def add16(cpu, opcode, logger):
regInd = (opcode & 0x30) >> 4
value = cpu.Reg16(regInd)
oldHL = cpu.HL
cpu.HL = cpu.HL + value
cpu.NFlag = Bits.reset()
cpu.CFlag = Bits.carryFlag16(oldHL, cpu.HL)
cpu.HFlag = Bits.carryFlag16(oldHL, cpu.HL, bits=11)
cpu.m_cycles, cpu.t_states = 3, 11
logger.info("ADD HL, {}".format(IndexToReg.translate16Bit(regInd)))
def add16(cpu, opcode, logger):
logger.info("ADD HL, rr")
regInd = (opcode & 0x30) >> 4
value = 0
if regInd == 0:
value = cpu.BC
elif regInd == 1:
value = cpu.DE
elif regInd == 2:
value = cpu.HL
elif regInd == 3:
value = cpu.SP
oldHL = cpu.HL
cpu.HL = cpu.HL + value
cpu.flags[NF] = False
cpu.flags[CF] = Bits.carryFlag16(oldHL, cpu.HL)
cpu.flags[HF] = Bits.carryFlag16(oldHL, cpu.HL, bits=11)