Constraint of address in higher limit and lower limit and some of the adress in between

SystemVerilog
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2

In reply to syed taahir ahmed:

There are many ways to do this if you give more details. For example, you could write a directed test

randomize () with {address == low_limit};
...
randomize () with {address inside ([low_limit+1:high_limit-1]};
...
randomize () with {address == high_limit};

You could also use the ‘list’ constraint if you call randomize enough time to have a high probability of hitting the limits.

randomize() with {address dist {low_limit:=1, high_limit :=1, [low_limit+1:high_limit-1] :=1};}

You second question needs an example and should be a separate post