def ADD(register):
if not validate.validate_reg(register):
print "Invalid Register: %s" % register
exit(1)
a = int(registers.reg["A"], 16)
if register == "M":
b = extras.getPair('H', 'L')
if extras.chkMemory(b):
b = int(registers.reg[register], 16)
else:
print " Invalid Memory:", b
exit(1)
else:
b = int(registers.reg[register], 16)
t = a + b
a = int(extras.getLowerNibble(format(a, '0x')), 2)
b = int(extras.getLowerNibble(format(b, '0x')), 2)
if not validate.validate_data(t):
print "\n////-----OverFlow Detected----////\n"
t = format(t, "02x")
t = set_flags.setCarry(t)
set_flags.setFlags(a, b, t, isAbnormalFlow=True)
tmp = {"A": t[1:]}
else:
t = format(t, "02x")
tmp = {"A": t}
set_flags.setFlags(a, b, t)
registers.reg.update(tmp)
def SUI(data):
a = int(registers.reg['A'], 16)
b = int(data, 16)
res = a - b
res = format(res, '02x')
if not validate.validate_data(int(res, 16)):
res = set_flags.setCarry(res)
set_flags.setFlags(a, b, res, isAbnormalFlow=True)
else:
set_flags.setFlags(a, b, res)
registers.reg['A'] = res
def ADI(data):
a = int(registers.reg['A'], 16)
b = int(data, 16)
res = format((a + b), '02x')
a = int(extras.getLowerNibble(format(a, '0x')), 2)
b = int(extras.getLowerNibble(format(b, '0x')), 2)
if validate.validate_data(int(res, 16)):
registers.reg['A'] = res
set_flags.setFlags(a, b, res)
else:
print "\n Overflow Detected ADI", data
print "Register Data[A]:", registers.reg['A']
exit(1)