CHAPTER 3 CPU ARCHITECTUREUser’s Manual U16899EJ2V0UD 813.4.9 Stack addressing[Function]The stack area is indirectly addressed with the stack pointer (SP) contents.This addressing method is automatically employed when the PUSH, POP, subroutine call and returninstructions are executed or the register is saved/reset upon generation of an interrupt request.With stack addressing, only the internal high-speed RAM area can be accessed.[Description example]In the case of PUSH DE (saving DE register)Operation code 1 0 1 1 0 1 0 1[Illustration]EFEE0HSPSPFEE0HFEDFHFEDEHDMemory 07FEDEH
