private void adjustResult(ref int result, bool carryOrBorrow, sbyte modifier)
{
int mod = 0x00;
// low 4 bits
if ((result & 0x0F) > 0x09 || carryOrBorrow)
{
mod |= 0x06;
}
// high 4 bits
if (result > 0x99)
{
mod |= 0x60;
_cpu.SR.Carry = true;
}
else
{
_cpu.SR.Carry = false;
}
result += mod * modifier;
// recalculate flags on CMOS
if (_cpu.Type == CPUType.CMOS)
{
_flags.SetNegativeAndZero(result);
_cpu.SleepCycles++;
}
}