yannayl

def spoils(f):
    """return the list of spoiled registers
    default is r0-r3
    not too smart, but safe - i.e. if list of spoiled registers is smaller than 4 - it's quite safe to assume only these registers are spoiled
    the opposite is false
    """
    spoiled = ['R0', 'R1', 'R2', 'R3']
    
    if any(f.xrefs_from):
        return spoiled

yannayl

import sark
import construct as ct
import ida_xref

## I have dumped the memory content to ram.bin
dump = open("ram.bin", "rb").read()
ram = sark.Segment(name='RAM')

## memoizing can make it more efficient but IDC
def in_segs(ea, segs):

yannayl

def db(word_size, alphabet_size):
    L1 = alphabet_size**(word_size-1)
    lookup_table = {}
    i = 0
    for _ in range(L1*alphabet_size):
        if i not in lookup_table:
            lookup_table[i] = alphabet_size - 1
        
        s = lookup_table[i]
        yield alphabet_size - s - 1