nop

plural nops · alternative NOP

1. computingA no-op; a CPU instruction that does nothing.

   2004, Patterson et al, Computer Organization and Design: The Hardware/Software Interface Notice that in computing CPI or IPC, we do not count any nops executed as useful instructions.

   1 more example

   The MIPS instruction set is rich in nops, since any instruction with zero as a destination is guaranteed to do nothing.

   1999, Dominic Sweetman, See MIPS Run

   Synonyms: no-op

present singular third person nops · participle present nopping · participle past nopped · past nopped · alternative NOP

1. computingTo replace machine code with nop instructions when modifying software.

   For example, if there is a CALL 3140 and we want to skip this call, we can NOP it out.

   1992, The Cyborg, The Cracking Manual

   1 more example

   Worse, some patching can result in codes which cannot be executed: for example nopping the load which provides the value for the denominator of a division can result in a division by zero.

   2012, Michael W. Berry, Kyle A. Gallivan, Efstratios Gallopoulos, High-Performance Scientific Computing: Algorithms and Applications

1. alternativeinformalrareAlternative form of nope.

plural Nops

1. A surname.

plural NOPs

1. Alternative letter-case form of nop.

present singular third person NOPs · participle present NOPing · participle past NOPed · past NOPed

1. Alternative letter-case form of nop.

1. rail transportThe station code of North Point in Hong Kong.