1 files changed, 30 insertions, 0 deletions

diff --git a/v4.0/src/INC/ARENA.INC b/v4.0/src/INC/ARENA.INC
new file mode 100644
index 0000000..5177552
--- /dev/null
+++ b/v4.0/src/INC/ARENA.INC
@@ -0,0 +1,30 @@
+;       SCCSID = @(#)arena.asm  1.1 85/04/09
+BREAK <Memory arena structure>
+
+;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
+;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
+;                                                                          ;
+;
+; arena item
+;
+arena   STRUC
+arena_signature     DB  ?               ; 4D for valid item, 5A for last item
+arena_owner         DW  ?               ; owner of arena item
+arena_size          DW  ?               ; size in paragraphs of item
+arena_reserved      DB  3 DUP(?)        ; reserved
+arena_name          DB  8 DUP(?)        ; owner file name
+arena   ENDS
+
+;
+; CAUTION: The routines in ALLOC.ASM rely on the fact that arena_signature
+; and arena_owner_system are all equal to zero and are contained in DI.  Change
+; them and change ALLOC.ASM.
+
+arena_owner_system  EQU 0               ; free block indication
+
+arena_signature_normal  EQU 4Dh         ; valid signature, not end of arena
+arena_signature_end     EQU 5Ah         ; valid signature, last block in arena
+;                                                                          ;
+;            C  A  V  E  A  T     P  R  O  G  R  A  M  M  E  R             ;
+;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
+
\ No newline at end of file