def test_creating_virtual_memory(self):
r_mem = RealMemory()
code = [
'namo:LR1 00a',
'LR2 00a\n',
'CMP ',
u'JE «namo» \n'.encode('utf-8'),
]
data = [
'[a]:labas\n\n\n\n',
]
vmcode, vmdata = r_mem.create_virtual_memory(code, 1, data, 1)
assert vmcode[0] == 'LR1 00a '
assert r_mem.get_data((16, 0), 8 * 16) == (
'LR1 00a '
'LR2 00a '
'CMP '
'JE 000 ' + '00000000' * 12)
assert vmdata[10] == 'labas '
assert r_mem.get_data((17, 0), 8 * 16) == (
'00000000' * 10 + 'labas ' + '00000000' * 5)
class RealMachine(object):
u""" Realią mašiną simuliuojantis objektas.
"""
def __init__(self, cell_handler=None):
u""" Inicializuoja mašinos objektą.
"""
self.real_memory = RealMemory(cell_handler)
self.processor = Processor(self.real_memory)
self.virtual_memory_data = None
self.virtual_memory_code = None
def passHandler(self, cell_handler):
self.real_memory.SetHandler(cell_handler)
def load_virtual_machine(
self, file, stdin_handler=None, stdout_handler=None):
u""" Pakrauna virtualią mašiną.
"""
code = []
code_size = None
data = []
data_size = None
if isinstance(file, str) or isinstance(file, unicode):
with open(file) as fp:
code_segment = False
data_segment = False
for line in fp:
if not code_segment and not data_segment and \
line == 'CODE\n':
code_segment = True
continue
elif code_segment and not data_segment and \
line == 'ENDCODE\n':
code_segment = False
continue
elif not code_segment and not data_segment and \
line.startswith('DATA '):
data_segment = True
data_size = int(line[4:])
continue
elif not code_segment and data_segment and \
line == 'ENDDATA\n':
data_segment = False
continue
if code_segment:
code.append(line)
if data_segment:
data.append(line)
code_size = int(ceil(float(len(code)) / BLOCK_SIZE))
self.virtual_memory_code, self.virtual_memory_data = \
self.real_memory.create_virtual_memory(
code, code_size, data, data_size,
stdin_handler, stdout_handler)
self.pager = self.virtual_memory_code.pager
self.processor.PLR = self.virtual_memory_code.pager.PLR
self.processor.PLBR = self.virtual_memory_code.pager.PLBR
self.processor.set_virtual_memory(
self.virtual_memory_code, self.virtual_memory_data,
self.pager)
self.processor.IC = 0
# TODO: Atidaryti išorinius failus.
else:
# Šitas if iš esmės skirtas tam, jei kartais butų visgi
# nuspręsta pasinaudoti „#!/usr/bin/pyemu“ funkcionalumu.
raise Exception('Not implemented!')