multiprocessor symbol logic within quartus

Hi,

If I have one master cpu and two slave cpu's and I'm trying to transmit data between the two slaves and keep track of what's going on within master cpu, how do I do that using the symbol logic in quartus. I'm a bit confused with how the logic would go between all three processors and how the pins would be connected is basically what's going on. I currently have one system(one block) with all three processors in it and each has it's own onchip memory. I'm using uarts to transmit data.

Any help is appreciated.