binja-pasticciotto/__init__.py

from binaryninja import *

class Pasticciotto(Architecture):
    name = 'pasticciotto'
    address_size = 2
    default_int_size = 2

    regs = {
        'r0': RegisterInfo('r0', 2),
        'r1': RegisterInfo('r1', 2),
        'r2': RegisterInfo('r2', 2),
        'r3': RegisterInfo('r3', 2),
        's0': RegisterInfo('s0', 2),
        's1': RegisterInfo('s1', 2),
        's2': RegisterInfo('s2', 2),
        's3': RegisterInfo('s3', 2),
        'rp': RegisterInfo('rp', 2),
        'sp': RegisterInfo('sp', 2),
        'ip': RegisterInfo('ip', 2)
    }
    stack_pointer = 'sp'
    link_reg = 'rp'

    def perform_get_instruction_info(self, data, addr):
        print("DATA: {}".format(data))
        print("ADDR: {}".format(addr))

        result = InstructionInfo()
        result.length = 0
        # eventuali branch da aggiungere
        return result

    def perform_get_instruction_text(self, data, addr):
        print("DATA: {}".format(data))
        print("ADDR: {}".format(addr))

        tokens = ""
        length = 0
        
        return tokens, length

class DefaultCallingConvention(CallingConvention):
    name = 'default'
    int_arg_regs = ['r0', 'r1', 'r2', 'r3']
    int_return_reg = 'r0'
    high_int_return_reg = 'r1'

Pasticciotto.register()
arch = Architecture['pasticciotto']
arch.register_calling_convention(DefaultCallingConvention(arch))
standalone = arch.standalone_platform
standalone.default_calling_convention = arch.calling_conventions['default']