EXTENDED OP-CODE SET FOR 8088/8086 OR WHAT INTEL FORGOT TO TELL The following op-codes have been recently uncovered on the back of several used bar napkins in Silicon Valley, CA. Several attempts have been made to get confirmation of these heretofore unknown codes, but Intel vehemently denies the existence of these in the 8088/8086 command set. Several man-years have gone into the research of these codes. We would like to thank the programmers responsible for discovering them. Unfortunately, most of them are currently residents of the South Dakota Home for the Mentally Unfit, and are unable to receive mail. A final warning is in order. Since Intel denies the existence of these codes, support of them cannot be guaranteed in subsequent hardware and/or software releases. Please use with caution. INSTRUCTION DEFINITION ----------- ------------------------------------------------ BAH Branch and hang BIA Branch to invalid address BST Backspace and stretch tape CNR Call subroutine (no return) CRN x Convert to roman numerals (specify base x) DAK Disable keyboard DAP Deselect active peripherals DO Divide and overflow IIB Ignore interrupt and branch DSH Destroy sector header DWIT Do what I'm thinking (works intermittently) EAOP Encrypt all output ED Eject disk EDF Erase data file CMI Clobber monitor immediate EDR Execute destructive read EIOC Execute invalid op-code EP Execute programmer ERM Erase reserved memory FFC Form feed (continuous) FOPC (set) False out of paper condition HCF Halt and catch fire HRPR Hang and ruin printer ribbon IDPS Ignore disk protect switch (or tab) IEOF Ignore end of file MLR Move and lose record PBD Print and break drum (who remembers those?) PIC Punch invalid code PSO Punch system operator PPL Perform perpetual loop RAST Read and shred tape RDD Randomize disk directory RDI Reverse disk immediate RFF Reverse form feed RIP Randomize instruction pointer RIR Read invalid record RLF Reverse line feed RS Random slew (usually best for plotters) RSP Randomize stack pointer RSS Reset system SAT Scramble allocation table SFTT Strip form tractor teeth RIRG Read inter-record gap SIP Scramble ISAM pointers SMD Spontaneous memory dump SRSD Seek record and scar disk SRZ Subtract and reset to zero SSB Scramble status byte SSJ Select stacker and jam TDB Transfer and drop bits TTS Translate to Sanskrit UDR Update and delete record WUPO Wad up paper output CAH Crash all heads ACQT Advance clock to quitting time (works best on Fridays) ZD Zap directory X-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-X Another file downloaded from: NIRVANAnet(tm) & the Temple of the Screaming Electron Jeff Hunter 510-935-5845 Salted Slug Systems Strange 408-454-9368 Burn This Flag Zardoz 408-363-9766 realitycheck Poindexter Fortran 415-567-7043 Lies Unlimited Mick Freen 415-583-4102 Tomorrow's 0rder of Magnitude Finger_Man 408-961-9315 My Dog Bit Jesus Suzanne D'Fault 510-658-8078 Specializing in conversations, obscure information, high explosives, arcane knowledge, political extremism, diversive sexuality, insane speculation, and wild rumours. ALL-TEXT BBS SYSTEMS. Full access for first-time callers. We don't want to know who you are, where you live, or what your phone number is. We are not Big Brother. "Raw Data for Raw Nerves" X-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-X