| # Memory Backdoor Utility Class |
| |
| The `mem_bkdr_util` class provides a way to manipulate the memory array directly via backdoor. |
| It includes a set of functions to backdoor read or write any address location within the memory. |
| The class instance is created in the testbench module and passed to the UVM environment via `uvm_config_db`. |
| |
| ### Methods |
| This interface supports basic backdoor methods to access memory. Useful methods are: |
| * `is_addr_valid`: Check if input address is valid |
| The input address is assumed to be the byte addressable address into memory |
| starting at 0. It is user's responsibility to mask the upper bits. |
| * `read8`, `read16`, `read32`, `read64`: Functions to read one byte, two bytes, four bytes, and eight bytes respectively |
| at specified input address |
| * `write8`, `write16`, `write32`, `write64`: Functions to write one byte, two bytes, four bytes, and eight bytes respectively |
| with input data at specified input address |
| * `load_mem_from_file`: Load memory from a file specified by input string |
| * `print_mem`: Print the content of the memory |
| * `clear_mem`: Clear the memory to all 0s |
| * `set_mem`: Set the memory to all 1s |
| * `randomize_mem`: Randomize contents of the memory |
