits. Created by programmers as memorable [[magic number (programming)|magic numbers]], hexspeak words can serve as a clear and unique identifier with which to mark memory or data.

[[hexadecimal|Hexadecimal notation]] represents numbers using the 16 digits <code>0123456789ABCDEF</code>. Using only the letters <code>ABCDEF</code> it is possible to spell several words. Further words can be made by treating some of the decimal numbers as letters - the digit "<code>0</code>" can represent the letter "O", and "<code>1</code>" can represent the letters "I" or "L". Less commonly, "<code>5</code>" can represent "S", "<code>7</code>" represent "T", "<code>12</code>" represent "R" and "<code>6</code>" or "<code>9</code>" can represent "G" or "g", respectively. Numbers such as <code>2</code>, <code>4</code> or <code>8</code> can be used in a manner similar to [[leet]] or [[rebus]]es; e.g. the word "defecate" can be expressed either as <code>DEFECA7E</code> or <code>DEFEC8</code>.

== Notable magic numbers ==
{{further|Magic number (programming)}}
Many [[computer processor]]s, [[operating system]]s, and [[debugger]]s make use of magic numbers, especially as a [[Magic number (programming)#Magic debug values|magic debug value]].

{| class=wikitable
|-
!style="background:#D0E0FF"| Code
!style="background:#D0E0FF"| Decimal
!style="background:#D0E0FF"| Description
|-
| <code>0x0000000FF1CE</code> || 1044942 || ("office") is used as the last part of product codes ([[Globally unique identifier|GUID]]) for [[Microsoft Office]] components (visible in registry under the <code>HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall</code> registry key).
|-
| <code>0x00BAB10C</code> || 12235020 || ("uber (ooba) block") is used as the magic number for the [[ZFS]] uberblock.
|-
| <code>0x1BADB002</code> || 464367618 || ("1 bad boot"<ref>{{cite web|url=http://ftp.lyx.org/pub/mach/mach4/multiboot/multiboot-archive|title=Multiboot mailing list archive}}</ref>) [[Multi-booting|Multiboot]] header magic number.<ref>{{cite web|url=https://www.gnu.org/software/grub/manual/multiboot/multiboot.html#Header-magic-fields |title=Multiboot specifications}}</ref>
|-
| <code>0x4B1D</code> || 19229 || ("forbid") was a password in some calibration consoles for developers to peer deeper into [[control register|control registers]] outside the normal calibration memory range.{{citation needed|date=June 2015}}
|-
| <code>0x50FFC001</code> || 1358938113|| ("soff[t] cool") was used as a Macintosh debug value to help identify nil references, and later to cause bus failures.<ref>{{cite web|url=https://www.inventus.org/posterous/file/2012/07/9621872-out2.pdf|title=Macintosh Technical Notes 1992}}</ref><ref name="cafebaberef"/>
|-
| <code>0x8BADF00D</code> || 2343432205 || ("ate bad food") is used by [[Apple Inc.|Apple]] in [[IOS (Apple)|iOS]] crash reports, when an application takes too long to launch, terminate, or respond to system events.<ref name="DAC1">{{cite web |url=https://developer.apple.com/iphone/library/technotes/tn2008/tn2151.html |title=Technical Note TN2151: Understanding and Analyzing iPhone OS Application Crash Reports |url-status=dead |archive-url=https://web.archive.org/web/20120705081524/http://developer.apple.com/library/ios/ |archive-date=2012-07-05 }}</ref>
|-
| <code>0xABADBABE</code> || 2880289470 || ("a bad babe") was/is used by [[Microsoft]]'s [[Windows 7]] to trigger a debugger break-point, probably when a USB device is attached<ref>{{cite web|url=https://daniel.haxx.se/blog/2011/10/28/whos-0xabadbabe-and-why/ |title=Who's 0xabadbabe and why?|date=28 October 2011 }}</ref>
|-
| <code>0xACE0FBA5E</code> || 46406810206 || ("Ace of Base") [[Ace of Base]] is a swedish pop band, which was very successful in the nineties
|-
| <code>0xB105F00D</code> || 2969956365 || ("BIOS food") is the value of the low bytes of last four registers on ARM PrimeCell compatible components (the component_id registers), used to identify correct behaviour of a memory-mapped component.
|-
| <code>0xB16B00B5</code> || 2976579765 || ("big boobs") was required by Microsoft's [[Hyper-V]] [[hypervisor]] to be used by [[Linux]] guests as their "guest signature".<ref>{{cite web|url=http://www.spinics.net/lists/linux-driver-devel/msg15311.html|title=Staging: hv: vmbus_drv: Move the content of hv.h to hyperv_vmbus.h}}</ref> One proposal suggested changing it to <code>0x0DEFACED</code> ("defaced"),<ref>{{cite web|url=https://lkml.org/lkml/2012/7/13/261|title=hv: Change the guest ID value}}</ref> but it was instead initially changed to decimal and then replaced entirely.<ref>{{cite web | url=https://github.com/torvalds/linux/commit/83ba0c4f3f317270dae5597d8044b795d119914c | title=Drivers: Hv: Cleanup the guest ID computation · torvalds/Linux@83ba0c4 | website=[[GitHub]] }}</ref>
|-
| <code>0x0B00B135</code> || 184594741|| ("boobies") was likewise required by Microsoft's Hyper-V hypervisor to be used by a user of XEN as their user id.<ref>{{cite web|url=https://github.com/torvalds/linux/commit/3e7ee4902fe6996048f03433dd111426db3cfa92#diff-d25bf4c3508cba9961dd0c195138be2fR62|title=Staging: hv: add the Hyper-V virtual bus|website=[[GitHub]]}}</ref> It was removed on January 22, 2010.<ref>{{cite web|url=https://github.com/torvalds/linux/commit/a73e6b7c508f610eeb315c443d9ac79041124af0#diff-d25bf4c3508cba9961dd0c195138be2fL45|title=Staging: hv: Remove xen legacy code and check for Hyper-V|website=[[GitHub]]}}</ref> 
|-
| <code>0xBAAAAAAD</code> || 3131746989 || ("baaaaaad") is used by Apple's iOS exception report to indicate that the log is a stackshot of the entire system, not a crash report.<ref name="developer.apple.com">{{cite web | url=https://developer.apple.com/library/ios/technotes/tn2151/_index.html | title=Apple Developer Documentation }}</ref>
|-
| <code>0xBAADF00D</code> || 3131961357 || ("bad food") is used by Microsoft's LocalAlloc(LMEM_FIXED) to indicate uninitialised allocated heap memory when the debug heap is used.<ref>{{cite web|url=http://www.nobugs.org/developer/win32/debug_crt_heap.html#table|title=Win32 Debug CRT Heap Internals}}</ref>
|-
| <code>0xBAD22222</code> || 3134333474 || ("bad too repeatedly") is used by Apple's iOS exception log to indicate that a [[Voice over IP|VoIP]] application has been terminated by iOS because it resumed too frequently.<ref name="developer.apple.com"/>
|-
| <code>0xBADDCAFE</code> || 3135097598 || ("bad cafe") is used by [[Libumem]] to indicate uninitialized memory area.
|-
| <code>0xCAFEB0BA</code> || 3405689018 || ("cafe boba") is used by datp as canned return value for QKit MFCC keyword detection for Host GUI development since his colleague likes coffee (and maybe boba, too).{{No source|date=August 2024}}
|-
| <code>0xB0BABABE</code> || 2965027518 || ("boba babe") is used by pton as Host GUI Ack to QKit MFCC keyword detection response.
|-
| <code>0xBEEFBABE</code> || 3203381950 || ("beef babe") is used by the 1997 video game [[Frogger (1997 video game)|''Frogger'']] to detect a [[stack buffer overflow]].
|-
| <code>0xB000 0xDEAD</code> || 2952847021 || ("boo dead") was displayed by [[PA-RISC]] based [[HP 3000]] and [[HP 9000]] computers upon encountering a "system halt" (aka "low level halt").<ref>{{cite web|url=http://www.3kranger.com/HP3000/mpeix/en-mpe60/32650-90851/32650-90851.pdf |title=MPE Error Messages (page 30-66)}}</ref>
|-
| <code>0xC00010FF</code> || 3221229823 || ("cool off") is used by Apple in iOS crash reports, when application was killed in response to a thermal event.<ref name="DAC1"/>
|-
| <code>C15C:0D06:F00D</code> || 212601099710477 || ("cisco dog food") used in the [[IPv6 address]] of www.cisco.com on [[World IPv6 Day]]. "Dog food" refers to Cisco [[Eating your own dog food|eating its own dog food]] with IPv6.
|-
| <code>0xCAFEBABE</code> || 3405691582 || ("cafe babe") is used by [[Plan 9 From Bell Labs|Plan 9]]'s libc as a poison value for memory pools.<ref>{{cite web| url=https://code.9front.org/hg/plan9front/file/fbd2319ae4be/sys/src/libc/port/pool.c#l126 |title=9front system}}</ref> It is also used by [[Mach-O]] to identify [[Universal binary|Universal]] object files, and by the [[Java (programming language)|Java programming language]] to identify [[Java bytecode]] class files. It was originally created by [[NeXTSTEP]] developers as a reference to the baristas at [[Peet's Coffee & Tea]].<ref name="cafebaberef">{{cite web|url=http://www.artima.com/insidejvm/whyCAFEBABE.html |title=Why Cafebabe |publisher=Artima.com |access-date=2009-10-01}}</ref>
|-
| <code>0xCAFED00D</code> || 3405697037 || ("cafe dude") is used by [[Java (software platform)|Java]] as a magic number for their [[pack200]] compression.<ref>{{cite web|url=http://download.oracle.com/javase/6/docs/technotes/guides/pack200/pack-spec.html#tocArcHea|title=Pack200: A Packed Class Deployment Format For Java Applications|access-date=2010-11-03}}</ref>
|-
| <code>0xCEFAEDFE</code> || 3472551422 || ("face feed") is used by Mach-O to identify flat (single architecture) object files. In [[little endian]] this reads <code>FEEDFACE</code>, "Feed Face".
|-
| <code>0x0D15EA5E</code> || 219540062 || ("zero disease") is a flag that indicates regular boot on the [[GameCube]] and [[Wii]] consoles.<ref>{{cite web|url=http://hitmen.c02.at/files/yagcd/yagcd/chap4.html#sec4.2.1.1.2|title=Yet Another Gamecube Documentation: Dolphin-OS Globals}}</ref><ref>{{cite web|url=http://wiibrew.org/wiki/Memory_Map|title=Wiibrew: Memory Map}}</ref>
|-
| <code>0xDABBAD00</code> || 3669732608 || ("dabba doo") is the name of a blog on computer security.<ref>{{cite web|url=http://0xdabbad00.com |title=0xdabbad00.com}}</ref>
|-
| <code>0xDEAD2BAD</code> || 3735890861 || ("dead too bad") was used to mark allocated areas of memory that had not yet been initialised on [[Sequent Computer Systems|Sequent]] [[Dynix|Dynix/ptx]] systems.
|-
| <code>0xDEADBAAD</code> || 3735927469 || ("dead bad") is used by the Android libc abort() function when native heap corruption is detected.
|-
| <code>0xDEADBABE</code> || 3735927486 || ("dead babe") is used by IBM [[Jikes RVM]] as a sanity check of the stack of the primary thread.<ref>{{cite web |url=http://svn.sourceforge.net/viewvc/jikesrvm/rvmroot/trunk/tools/bootImageRunner/ia32/libvm.c?revision=15664&view=markup: |title=DEADBABE sanity check |access-date=2009-10-01 }}{{dead link|date=December 2017 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
|-
| <code>0xDEADBEAF</code> || 3735928495 || ("dead beaf") is part of the signature code of ''[[Jazz Jackrabbit 2]]'' tileset files.<ref>{{cite web|title=J2T File Format|url=http://www.jazz2online.com/wiki/index.php?J2T_File_Format}}</ref> Level files have less room for their signatures and use <code>0xBABE</code> ("babe") instead.<ref>{{cite web|title=J2L File Format|url=http://www.jazz2online.com/wiki/index.php?J2L_File_Format}}</ref> It is also the header of campaign gamesaves used in the [[Halo (franchise)|''Halo'' game series]].
|-
| <code>deadbeef-dead-beef-dead-beef00000075</code> || 29599075508304910171<wbr>2519384016336453749
| ("dead beef") is the [[GUID]] assigned to hung/dead [[virtual machines]] in Citrix [[XenServer#Hosts|XenServer]].
|-
| <code>[[0xDEADBEEF]]</code> || 3735928559 || ("dead beef") is frequently used to indicate a software crash or deadlock in embedded systems. <code>0xDEADBEEF</code> was originally used to mark newly allocated areas of memory that had not yet been initialized—when scanning a memory dump, it is easy to see the <code>0xDEADBEEF</code>. It is used by IBM [[RS/6000]] systems, [[Mac OS]] on 32-bit [[PowerPC]] processors, and the [[Commodore International|Commodore]] [[Amiga]] as a magic debug value. On [[Sun Microsystems]]' [[Solaris (operating system)|Solaris]], it marks freed kernel memory. The DEC Alpha SRM console has a background process that traps memory errors, identified by PS as "BeefEater waiting on 0xdeadbeef".<ref>{{cite web|url=http://www.catb.org/~esr/jargon/html/D/DEADBEEF.html |title=DEADBEEF |work=Jargon File |access-date=2009-10-01}}</ref>
|-
| <code>0xDEADC0DE</code> || 3735929054 || ("[[dead code]]") is used as a marker in [[OpenWrt]] firmware to signify the beginning of the to-be created jffs2 filesystem at the end of the static firmware.
|-
| <code>0xDEADDEAD</code> || 3735936685 || ("dead dead") is the bug check (STOP) code displayed when invoking a [[blue screen of death|Blue Screen of Death]] either by telling the kernel via the attached debugger, or by using a special keystroke combination.<ref>{{cite web|url=http://msdn.microsoft.com/en-us/library/ms797162.aspx |title=Bug Check 0xDEADDEAD: MANUALLY_INITIATED_CRASH, MSDN |publisher=msdn.microsoft.com |date=2009-10-01 |access-date=2009-10-13 |url-status=dead |archive-url=https://web.archive.org/web/20091002111240/http://msdn.microsoft.com/en-us/library/ms797162.aspx |archive-date=October 2, 2009 }}</ref> This is usually seen by driver developers, as it is used to get a memory dump on Windows NT based systems. An alternative to <code>0xDEADDEAD</code> is the bug check code <code>0x000000E2</code>,<ref>{{cite web|url=http://msdn.microsoft.com/en-us/library/ms797144.aspx |title=Bug Check 0xE2: MANUALLY_INITIATED_CRASH, MSDN |publisher=msdn.microsoft.com |date=2009-10-01 |access-date=2009-10-13 |url-status=dead |archive-url=https://web.archive.org/web/20090731130050/http://msdn.microsoft.com/en-us/library/ms797144.aspx |archive-date=July 31, 2009 }}</ref> as they are both called MANUALLY_INITIATED_CRASH as seen on the Microsoft Developer Network.
|-
| <code>0xDEADD00D</code> || 3735932941 || ("dead dude") is used by [[Android (operating system)|Android]] in the [[Dalvik (software)|Dalvik virtual machine]] to indicate a VM abort.
|-
| <code>0xDEADFA11</code> || 3735943697 || ("dead fall" or "dead fail") is used by Apple in iOS crash reports, when the user force quits an application.<ref name="DAC1"/>
|-
| <code>0xDEAD10CC</code> || 3735883980 || ("dead lock") is used by Apple in iOS crash reports, when an application holds on to a system resource while running in the background.<ref name="DAC1"/>
|-
| <code>0xDEADFEED</code> || 3735944941 || ("dead feed") is used by Apple in iOS crash reports, when a timeout occurs spawning a service.
|-
| <code>0xDECAFBAD</code> || 3737844653 || ("decaf bad") is often found in coding as an easily recognized magic number when hex dumping memory.
|-
| <code>0xDEFEC8ED</code> || 3741239533 || ("defecated") is the magic number for [[OpenSolaris]] [[core dump]]s.<ref>{{cite web |url=http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/sys/dumphdr.h#45 |title=Opensolaris header line 45 for 0xDEFEC8ED |publisher=src.opensolaris.org |access-date=2011-07-12 |url-status=dead |archive-url=https://web.archive.org/web/20110929225516/http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/sys/dumphdr.h#45 |archive-date=2011-09-29 }}</ref>
|-
| <code>0xD0D0CACA</code> || 3503344330|| ("[[wikt:doo-doo#English|doo-doo]] [[wikt:caca#English|caca]]") is the uninitialized value of GPIO values on the Nvidia [[Tegra]] X1.{{citation needed|date=March 2016}}
|-
| <code>0xE011CFD0</code> || 3759263696 || ("docfile0") is used as a [[magic number (programming)|magic number]] for Microsoft Office files. In [[little endian]] this reads <code>D0CF11E0</code>, "docfile0".<ref>{{cite web|url=http://support.microsoft.com/kb/318326 |title=Documents That Are Supported by the Office Filter}}</ref>
|-
| <code>0xF0CACC1A</code> || 4039822362 || ("[[focaccia]]") the 8-letter hexspeak word in the dictionary with the highest scrabble score (scoring 17 in the English version).
|-
| <code>0xF1AC</code> || 61868 || ("FLAC") is used as the [[Free Lossless Audio Codec]]'s audio format tag.<ref>{{cite web |url=https://docs.microsoft.com/en-us/windows/win32/medfound/audio-subtype-guids |title=Audio Subtype GUIDs - Win32 apps |publisher=Microsoft |date=2018-05-31 |access-date=2021-03-06}}</ref>
|-
| <code>face:b00c</code> || 4207849484 || ("[[facebook]]") used in the [[IPv6 address]]es of www.facebook.com.<ref>{{Cite news|url=https://www.theregister.co.uk/2015/07/08/facebook_casts_a_hex_on_dns/|title=Facebook casts a hex with self-referential IPv6|access-date=2017-10-21|language=en}}</ref>
|-
| <code>0xFACEFEED</code> || 4207869677 || ("face feed") is used by Alpha servers running [[Windows NT]]. The Alpha [[Hardware Abstraction Layer]] (HAL) generates this error when it encounters a hardware failure.<ref>{{cite web|url=http://support.microsoft.com/kb/132349 |title=0xFACEFEED |work=Technet |publisher=Microsoft |date=2006-11-01 |access-date=2009-10-01}}</ref>
|-
| <code>0xFBADBEEF</code> || 4222467823 || ("bad beef") is used in the [[WebKit]] and [[Blink (layout engine)|Blink]] layout engines to indicate a known, unrecoverable error such as out of memory.<ref>{{cite web|url=https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/Source/wtf/Assertions.h&l=133 |title=Chromium Assertions.h line 133| access-date=2014-03-27}}</ref>
|-
| <code>0xFEE1DEAD</code> || 4276215469 || ("feel dead") is used as a magic number in the Linux reboot system call.<ref>{{Cite web |title=reboot.h « linux « uapi « include - kernel/git/torvalds/linux.git - Linux kernel source tree |url=https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/reboot.h |access-date=2022-11-10 |website=git.kernel.org}}</ref> Other magic numbers to reboot the machine are 672274793, 85072278, 369367448 and 537993216 which in hex translate respectively to 0x28121969, 0x5121996, 0x16041998 and 0x20112000, the birth dates of [[Linus Torvalds]] and his three daughters.<ref>{{Cite web |last1=Isaac |last2=Isaac |date=2015-08-04 |title=Patricia Torvalds: the successor to her father's legacy? |url=https://www.linuxadictos.com/en/Patricia-Torvalds-Linus-Daughter-Aims-Ways.html |access-date=2022-11-10 |website=Linux Adictos |language=en}}</ref>
|-
| <code>0xFEEDBABE</code> || 4276992702 || ("feed babe") is the magic number used to indicate the beginning of an [[OpenRG]] flash partition descriptor.<ref>{{cite web|url=https://lists.openwrt.org/pipermail/openwrt-devel/2013-June/020315.html|title=OpenWrt-Devel: PATCH - add {{as written|sup|ort [sic]}} for Option GlobeSurfer 3|access-date=2015-12-14|archive-url=https://web.archive.org/web/20160329221818/https://lists.openwrt.org/pipermail/openwrt-devel/2013-June/020315.html|archive-date=2016-03-29|url-status=dead}}</ref>
|-
| <code>[[0xFEEDC0DE]]</code> || 4276994270 || ("feed code") is used as filling pattern by the [[OS-9]] operating system when initializing its [[random-access memory|RAM]].<ref>{{cite web|url=https://archive.org/stream/os968kOem_v9.9/68k_oem_djvu.txt|title=OS-9 for 68K Processors OEM Installation Manual|date=January 2008 }}</ref>
|-
| <code>0xFEEDFACECAFEBEEF</code> || 18369614221190020847 || ("feed face cafe beef") is the magic number used to send as a password via serial wire to rescue some [[NXP Semiconductors|NXP]] created controller devices from boot failures.<ref>{{cite web|url=https://www.nxp.com/docs/en/application-note/AN4674.pdf|title=NXP Application Note: Qorivva Boot Assist Module Application}}</ref><ref>{{cite web|url=https://community.nxp.com/thread/334013|title=NXP Community: Censored Device - Password Known|date=30 October 2014 }}</ref><ref>{{cite web|url=https://community.nxp.com/thread/325826|title=NXP Community: RAppID boot loader error|date=25 June 2014 }}</ref>
|-
| <code>0xFFBADD11</code> || 4290436369 || ("bad [[Dynamic-link library|DLL]]"): Used by [[Windows]] internally.{{Citation needed|date=April 2019}}
|-
| <code>0xF00DBABE</code> || 4027431614 || ("food babe"): The Ledger Nano hardware [[cryptocurrency wallet]] used this magic number in the process of signing that was exploited.<ref>{{cite web|url=https://www.youtube.com/watch?v=nNBktKw9Is4 |archive-url=https://ghostarchive.org/varchive/youtube/20211212/nNBktKw9Is4| archive-date=2021-12-12 |url-status=live|title=LiveOverflow@YouTube: Hardware Wallet Hack: Ledger Nano S|website=[[YouTube]]|date=28 December 2018 }}{{cbignore}}</ref>
|}

== Alternative letters ==
Many computer languages require that a hexadecimal number be marked with a prefix or suffix (or both) to identify it as a number. Sometimes the prefix or suffix is used as part of the word.
* The [[C (programming language)|C programming language]] uses the "0x" prefix to indicate a hexadecimal number, but the "0x" is usually ignored when people read such values as words. C also allows the suffix L to declare an integer as <code>long</code>, or LL to declare it as <code>long long</code>, making it possible to write "0xDEADCELL" (dead cell). In either case a U may also appear in the suffix to declare the integer as <code>unsigned</code>, making it possible to write "0xFEEDBULL" (feed bull).
* In the (non-Unix) [[x86-assembly|Intel assembly language]], hexadecimal numbers are denoted by a "h" suffix, making it possible to write "0beach" (beach). Note that numbers in this notation that begin with a letter must be prefixed with a zero to distinguish them from variable names. A Unix-style assembler uses C language convention instead (but non-Unix-style assemblers are also available on x86 Unix-type OSes).
* [[Visual Basic]] and all previous Microsoft BASICs such as QuickBasic, GWBasic, BASICA and ColorBASIC, use a &H prefix, for example, "&HEADED" (headed) and "&HADC0FFEE" (had coffee).
* In Pascal and several [[assembly language]]s ([[6502]],[[6809]],...), hexadecimal numbers are denoted by a "$" prefix. This allows for words starting with the letter "S", for example "$EED" (seed).
* In [[Elektronika B3-34|B3-34]] [[programmable calculator]]s, an alternative hexadecimal alphabet was used, where the symbols "−", "L", "C", "Г", "E", and "&nbsp;" (space) were used instead of Latin letters. Using these, it was possible to display messages like "EГГ0Г" (error).

== PlayStation 3 RSX ==

In reverse engineering aspects of the Sony [[PlayStation 3]], a number of hexspeak codes were found to either trigger, affect or were present in aspects of communicating to and through the PlayStation 3 Hypervisor in communication to its GPU, the [[RSX Reality Synthesizer]].<ref name="hexspeak_rsx">{{cite web|url=http://www.psdevwiki.com/ps3/RSXFIFOCommands |title=RSXFIFOCommands - PS3 Developer Wiki|publisher=psdev wiki|date=2014-05-20|access-date=2017-11-01}}</ref>

These projects were largely born out of PS3 homebrew operating on the PS3's [[OtherOS]] which allowed Linux to be installed, initially with extremely limited GPU access.

{| class=wikitable
|-
!style="background:#D0E0FF"| Code
!style="background:#D0E0FF"| Description
|-
| <code>0x1337BEEF</code>, <code>0x1337F001</code>, <code>0x1337BEEF</code>|| Found as part of the RSX Descriptor.
|-
| <code>0xF00DBEEF</code> || The RSX Semaphore Value
|-
| <code>0x1337C0D3</code> and <code>0x1337BABE</code> || Begin semaphore value and pad, from the system.<ref name="rsx_control">{{cite web|url=https://github.com/RPCS3/rpcs3/blob/master/rpcs3/Emu/Cell/lv2/sys_rsx.cpp |title=rpc3/sys_rsx.cpp|publisher=RPCS3 on github|date=2017-10-28|access-date=2017-11-01}}</ref>
|}

== See also ==

* [[Leet]]
* [[file (command)]]

== References ==
{{Reflist|30em}}

==External links==
* [http://www.datagenetics.com/blog/march32013/index.html List of real 3 to 7 hex character English words]
* [http://bada55.io/ BADA55.io - CSS hex color words for web developers]
* {{cite web |url = https://www.paulirish.com/2009/memorable-hex-colors/ |title = Memorable Hex Colors |author = Paul Irish |author-link = Paul Irish |date = 4 December 2009}}

[[Category:Source code]]
[[Category:Nonstandard spelling]]
[[Category:Computer humour]]
[[Category:Hexadecimal numeral system]]