with in system verilog not giving expected output

Question

Hi, This might be a very stupid question but my 'q' queue is coming out as empty with the following code. What am i missing? , also why is it that array locator methods such as max,min,unique,find give out a queue?

module tb;
int idx;
int q[$];
int d[] = '{9,1,8,7,2,4};
initial begin
q = d.find with (idx >3);
$display("%p",q);
q = d.find with (idx == 4);
$display("%p",q);
end
endmodule

Answer 1

rag123

Full Access

215 posts

February 05, 2021 at 7:12 pm

In reply to yr:

Assuming your are expecting the queue values not the index.
 
module tb;
int idx;
int q[$];
int d[] = '{9,1,8,7,2,4};
initial begin
  q = d.find(idx) with (idx >3);
$display("%p",q);
  q = d.find(idx) with (idx == 4);
$display("%p",q);
end
endmodule
 
or if you want this
 
 
module tb;
int idx;
int q[$];
int d[] = '{9,1,8,7,2,4};
initial begin
  q = d.find(item) with (item.index >3);
$display("%p",q);
  q = d.find(item) with (item.index == 4);
$display("%p",q);
end
endmodule

Answer 2

yr

Full Access

16 posts

February 05, 2021 at 9:27 pm

In reply to rag123:

got that. I thought the variable is automatically declared.

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