def disasm_add(instruction, pos, line):
ins = 'add ' + reverse_register.get(int(instruction[16:21], 2), 'error') + ', ' + \
reverse_register.get(int(instruction[6:11], 2), 'error') + ', ' + \
reverse_register.get(int(instruction[11:16], 2), 'error')
if re.search('error', ins):
raise Exception('Line %d : No such register.' % line)
return ins, -1
def disasm_blez(instruction, pos, line):
if pos.get(line + int(int_comp(instruction[16:32]), 10), '') == '':
ins = 'blez ' + reverse_register.get(int(instruction[6:11], 2), 'error') \
+ ', ' + 'label_%d' % len(pos)
else:
ins = 'blez ' + reverse_register.get(int(instruction[6:11], 2), 'error') \
+ ', ' + 'label_%d' % pos[line + int(int_comp(instruction[16:32]), 10)]
if re.search('error', ins):
raise Exception('Line %d : No such register.' % line)
return ins, line + int(int_comp(instruction[16:32]), 10)
def disasm_mthi(instruction, pos, line):
ins = 'mthi ' + reverse_register.get(int(instruction[6:11], 2), 'error')
if re.search('error', ins):
raise Exception('Line %d : No such register.' % line)
return ins, -1
def disasm_sll(instruction, pos, line):
ins = 'sll ' + reverse_register.get(int(instruction[16:21], 2), 'error') + ', ' \
+ reverse_register.get(int(instruction[11:16], 2), 'error') + ', ' + str(int(instruction[21:26],2))
if re.search('error', ins):
raise Exception('Line %d : No such register.' % line)
return ins, -1
def disasm_lb(instruction, pos, line):
ins = 'lb ' + reverse_register.get(int(instruction[11:16], 2), 'error') + ', '\
+ int_comp(instruction[16:32])+'('+ reverse_register.get(int(instruction[6:11], 2), 'error') + ')'
if re.search('error', ins):
raise Exception('Line %d : No such register.' % line)
return ins, -1
def disasm_lui(instruction, pos, line):
ins = 'lui ' + reverse_register.get(int(instruction[11:16], 2), 'error') \
+ ', ' + int_comp(instruction[16:32])
if re.search('error', ins):
raise Exception('Line %d : No such register.' % line)
return ins, -1
