Related:

• patch space: n. An unused block of bits left in a binary so that it can later be modified by insertion of machine-language instructions there (typically
  he patch space is modified to contain new code, and the superseded code is patched to contain a jump or call to the patch space)....
• patch 1. n. A temporary addition to a piece of code, usually as a quick-and-dirty remedy to an existing bug or misfeature.
  A patch may or may not work, and may or may not eventually be incorporated permanently into the program....
• o-op: /noh'op/ alt. NOP /nop/ [no operation] n. 1.
  (also v.) A machine instruction that does nothing (sometimes used in assembler-level programming as filler for data or patch areas, or to overwrite code to be removed in binaries)....
• o-op /noh'op/ n.,v. alt. NOP /nop/ [no operation] 1.
  A machine instruction that does nothing (sometimes used in assembler-level programming as filler for data or patch areas, or to overwrite code to be removed in binaries)....
• diff /dif/ n. 1. A change listing, especially giving differences between (and additions to) source code or documents (the term is often used in the plural `diffs').
  Send me your diffs for the Jargon File!" Compare vdiff....
• diff: /dif/ n. 1. A change listing, especially giving differences between (and additions to) source code or documents (the term is often used in the plural `diffs').
  Send me your diffs for the Jargon File!" Compare {vdiff}....
• Don't comment or patch bad code; rewrite it.
• bit-paired keyboard n.,obs. (alt. `bit-shift keyboard') A non-standard keyboard layout that seems to have originated with the Teletype ASR-33 and remained common for several years on early computer equipment.
  The ASR-33 was a mechanical device (see EOU), so the only way to generate the character codes from keystrokes was by some physical linkage....
• After 40 its patch, patch, patch