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Interface prototype #963

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dalance opened this issue Sep 13, 2024 · 1 comment
Open

Interface prototype #963

dalance opened this issue Sep 13, 2024 · 1 comment
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lang Language design

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@dalance
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dalance commented Sep 13, 2024

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@dalance dalance added the lang Language design label Sep 13, 2024
@dalance
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dalance commented Sep 20, 2024

Interface prototype may be the same as concrete interface in almost cases.

proto interface ProtoA #(
    param X: u32,
) {
    var a: logic;

    modport A {
        a: input,
    }
}

interface InterfaceA for ProtoA #(
    param X: u32,
) {
    var a: logic;

    modport A {
        a: input,
    }
}

So generic bound by interface may be sufficient instead of adding interface prototype.

block rggen_connect_bit_field_if::<RIF: InterfaceA, FIF: InterfaceA, LSB: const, WIDTH: const> {
    assign  FIF.valid                 = RIF.valid;
    assign  FIF.read_mask             = RIF.read_mask[LSB+:WIDTH];
    assign  FIF.write_mask            = RIF.write_mask[LSB+:WIDTH];
    assign  FIF.write_data            = RIF.write_data[LSB+:WIDTH];
    assign  RIF.read_data[LSB+:WIDTH] = FIF.read_data;
    assign  RIF.value[LSB+:WIDTH]     = FIF.value;
}

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