Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 7/1/84; site seismo.UUCP Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!zehntel!hplabs!hao!seismo!keith From: keith@seismo.UUCP (Keith Bostic) Newsgroups: net.jokes Subject: Re: Machine Code Mnemonics Message-ID: <1669@seismo.UUCP> Date: Thu, 28-Jun-84 14:42:12 EDT Article-I.D.: seismo.1669 Posted: Thu Jun 28 14:42:12 1984 Date-Received: Mon, 2-Jul-84 00:17:54 EDT References: <1166@sdcrdcf.UUCP> Organization: Center for Seismic Studies, Arlington, VA Lines: 676 Here is a pretty comprehensive list. Enjoy. Slip-slidin' away-yeah-yeah, Keith ARPA: keith@seismo UUCP: seismo!keith ============================================================================ AAC Alter All Commands AAD Alter All Data AAO Add And Overflow AAR Alter At Random AB Add Backwards ABR Add Beyond Range ADB Another Damn Bug [UNIX] AFF Add Fudge Factor AFHB Align Fullword on Halfword Boundary AFP Abnormalized Floating Point AFVC Add Finagle's Variable Constant [the constant that must be added to make your data support your conclusions] AGB Add GarBage AI Add Improperly AIB Attack Innocent Bystander AMM Answer My Mail AOI Annoy Operator Immediate AR Alter Reality ARN Add and Reset to Non-zero ARZ Add and Reset to Zero AS Add Sideways AT Accumulate Trivia AWP Argue with programmer AWTT Assemble With Tinker Toys BAC Branch to Alpha Centauri BAF Blow All Fuses BAH Branch And Hang BALC Branch And Link Cheeseburger BAW Bells And Whistles BB Branch on Bug BBBB Byte Baudy Bit and Branch BBI Branch on Burned-out Indicator BBL Branch on Burned-out Lamp BBLB Branch on Blinking Light Bulb BCB Burp and Clear Bytes BCF Branch on Chip box Full BCIL Branch Creating Infinite Loop BCR Backspace Card Reader BCU Be Cruel and Unusual BCU Burn out CPU BD Backspace Disk BD Branch to Data BDC Break Down and Cry BDM Branch and Disconnect Memory BDT Burn Data Tree [next opcode after decorate data tree] BE Branch Everywhere [As in HHGttG's Infinite Improbability Computer] BF Belch Fire BFM Be Fruitful and Multiply. BLC Branch and Loop Continuous BLM Branch, Like, Maybe BLMWM Branch, Like, Maybe, wow, Man BLR Branch and Lose Return BMI Branch on Missing Index BMY Branch Maybe BNA Branch to Nonexistent Address BNCB Branch Never Come Back BNR Branch for No Reason BOD Branch on Operator Desperate BOP Boot Operator BOP Byte Operator BOT Branch on Tree. BPB Branch on Program Bug BPD Branch on Programmer Debugging BPIM Bury Programmer In Manuals BPO Branch to Power Off BR Byte and Run BRA BRanch Anywhere BRA Branch to Random Address BRI BRanch Indefinitely BRO BRanch to Oblivion BSC Burst Selector Channel BSM Branch and Scramble Memory BSO Branch on Sleeping Operator BSST BackSpace and Stretch Tape BTD Byte The Dust BTJ Branch and Turn Japanese BTO Branch To Oblivion BW Branch on When BW Branch on Whim BWABL Bells, Whistles and Blinking Lights BWOP BeWilder Operator CAF Convert ASCII to Farsii CAI Corrupt Accounting Information CAIL Crash After I Leave CAT Confused And Tired [UNIX] CBA Compare and Branch Anyway CBNC Close, But No Cigar CBS Clobber BootStrap CC Call Calvary CC Crappy Control [UNIX] CC Compliment Core CCB Chocolate Chip Byte-mode CCB Consult Crystal Ball CCCI Clear Condition-Codes Indefinitely CCCP Conditionally corrupt current process CCD Choke, Cough and Die CCD Clear Current Directory CCR Change Channels Random CCS Chinese Character Set CCWR Change Color of Write Ring CD Complement disk CF Come From (replaces Go To) CFE Call Field Engineer [What do you call them?] CFS Corrupt file structure CG Convert to Garbage CH Create Havoc CHAPMR CHAse Pointers around Machine Room CHSE Compare Half-words and Swap if Equal. CIB Change Important Byte CIMM Create Imaginary Memory Map CIZ Clear If Zero. CM Circulate Memory CM Confuse Memory CMD CPU Melt Down CMD Compare Meaningless Data CML Compute Meaning of Life (72) CMP Create Memory Prosthesis CMS Click MicroSwitch CN Compare Nonsensically CNB Cause Nervous Breakdown COLB Crash for Operator's Lunch Break COM Clear Operator's Mind. COMF COMe From COS Copy Object Code to Source File COWHU Come Out With your Hands Up CP Compliment programmer CP%FKM CPU - Flakeout mode CP%WM CPU - Weird Mode CPB Create Program Bug CPR Compliment PRogrammer("Aren't you cute!") CRASH Continue Running after Stop or Halt CRM Clear Random Memory CRM Create Memory CRN Convert to Roman Numerals CRYPT reCuRsive encrYPt Tape mnemonic [UNIX] CS Crash System CSL Curse and Swear Loudly CSN Call Supervisor Names CSNIO Crash System on Next I/O CSU Call Self Unconditional [the ultimate in recursive programming] CSYS Crash SYStem CTDMR Change Tape Density, Mid Record CUC Cheat Until Caught CVFL Convert Floating to Logical CVFP ConVert FORTRAN to PASCAL CVG ConVert to Garbage CWAH Create Woman And Hold CWDC Cut Wires and Drop Cores DA Develop Amnesia DAC Divide and Conquer. DAUF Delete All Useless Files [would YOU trust a computer that far?] DBL Desegregate Bus Lines DBR Debase Register DBZ Divide By Zero DC Degauss core DC Divide and Conquer DCAD Dump Core And Die DCD Drop Cards Double DCGC Dump Confusing Garbage to Console DCI Disk Crash Immediate DCON Disable CONsole DCT Drop Cards Triple DCWPDGD Drink Coffee, Write Program, Debug, Get Drunk DD Destroy Disk DD Drop Disk DDC Daily During Calculations DDOA Drop Dead On Answer DDS Delaminate Disk Surface DDWB Deposit Directly in Wastepaper Basket DEB Disk Eject Both DEC Decompile Executable Code DEI Disk Eject Immediate DEM Disk Eject Memory DES Disk Eject Swapped DHTPL Disk Head Three Point Landing DIA Develop Ineffective Address DIIL Disable Interrupts and enter Infinite Loop DIRFW Do It Right For Once DISC DISmount CPU DK Destroy Klingons DK%WMM Disk Unit - Washing Machine Mode DKP Disavow Knowledge of Programmer DLN Don't Look Now... DLP Drain Literal Pool DMPE Decide to Major in Physical Education DMPK Destroy Memory Protect Key DO Divide and Overflow DOC Drive Operator Crazy DPC Decrement program counter DPK Destroy storage Protect Key DPMI Declare Programmer Mentally Incompetent DPR Destroy Program DPR Distribute Packages Randomly DPS Disable Power Supply DRAF DRAw Flowchart DRI Disable Random Interrupt DRT Disconnect Random Terminal DS Deadlock System DSI Do Something Interesting DSPK Destroy Storage Protect Key DSR Detonate Status register DSTD Do Something Totally Different DSUIT Do Something Utterly, Indescribably Terrible DT%FFP DecTape - Unload and Flappa-Flap DT%SHO DecTape - Spin Hubs Opposite DTC Destroy This Command DTI Do The Impossible DTRT Do The Right Thing DTRT Do The Right Thing. DTVFL Destroy Third Variable From Left DU Dump User DUD Do Until Dead DW Destroy Work DW Destroy World DWIM Do What I Mean EBRS Emit burnt resistor smell EC Eject Carriage ECL Early Care Lace ECO Electrocute Computer Operator ECP Erase Card Punch ED Eject Disk ED Expunge Data [UNIX] ED Execute Data (verrrry useful) EDD Eat Disk and Die EDIT Erase Data and Increment Time EDS Execute Data Segment EEP Erase Entire Program EFD Eject Floppy Disk EIAO Execute In Any Order EIO Erase I/O page EIOC Execute Invalid OpCode ELP Enter Loop Permanently EM Evacuate Memory EMSL Entire Memory Shift Left EMT Electrocute Maintenance Technician ENF Emit Noxious Fumes EO Electrocute Operator EOI Execute Operator Immediate [a fast version of another instruction] EOP Execute Operator EP Execute Programmer EPI Execute Programmer Immediately EPP Eject printer paper EPS Electrostatic Print and Smear EPS Execute Program Sideways EPT Erase Process Table EPT Erase Punched Tape ERIC Eject Random Integrated Circuit EROS Erase Read Only Storage ESB Eject Selectric Ball [from IBM selectric typewriter terminals] ESL Exceed Speed of Light ETI Execute This Instruction [for recursive programs] ETM Emulate Trinary Machine EVC Execute Verbal Commands EWD Execute Warp Drive EXECP EXECute Programmer EXI Execute Invalid Operation EXO Execute Ignorant Operator EXX [A real instruction on the Zilog Z-80 -- Zilog is owned by EXXon] FB Find Bugs FCJ Feed Card and Jam FD Forget Data FDR Fill Disk Randomly FLI Flash Lights Impressively FM Forget Memory FMP Finish My Program FPC Feed Paper Continuously FRG Fill with Random Garbage FSM Fold, Spindle and Mutilate FSRA Forms Skip and Run Away GBB Go to Back of Bus GCAR Get Correct Answer Regardless GDP Grin Defiantly at Programmer GDR Grab Degree and Run GENT GENerate Thesis GEW{JO} Go to the End of the World {Jump Off} GIE Generate Irreversible Error GLC Generate Lewd Comment GMC Generate Machine Check GMCC Generate Machine Check and Cash GND Guess at Next Digit GORS GO Real Slow GREM Generate Random Error Message GREP Global Ruin, Expiration and Purgation [UNIX] GRMC Generate Rubber Machine Check GS Get Strange [randomly inverts bits being fed to the instruction decoder] GSB Gulp and Store Bytes GSI Generate Spurious Interrupts GSU Geometric Shift Up HAH Halt And Hang HCF Halt and Catch Fire HCP Hide Central Processor [makes virtual CPU's act like virtual memories] HCRS Hang in Critical Section HDO Halt and Disable Operator HDRW Halt and Display Random Word HELP Type "No help available" HF Hide a File HGD Halt, Get Drunk HHB Halt and Hang Bus HIS Halt in Impossible State HOO Hide Operator's Output HUAL Halt Until After Lunch IAND Illogical And IBR Insert Bugs at Random ICB Interrupt, crash and burn ICM Immerse Central Memory ICMD Initiate Core Melt-down ICSP Invert CRT Screen Picture IDC Initiate Destruct Command IDI Invoke Divine Intervention IDNOP Indirect No-Op IF Invoke Force IGI Increment Grade Immediately IGIT Increment Grade Immediately Twice II Inquire and Ignore IIB Ignore Inquiry and Branch IIC Insert Invisible Characters IIL Irreversable Infinite Loop IM Imagine Memory IMPG IMPress Girlfriend INCAM INCrement Arbitrary Memory location INOP Indirect No-op IOP Interrupt processor, Order Pizza IOR Illogical OR IP Increment and Pray IPS Incinerate Power Supply IPS Increment Processor Status IPT Ignite Paper Tape IRB Invert Record and Branch IRC Insert Random Commands IRE Insert Random Errors IRPF Infinite Recursive Page Fault ISC Ignore Supervisor Calls ISC Insert Sarcastic Comments ISI Increment and Skip on Infinity ISP Increment and Skip on Pi ISTK Invert Stack ITML Initiate Termites into Macro Library IU Ignore User JAA Jump Almost Always JFFZ Jump if Find First Zero. JFM Jump on Full Moon JHRB Jump to H&R Block JMAT JuMp on Alternate Thursdays JN Jump to Nowhere JNL Jump when programmer is Not Looking JOM Jump Over Moon JRAN Jump RANdom [not to be confused with IRAN - Idiots RANdom] JRCF Jump Relative and Catch Fire JRGA Jump Relative and Get Arrested JRSR Jump to Random Subroutine JSU Jump Self Unconditional [the ultimate in iterative programming] JT Jump if Tuesday JTZ Jump to Twilight Zone JWN Jump When Necessary KP Krunch Paper KUD Kill User's data LAC Lose All Communication LAGW Load And Go Wrong LAP Laugh At Program(mer) LCC Load and Clear Core LCD Load and Clear Disk LCK Lock Console Keyswitch LEB Link Edit Backwards LIA Load Ineffective Address LMB Lose Message and Branch LMO Load and Mug Operator LMYB Logical MaYBe LN Lose inode Number [UNIX] LOSM Log Off System Manager LP%PAS Line Printer - Print And Smear LP%RDD Line Printer - Reverse Drum Direction LP%TCR Line Printer - Tangle and Chew Ribbon LPA Lead Programmer Astray LPRTC Load Program Counter from Real-time Clock LRD Load Random Data LSBL Lose Super BLock [UNIX only] LWM Load Write-only Memory MAB Melt Address Bus MAN Make Animal Noises MAZ Multiply Answer by Zero MBC Make Batch Confetti MBH Memory Bank Hold-up MBTD Mount Beatles on Tape Drive MBTOL Move Bugs to Operator's Lunch MC Move Continuous MD Move Devious MDB Move and Drop Bits MDDHAF Make Disk Drive Hop Across Floor MFO Mount female operator MLP Make Lousy Program MLP Multiply and Lose Precision MLR Move and Lose Record MLSB Memory Left Shift and Branch MMLG Make Me Look Good MNI Misread Next Instruction MOP Modify Operator's Personality MOU MOunt User [causes computer to screw you once again] MPLP Make Pretty Light Pattern MRZ Make Random Zap MSGD Make Screen Go Dim MSIP Make Sure Plugged In MSR Melt Special Register MT%HRDV MagTape - High speed Rewind and Drop Vacuum MTI Make Tape Invalid MW Malfunction Whatever MWC Move and Wrap Core MWT Malfunction Without Telling NTGH Not Tonight, I've Got a Headache OCF Open Circular File OML Obey Murphy's Law OPP Order Pizza for Programmer OSI Overflow Stack Indefinitely OTL Out To Lunch PAS Print And Smear PAUD PAUse Dramatically PAZ Pack Alpha Zone PAZ Pack Alpha and Drop Zones (for you IBMers) PBC Print and Break Chain PBM Pop bubble memory PBN Play Beethoven's Ninth. PBPBPBP Place Backup in Plain Brown Paper Bag, Please [for stealing code] PBST Play Batch mode Star Trek PCI Pleat Cards Immediate PCR Print and Cut Ribbon PD Punch Disk PEHC Punch Extra Holes in Cards PFE Print Floating Eye [Roguers look out!] PFML Print Four Million Lines PI Punch Invalid PIBM Pretend to be an IBM PIC Print Illegible Characters PNRP Print Nasty Replies to Programmer PO Punch Operator POPN Punch OPerator's Nose PPA Print Paper Airplanes PPP Print Programmer's Picture PPR Play Punk Rock PPSW Pack Program Status Word PS Print and Smear PSP Print and Shred Paper PSR Print and Shred Ribbon PTP Produce Toilet Paper QWA Quit While Ahead RA Randomize Answer RAM Reorganize and Abort Monitor RASC Read And Shred Card RAST Rewind And Stretch Tape RAU Ridicule All Users RBG Random Bug Generate RBLY Restore Backup from Last Year RBT Read Blank Tape RBT Rewind and Break Tape RCAJ Read Card And Jam RCB Read Commands Backwards RCB Run Clock Backwards RCC Read Card and Chew RCF Rewind Cabinet Fans RCKG Read Count Key and Garbage RCL Rotate carry left RCR Rewind Card Reader RCRV Randomly convert to reverse video RCS Read Card, Scramble data RCSD Read Card and Scramble Data RDA Refuse to Disclose Answer RDD Reverse Disk Drive RDF Randomize directory filenames RDI Reverse Disk Immediate RDR Reverse disk rotation (Read data in reverse) REF REad Fingerprints REG REcord Garbadge RENVR Rename Variables Randomly RET Read and Erase Tape RIC Rotate Illogical thru Carry RID Read Invalid Data RIG Read Interrecord Gap. RIR Read Invalid Record RIRG Read Inter-Record Gap RIRG Rewrite Inter-Record Gap [random replacement of similar mnemonic] RLC Re-read last card RLC Relocate and Lose Core RLI Rotate Left Indefinitely RLP Refill Light Pen RLP Rewind Line Printer RM Ruin My files [UNIX] RMI Randomize Memory Immediate RMV Remove Memory Virtues RNBS Reflect Next Bus Signal RNR Read Noise Record ROD ROtate Diagonally ROM Read Operator's Mind ROM Read Operator's Mind. ROM Read Operator's Mind ROOP Run Out Of Paper ROPF Read Other People's Files ROS Reject Op System ROT Rotate Disk [fixes broken drives] RP Read Printer RPB Raise Parity Bits RPBR Reverse Parity and BRanch RPM Read Programmer's Mind RPM Read Programmer's Mind (don't I wish this existed sometimes!!) RPU Read character and Print Upside down RRB Read Record and Blush RRC Rotate Random thru Carry RRR Read Record and Run away RRRL Random Rotate Register Left RRSG Round and Round She Goes... RRT Rewind and Rip Tape RSD Read and Scramble Data RST Rewind and Stretch Tape RT Reverse Throughput RTS Return To Sender RWD Rewind Disk RWF Read Wrong File SAD Seek And Destroy SAI Skip All Instructions SAS Sit And Spin SC Scramble Channels SC Shred Cards SCB Spindle Card and Belch SCCA Short Circuit on Correct Answer SCH Slit Cards Horizontal SCI Shred Cards Immediate SCOM Set Cobol-Only Mode SCRRC SCRamble Register Contents SCST Switch Channel to Star Trek SCTR Stick Card To Reader SD Scramble Directory SD Slip Disk SDD Seek and Destroy Data SDDB Snap Disk Drive Belt SDE Solve Differential Equations SDI Self Destruct Immediately SDS Spool disk to console SEB Stop Eating and Burp SETS Set to Self. SEX Set EXecution register [a real instruction for the RCA 1802] SEX Sign EXtend SFH Set Flags to Half mast SFLT Solve Fermat's Last Theorem. SFT Stall For Time SHB Stop and Hang Bus SHCD SHuffle Card Deck SHIT Stop here if Thursday SHON Simulate HONeywell CPU [permanent NO-OP] SHRC SHRed Card SHRT SHRed Tape SID Switch to Infinite Density SLD Slip Disk SLP Sharpen Light Pen SMS Shred Mylar Surface SMT Stretch MagTape SNM Show No Mercy SOAWP SOlve All the World's Problems SOB [a real PDP-11 instruction] SOD Surrender Or Die! SOP Stop and Order Pizza SOS Sign Off, Stupid SP Scatter Print SPA Sliding Point Arithmetic SPC Staple and Punch new Center hole SPO Skip if Power Off. SPS Short power supply SPSW Scramble Processor Status Word SRBO Set Random Bits to Ones SRBZ Set Random Bits to Zeroes SRC Select Reader and Chew cards SRC Skip to Random Channel SRD Switch to Random Density SRDR Shift Right, Double Ridiculous SRO Sort with Random Ordering SRR Set Registers to Random values [usually used prior to a RET or RTS] SRR Shift Registers Random SRSD Seek Record and Scratch Disk SRU Signoff Random User SRZ Subtract and Reset to Zero SSD Seek and Score Disk [good for testing] SSJ Select Stacker and Jam SSJP Select Stacker and Jump SSM Solve by Supernatural Means SSP Smoke and SPark SST Stop and Stretch Tape ST Set and Test STD Stop, Take Drugs STMLMD Skip To My Lou, My Darlin' STO Strangle Tape Operator STPR SToP Rain STTHB Set Terminal to Three Hundred Baud SUI Subtract User's IQ SUME Surprise Me SUP Solve Unsolvable Problem SUR Screw Up Royally SUS Stop Until Spring SUS Subract Until Senseless SWAR SpaceWAR in one instruction. SWAT SWAp Terminals SWN SWap Nibbles SWOS SWap out Operating System SWS Sort to Wrong Slots SWU Select Wrong Unit SZD Switch to Zero Density TARC Take Arithmetic Review Course TBFTG Two Burgers and Fries To Go TCR Transmit Colors (but avoid Red) TDB Transfer and Drop Bits TDS Trash Data Segment TLNF Teach me a Lesson I'll Never Forget TLO Turn indicator Lights Off TN Take a Nap TOG Time Out, Graduate TOH Take Operator Hostage TOO Turn On/Off operator TOS Trash Operating System TPD Triple Pack Decimal TPDH Tell Programmer to Do it Him/Herself TPN Turn Power oN TPO Turn Power Off TPR Tear PapeR TR Turn into Rubbish [UNIX] TRA Te Rdls Arvs [Type Ridiculous Abbreviations] TSH Trap Secretary and Halt TSM Trap Secretary and Mount TST Trash System Tracks TT%CNK TeleType - Clunk Noise TT%EKB TeleType - Electrify KeyBoard TTA Try, Try Again TTITT Turn 2400 foot tape Into Two 1200 foot tapes [Only privileged users will get hubs on both tapes] TTL Tap Trunk Line TTL Time To Log off UAI Use Alternate Instruction set UCB Uncouple CPU and Branch UCK Unlock Console Keyswitch UCPUB Uncouple CPU's and Branch UER Update and Erase Record UMR Unlock Machine Room UOP Useless Operation UP Understand Program(mer) URB Update Resume and Branch UTF Unwind Tape onto Floor UUBR Use Undefined Base Register VAX Violate All eXecutions VNO Violate Noise Ordinance VPA Vanishing Point Arithmetic VVM Vaporise Virtual Memory WAD Walk Away in Disgust WC Waste Core [UNIX] WCR Write to Card Reader WGPB Write Garbage in Process-control Block WHP Wave Hands over Problem WI Why Immediate WID Write Invalid Data WNHR Write New Hit Record WNR Write Noise Record WPET Write Past End of Tape WSE Write Stack Everywhere WSWW Work in Strange and Wondrous Ways WWLR Write Wrong Length Record WWR Write Wrong Record XIO Execute Invalid Op code XKF Execute Kermit the Frog XMB Exclusive MayBe XOH Execute no-Op and Hang XOI Execute Operator Immediate. XOR Execute OperatoR XOS Exchange Operator's Sex XPR Execute Programmer XVF Exchange Virtue for Fun ZAP Zero and Add Packed ZPI ZaP Immediate ==============================================================================