From fa1e516c7082f98ba7712543b026bdf0bd94ba55 Mon Sep 17 00:00:00 2001
From: Pooja Das <das.ps13@gmail.com>
Date: Thu, 9 May 2024 05:38:12 +0100
Subject: [PATCH] new seq_lib file

---
 axi_seq_lib.sv | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 axi_seq_lib.sv

diff --git a/axi_seq_lib.sv b/axi_seq_lib.sv
new file mode 100644
index 0000000..15c043e
--- /dev/null
+++ b/axi_seq_lib.sv
@@ -0,0 +1,43 @@
+//base sequence : things common to all sequence
+class axi_base_seq extends uvm_sequence #(axi_tx);
+uvm_phase phase;
+`uvm_object_utils(axi_base_seq)
+`NEW_OBJ
+task pre_body();
+	//raise objection
+	phase = get_starting_phase();
+	if (phase !=null) begin
+	phase.raise_objection(this);
+	phase.phase_done.set_drain_time(this,100);
+	end
+endtask
+task post_body();
+	//drop objection 
+	if (phase !=null) begin
+	phase.drop_objection(this);
+	end
+endtask
+endclass
+
+//functional sequence: things specific to current sequence
+class axi_wr_rd_seq extends axi_base_seq;
+axi_tx tx;
+axi_tx txQ[$];
+`uvm_object_utils(axi_wr_rd_seq)
+`NEW_OBJ
+task body();
+//write/read to same loc
+repeat(1) begin
+	`uvm_do_with (req, {req.wr_rd==1;});
+	tx = new req; //shallow copy
+	txQ.push_back(tx);
+end
+//read_tx
+repeat(1) begin
+	tx = txQ.pop_front();
+	`uvm_do_with (req, {req.wr_rd==0; req.burst_len ==tx.burst_len; req.addr == tx.addr;});
+end
+endtask
+endclass
+
+