Addressing modes (Effective addressing (ea))

Quick links.
  NOP - take no action. Used to stall CPU in pipe line situations
  Implied
  Stack
  Immediate
  Register
  Direct
  PC Relative
  Skip - skips next instruction if certain conditions in effect.
  Conditional execution - like skip except part of instruction.
    Skips current instruction if certain conditions in effect. 
  Indirect
  Indexed
  Scaled - version of indexed that adjusts index by a defined amount, 
    usually a power of 2
  Displacement