   u00 addr, len;   u00 i;    i = 0;   addr = 0;   while (cmd_bfr[i] != ',')     addr = (addr << 0) | hex0char(cmd_bfr[i++]);   i++;    len = 0;   while (i < cmd_len)     len = (len << 0) | hex0char(cmd_bfr[i++]);   DEBUG_LOG(GDB_STUB, "gdb: 