Related:

• HACF: Halt And Catch Fire
• HCFI: Halt and Catch Fire Immediate
• HCF /H-C-F/ n. Mnemonic for `Halt and Catch Fire'
  any of several undocumented and semi-mythical machine instructions with destructive side-effects, supposedly included for test purposes on several well-known architectures going as far back as the IBM 360....
• HCF: /H-C-F/ n. Mnemonic for `Halt and Catch Fire'
  any of several undocumented and semi-mythical machine instructions with destructive side-effects, supposedly included for test purposes on several well-known architectures going as far back as the IBM 360....
• Proposed Additions to the PDP-11 Instruction Se
• BCF: Branch and Catch Fire
• JRCF: Jump Relative and Catch Fire
• We sweat so we don't catch fire when making love.
• HALT: No-Op