UNLK: M68K instruction reference - ASM Editor

unlkUnlink 
Loads a7 from the address register, then pops a long from the stack into that register.
Used in bsr, rts, link and unlkM68K assembly
Stack arguments and a stack frameM68K assembly
Recursion: factorial and FibonacciM68K assembly
 
XNZVC –––––
Changes no flag
Forms  unlk   
Operands An An address register, a0 to a7; sp is another name for a7. More
 * --- Used with link to tear down a stack frame ---
link a6, #-8
move.l #$1234, -4(a6)
move.l #$5678, -8(a6)
unlk a6 ; sp = a6, a6 = (sp)+