Script(ing/ed/able) Code Compiler Code

# coding: iso-8859-1
#
# script(ed/able/ing/ful) code compiler
# (c)2006 Tiago Rezende
# Distributed freely.
#


class BigEndian:
    def encodeInteger(self,number):
        # encodes an Integer to a byte list, most-significant byte first
        result = []
        if (number<0):
            sign = -1
            number = -number
        else:
            sign = +1
        while (number>0):
            byte = number & 255
            number = number / 256
            result = [byte]+result
        return [sign]+result
    def decodeInteger(self,bytelist):
        result = 0
        for x in bytelist:
            result = (result*256) + x
        return result

class LittleEndian:
    def encodeInteger(self,number):
        # encodes an Integer to a byte list, most-significant byte first
        result = []
        if (number<0):
            sign = -1
            number = -number
        else:
            sign = +1
        while (number>0):
            byte = number & 255
            number = number / 256
            result = result+[byte]
        return [sign]+result
    def decodeInteger(self, bytelist):
        result = 0
        base = 0
        for x in bytelist:
            result = result+(x*(256^base))
            base = base+1
        return result

class MemoryEncoding:
    def __init__(self, bytes, endianess, schemes):
        self.bytes = bytes
        self.endianess = endianess
        self.schemes = schemes
    def encodeImmediate(self,imm,scheme):
        return self.schemes[scheme]

class RegisterScheme:
    def __init__(self, name):
        self.name = name

class RegisterSpace:
    def __init__(self):
        pass
        
class Register:
    def __init__(self, name, schemes):
        self.name = name
        self.schemes = schemes
    def output(self,scheme):
        return self.schemes[scheme]

class InstructionPrefix:
    def __init__(self, name, schemes):
        self.name = name
        self.schemes = schemes

class Instruction:
    def __init__(self, name, schemes):
        self.name = name
        self.schemes = schemes