arrays of instances not supported

[MoonbaseOtago]

Arrays of interfaces are a thing, they're useful in generate for loops - and don't seem to be accepted

interface fred;
    bit molly;
endinterface

module .....

       fred inf[0:1];

       generate
                 for (i = 0; i < 2; i=i+1) begin
                       mod1  inst1(inf[I]); // hook up instances 
                       mod2  inst2(inf[I]);
                 end
       endgenerate
 ...
 endmodule

[zachjs]

It's not clear to me from the example whether fred inf[0:1]; is intended to be an interface port for the unnamed module (seems unlikely), or if it is supposed to be an instantiation of an array of fred (but the () are missing). Both of those features are supported, so I think I'm missing something here.

[MoonbaseOtago]

here's what's actually failing I have:

PMP #(.NUM_PMP(NUM_PMP), .NPHYS(NPHYS))pmp[0:1];

it doesn't like

PMP #(.NUM_PMP(NUM_PMP), .NPHYS(NPHYS))pmp()[0:1];

either PMP is defined:

interface PMP #(parameter NUM_PMP=16, NPHYS=56); bit [NUM_PMP-1:0]valid; // sadly arrays of buses aren't well supported bit [NUM_PMP-1:0]locked; // so we need to get verbose - unused wires will be optimised bit [NPHYS-1:2]start[0:NUM_PMP-1]; // out during synthesis bit [NPHYS-1:2]aend[0:NUM_PMP-1]; bit [2:0]prot[0:NUM_PMP-1]; endinterface

[MoonbaseOtago]

BTW this (and instantiations without port lists) work happily in verilator

[MoonbaseOtago]

Ah - I have the () in the wrong place

 PMP #(.NUM_PMP(NUM_PMP), .NPHYS(NPHYS))pm()[0:1];

fails

PMP #(.NUM_PMP(NUM_PMP), .NPHYS(NPHYS))pm[0:1]();

is OK not sure that's obvious :-) and neither way is obviously correct