| Halt and Catch Fire (HCF) Any of several undocumented and semi-mythical with destructive side-effects, supposedly included for test purposes on several well-known architectures going as far back as the . The was the first for which an HCF became widely known. This instruction caused the processor to a subset of the lines as rapidly as it could; in some configurations this could actually cause lines to burn up. [Confirm?] (1995-12-14) |