SystemVerilog probes · 23bVivado: supported
the same package with import pkg::*; at file level, using an imported typedef
Vivado: supported. The open-source chain: all four stages pass.
| stage | today |
|---|---|
| rtl, simulation | pass |
| synth, synthesis | pass |
| netlist, the netlist | pass |
| bit, the bitstream | pass |
What does Vivado do with it?
Supported. UG901 v2023.2 Ch.10 Table 27 (p.288) and Ch.10 'Packages' (p.284) as for 23; the guide does not say where the import stands
What does the open-source chain do with it?
since #4; built by yosys-slang, yosys' own reader refused this code (the note in bit.log); rtl: PASS; bit: 'pnr ok: 1 LUT, 0 FF, no clocked paths, timing not applicable (full log: top.log)'; netlist: PASS, 'EQV PASS: 1048576 output bits compared, all equal'
What is the probe's code?
From test/sv/23b_package_file_import.
design.sv
package cs223_pkg;
typedef enum logic [1:0] {A, B, C} mode_t;
parameter int W = 4;
localparam logic [W-1:0] MAGIC = 4'hA;
function automatic logic [W-1:0] twice(input logic [W-1:0] x);
twice = x << 1;
endfunction
endpackage
import cs223_pkg::*;
module top(input logic [15:0] sw, output logic [15:0] led);
mode_t m;
assign m = mode_t'(sw[1:0]);
assign led[3:0] = twice(sw[7:4]);
assign led[7:4] = cs223_pkg::MAGIC;
assign led[9:8] = (m == B) ? 2'd3 : 2'd0;
assign led[15:10] = '0;
endmodule
tb.sv
module tb;
reg clk = 1'b0;
reg btnC = 1'b0, btnU = 1'b0, btnD = 1'b0, btnL = 1'b0, btnR = 1'b0;
reg [15:0] sw = 16'h0000;
wire [15:0] led; wire [6:0] seg; wire dp; wire [3:0] an;
task tick; begin #5 clk = 1'b1; #5 clk = 1'b0; end endtask
initial begin #200000 $display("FAIL: timeout"); $finish; end
top dut(.sw(sw), .led(led));
initial begin
sw = 16'h0031; #1
if (!(led === 16'h03A6)) begin $display("FAIL: package type/param/function (led=%h seg=%b an=%b)", led, seg, an); $finish; end
$display("PASS"); $finish;
end
endmodule
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