private void processOrder5()
{
BCD10 a = new BCD10();
if (accA == 0)
{
a.set(controlBoxScript.getKeyboard());
}
else
{
a.set(accumulators[accA]);
}
if (accB > 0)
{
effectiveOperand.add(accumulators[accB]);
}
switch (siriusOpcodeLow)
{
case 0: // DUMMY
break;
case 1:
if (a.msd() != 0)
{
setPC(effectiveOperand);
}
break;
case 2:
if (!a.isZero())
{
setPC(effectiveOperand);
}
break;
case 3:
if (flagOVR)
{
setPC(effectiveOperand);
}
flagOVR = false;
break;
case 4:
if (a.isNegative())
{
setPC(effectiveOperand);
}
break;
case 5:
setPC(effectiveOperand);
break;
case 6:
if (a.msd() == 0)
{
setPC(effectiveOperand);
}
break;
case 7:
if (a.isZero())
{
setPC(effectiveOperand);
}
break;
case 8:
if (!flagOVR)
{
setPC(effectiveOperand);
}
flagOVR = false;
break;
case 9:
if (!a.isNegative())
{
setPC(effectiveOperand);
}
break;
}
}
private void processOrder3()
{
BCD10 b = new BCD10();
bool wasNegative = accumulators[accA].isNegative();
bool shiftOVR;
byte msdB;
shiftOVR = (accumulators[accA].digits[9] != 0 && accumulators[accA].digits[9] != 9);
if (siriusOpcodeLow < 5)
{
if (accB > 0)
{
effectiveOperand.add(accumulators[accB]);
}
b.setHex64(getMainStore(effectiveOperand.toUInt64()));
if (accA == 0)
{
accumulators[0].set(controlBoxScript.getKeyboard());
}
flagOVR |= shiftOVR | (wasNegative != accumulators[accA].isNegative());
}
else
{
if (accB == 0)
{
b.set(controlBoxScript.getKeyboard());
}
else
{
b.set(accumulators[accB]);
}
}
msdB = b.msd(); // in case accA = accB ...
for (int i = 9; i > 0; i--)
{
accumulators[accA].digits[i] = accumulators[accA].digits[i - 1];
}
accumulators[accA].digits[0] = 0;
switch (siriusOpcodeLow)
{
case 0:
accumulators[accA].add(b);
flagOVR |= BCD10.flagOVR;
break;
case 1:
accumulators[accA].sub(b);
flagOVR |= BCD10.flagOVR;
break;
case 2:
accumulators[accA].negSub(b);
flagOVR |= BCD10.flagOVR;
break;
case 3:
accumulators[accA].negAdd(b);
flagOVR |= BCD10.flagOVR;
break;
case 4:
accumulators[accA].digits[0] = msdB;
break;
case 5:
accumulators[accA].add(b);
break;
case 6:
accumulators[accA].sub(b);
break;
case 7:
accumulators[accA].negSub(b);
break;
case 8:
accumulators[accA].negAdd(b);
break;
case 9:
accumulators[accA].digits[0] = msdB;
break;
}
}