class axi_cov extends uvm_subscriber#(axi_tx);
axi_tx tx;
`uvm_component_utils(axi_cov)

covergroup axi_cg;
	ADDR_CP : coverpoint tx.addr {
		option.auto_bin_max = 8;
	}
	WR_RD_CP : coverpoint tx.wr_rd{
		bins WR = {1'b1};
		bins RD = {1'b0};
	}
	BURST_TYPE_CP : coverpoint tx.burst_type {
		bins FIXED = {FIXED};
		bins WRAP = {WRAP};
		bins INCR = {INCR};
	}
	RESP_CP : coverpoint tx.resp {
		bins OKAY = {OKAY};
		bins EXOKAY = {EXOKAY};
		bins SLVERR = {SLVERR};
		bins DECERR = {DECERR};
	}
	ADDR_CP_X_WR_RD_CP : cross ADDR_CP, WR_RD_CP;
	ADDR_CP_X_BURST_TYPE_CP : cross ADDR_CP, BURST_TYPE_CP;
	ADDR_CP_X_RESP_CP : cross ADDR_CP, RESP_CP;
	WR_RD_CP_X_BURST_TYPE_CP : cross WR_RD_CP, BURST_TYPE_CP;
	WR_RD_CP_X_RESP_CP : cross WR_RD_CP, RESP_CP;
	BURST_TYPE_CP_X_RESP_CP : cross BURST_TYPE_CP, RESP_CP;
endgroup

function new(string name = "", uvm_component parent=null);
	super.new(name,parent);
	axi_cg = new();
endfunction

function void write(T t);
	$cast(tx, t);
	$display("time : %0t", $time);
	tx.print();
	axi_cg.sample();
endfunction

endclass