protected void peekAhead()
{
state.nextIr = Bus.read(state.PC, true);
var nextInstSize = state.getInstructionSize(state.nextIr);
for (var i = 1; i < nextInstSize; i++)
{
var nextRead = (state.PC + i) & 0xffff;
state.nextArgs[i - 1] = Bus.read(nextRead, true);
}
}