Related:

• RTI: /R-T-I/ interj. The mnemonic for the `return from interrupt' instruction on many computers including the 6502 and 6800.
  The variant `RETI' is found among former Z80 hackers (almost nobody programs these things in assembler anymore)....
• POPJ: /pop'J/ [from a {PDP-10} return-from-subroutine instruction] n.
  v. To return from a digression. By verb doubling, "Popj, popj" means roughly "Now let's see, where were we?...
• POPJ /pop'J/ n.,v. [from a PDP-10 return-from-subroutine instruction] To return from a digression.
  By verb doubling, "Popj, popj" means roughly "Now let's see, where were we?" See RTI....
• ACK: /ak/ interj. 1. [from the ASCII mnemonic for 0000110] Acknowledge.
  Used to register one's presence (compare mainstream *Yo!...
• NAK: /nak/ [from the ASCII mnemonic for 0010101] interj.
  1. On-line joke answer to {ACK}?: "I'm not here....
• ap: 1. n. A program interrupt, usually an interrupt caused by some exceptional situation in the user program.
  In most cases, the OS performs some action, then returns control to the program....
• wab: /swob/ [From the mnemonic for the PDP-11 `SWAp Byte' instruction, as immortalized in the `dd(1)' option `conv=swab' (see {dd})] 1.
  vt. To solve the {NUXI problem} by swapping bytes in a file....
• push: [from the operation that puts the current information on a stack
  and the fact that procedure return addresses are saved on a stack] (Also PUSH /push/ or PUSHJ /push'J/, the latter based on the PDP-10 procedure call instruction....
• interrupt: 1. [techspeak] n. On a computer, an event that interrupts normal processing and temporarily diverts flow-of-control through an "interrupt handler" routine.
  See also {trap}. 2. interj. A request for attention from a hacker....