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a72434e93a
- MSDOS heap in tinyheap.inc modified to use usual SysGetMem and similar names. - Use HAS_MEMORYMANAGER (used previously in wince source code, to specify that a memory manager is defined elsewhere than inside heap.inc include file. - Use - Remove TinyHeapMemoryManager Structure variable completely heaptrc.pp: remove unneeded macro code after name changes of tinyheap.inc msdos/system.pp now only defines HAS_MEMORYMANAGER macro win16/system.pp defines HAS_MEMORYMANAGER and FPC_NO_DEFAULT_HEAP as it still uses a different memory manager. __stkbottom variable added for win16 system.pp as it is required by i8086 specific stack check code. git-svn-id: trunk@33983 -
46 lines
1.7 KiB
PHP
46 lines
1.7 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2014 by the Free Pascal development team.
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Tiny heap manager for the i8086 near heap, embedded targets, etc.
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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{$ifdef cpui8086}
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{$if defined(FPC_X86_DATA_FAR) or defined(FPC_X86_DATA_HUGE)}
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{$define FPC_TINYHEAP_HUGE}
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{$endif}
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{$endif cpui8086}
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var
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{ these vars are TP7-compatible }
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HeapOrg: Pointer = nil; { start of heap }
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HeapEnd: Pointer = nil; { end of heap }
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FreeList: Pointer = nil; { pointer to the first free block }
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HeapPtr: Pointer = nil; { pointer to the last free block }
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HeapSize : {$ifdef FPC_TINYHEAP_HUGE}LongInt{$else}PtrUInt{$endif};
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function MemAvail: {$ifdef FPC_TINYHEAP_HUGE}LongInt{$else}PtrUInt{$endif};
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function MaxAvail: {$ifdef FPC_TINYHEAP_HUGE}LongInt{$else}PtrUInt{$endif};
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procedure Mark(var p: Pointer);
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procedure Release(var p: Pointer);
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(*
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Obsolete, renamed without the Tiny
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to have the same names as in heap.inc
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function SysTinyGetMem(Size: ptruint): pointer;
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function SysTinyFreeMem(Addr: Pointer): ptruint;
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function SysTinyFreeMemSize(Addr: Pointer; Size: Ptruint): ptruint;
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function SysTinyMemSize(p: pointer): ptruint;
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function SysTinyGetFPCHeapStatus : TFPCHeapStatus;
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function SysTinyGetHeapStatus : THeapStatus;
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function SysTinyTryResizeMem(var p: pointer; size: ptruint) : boolean;
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*)
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