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{
This file is part of the Free Pascal run time library.
Copyright (c) 2005 by Free Pascal development team
Low level memory functions
Heap functions unit for Nintendo DS
Copyright (c) 2006 by Francesco Lombardi
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
{*****************************************************************************
OS Memory allocation / deallocation
****************************************************************************}
function sbrk2(size: longint): pointer; cdecl; external name 'sbrk';
function SysOSAlloc(size: ptruint): pointer;
begin
result := sbrk2(size);
if result = pointer(-1) then
result := nil
end;
procedure SysOSFree(p: pointer; size: ptruint);
begin
sbrk2(-size);
end;
(*
var
heap_start: longint; external name '_end';
function SysOSAlloc(size: ptruint): pointer;
begin
result := @heap_start;
end;
{ $define HAS_SYSOSFREE}
procedure SysOSFree(p: pointer; size: ptruint);
begin
end;
*)
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