Feature: Generate covergroup for accesses to registers #34
Description
Hi @amykyta3
I propose to extend this tool to generate a covergroup in uvm_reg_block that will cover accesses (read/write) to registers defined within the register block. The coverage model type would be UVM_CVR_ADDR_MAP. Here is an example:
class my_regmodel extends uvm_reg_block;
covergroup addr_cg with function sample(uvm_reg_addr_t offset, bit is_read);
offset_cp: coverpoint offset {
bins r_config = {0};
bins r_status = {4};
bins r_addr = {8};
...
}
dir_cp: coverpoint is_read {
bins read = {1};
bins write = {0};
cross offset_cp, dir_cp;
endgroup: my_regmodel
virtual function void sample(uvm_reg_addr_t offset, bit is_read, uvm_reg_map map);
if (get_coverage(UVM_CVR_ADDR_MAP)) begin
addr_cg.sample(offset, is_read);
end
endfunction: sample
Adding a switch (e.g. --coverage) to allow the covergroup to be generated would be handy.