def do_get_memory(self, args):
args = split_args(args, 2, 0)
if (args == None):
return False
memory = self.simulator.memory
start = int(args[0], 0)
length = int(args[1], 0)
# round down to nearest multiple of 8 to keep alignment
start -= start % 8
for i in range(length):
loc = start + i
if (loc % 8 == 0):
print(long_hex(loc), end=' ')
ending = ' '
if (i % 4 == 3):
ending = ' '
if (i % 8 == 7):
ending = '\n'
value_str = bytes(memory.get(Memory.Byte, loc)).hex()
print(value_str, end=ending)
print('') # newline
def do_get_registers(self, args):
args = split_args(args, 0, 1)
if (args == None):
return False
if (len(args) == 0):
output = ''
for i, reg in enumerate(Register):
value_hex = long_hex(self.simulator.get_register_value(reg))
output += '{:<16}'.format(reg.name + ': ' + value_hex)
if (i % 4 == 3):
output += '\n'
print(output)
else:
# get the one passed in
try:
reg = Register[args[0]]
value_hex = long_hex(self.simulator.get_register_value(reg))
print(value_hex)
except KeyError:
print('[ERROR] unrecognized register ' + args[0])
return False
def do_assemble(self, args):
args = split_args(args, 1, 1)
if(args == None):
return False
length = len(args)
try:
in_file = open(args[0])
out_file = open(args[1], 'w') if length == 2 else sys.stdout
assembled, issues = assembler.parse(in_file.read(-1))
pretty_json = json.loads(assembled.to_json())
out_file.write(json.dumps(pretty_json, indent=4, sort_keys=True))
if not issues:
return
if(len(issues) != 0):
print('----- ISSUES -----')
for issue in issues:
print('{}: {}\n'.format(issue[1], issue[0]))
in_file.close()
if length == 2:
out_file.close()
except FileNotFoundError as not_found:
print('[Error] file: ' + str(not_found) + ' does not exist')
def do_dump_memory(self, args):
args = split_args(args, 1, 0)
if (args == None):
return False
out_file = open(args[0], 'wb')
self.simulator.save_memory(out_file)
out_file.close()
def do_set_register(self, args):
args = split_args(args, 2, 0)
if (args == None):
return False
# get the one passed in
try:
reg = Register[args[0]]
value = int(args[1], 0) #let python automatically determine base
self.simulator.set_register_value(reg, value)
except KeyError:
print('[ERROR] unrecognized register ' + args[0])
return False
def do_load_memory(self, args):
args = split_args(args, 1, 0)
if (args == None):
return False
try:
in_file = open(args[0], 'rb')
self.simulator.load_memory(in_file)
in_file.close()
except FileNotFoundError as not_found:
print('[Error] file: ' + str(not_found) + ' does not exist')
def do_set_memory(self, args):
args = split_args(args, 3, 0)
if (args == None):
return False
memory = self.simulator.memory
start = int(args[0], 0)
length = int(args[1], 0)
value = args[2]
# trim off optional prefix
if (value[0:2] == '0x'):
value = value[2:]
# check lengths
if (len(value) % 2 != 0 or len(value) // 2 != length):
print('length of value and given length do not match')
return False
for i in range(length):
loc = start + i
memory.set(Memory.Byte, loc,
bytearray.fromhex(value[i * 2:i * 2 + 2]))
def do_simulate(self, args):
args = split_args(args, 0, 1)
if(args == None):
return False
subcommandline_run(None if len(args) == 0 else args[0])