def unary_arith(stream, machine):
s = machine.pop()
l = len(s)
x = s.signed(endian="little")
if l > 4:
raise InvalidTransactionException('Integer longer than 4 bytes')
machine.push(bytestream.fromsigned(f(x), l))
def binary_arith(stream, machine):
s1 = machine.pop()
l1 = len(s1)
x1 = s1.signed(endian="little")
s2 = machine.pop()
l2 = len(s2)
x2 = s2.signed(endian="little")
machine.push(bytestream.fromsigned(f(x1,x2), max(l1,l2)))
def binary_arith(stream, machine):
s1 = machine.pop()
l1 = len(s1)
x1 = s1.signed(endian="little")
s2 = machine.pop()
l2 = len(s2)
x2 = s2.signed(endian="little")
if l1 > 4 or l2 > 4: # input is longer than 4 bytes
raise InvalidTransactionException('Integer longer than 4 bytes')
machine.push(bytestream.fromsigned(f(x1,x2), max(l1,l2)))
def ternary_arith(stream, machine):
s1 = machine.pop()
l1 = len(s1)
x1 = s1.signed(endian="little")
s2 = machine.pop()
l2 = len(s2)
x2 = s2.signed(endian="little")
s3 = machine.pop()
l3 = len(s2)
x3 = s2.signed(endian="little")
machine.push(bytestream.fromsigned(f(x1,x2,x3), max(l1,l2,l3)))
def unary_arith(stream, machine):
s = machine.pop()
l = len(s)
x = s.signed(endian="little")
machine.push(bytestream.fromsigned(f(x), l))
