#------- # $Id: opcodes,v 1.9 1993/03/02 16:56:59 dws Exp dws $ # # opcodes - canonical list of assembler opcodes that really ought # to exist somewhere. # # This collection is (C) Copyright 1993 by DaviD W. Sanderson # # DaviD W. Sanderson (dws@ssec.wisc.edu) # # $Log: opcodes,v $ # Revision 1.9 1993/03/02 16:56:59 dws # Added 10 new opcodes from a list posted by steinl@idt.unit.no # # Revision 1.8 1993/01/13 01:20:27 dws # Added about 40 new opcodes from Jouko Valta [jopi@stekt.oulu.fi] # # Revision 1.7 1993/01/11 18:41:55 dws # Added 10 from David Gross # # Revision 1.6 1993/01/06 19:51:21 dws # Noted that Drummond did not invent most of the list # he sent me. # # Revision 1.5 1993/01/06 19:08:49 dws # Added about 150 (!) new opcodes from a list # jjd@teak.cray.com (Jeff Drummond) sent me. # # Revision 1.4 1993/01/06 04:48:44 dws # Fixed typo. # # Revision 1.3 1993/01/06 04:47:32 dws # Incorporated a couple of new opcodes from a list posted by # wallacen@ColoState.EDU (nathan wallace). # # Revision 1.2 1993/01/06 04:30:27 dws # Added header. # #------- AAC Abolish Ada Compiler AAC Alter All Commands AAD Alter All Data AAO Add And Overflow AAR Alter At Random AB Add Backwards ABC Abolish BASIC Compiler ABC AlphaBetize Code ABR Add Beyond Range ACC Abolish COBOL Compiler ACC Advance CPU Clock ACDC Allow Controller to Delete Contents ACDP Allow Controller to Die Peacefully ACM Automatically Clear Memory ACQT Advance Clock to Quitting Time ADB Another Damn Bug ADDN ADD Nauseum AEE Absolve Engineering Errors AFF Add Fudge Factor AFHB Align Fullword on Halfword Boundary AFP Abnormal[ize] Floating Point AFR Abort Funny Routine AFVC Add Finagle's Variable Constant AGB Add GarBage AGWA Add and Get Wrong Answer AI Add Improper AIB Attack Innocent Bystander AIB Attack Innocent Bystanders AISG Access and Improve Student Grade AMM Add Mayo and Mustard AMM Answer My Mail AMS Add Memory to System ANC ANnoy Consultant ANFSCD And Now For Something Completely Different AOI Annoy Operator Immediate AR Advance Rudely AR Alter Reality ARN Add and Reset to Nonzero ARNZ Add and Reset to NonZero ARZ Add and Reset to Zero AS Add Sideways ASQGSA ASCII Stupid Question, Get a Stupid ANSI AT Accumulate Trivia AWP Argue With Programmer AWTT Assemble With Tinker Toys AZ Address by Zipcode AZ+4 Address by 9-digit Zipcode BA Branch Anywhere BAC Branch to Alpha Centauri BAD Branch And Die BAD Branch to Auto Destruct BAF Blow All Fuses BAFL Branch And FLush BAH Branch And Hang BALC Branch And Link Cheeseburger BAP Branch And Punt BAW Bells And Whistles BB Branch on Bug BBBB Byte Baudy Bit and Branch BBBF Branch on Bit Bucket Full BBC Branch Before Compare BBD Branch on Bastille Day BBI Branch on Blinking Indicator BBI Branch on Burned-out Indicator BBIL Branch on Burned-out Indicator Light BBLB Branch on Blinking Light Bulb BBOI Branch on Burned-Out Indicator BBR Bug on BRanch BBT Branch on Binary Tree BBW Branch Both Ways BC Bypass Core BCB Burp and Clear Bytes BCBF Branch on Chip Box Full BCF Branch and Catch Fire BCF Branch on Chip box Full BCG Branch on CE Ground BCIL Branch Creating Infinite Loop BCR Backspace Card Reader BCS Branch and Crash System BCU Be Cruel and Unusual BD Backspace Disk BD Beat on Drum BD Branch to Data BDB Branch on Donner or Blitzen BDC Break Down and Cry BDI Branch to Data Indirect BDM Branch and Disconnect Memory BDS Branch to Data Segment BDT Burn Data Tree BDU Branch on Dense User BE Branch Everywhere BEC Bypass Error Check BEO Branch and Execute Operator BEW Branch Either Way BF Belch Fire BF Blow Fuse BF Branch Forever BFD Branch on Full Disk BFF Branch and Form Feed BFM Be Fruitful and Multiply BH Branch and Hang BIM Branch on Index Missing BIMBO Branch If Multi-Byte Overflow BIR Branch Inside Ranch BIR Branch and Invert Record BIRM Branch on Index Register Missing BLC Branch and Loop Continuous BLI Branch and Loop Infinite BLM Branch, Like, Maybe BLMWM Branch, Like, Maybe, Wow, Man BLP Boot from Line Printer BLR Branch and Lose Return BLSH Buy Low, Sell High BLT Break Little Thing BM Branch Maybe BMF Blow Main Fuse BMI Blow up Memory Immediate BMI Branch on Missing Index BMI Branch to Muncee Immediate BMP Branch and Make Popcorn BMR Branch [on] Multiple Registers BMUS Beam Me Up, Scotty BNA Branch to Nonexistant Address BNCB Branch and Never Come Back BNL Become a Neo-Luddite BNR Branch for No Reason BO Byte Operator BOB Branch On Bug BOD Beat On Disk BOD Beat On Drum BOD Branch on Operator Desperate BODTH Beat On Drum, then Toot Horn BOH Branch On Humidity BOH Branch on Operator High BOHP Bribe Operator for Higher Priority BOI Byte Operator Immediately BOP Boot OPerator BOPL Burn Out Pilot Lights BOS Branch on Operator Sleepy BOT Branch On Tree BPB Branch on Program Bug BPC Branch to Program Counter BPD Branch if Programmer Debugging BPDI Be Polite and Don't Interrupt BPIM Bury Programmer In Manuals BPL Branch PLease BPM Become a Psych Major BPM Branch on Phase of Moon BPO Branch on Power Off BPO Branch on Power On BPP Branch and Pull the Plug BR Byte and Run BRA Branch to Random Address BRB BRanch on Beaver BRH BRanch and Hang BRI BRanch Indefinitely BRL BRanch and Leak BRO BRanch and Overheat BRO BRanch to Oblivion BS Behave Strangely BSC Branch on Second Coming BSC Burst Selector Channel BSD BackSpace Disk BSI Back up Sewer Immediate BSI Backup Sewer Immediately BSM Branch and Scramble Memory BSO Branch on Sleepy Operator BSP BackSpace Punch BSR Branch and Stomp Registers BSS Branch on SunSpot BSST BackSpace and Stretch Tape BST Backspace and Stretch Tape BTD Branch on Time of Day BTD Byte The Dust BTI Blow Trumpet Immediately BTJ Branch and Turn Japanese BTO Branch To Oblivion BTR Break Tape and Reverse BTW Branch on Third Wednesday BU Branch Unexpectedly BUTI Blow Up Terminal Immediately BVS Branch and Veer South BW Branch on Whim BWABL Bells, Whistles, And Blinking Lights BWC Branch When Convenient BWF Busy, Wait Forever BWOP BeWilder OPerator BYDS Beware Your Dark Side BYTE BYte TEst CAC Calling All Cars CAC Cash And Carry CAF Convert ASCII to Farsii CAI Corrupt Accounting Information CAIL Crash After I Leave CAR Cancel Accounts Receivable CAT Confused And Tired CB Consult Bozo CB Crash and Burn CBA Compare and Branch Anyway CBBR Crash and Blow Boot Read-only memory CBNC Close, But No Cigar CBS Clobber BootStrap CBS Crash Bothersome Source code CC Call Calvery CC Change Channels CC Compliment Core CCB Chocolate Chip Byte-mode CCB Consult Crystal Ball CCC Crash if Carry Clear CCCC Cash Cheque and Check Cache CCCP Conditionally Corrupt Current Process CCD Choke Cough and Die CCD Clear Core and Dump CCR Change Channels at Random CCS Chinese Character Set CCWR Change Color of Write Ring CD Complement Disk CD Concoct Data CDC Clear Disk and Crash CDC Close Disk Cover CDI Crash Disk Immediate CDIOOAZ Calm Down, It's Only Ones And Zeroes CDS Change Disk Speed CDS Condense and Destroy System CEMU Close Eyes and Monkey with User space CEX Call EXterminator CF Come From [replaces goto] CFE Call Field Engineer CFM ConFuse Memory CFP Change and Forget Password CFS Corrupt File Structure CG Convert to Garbage CH Create Havoc CHCJ Compare Haig to Christine Jorgensen CHPAMR CHase Pointers Around Machine Room CHSE Compare Half-words and Swap if Equal CIB Change Important Byte CIC Cash In Chips CID Compare and Ignore Data CIMM Create Imaginary Memory Map CIZ Clear If Zero CLBR CLoBber Register CLBRI CLoBber Register Immediate[ly] CM Circulate Memory CMB Create Machine Bug CMD CPU Melt Down CMD Compare Meaningless Data CMFRM CoMe FRoM [essential for truly structured programming] CMI Clobber Monitor Immediate CML Compute Meaning of Life CMP Create Memory Prosthesis CMS Click MicroSwitch CN Compare Nonsensically CNB Cause Nervous Breakdown CNS Call Nonexistent Subroutine CO Confuse Operator COCS Copy Object Code to Source COD Crash On Demand COLB Crash for Operator's Lunch Break COM Clear Operator's Mind COMF COMe From CON Call Operator Now COS Copy Object code to Source file COWYHU Come Out With Your Hands Up CP Compliment Programmer CP%FKM CPU \(em FlaKeout Mode CP%WM CPU \(em Weird Mode CPAR Crumple Paper And Rip CPB Create Program Bug CPN Call Programmer Names CPPR Crumple Printer Paper and Rip CR Clobber Register CRASH Continue Running After Stop or Halt CRB CRash and Burn CRD Confirm Rumor by Denial CRE Create Random Error CRM CReate Memory CRM Clear Random Memory CRN Compare with Random Number CRN Convert to Roman Numerals CRR Convert to Roman numeRals CRYPT reCuRsive encrYPt Tape CS Crash System CSL Curse and Swear Loudly CSN Call Supervisor Names CSNIO Crash System on Next I/O CSS Crash Subsidiary Systems CSU Call Self Unconditional CTDMR Change Tape Density, Mid Record CTT Call Time and Temperature CU Convert to Unary CUC Cheat Until Caught CUME Cover-Up Machine Errors CUN Cancel all User Numbers CVFL ConVert Floating to Logical CVFP ConVert Fortran to Pascal CVG ConVert to Garbage CVU ConVert to Unary CWAH Create Woman And Hold CWB Carry With Borrow CWDC Cut Wires and Drop Core CWG Chase Wild Goose CWGK Compare Watt to Genghis Khan CWIT Compare Watt to Ivan the Terrible CWM Compare Watt to Mussolini CWOM Complement Write-Only Memory CZZC Convert Zone to ZIP Code DA Develop Amnesia DAB Delete All Bugs DAC Divide And Conquer DAD Destroy A-Disk DAMIT transfer control to perdition DAO Divide And Overflow DAP De-select Active Peripheral DAUF Delete All Useless Files DB Drop Bits DBL Desegregate Bus Lines DBP Drop Back 15 yards and Punt DBR DeBase Register DBTP Drop Back Ten and Punt DBZ Divide By Zero DC Degauss Core DC Divide and Conquer DCAD Dump Core And Die DCC Dump Core to Chad box DCD Drop Cards Double DCGC Dump Confusing Garbage to Console DCI Disk Crash Immediate DCON Disable CONsle DCOR Delete CORe DCR Double-precision CRash DCT Drop Cards Triple DCWPDGD Drink Coffee, Write Program, Debug, Get Drunk DD Destroy Disk DD Drop Disk DDC Dally During Calculations DDOA Drop Dead On Answer DDS Delaminate Disk Surface DDT Debug Program DDWB Deposit Directly in Waste Basket DEB Disk Eject Both DEC Decompile Executable Code DEI Disk Eject Immediate DEM Disk Eject Memory DFA Disable FAns DGO Decrement the Grades of Others DGT Dispense Gin and Tonic DHTPL Disk Head Three Point Landing DIA Develop Ineffective Address DIC DisIntegrate Circuits DIC Drop Into Check DICE Delete Invalid Customer Engineer DIE DIsable Everything DIF DIsable Fuses DIG DIsable Gravity DIGO Data In, Garbage Out DIH Disable Interrupts and Hang DIIL Disable Interrupts and enter Infinite Loop DIRFO Do It Right For Once DISC DISmount CPU DIVZDX DIVide by Zero and Disregard eXception DK Destroy Klingons DK%WMM DisK unit \(em Washing Machine Mode DKP Disavow Knowledge of Programmer DLN Don't Look Now DLP Drain Literal Pool DM Destroy Memory DMAG Do MAGic DMNS Do what i Mean, Not what i Say DMP Destroy Memory Protect key DMPE Decide to Major in Phys. Ed. DMPK Destroy Memory Protect Key DMPK Disable Memory Protect Key DMV Double Mains Voltage DMZ Divide Memory by Zero DND Destroy Neighbor's Data DNPG Do Not Pass Go DO Divide and Overflow DO Divide and Overflow [IBM PC] DOC Drive Operator Crazy DOV Divide and OVerflow DP Destroy Peripherals DPC Decrement Program Counter DPCS Decrement Program Counter Secretly DPK Destroy storage Protect Key DPMI Declare Programmer Mentally Incompetent DPN Double Precision No-op DPR Destroy PRogram DPS Disable Power Supply DR Detach Root DRAF DRAw Flowchart DRAM Decrement RAM DRBA Deposit Round-off in my Bank Account DRD DRop Dead DRI Disable Random Interrupt DROM Destroy ROM DRT Disconnect Random Terminal DS Deadlock System DSD Dismount System Disk DSI Do Something Interesting DSO Disable System Operator DSP Degrade System Performance DSR Delete SubRoutine DSR Detonate Status Register DSTD Do Something Totally Different DSUIT Do Something Utterly, Indescribably Terrible DT%FFP DecTape \(em unload and Flappa FlaP DT%SHO DecTape \(em Spin Hubs Opposite DTB Destructively Test Bit DTBCD Destory Tapes B, C, and D DTC Destroy This Command DTE Decrement Telephone Extension DTI Do The Impossible DTRT Do The Right Thing DTVFL Destroy Third Variable From Left DU Dump User DUD Do Until Dead DW Destroy World DWIM Do What I Mean DWIMNWIS Do What I Mean, Not What I Say DWIT Do What I'm Thinking DWIW Do What I Want EA Enable Anything EAC Emulate Acoustic Coupler EAL Enable AC to Logic rack EAO Enable AC to Operator EBB Edit and Blank Buffer EBB Empty Bit Bucket EBR Erase Before Reading EBRS Emit Burnt Resistor Smell EC Eat Card ECB Eject Chad Box ECF Explode and Catch Fire ECL Early Care Lace ECO Electrocute Computer Operator ECP Erase Card Punch ED Eject Disk ED Execute Data EDD Eat Disk and Die EDIT Erase Data and Increment Time EDMB Electrocute DP Manager and Branch EDP Emulate Debugged Program EDR Emit Deadly Radiation EDR Execute Destructive Read EDS Execute Data Segment EEG Erase Eighteen minute Gap EEOIFNO Execute Every Other Instruction From Now On EEP Erase Entire Program EFB Emulate Five-volt Battery EFD Eject Floppy Disk EFD Emulate Frisbee using Disk pack EFE Emulate Fatal Error EHC Emulate Headless Chicken EIA Elvis Is Alive EIAO Execute In Any Order EIEIO Evaluate, Increment, Excrement, Invert, Output EIO Erase I/O page EIO Execute Invalid Opcode EIOC Execute Invalid OpCode EIS Encrypt Instruction Set EJD EJect Disk EJD%V EJect Disk \(em with initial velocity V ELP Enter Loop Permanently EM EMulate 407 EM Evacuate Memory EMCP Eject Math Co-Processor EMIF Erase Most Important File EMM Emulate More Memory EMPC EMulate Pocket Calculator EMSE Edit and Mark Something Else EMSL Entire Memory Shift Left EMT Electrocute Maintenance Technician EMW Emulate Maytag Washer ENA ENable Anything END Erase Neighbor's Data ENE ENable Everything ENF Emit Noxious Fumes ENG ENable Gravity ENO Emulate No-Op EO Electrocute Operator EO Execute Operator EOB Execute Operator and Branch EOI Explode On Interrupt EOS Erase Operating System EP Execute Programmer EPD Explode Peripheral Device EPI Execute Programmer Immediate[ly] EPITS Execute Previous Instruction Then Skip EPL Emulate Phone Line EPMA Erase Protected Memory Areas EPP Eject Printer Paper EPP Execute Political Prisoner EPS Electrostatic Print and Smear EPS Execute Program Sideways EPSW Execute Program Status Word EPT Erase Process Table EPT Erase Punched Tape EPW Erase Print Wheel ERD Eject Removable Disk ERIC Eject Random Integrated Circuit ERM Erase Reserved Memory EROM Erase Read-Only Memory EROS Erase Read-Only Storage EROS Erase Read-Only Storage [Everex int] ERS Erase Read-only Storage ESB Eject Selectric Ball ESC Emulate System Crash ESD Eat Shit and Die ESD Eject Spinning Dish ESL Exceed Speed of Light ESNPR Emergency Stop - No Possible Restart ESP Enable SPrinkler system ESP Execute Systems Programmer ETC EaT Card ETI Execute This Instruction ETM Emulate Trinary Machine ETPH E. T. Phone Home EVC Execute Verbal Commands EWD Enter Warp Drive EWM Enter Whimsy Mode EXB EXcrement and Branch EXCE EXecute Customer Engineer EXE EXecute Engineer EXI EXecute Invalid operation EXO EXecute Operator EXOI EXecute Operator Immediately EXOP EXecute OPerator EXP EXecute Programmer EXPP EXecute Political Prisoner FAY Fetch Amulet of Yendor FB Find Bugs FC Fry Console FCJ Feed Card and Jam FCJ Feed Cards and Jam FD Forget Data FDR Feed Disk Randomly FERA Forms Eject and Run Away FFF Form Feed Forever FLD FLing Disk FLI Flash Lights Impressively FM Forget Memory FMP Finish My Program FOAD Find Other Accumulator and Destroy FOPC False Out-of-Paper Condition FPC Feed Paper Continuously FPT Fire Photon Torpedoes FRG Fill with Random Garbage FRS Fetch Ring of Sauron FS Feign Sleep FSM Fold, Spindle, and Mutilate FSR Form Skip and Runaway FSRA Forms Skip and Run Away FUBAR Foul Up Buffers And Retry FYBR Follow Yellow Brick Road GAP Grade All Projects GBB Go to Back of Bus GCAR Get Correct Answer Regardless GCR Generate Confusing Results GDP Grin Defiantly at Programmer GDR Grab Degree and Run GENT GENerate Thesis GEW{JO} Go to the End of the World {Jump Off} GFD Go Forth and Divide GFM Go Forth and Multiply GIDO Garbage In, Data Out GIE Generate Irreversible Error GL Get Lost GLC Generate Lewd Comment GMC Generate Machine Check GMCB Generate Machine Check and Bounce GMCC Generate Machine Check and Cash GND Guess at Next Digit GORS GO Real Slow GPCR Generate Petty Cache Request GPE Generate Parity Error GR Get Real GREM Generate Random Error Message GREP Global Ruin, Expiration, and Purgation GRMC Generate Rubber Machine Check GS Get Strange GSB Gulp and Store Bytes GSI Generate Spurious Interrupts GSU Geometric Shift Up GTJ Go To Jail HAC Hold All Calls HACF Halt And Catch Fire HAH Halt And Hang HBW Hang Bus and Wait HCF Halt and Catch Fire [IBM 360/63 did this at CIT once] HCP Hide Central Processor HCRS Hang in CRitical Section HDH Hi Dee Ho HDO Halt and Disable Operator HDRW Halt and Display Random Word HELP Hinder Everyone with Little Productivity HELP Type 'No Help Available' HEO Halt and Execute Operator HF Hide File HFLAB Halt if Flashing Lights on Address Bus HGD Halt, Get Drunk HHB Halt and Hang Bus HIS Halt in Imposible State HOO Hide Operator's Output HRPR Hang up and Ruin Printer Ribbon HS Hide and Seek HSC Halt on System Crash HSJ Halt, Skip and Jump HTC Halt and Toss Cookies HTS Halt and Throw Sparks HUAL Halt Until After Lunch HUP Hang Up Phone HWP Halt Without Provocation IA Illogical And IAE Ignore All Exceptions IAI Inquire And Ignore IAND Illogical AND IAR Ignore All Requests IB Insert Bug IBM Illegal Bit Maneuver IBM Increment and Branch to Muncee IBP Insert Bug and Proceed IBR Insert Bugs at Random IC Interlock Core ICB Interrupt, Crash and Burn ICM Immerse Central Memory ICMD Initiate Core Melt Down ICR Incur Costly Repair [Sun Tempest] ICSP Invert Crt Screen Picture IDA Invert Digital Array IDC Initiate Destruct Command IDI Invoke Divine Intervention IDNOP InDirect No-OP IDPS Ignore Disk Protect Switch IECP Introduce Error in Chess Program IEOF Ignore End Of File IF Invoke Force IFOR Initialize Fake-Out Routine IGI Increment Grade Immediate IGIT Increment Grade Immediate Twice IGO Increment Grade Overnight IHC Initiate Head Crash IHTFP Increment Hormones, Test For Puberty II Ignore Inquiry II Inquire and Ignore IIB Ignore Inquiry and Branch IIC Insert Invisible Characters IIH Ignore Inquiry and Hang IIL Irreversable Infinite Loop ILPS Invert Logical Power Supply IM Imagine Memory IMBP Insert Mistake and Blame Programmer IMP Imitate Monty Python IMPG IMPress Girlfriend IMV IMpress Visitors INCAM INCrement Arbitrary Memory ING INquire and iGnore INI Ignore Next Instruction INOP Indirect No-OP INR INstigate Rumor INSQSW INSert into Queue SomeWhere [for fino queues [first in never out]] INW INvalidate Warranty IOI Ignore Operator's Instruction IOP Interrupt and Order Pizza IOR Illogical OR IOS Ignore Operating System IP Increment and Pray IPI Ignore Previous Instruction IPM Ignore Programmer's Mistakes IPOP Interrupt Processor, Order Pizza IPS Incinerate Power Supply IPS Increment Power Supply IPT Ignite Paper Tape IRB Invert Record and Branch IRBI Insert Random Bits Indexed IRC Insert Random Commands IRE Insert Random Errors IRI Ignore Rude Interrupts IRPF Infinite Recursive Page Fault ISC Ignore Supervisor Call[s] ISC Ignore System Crash ISC Insert Sarcastic Comments ISI Increment and Skip on Inifinity ISL Illogical Shift Left ISP Increment and Skip on Pi ISR Illogical Shift Right ISTK Invert STacK ITML Initiate Termites into Macro Library IU Ignore User[s] IXOR Illogical eXclusive OR IZ Ignore Zeroes JAA Jump Almost Always JBS Jump and Blow Stack JC Jam Card punch JC Jump to Conclusions JCI Jump to Current Instruction JDO Jump and Destroy Operator JFC Jump to Floor and Crash JFM Jump on Full Moon JHRB Jump to H&R Block JK Jam Keypunch JLP Jump and Lose Pointer JLR Jump and Lose Return JMAT JuMp on Alternate Thursdays JN Jump to Nowhere JNL Jump when programmer is Not Looking JOB Jump On Beaver JOM Jump Out of Memory JOM Jump Over Moon JOP Jump OPerator JPA Jump when Pizza Arrives JRAN Jump RANdom JRCF Jump Relative and Catch Fire JRGA Jump Relative and Get Arrested JRL Jump to Random Location JRSR Jump to Random SubRoutine JS Jump Somewhere JSC Jump on System Crash JSOR Jump Somewhere Over Rainbow JSU Jump Self Unconditional JT Jump if Tuesday JTT Jump and Tangle Tape JTZ Jump to Twilight Zone JWN Jump When Necessary KCE Kill Consultant on Error KCE Kill repairman [CE] KDO Knock Disk Over KEPITU Kill Every Process In The Universe KOP Kill OPerator KP Krunch Paper KPR Kill PRogrammer KSR Keyboard Shift Right KUD Kill User's Data KWWE Kill Wicked Witch of East KWWW Kill Wicked Witch of West LAC Lose All Communication LAGW Load And Go Wrong LAP Laugh At Program LAP Laugh At Programmer LC Loop Continuously LCC Load and Clear Core LCD Launch Cartridge Disk LCK Lock Console Keyswitch LEB Link Edit Backwards LGA Load and Go Away LIA Load Ineffective Address LMB Lose Message and Branch LMO Load and Mug Operator LMYB Logical MaYBe LN Lose inode Number LNP Load N digits of Pi LO Load Operator LOSM Log Off System Manager LP%PAS Line Printer \(em Print And Smear LP%RDD Line Printer \(em Reverse Drum Direction LP%TCR Line Printer \(em Tangle and Chew Ribbon LPA Lead Programmer Astray LPRTC Load Program counter from Real Time Clock LR Load Revolver LRA Load RetroActively LRB Lose Record and Branch LRD Load Random Data LSPSW Load and Scramble PSW LTS Link To Sputnik LTS Loop Till Smokes LUM LUbricate Memory LWE Load WhatEver LWM Load Write-only Memory LWOM Load Write-Only Memory MAB Melt Address Bus MAN Make Animal Noises MAZ Multiply Answer by Zero MBC Make Batch Confetti MBF Multiply and Be Fruitful MBH Memory Bank Hold-up MBTD Mount Beatles on Tape Drive MBTOL Move Bug To Operator's Lunch MC Move Continuous MD Move Devious MDB Move and Drop Bits MDC Make Disk Crash MDDHAF Make Disk Drive Hop Across Floor MFO Mount Female Operator MILI Move It or Lose It MLB Memory Left shift and Branch MLP Make Lousy Program MLP Multiply and Lose Precision MLR Move and Lose Record MMF Melt Main Frame MMLG Make Me Look Good MNI Misread Next Instruction MOG Make Operator Growl MOL Move it Or Lose it MOP Modify Operator's Personality MOU MOunt User [causes computer to screw you] MPLP Make Pretty Light Pattern MRZ Make Random Zap MSF Make Silly Face MSGD Make Screen Go Dim MSLB Memory Shift Left and Branch MSP Mistake Sign for Parity MSPI Make Sure Plugged In MSR Melt Special Register MST Mount Scotch Tape MT%HRDV Mag Tape \(em High speed Rewind and Drop Vaccuum MTE Mangle Tape on Exit MTI Make Tape Invalid MTS Move to Tape Stretcher MUG Make Ugly Graphics MULZTO MULtiply by Zero and Trap on Overflow MUM Multi-Use Mnemonics MVAR MoVe to Random Address MVLR MoVe and Lose Record MVRA MoVe to Random Address MW Malfunction Whenever MW Multiply Work MWAG Make Wild-Assed Guess MWC Move and Wrap Core MWT Malfunction Without Telling NBC Negate By Clearing NCW Notch Carriage and Way NESI No one Expects the Spanish Inquisition NMI Negate Most Integers NOP Needlessly Omit Pointer NPC Normalize Program Counter NPN No Program Necessary [VAX] NTGH Not Tonight, i've Got a Headache OBB Overflow Bit Bucket OCF Open Circular File OHS Order Ham Sandwich OMC Obscene Message to Console OMC Overheat Memory Chip OML Obey Murphy's Laws OPI Order Pizza Immediately OPP Order Pizza for Programmer ORSD On Read error Self-Destruct OSI Overflow Stack Immediate OSI Overflow Stack Indefinite OSP Open Six-Pack OTL Out To Lunch OU Offend User P$*! Punch Obscenity PA Punch in ASCII PAL Pack And Leave PAS Print And Smear PAUD PAUse Dramatically PAZ Pack Alpha Zone PAZ Pack Alpha and drop Zones PBC Print and Break Chain PBD Print and Break Drum PBL Pack Bags and Leave PBM Pop Bubble Memory PBPBPBP Place Backup in Plain Brown Paper Bag Please PBS Pop Before Stacking PBS Print on the Back of the Screen PBST Play Batch mode Star Trek PCB Pause for Coffee Break PCD PunCh Disk PCI Pleat Cards Immediate PCR Print and Cut Ribbon PCR Punch Card Reader PCS Push to Centre of Stack PD Play Dead PD Punch Disk PDK Punch DisK PDLD Power Down and Lock Door [to computer room] PDM Play Drum Memory [dated, wot?] PDP Pop Disk Pack PDSK Punch DiSK PEHC Punch Extra Holes in Cards PEP Print on Edge of Paper PF Punch, Fruit PFD Punt on Fourth Down PFE Print Floating Eye PFML Print Four Million Lines PG Print Garbage PH Phone Home PHO Pull Hair Out PI Punch Invalid PIBM Pretend to be an IBM PIC Print Illegible Characters PIC Print Invalid Character PIC Punch Invalid Character PLSC Perform Light Show on Console PM Punch Memory PNIH Place Needle In Haystack PNRP Print Nasty Replies to Programmer PO Punch Operator POCL Punch Out Console Lights POF Print On Fly POG Print Only Greek POI Punch Operator Immediate POP Pop Or Push POPI Punch OPerator Immediate[ly] POPN Punch OPerator's Nose PPA Print Paper Airplanes PPC Purge Pascal Compiler [HP 3000] PPL Perform Perpetual Loop PPP Print Programmer's Picture PPR Play Punk Rock PPS Push or Pop Stack [6502 does this sometimes] PPSW Pack Program Status Word PRS PRint and Smear PS Print and Smear PS* Punch Obscenity PSD Pause and Smoke Dope PSP Print and Shred Paper PSR Print and Shred Ribbon PT Punch Tape PTP Produce Toilet Paper PUO Perform Unknown Operation PURB Pick Up Random Bits PVC Punch Variable-length Card PVLC Punch Variable Length Card PWP Print Without Paper PWS create PoWer Surge PYS Program YourSelf QBDH Quit and Become a DeadHead QWYA Quit While Your Ahead RA Randomize Answer RAM Randomly Access Memory RAM Read Ambiguous Memory RAN RANdom opcode [similar to 16-bit what gate] RASC Read And Shred Card RAST Read And Shred Tape RAU Ridicule All Users RBAG Random Branch Address Generator RBAO Ring Bell and Annoy Operator RBG Random Bug Generator RBLY Restore Back-up from Last Year RBT Read Blank Tape RBT Rewind and Break Tape RC Read Chaos RC Rewind Core RCAJ Read Card And Jam RCB Read Chad Box RCB Read Command Backwards RCB Run Clock Backwards RCC Read Card and Chew RCCP Randomly Corrupt Current Process RCF Rewind Cabinet Fans RCKG Read Count Key and Garbage RCKG Read Count Key and Giggle RCL Rotate Carry Left RCP Reschedule Car Payments RCP Rewind Card Punch RCR Rewind Card Reader RCRV Randomly Convert to Reverse Video RCS Read Card and Scramble data RCSD Read Card and Scramble Data RCSD Read Card and Scramble Deck RD Randomize Data RD Reverse Directions RDA Refuse to Disclose Answer RDB Replace Database with Blanks RDB Run Disk Backwards RDD Reverse Disk Drive RDDBF Rock Disk Drive Back and Forth RDEB Read and Drop Even number of Bits RDF Randomize Directory Filenames RDI Reverse Disk Immediate RDI Reverse Drum Immediate RDI Reverse Drun Immediate RDI Rewind Disk Immediate RDK Reverse DisK RDKI Reverse DisK Immediate RDP ReaD card Punch RDR Reverse Disk Rotation RDS ReaD Sideways RENVR REName Variables Randomly RET Read and Erase Tape RF Read Fingerprints RF Rewind Forward RFS Resume Flight Simulator RFSC Read Feed and Shred Card RG Record Garbage RHNEZ Randomize and Halt if Not Equal to Zero RHO Randomize and Hold all Output RIC Rotate Illogical thru Carry RID Read Invalid Data RIG Read Interrecord Gap RIODN Rotate I/O Device Numbers RIOP Rotate I/O Ports RIOS Read In-Only Storage RIR Read Invalid Record RIRG Read Inter-Record Gap RJE Return Jump and Explode RLC Relocate and Lose Core RLC Reread Last Card RLC Rotate Left with Carolyn RLI Rotate Left Indefinitely RLP Refill Light Pen RLP Rewind Line Printer RM Reinitialize Meter RM Ruin My files RMI Randomize Memory Immediate RMM Read Manager's Mind RMT ReMove Trap RMV Remove Memory Virtues RN Read Noise RNBS Reflect Next Bus Signal RNR Read Noise Record ROC Randomize Op Codes ROC Rotate Outward from Center ROD ROtate Diagonally ROLP Rewind On-Line Printer ROM Read Operator's Mind ROO Rub Out Operator ROOP Run Out Of Paper ROPF Read Other People's Files ROS Reject Operating System ROS Return On Shield RP Read Printer RPB Raise Parity Bits RPB Read Print and Blush RPB Reverse Parity and Branch RPBR Reverse Parity and BRanch RPC Rotate Program Counter RPL Read PLotter RPM Read Programmer's Mind RPU Read character and Print Upsidedown RRC Rotate Random thru Carry RRR Randomly Rotate Register RRR Read Record and Run away RRR Rotate Right Randomly RRRL Random Rotate Register Left RRRR Random Rotate Register Right RRSGWSSNK Round and Round She Goes, Where She Stops, Nobody Knows RRSTC Return on Ruby Slippers Triple-Click RRT Record and Rip Tape RRTD Read Rules, Then Delete them RRTU Read Rules, Then Update them RS Random Slew RS Read Sideways RSC Read and Shred Card RSD Read and Shuffle Deck RSD on Read error Self-Destruct RSSC Reduce Speed, Step Carefully [for improved accuracy] RST Rewind and Stretch Tape RSTOM Read from STore-Only Memory RSVP Read, Shred, Vacillate and Punt RT Reduce Throughput RTAB Rewind Tape And Break RTP Reduce ThroughPut RTR Refuse To Run RTS Return To Sender [address unknown] RVAC Return from VACation RWBT ReWind and Break Tape RWC ReWind and Crash heads RWCR ReWind Card Reader RWD ReWind Disk RWDSK ReWind DiSK RWE Run Without Error RWF Read Wrong File RWM ReWind Memory RWOC Read Writing On Card RWRT Read While Ripping Tape RWRT Read, Write, and Rip Tape RWT Read/Write while stretching Tape SA Store Anywhere SABC Shake And Bake Chips SAC Scramble All Channels SAD Search And Destroy SAI Skip All Instructions SAICZ Set All Immediate Constants to Zero [pronounced "sexy"] SAK Snooze At Keyboard SAS Show Appendix Scar SAS Sit And Spin SB Shift a Bit SBE Swap Bits Erratically SBF Skip on Bitbucket Full SBM Shift a Bit More SC Scramble Channels SC Shred Cards SCB Spindle Card and Belch SCCA Short Circuit on Correct Answer SCD Shuffle and Cut Dec SCH Slit Cards Horizontal SCI Shred Cards Immediate SCL Shift a Chip Left SCM Set for Crash Mode SCOM Set Cobol-Only Mode SCP SCatter Printer SCR Shift a Chip Right SCRBL SCRibBLe to disk - faster than a write SCRRC SCRamble Register Contents SCST Switch Channel to Star Trek SCTR Stick Card To Reader SD Scatter Deck SD Scramble Directory SD Slip Disk SD Snare Drum SDAT Scatter DATa SDC Spool Disk to Console SDD Seek and Destroy Data SDD Spin Disk Dry SDDB Snap Disk Drive Belt SDE Solve Differential Equations SDI Self Destruct Immediate SDK Slip DisK SDM Search and Destroy Memory SDR Slam Down Rondo [worst soda ever made] SEB Stop Eating and Burp SEOB Set Every Other Bit SESUR Sing Elvis Songs Until he Returns SEX Set EXecution register SEX Sign EXtend SFH Set Flags to Half-mast SFP Send For Pizza SFR Send For Reinforcements SFT Stall For Time SFTT Strip Form Tractor Teeth SGP Shit or Get off the Pot SHAB SHift A Bit SHABM SHift A Bit More SHB Stop and Hang Bus SHCD SHuffle Card Deck SHIT Stop Here If Thursday SHLBM SHift a Little Bit More SHON Simulate HONeywell CPU [permanent no-op] SHR SHift Random SHRC SHRed Card SHRT SHRed Tape SID Switch to Infinite Density SIP Store Indefinite Precision SIPA SInking Point Arithmetic SJV Scramble Jump Vectors SLC Search for Lost Chord SLP Sharpen Light Pen SLP Sharpen Light Pencil SLPA SLiding Point Arithmetic SM Scatter Memory SMC Scatter Multiplexor Channel SMC Scramble Memory Contents SMD Spontaneous Memory Dump SMR Skip on Meaningless Result SMS Shred Mylar Surface SNAFU System Needs A Fuck-Up SNARF System Normalize And Reset Flags SNM Show No Mercy SNO Send Nukes on Overflow SOAWP SOlve All the World'd Problems SOB Shit On Byte SOB Stew On Brew SOD Surrender Or Die SOI Screw O'coin Intentional [personal one] SOL Shift On Low SOL Shit Out of Luck SOP Stop and Order Pizza SOS Sign Off, Stupid SOT Sit On a Tack SP Scatter Print SPA Sliding Point Arithmetic SPB Simulate Peanut Butter SPD SPin Disk SPD SPin dry Disk SPD Shuffle Program Deck SPOFF Switch Processor OFF SPON Switch Processor ON SPPC Suspend Printing Playboy Calendar SPS Set Panel Switches SPSW Scramble Program Status Word SQPC Sit Quietly and Play with your Crayons SQPWYC Sit Quietly and Play With Your Crayons SRBO Set Random Bits to Ones SRBZ Set Random Bits to Zeroes SRC Select Random Channel SRC Select Reader and Chew cards SRC Skip to Random Channel SRCC Select Reader and Chew Cards SRD Switch to Random Density SRDR Shift Right Double Ridiculous SRNZ Subtract and Reset to NonZero SRO Sort with Random Ordering SROS Store in Read-Only Storage SRR Shift Registers Random SRSD Seek Record and Scar Disk SRSD Seek Record and Scratch Disk SRTC Stop Real-Time Clock SRU Signoff Random User SRZ Subtract and Reset to Zero SSB Scramble Status Byte SSD Scratch System Disk SSD Seek and Scar Disk SSD Stacker Select Disk SSD Stop and Scratch Disk [3815] SSJ Select Stacker and Jam SSJP Select Stacker and JumP SSM Solve by Supernatural Means SSM Stacker Select Memory SSP Seek SPindle SSP Smoke and SPark SST Seek and Stretch Tape SST Stop and Stretch Tape SSW Scramble Status Word ST Set and Test STA STore Anywhere STC Slow To a Crawl STD Stop, Take Drugs STM STretch Magtape STM Skip on Third Monday STO Strangle Tape Operator STPR SToP Rain STRIKE STRIKE for more pay, better hours, etc. STROM STore in Read-Only Memory STTHB Set Terminal to Three Hundred Baud SUIQ Subtract User's IQ SUME SUprise ME SUP Shred User Printout SUP Solve Unsolvable Problem SUR Screw Up Royally SUS Stop Until Spring SUS Subtract Until Senseless SWAT SWAp Terminals SWN SWap Nibbles SWOS Store in Write-Only Storage SWS Sort to Wrong Slots SWT Select Wrong Terminal SWU Select Wrong Unit SWZN Skip Whether Zero or Not SZD Switch to Zero Density TAH Take A Hike TAI Trap Absurd Inputs TARC Take Arithmetic Review Course TBFTG Two Burgers and Fries To Go TC Transmit Colors TCD Transfer Control to Disk TCOL Transfer Control to Overhead Lights TCPL Transfer Control to Pilot Lights TCWS Transfer Control to Wall Socket TDB Transfer and Drop Bits TDRB Test and Destroy Random Bits TDS Trash Data Segment TET Triple Execution Time [SUN] TH Transfer and Hang TLNF Teach me a Lesson i'll Never Forget TLO Turn indicator Lights Off TLR Transfer and Lose Return TLW Transfer and Lose Way TMD Transfer Monitor to Disk TN Take a Nap TOAC Turn Off Air Conditioner TOG Take Out Garbage TOG Time Out, Graduate TOH Take Operator Hostage TOO Turn On/off Operator TOP Trap OPerator TOS Trash Operating System TOW Take Over World TPD Terminal Printer Destruct TPD Total Program Diagnostic TPD Triple Pack Decimal TPDH Tell Programmer to Do it Himself TPF Turn Power oFf TPN Turn Power oN TPO Turn Power Off TPR Tear PapeR TR Turn into Rubbish TRA Te Rdls Arvs [type ridiculous abbreviations] TRD TRansfer and Drop bit TSE Test and Swap if Equal TSH Trap Secretary and Halt TSM Trap Secretary and Mount TST Trash System Tracks TSTT TeSt a biT for Two TT%CN TeleType \(em Clunk Noise TT%EKB TeleType \(em Electrify KeyBoard TTA Try, Try Again TTAS Twist Tape And Shout TTIHLIC Try To Imagine How Little I Care TTITT Turn 2400 foot Tape Into Two 1200 foot Tapes TTL Tap Trunk Line TTL Time To Logoff TYF Trust Your Feelings UA Unload Accumulator UAI Use Alternate Instruction set UAPA(AM) Use All Power Available (And More) UCB Uncouple CPU[s] and Branch UCIP Update Card In Place UCK Unlock Console Keyswitch UCLB Uncouple Comm Lines and Branch UCM Uncouple CoMm lines and branch UDR Update and Delete Record UEPM Update and Erase Programmer's Mind UER Update and Erase Record UFO Unidentified Flag Operation ULDA UnLoaD Accumulator UMH Use Mains voltage as logic High UMR Unlock Machine Room UNPD UNPlug and Dump UOP Useless OPeration UP Understand Program[mer] UPA Use all Power Available UPC Understand Program[mer]'s Comments UPI Undo Previous Instruction URB Update, Resume and Branch US Upset Stacker UTF Unwind Tape onto Floor UTF Use The Force UUBR Use Undefined Base Register VAX Violate All eXecutions VFE Violate Field Engineer VFO Violate Female Operator VM Virtueless Memory VMA Violate Maintenance Agreement VNO Violate Noise Ordinance VPA Vanishing Point Arithmetic VVM Vaporize Virtual Memory WAD Walk Away in Disgust WAT WAste Time WBB Write to the Bit Bucket WBT Water Binary Tree WC Waste Core WCKG Write Count Key and Giggle WCR Write to Card Reader WDR Warp disk DRive WED Write and Erase Data WEMG Write Eighteen Minute Gap WF Wait Forever WGPB Write Garbage in Process-control Block WHFO Wait until Hell Freezes Over WHP Wave Hands over Program WHR Write Hit Record WI Why Immediate WI Write Illegibly WID Write Invalid Data WMC Write Millions of Comments WMTE Wrap Memory Transfer Erase WN Why Not? WNAM We Need A Miracle WNHR Write New Hit Record WNR Write Noise Record WP Write Poop WPET Write Past End of Tape WPF Write to Protected Files WPM Write Programmer's Mind WRC Write on Read-Cycle WRP Write RAM Permanently WSE Write Stack Everywhere WSWW Work in Strange and Wondrous Ways WUPO Wad Up Printer Output WWLR Write Wrong Length Record WWR Write Wrong Record XAND eXclusive AND XIO eXecute Invalid Opcode XKF eXecute Kermit the Frog XM eXclusive Maybe XMB eXclusive MayBe XOH eXecute no-Op and Hang XOR eXecute OpeRator XOS eXchange Operator's Sex XPR eXecute PRogrammer XPSW eXecute Program Status Word XSP eXecute Systems Programmer XVF eXchange Virtue for Fun YAB Yet Another Bug YASE Yet Another Stupid Error ZAP Zero and Add Packed ZAR Zero Any Register ZD Zap Directory ZEOW Zero Every Other Word ZPI ZaP Immediate
Back to my Computer Jokes Page
Back to my humor page
Back to my home page