public override void Execute(ushort aRange, ushort aArg1, ushort aArg2, ushort aArg3, ushort aArg4, ushort aArg5, ushort aArg6, ushort aArg7, ushort aArgCount)
{
if ((short)aRange <= 0)
{
ZRandom.Seed(-(short)aRange);
Store(0);
}
else
{
ushort result;
if (ZRandom.interval != 0)
{
result = (ushort)ZRandom.counter++;
if (ZRandom.counter == ZRandom.interval)
{
ZRandom.counter = 0;
}
}
else
{
ZRandom.a = 0x015a4e35 * ZRandom.a + 1;
result = (ushort)((ZRandom.a >> 16) & 0x7fff);
}
Store((ushort)(result % aRange + 1));
}
}
public void Initialize(ushort aStartPC)
{
ZRandom.Seed(0);
Stack = new ZStack(this);
StartPC = aStartPC;
PC = StartPC;
//SetByte(HeaderOffset.CONFIG, ZMachine.Story.Header.config);
//SetWord(HeaderOffset.FLAGS, ZMachine.Story.Header.flags);
//if (ZMachine.Story.Header.Version >= FileVersion.V4)
//{
// SetByte(HeaderOffset.INTERPRETER_NUMBER, ZMachine.Story.Header.interpreter_number);
// SetByte(HeaderOffset.INTERPRETER_VERSION, ZMachine.Story.Header.interpreter_version);
// SetByte(HeaderOffset.SCREEN_ROWS, ZMachine.Story.Header.screen_rows);
// SetByte(HeaderOffset.SCREEN_COLS, ZMachine.Story.Header.screen_cols);
//}
//ushort screenCols = ZMachine.Story.Header.screen_cols;
//ushort screenRows = ZMachine.Story.Header.screen_rows;
//if (ZMachine.Story.Header.Version >= FileVersion.V5)
//{
// SetWord(HeaderOffset.SCREEN_WIDTH, screenCols);
// SetWord(HeaderOffset.SCREEN_HEIGHT, screenRows);
// SetByte(HeaderOffset.FONT_HEIGHT, 1);
// SetByte(HeaderOffset.FONT_WIDTH, 1);
// SetByte(HeaderOffset.DEFAULT_BACKGROUND, ZMachine.Story.Header.default_background);
// SetByte(HeaderOffset.DEFAULT_FOREGROUND, ZMachine.Story.Header.default_foreground);
//}
//if ((ZMachine.Story.Header.Version >= FileVersion.V3) && (ZMachine.Story.Header.user_name[0] != 0))
//{
// for (int i = 0; i < 8; i++)
// {
// SetByte((HeaderOffset.USER_NAME + i), ZMachine.Story.Header.user_name[i]);
// }
//}
//SetByte(HeaderOffset.STANDARD_HIGH, ZMachine.Story.Header.standard_high);
//SetByte(HeaderOffset.STANDARD_LOW, ZMachine.Story.Header.standard_low);
}