Instruction Set Architecture—IP2022 User’s Manual 192 www.ubicom.com PUSH fr Move fr onto Top of Stack Operation: (SP) = fr
SP = SP - 1 Bits affected: None Opcode: 0100 010f ffff ffff Description: This instruction copies the specified data memory
location    to    the    register    addressed    by    the
SPH/SPL register, then decrements the SPH/SPL
register.    This    stack    is    independent    of    the
hardware  stack  used  for  subroutine  calls  and
returns. Cycles: 1 Example: push  0x1F0 ;push 0x1F0 onto stack The push instruction in this example pushes the
contents of the data memory location at address
0x1F0 onto the stack.