80 lines
2.7 KiB
Systemverilog
80 lines
2.7 KiB
Systemverilog
// ----------------------------------------------------------------------
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class axi_transaction extends uvm_sequence_item;
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// Declare AXI transaction fields
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rand axi_transaction_type_t txn_type; // Transaction type (read/write)
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rand bit [`ADDR_WIDTH-1:0] addr; // Address
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rand bit [`DATA_WIDTH-1:0] data; // Data
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rand bit [`DATA_WIDTH_DIV_8-1:0] strb; // Byte enable
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rand bit [2:0] size; // Size
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rand bit [7:0] length; // Length
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`uvm_object_utils_begin(axi_transaction)
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`uvm_field_enum(axi_transaction_type_t, txn_type, UVM_DEFAULT)
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`uvm_field_int(addr, UVM_DEFAULT)
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`uvm_field_int(data, UVM_DEFAULT)
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`uvm_field_int(strb, UVM_DEFAULT)
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`uvm_field_int(size, UVM_DEFAULT)
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`uvm_field_int(length, UVM_DEFAULT)
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`uvm_object_utils_end
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// Constructor
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function new(string name = "axi_transaction");
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super.new(name);
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endfunction
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// Get transaction id - made up of sequence ID and trasacton ID
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function axi_transaction_id_t get_tid();
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axi_transaction_id_t tid;
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tid.seq_id = this.get_sequence_id();
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tid.txn_id = this.get_transaction_id();
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return tid;
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endfunction
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// Show transaction id - sequence ID:trasacton ID
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function string show_tid();
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return $sformatf("%0h:%0h", this.get_sequence_id(), this.get_transaction_id());
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endfunction
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// Show transaction tag - Transaction type:sequence ID:trasacton ID
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function string show_tag();
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return $sformatf("%s:%0h:%0h", this.txn_type.name(), this.get_sequence_id(), this.get_transaction_id());
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endfunction
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// Wait for transaction to be done
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task wait_for_done();
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uvm_event finished_event;
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finished_event = get_event_pool().get("finished");
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finished_event.wait_on();
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endtask
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// Copy method for cloning
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virtual function uvm_object clone();
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axi_transaction copy;
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copy = axi_transaction::type_id::create(get_name());
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copy.txn_type = this.txn_type;
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copy.addr = this.addr;
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copy.data = this.data;
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copy.strb = this.strb;
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copy.size = this.size;
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copy.length = this.length;
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return copy;
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endfunction
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// Comparison method for checking equality
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virtual function bit compare(uvm_object rhs);
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axi_transaction other;
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if (!$cast(other, rhs)) return 0; // Ensure type match
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return (this.txn_type == other.txn_type) &&
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(this.addr == other.addr) &&
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(this.data == other.data) &&
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(this.strb == other.strb) &&
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(this.size == other.size) &&
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(this.length == other.length);
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endfunction
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endclass : axi_transaction
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