MGrabParticlesAndPlotA AddressList.l,NumPoints.l,Buffer.l[,Colour.b] ; Grabs points Ptr.l to buffer & plots

Does the same as MGrabParticlesAndPlot, except that the items on the list are
stored as actual memory addresses. Each address (a longword) is the actual
address in memory at which particles will be grabbed and plotted. Many animation
effects are possible due to the time consuming calculations being avoided in
working out where in memory to grab from or plot to. There is only one longword
per item, which represents the X and Y coordinates combined. Particles are
grabbed to the memory buffer pointed to by Buffer.l.