Added with 80186/80188 Instruction Set Architecture (ISA)

Instructions added with the 80186/80188 processors:

• BOUND
  Check Array Index Against Bounds
• ENTER
  Make Stack Frame for Procedure Parameters
• INS/INSB/INSW
  Input from Port to String
• LEAVE
  High Level Procedure Exit
• OUTS/OUTSB/OUTSW
  Output String to Port
• POPA
  Pop All General-Purpose Registers
• PUSHA
  Push All General-Purpose Registers