>How do we know that there isn't spyware or malware or a rootkit or whatever, embedded in the ghidra code itself?
You mean so the NSA could get access to your personal information?
Have you even thought this through or are you just typing things as they flash into your little brain?
I don't know if these are commonly available but i built a python script hex to decimal calculator. Thought I'd share here.
"""
hex to decimal calculator
"""
value = input('Please enter the hexidecimal code here: ')
h = {'1':'1', '2':'2', '3':'3', '4':'4', '5':'5', '6':'6', '7':'7', '8':'8', '9':'9', 'a':'10', 'b':'11', 'c':'12', 'd':'13', 'e':'14', 'f':'15', '10':'16'}
lst = list()
for item in value:
item = item.lower()
converted = h.get(item, 0)
lst.append(converted)
print(lst)
x = int(lst[0])*4096
y = int(lst[1])*256
z = int(lst[2])*16
xx = int(lst[3])*1
print(x, y, z, xx)
total_sum = (x + y + z + xx)
print('Total "Decimal Value" of Hex Code:', total_sum)