def __init__(self):
self.r = [VMGeneralPurposeRegister() for _ in xrange(16)]
self.fr = 0
self.sp = self.r[14]
self.pc = self.r[15]
self.mem = VMMemory()
self.terminated = False
self.opcodes = VM_OPCODES
self.sp.v = 0x10000
self.cr = {}
# Interrupt registers.
for creg in xrange(self.CREG_INT_FIRST, self.CREG_INT_LAST + 1):
self.cr[creg] = 0xffffffff
self.cr[self.CREG_INT_CONTROL] = 0 # Maskable interrupts disabled.
self.dev_pit = VMDeviceTimer(self)
self.dev_console = VMDeviceConsole(self)
self.io = {
0x20: self.dev_console,
0x21: self.dev_console,
0x22: self.dev_console,
0x70: self.dev_pit,
0x71: self.dev_pit
}
self.interrupt_queue = []
self.interrupt_queue_mutex = threading.Lock()
self.defered_queue = collections.deque()
