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interface and instance array support

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- support for interface instance arrays
- support for interface-using module instance arrays
- support for modport array bindings
- fix modport bindings shadowed in nested instances
This commit is contained in:
Zachary Snow
2020-12-06 15:41:33 -07:00
parent 8eac9b0149
commit 2b377cef04
10 changed files with 731 additions and 38 deletions
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test/basic/interface_array_slice.v
+27
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@@ -0,0 +1,27 @@
module Module(xs);
parameter LEFT = 0;
parameter RIGHT = 0;
input wire [LEFT:RIGHT] xs;
endmodule
module Instance();
parameter LEFT = 0;
parameter RIGHT = 0;
parameter INNER_LEFT = 0;
parameter INNER_RIGHT = 0;
parameter INNER_OFFSET = 0;
reg [LEFT:RIGHT] xs;
localparam LO = INNER_LEFT >= INNER_RIGHT ? INNER_RIGHT : INNER_LEFT;
localparam HI = INNER_LEFT >= INNER_RIGHT ? INNER_LEFT : INNER_RIGHT;
localparam LEN = HI - LO + 1;
Module #(INNER_LEFT + INNER_OFFSET, INNER_RIGHT + INNER_OFFSET)
l(xs[INNER_LEFT:INNER_RIGHT]);
Module #(INNER_LEFT + INNER_OFFSET, INNER_RIGHT + INNER_OFFSET)
m(xs[LO+:LEN]);
Module #(INNER_LEFT + INNER_OFFSET, INNER_RIGHT + INNER_OFFSET)
n(xs[HI-:LEN]);
endmodule