1 dcl       1 label                       based aligned,
 2           2 node_type                   bit(9) unaligned,
 3           2 source_id                   structure unaligned,
 4             3 file_number               bit(8),
 5             3 line_number               bit(14),
 6             3 statement_number          bit(5),
 7           2 location                    fixed(17) unaligned,
 8           2 allocated                   bit(1) unaligned,
 9           2 dcl_type                    bit(3) unaligned,
10           2 reserved                    bit(29) unaligned,
11           2 array                       bit(1) unaligned,
12           2 used_as_format              bit(1) unaligned,
13           2 used_in_goto                bit(1) unaligned,
14           2 symbol_table                bit(18) unaligned,
15           2 low_bound                   fixed(17) unaligned,
16           2 high_bound                  fixed(17) unaligned,
17           2 block_node                  ptr unaligned,
18           2 token                       ptr unaligned,
19           2 next                        ptr unaligned,
20           2 multi_use                   ptr unaligned,
21           2 cross_reference             ptr unaligned,
22           2 statement                   ptr unaligned;