Field Name             Bits   Default Description
CODE_ADDR              8:0    0x0     Specifies the start address of the current code window.
                                      This address is an absolute address.
CODE_SIZE              24:16  0x0     Specifies the size of the current code window, minus
                                      one. The last instruction in the code window is given by
                                      CODE_ADDR + CODE_SIZE.
