def run(self):
''' create virtual machine '''
# get load task
if self.used_resources.get_by_class(TaskLoaded) is None:
kernel.ask_for_resource(
kernel_data.RESOURCES.get_by_class(TaskLoaded), self,
TaskLoaded)
return
in_data = True
ds_length = 0
cs_length = 0
# manual ugly counting
for address in self.used_resources.get_by_class(TaskLoaded).addresses:
if user_memory.fetch(address) == "CODE":
in_data = False
cs_length -= 1
if in_data:
ds_length += 1
else:
cs_length += 1
kernel.create_process(
VirtualMachine, self, {
'ds_length': ds_length,
'cs_length': cs_length,
'addresses':
self.used_resources.get_by_class(TaskLoaded).addresses
})
kernel.delete_resource(self.used_resources.get_by_class(TaskLoaded))
def run(self):
''' create virtual machine '''
# get load task
if self.used_resources.get_by_class(TaskLoaded) is None:
kernel.ask_for_resource(kernel_data.RESOURCES.get_by_class(TaskLoaded), self, TaskLoaded)
return
in_data = True
ds_length = 0
cs_length = 0
# manual ugly counting
for address in self.used_resources.get_by_class(TaskLoaded).addresses:
if user_memory.fetch(address) == "CODE":
in_data = False
cs_length -= 1
if in_data:
ds_length += 1
else:
cs_length += 1
kernel.create_process(VirtualMachine, self, { 'ds_length' : ds_length, 'cs_length' : cs_length, 'addresses' : self.used_resources.get_by_class(TaskLoaded).addresses })
kernel.delete_resource(self.used_resources.get_by_class(TaskLoaded))
def update_info(self):
''' update values on screen '''
self.ax_info.set_text(str(processor.r[0]))
self.bx_info.set_text(str(processor.r[1]))
self.cs_info.set_text(str(processor.cs))
self.ds_info.set_text(str(processor.ds))
self.c_info.set_text(str(processor.c))
self.ic_info.set_text(str(processor.ic))
self.c_info.set_text(str(processor.c))
self.chst0_info.set_text(str(processor.chst[0]))
self.chst1_info.set_text(str(processor.chst[1]))
self.chst2_info.set_text(str(processor.chst[2]))
self.pi_info.set_text(str(processor.pi))
self.si_info.set_text(str(processor.si))
self.ti_info.set_text(str(processor.ti))
self.ioi_info.set_text(str(processor.ioi))
self.time_info.set_text(str(processor.time))
self.mode_info.set_text(str(processor.mode))
self.ptr_info.set_text(str(processor.ptr))
# updating virtual memory
self.update_virtual_memory()
# updating output
self.output_buffer.set_text(output_device.output)
# updating commands
string = ""
for i in range(5):
string += str( user_memory.fetch(to_hex(to_int(processor.ic) + i))) + '\n'
self.commands_buffer.set_text(string)
def update_real(self, widget):
addr = self.real_address.get_text()
# some regexp validation should be here
i = 0
for widget in self.realtable:
widget.set_text(str( user_memory.fetch( to_hex(to_int(addr) + i) )))
i += 1
def run(self):
''' execute user task until interrupt is encountered '''
self.update()
command = user_memory.fetch(self.ic)
if command[0:2] == 'LA':
self.LA(command[2:4])
elif command[0:2] == 'LB':
self.LB(command[2:4])
elif command[0:2] == 'MA':
self.MA(command[2:4])
elif command[0:2] == 'MB':
self.MB(command[2:4])
elif command[0:2] == 'WS':
self.WS(command[2:4])
elif command[0:2] == 'LS':
self.LS(command[2:4])
elif command[0:2] == 'JM':
self.JM(command[2:4])
elif command[0:2] == 'JL':
self.JL(command[2:4])
elif command[0:2] == 'JE':
self.JE(command[2:4])
elif command[0:2] == 'PD':
pass
elif command[0:3] == 'ADD':
self.ADD()
elif command[0:3] == 'SUB':
self.SUB()
elif command[0:3] == 'CMP':
self.CMP()
elif command[0:3] == 'END':
self.END()
return
elif command == 'SWAP':
self.SWAP()
elif command == 'AXOR':
self.AXOR()
elif command == 'BXOR':
self.BXOR()
else:
processor.pi = 2
kernel.create_resource(InterruptEvent, self, {'process' : self, 'message' : str(command) })
self.state = configs.BLOCKED_STATE
kernel.schedule()
return
logger.log("COMMAND EVALUATED: " + command)
logger.log("TIME IS : " + str(processor.time))
self.update_time(2)
if self.time_is_over():
processor.ti = 1
kernel.create_resource(InterruptEvent, self, {'process' : self, 'message' : None })
self.state = configs.BLOCKED_STATE
kernel.schedule()
def __init__(self, opts = {}):
opts['name'] = 'vm_' + str(kernel_data.PID)
opts['priority'] = configs.LOADER_PRIORITY
Process.__init__(self, opts)
self.cs_length = opts['cs_length']
self.ds_length = opts['ds_length']
self.addresses = opts['addresses']
# state
self.ic = None
self.num = self.ds_length + 1 # skip DATA SEGMENT
# prepare DS
for i in range(1, self.ds_length):
data = user_memory.fetch(self.addresses[i])
if data[0:2] != "DW":
processor.pi = 2
kernel.create_resource(InterruptEvent, self, {'process' : self })
else:
user_memory.write(to_hex(to_int(data[2:4])), self.addresses[i])
def __init__(self, opts={}):
opts['name'] = 'vm_' + str(kernel_data.PID)
opts['priority'] = configs.LOADER_PRIORITY
Process.__init__(self, opts)
self.cs_length = opts['cs_length']
self.ds_length = opts['ds_length']
self.addresses = opts['addresses']
# state
self.ic = None
self.num = self.ds_length + 1 # skip DATA SEGMENT
# prepare DS
for i in range(1, self.ds_length):
data = user_memory.fetch(self.addresses[i])
if data[0:2] != "DW":
processor.pi = 2
kernel.create_resource(InterruptEvent, self, {'process': self})
else:
user_memory.write(to_hex(to_int(data[2:4])), self.addresses[i])
def LS(self, XY):
''' Value of ax is sent to shared memory '''
value = user_memory.fetch(to_hex(configs.SH_MEMEORY_STARTING_BLOCK * configs.BLOCK_SIZE + to_int(XY[0]) * configs.BLOCK_SIZE + to_int(XY[1])))
self.set_ax(value)
def read_from_ds(self, XY):
''' read word from given virtual address '''
return user_memory.fetch(self.get_real_address_of_ds(XY))
def run(self):
''' execute user task until interrupt is encountered '''
self.update()
command = user_memory.fetch(self.ic)
if command[0:2] == 'LA':
self.LA(command[2:4])
elif command[0:2] == 'LB':
self.LB(command[2:4])
elif command[0:2] == 'MA':
self.MA(command[2:4])
elif command[0:2] == 'MB':
self.MB(command[2:4])
elif command[0:2] == 'WS':
self.WS(command[2:4])
elif command[0:2] == 'LS':
self.LS(command[2:4])
elif command[0:2] == 'JM':
self.JM(command[2:4])
elif command[0:2] == 'JL':
self.JL(command[2:4])
elif command[0:2] == 'JE':
self.JE(command[2:4])
elif command[0:2] == 'PD':
pass
elif command[0:3] == 'ADD':
self.ADD()
elif command[0:3] == 'SUB':
self.SUB()
elif command[0:3] == 'CMP':
self.CMP()
elif command[0:3] == 'END':
self.END()
return
elif command == 'SWAP':
self.SWAP()
elif command == 'AXOR':
self.AXOR()
elif command == 'BXOR':
self.BXOR()
else:
processor.pi = 2
kernel.create_resource(InterruptEvent, self, {
'process': self,
'message': str(command)
})
self.state = configs.BLOCKED_STATE
kernel.schedule()
return
logger.log("COMMAND EVALUATED: " + command)
logger.log("TIME IS : " + str(processor.time))
self.update_time(2)
if self.time_is_over():
processor.ti = 1
kernel.create_resource(InterruptEvent, self, {
'process': self,
'message': None
})
self.state = configs.BLOCKED_STATE
kernel.schedule()
def LS(self, XY):
''' Value of ax is sent to shared memory '''
value = user_memory.fetch(
to_hex(configs.SH_MEMEORY_STARTING_BLOCK * configs.BLOCK_SIZE +
to_int(XY[0]) * configs.BLOCK_SIZE + to_int(XY[1])))
self.set_ax(value)
def read_from_ds(self, XY):
''' read word from given virtual address '''
return user_memory.fetch(self.get_real_address_of_ds(XY))
def update_page_table(self):
i = 0
for widget in self.pgtable:
widget.set_text(str( user_memory.fetch(to_hex(to_int(processor.ptr) + i)) ))
i += 1