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STORAGE.DEF
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1985-04-25
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DEFINITION MODULE Storage; (* to be used unchanged for MacIntosh by Franz Kronseder 30.01.85 *)
(*--------------------------
This is the management module for the heap segment. The definitions are
exactly the same as on SMAKY8.
*************************************************************************)
FROM SYSTEM IMPORT ADDRESS;
EXPORT QUALIFIED
ALLOCATE, DEALLOCATE, Available, CreateHeap, DestroyHeap;
PROCEDURE ALLOCATE (VAR addr : ADDRESS; amount : CARDINAL);
(* allocates the requested amount of memory (in bytes) and returns the *)
(* starting address . HALT if the amount is not available *)
PROCEDURE DEALLOCATE (VAR addr : ADDRESS; amount : CARDINAL);
(* deallocates the given amount of memory (in bytes). HALT if the *)
(* memory hasn't been allocated by ALLOCATE *)
PROCEDURE Available (amount : CARDINAL) : BOOLEAN;
(* returns TRUE if an ALLOCATE of the specified amount (in bytes) *)
(* of memory would be possible *)
PROCEDURE CreateHeap (amount : CARDINAL);
(* has no function in the current implementation *)
PROCEDURE DestroyHeap;
(* has no function in the current implementation *)
END Storage.