quartus verilog megawizard memory

[Travis Dunham]

can anyone provide some assistance with how to interface with a megawizard 2 port memory? I've got an assignment to build a push/pop stack using memory created from the megawizard. The stipulation is that when a value is pushed onto the stack the existing data get pushed down 1 location. I've created a stack using registers with syntax such as stack[k]<=stack[k-1] in a for loop, which works great, but I'm not sure how to create a stack using the memory from the megawizard. I'm able to instantiate the memory, but not sure how to implement the 'push' down or up functionality.

Thanks

 

[Ralf Hildebrandt]

Hi Travis!

I'm able to instantiate the memory, but not sure how to implement the 'push' down or up functionality.

It seems to me not to be a problem with the memory but with the memory
control.

What about a pointer, that always points to the next free memory word? A
push operation writes a data word to the pointer location and increments
the pointer and a pop operation decrements the pointer and reads the
data word from the new pointed location.

Ralf