def run(self):
self.program_scanner = ProgramScanner(self.program_memory, self.registers)
self.ops = Operations(self.program_scanner, self.memory, self.registers)
while self.running:
opcode = self.program_scanner.nextOpcode()
op = self.ops.fromCode(opcode)
op()
if self.registers.pc > self.last_op_index:
self.running = False
class Processor(object):
def __init__(self, debug=False):
self.name = "Untitled Program"
# Initialize critical elements: registers, memory, etc
self.debug = debug
self.program_memory = bytearray()#[]
self.memory = bytearray()
self.registers = Registers()
self.running = True
def load(self, code, name=None):
if name is not None:
self.name = name
get_bytes = lambda x: [code.pop(0) for i in range(x)]
# Check file header
self.check_header(get_bytes(3))
data_size = pack_bytes(get_bytes(2))
for i in range(0, data_size):
self.memory.append(code.pop(0))
self.program_memory.extend(code)
self.last_op_index = len(self.program_memory) - 1
def load_from_file(self, filename):
with open(filename, "rb") as f:
self.load(f.read(), name=filename)
def check_header(self, header):
if bytearray(header) != bytearray(b'\x84\x56\x49'):
raise exp.InvalidFile
def run(self):
self.program_scanner = ProgramScanner(self.program_memory, self.registers)
self.ops = Operations(self.program_scanner, self.memory, self.registers)
while self.running:
opcode = self.program_scanner.nextOpcode()
op = self.ops.fromCode(opcode)
op()
if self.registers.pc > self.last_op_index:
self.running = False
def __repr__(self):
string = "\tMain Memory:\t%s\n" % str(self.memory)
string += "\tProgram Memory:\t%s\n" % str(self.program_memory)
string += "\tRegisters:\t%s\n" % str(self.registers)
return string
