The debugger (db) has been slightly modified in order to ease debugging under the LSI-UNIX system. The default relocation address of all programs is assumed to be 40000(8). If the flag '-a' is given when the debugger is invoked, the relocation address is assumed to be zero. This is useful for debugging the system. The default address can be changed by editing 'db1.s' and setting the variable 'uorg' equal to the new relocation address. Then reassemble the source. If none of the changes are desired, simply set the variable 'lsx' in db1.s to equal zero and reassemble.