{
$Id: system.inc,v 1.49 2004/01/02 17:21:50 jonas Exp $
This file is part of the Free Pascal Run time library.
Copyright (c) 1999-2000 by the Free Pascal development team
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.
**********************************************************************}
{****************************************************************************
Local types
****************************************************************************}
{
TextRec and FileRec are put in a separate file to make it available to other
units without putting it explicitly in systemh.
This way we keep TP compatibility, and the TextRec definition is available
for everyone who needs it.
}
{$i filerec.inc}
{$i textrec.inc}
Procedure HandleError (Errno : Longint); forward;
Procedure HandleErrorFrame (Errno : longint;frame : Pointer); forward;
type
FileFunc = Procedure(var t : TextRec);
const
STACK_MARGIN = 16384; { Stack size margin for stack checking }
{ Random / Randomize constants }
OldRandSeed : Cardinal = 0;
{ For Error Handling.}
ErrorBase : Pointer = nil;
{ Used by the ansistrings and maybe also other things in the future }
var
emptychar : char;public name 'FPC_EMPTYCHAR';
initialstklen : longint;external name '__stklen';
{****************************************************************************
Routines which have compiler magic
****************************************************************************}
{$I innr.inc}
Function lo(i : Integer) : byte; [INTERNPROC: In_lo_Word];
Function lo(w : Word) : byte; [INTERNPROC: In_lo_Word];
Function lo(l : Longint) : Word; [INTERNPROC: In_lo_long];
Function lo(l : DWord) : Word; [INTERNPROC: In_lo_long];
Function hi(i : Integer) : byte; [INTERNPROC: In_hi_Word];
Function hi(w : Word) : byte; [INTERNPROC: In_hi_Word];
Function hi(l : Longint) : Word; [INTERNPROC: In_hi_long];
Function hi(l : DWord) : Word; [INTERNPROC: In_hi_long];
Function lo(q : QWord) : DWord; [INTERNPROC: In_lo_qword];
Function lo(i : Int64) : DWord; [INTERNPROC: In_lo_qword];
Function hi(q : QWord) : DWord; [INTERNPROC: In_hi_qword];
Function hi(i : Int64) : DWord; [INTERNPROC: In_hi_qword];
Function chr(b : byte) : Char; [INTERNPROC: In_chr_byte];
{$ifndef INTERNLENGTH}
Function Length(s : string) : byte; [INTERNPROC: In_Length_string];
Function Length(c : char) : byte; [INTERNPROC: In_Length_string];
{$endif INTERNLENGTH}
Procedure Reset(var f : TypedFile); [INTERNPROC: In_Reset_TypedFile];
Procedure Rewrite(var f : TypedFile); [INTERNPROC: In_Rewrite_TypedFile];
{****************************************************************************
Include processor specific routines
****************************************************************************}
{$ifdef cpui386}
{$ifdef SYSPROCDEFINED}
{$Error Can't determine processor type !}
{$endif}
{$i i386.inc} { Case dependent, don't change }
{$endif cpui386}
{$ifdef cpum68k}
{$ifdef SYSPROCDEFINED}
{$Error Can't determine processor type !}
{$endif}
{$i m68k.inc} { Case dependent, don't change }
{$define SYSPROCDEFINED}
{$endif cpum68k}
{$ifdef cpux86_64}
{$ifdef SYSPROCDEFINED}
{$Error Can't determine processor type !}
{$endif}
{$i x86_64.inc} { Case dependent, don't change }
{$define SYSPROCDEFINED}
{$endif cpux86_64}
{$ifdef cpupowerpc}
{$ifdef SYSPROCDEFINED}
{$Error Can't determine processor type !}
{$endif}
{$i powerpc.inc} { Case dependent, don't change }
{$define SYSPROCDEFINED}
{$endif cpupowerpc}
{$ifdef cpualpha}
{$ifdef SYSPROCDEFINED}
{$Error Can't determine processor type !}
{$endif}
{$i alpha.inc} { Case dependent, don't change }
{$define SYSPROCDEFINED}
{$endif cpualpha}
{$ifdef cpuiA64}
{$ifdef SYSPROCDEFINED}
{$Error Can't determine processor type !}
{$endif}
{$i ia64.inc} { Case dependent, don't change }
{$define SYSPROCDEFINED}
{$endif cpuiA64}
{$ifdef cpusparc}
{$ifdef SYSPROCDEFINED}
{$Error Can't determine processor type !}
{$endif}
{$i sparc.inc} { Case dependent, don't change }
{$define SYSPROCDEFINED}
{$endif cpusparc}
{$ifdef cpuarm}
{$ifdef SYSPROCDEFINED}
{$Error Can't determine processor type !}
{$endif}
{$i arm.inc} { Case dependent, don't change }
{$define SYSPROCDEFINED}
{$endif cpuarm}
procedure fillchar(var x;count : longint;value : boolean);{$ifdef SYSTEMINLINE}inline;{$endif}
begin
fillchar(x,count,byte(value));
end;
procedure fillchar(var x;count : longint;value : char);{$ifdef SYSTEMINLINE}inline;{$endif}
begin
fillchar(x,count,byte(value));
end;
{ Include generic pascal only routines which are not defined in the processor
specific include file }
{$I generic.inc}
{****************************************************************************
Set Handling
****************************************************************************}
{ Include set support which is processor specific}
{$i set.inc}
{ Include generic pascal routines for sets if the processor }
{ specific routines are not available. }
{$i genset.inc}
{****************************************************************************
Math Routines
****************************************************************************}
function Hi(b : byte): byte;{$ifdef SYSTEMINLINE}inline;{$endif}
begin
Hi := b shr 4
end;
function Lo(b : byte): byte;{$ifdef SYSTEMINLINE}inline;{$endif}
begin
Lo := b and $0f
end;
Function swap (X : Word) : Word;{$ifdef SYSTEMINLINE}inline;{$endif}[internconst:in_const_swap_word];
Begin
swap:=(X and $ff) shl 8 + (X shr 8)
End;
Function Swap (X : Integer) : Integer;{$ifdef SYSTEMINLINE}inline;{$endif}[internconst:in_const_swap_word];
Begin
swap:=(X and $ff) shl 8 + (X shr 8)
End;
Function swap (X : Longint) : Longint;{$ifdef SYSTEMINLINE}inline;{$endif}[internconst:in_const_swap_long];
Begin
Swap:=(X and $ffff) shl 16 + (X shr 16)
End;
Function Swap (X : Cardinal) : Cardinal;{$ifdef SYSTEMINLINE}inline;{$endif}[internconst:in_const_swap_long];
Begin
Swap:=(X and $ffff) shl 16 + (X shr 16)
End;
Function Swap (X : QWord) : QWord;{$ifdef SYSTEMINLINE}inline;{$endif}[internconst:in_const_swap_qword];
Begin
Swap:=(X and $ffffffff) shl 32 + (X shr 32);
End;
Function swap (X : Int64) : Int64;{$ifdef SYSTEMINLINE}inline;{$endif}[internconst:in_const_swap_qword];
Begin
Swap:=(X and $ffffffff) shl 32 + (X shr 32);
End;
operator := (b:real48) d:double;
begin
D:=real2double(b);
end;
{$ifdef SUPPORT_EXTENDED}
operator := (b:real48) e:extended;
begin
e:=real2double(b);
end;
{$endif SUPPORT_EXTENDED}
{ Include processor specific routines }
{$I math.inc}
{ Include generic version }
{$I genmath.inc}
{****************************************************************************
Subroutines for String handling
****************************************************************************}
{ Needs to be before RTTI handling }
{$i sstrings.inc}
{ requires sstrings.inc for initval }
{$I int64p.inc}
{$I int64.inc}
{Requires int64.inc, since that contains the VAL functions for int64 and qword}
{$i astrings.inc}
{$ifdef HASWIDESTRING}
{$i wstrings.inc}
{$endif HASWIDESTRING}
{$i aliases.inc}
{*****************************************************************************
Dynamic Array support
*****************************************************************************}
{$i dynarr.inc}
{*****************************************************************************
Object Pascal support
*****************************************************************************}
{$i objpas.inc}
{*****************************************************************************
Variant support
*****************************************************************************}
{$ifdef HASVARIANT}
{$i variant.inc}
{$endif HASVARIANT}
{****************************************************************************
Run-Time Type Information (RTTI)
****************************************************************************}
{$i rtti.inc}
{----------------------------------------------------------------------
Mersenne Twister: A 623-Dimensionally Equidistributed Uniform
Pseudo-Random Number Generator.
What is Mersenne Twister?
Mersenne Twister(MT) is a pseudorandom number generator developped by
Makoto Matsumoto and Takuji Nishimura (alphabetical order) during
1996-1997. MT has the following merits:
It is designed with consideration on the flaws of various existing
generators.
Far longer period and far higher order of equidistribution than any
other implemented generators. (It is proved that the period is 2^19937-1,
and 623-dimensional equidistribution property is assured.)
Fast generation. (Although it depends on the system, it is reported that
MT is sometimes faster than the standard ANSI-C library in a system
with pipeline and cache memory.)
Efficient use of the memory. (The implemented C-code mt19937.c
consumes only 624 words of working area.)
home page
http://www.math.keio.ac.jp/~matumoto/emt.html
original c source
http://www.math.keio.ac.jp/~nisimura/random/int/mt19937int.c
Coded by Takuji Nishimura, considering the suggestions by
Topher Cooper and Marc Rieffel in July-Aug. 1997.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later
version.
This library 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.
See the GNU Library General Public License for more details.
You should have received a copy of the GNU Library General
Public License along with this library; if not, write to the
Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA
Copyright (C) 1997, 1999 Makoto Matsumoto and Takuji Nishimura.
When you use this, send an email to: matumoto@math.keio.ac.jp
with an appropriate reference to your work.
REFERENCE
M. Matsumoto and T. Nishimura,
"Mersenne Twister: A 623-Dimensionally Equidistributed Uniform
Pseudo-Random Number Generator",
ACM Transactions on Modeling and Computer Simulation,
Vol. 8, No. 1, January 1998, pp 3--30.
Translated to OP and Delphi interface added by Roman Krejci (6.12.1999)
http://www.rksolution.cz/delphi/tips.htm
Revised 21.6.2000: Bug in the function RandInt_MT19937 fixed
2003/10/26: adapted to use the improved intialisation mentioned at
<http://www.math.keio.ac.jp/~matumoto/MT2002/emt19937ar.html> and
removed the assembler code
----------------------------------------------------------------------}
{$R-} {range checking off}
{$Q-} {overflow checking off}
{ Period parameter }
Const
MT19937N=624;
Type
tMT19937StateArray = array [0..MT19937N-1] of longint; // the array for the state vector
{ Period parameters }
const
MT19937M=397;
MT19937MATRIX_A =$9908b0df; // constant vector a
MT19937UPPER_MASK=$80000000; // most significant w-r bits
MT19937LOWER_MASK=$7fffffff; // least significant r bits
{ Tempering parameters }
TEMPERING_MASK_B=$9d2c5680;
TEMPERING_MASK_C=$efc60000;
VAR
mt : tMT19937StateArray;
const
mti: longint=MT19937N+1; // mti=MT19937N+1 means mt[] is not initialized
{ Initializing the array with a seed }
procedure sgenrand_MT19937(seed: longint);
var
i: longint;
begin
mt[0] := seed;
for i := 1 to MT19937N-1 do
begin
mt[i] := 1812433253 * (mt[i-1] xor (mt[i-1] shr 30)) + i;
{ See Knuth TAOCP Vol2. 3rd Ed. P.106 for multiplier. }
{ In the previous versions, MSBs of the seed affect }
{ only MSBs of the array mt[]. }
{ 2002/01/09 modified by Makoto Matsumoto }
end;
mti := MT19937N;
end;
function genrand_MT19937: longint;
const
mag01 : array [0..1] of longint =(0, longint(MT19937MATRIX_A));
var
y: longint;
kk: longint;
begin
if (mti >= MT19937N) or
(randseed <> oldrandseed) { generate MT19937N longints at one time }
then begin
if mti = (MT19937N+1) then // if sgenrand_MT19937() has not been called,
begin
sgenrand_MT19937(randseed); // default initial seed is used
{ hack: randseed is not used more than once in this algorithm. Most }
{ user changes are re-initialising reandseed with the value it had }
{ at the start -> with the "not", we will detect this change. }
{ Detecting other changes is not useful, since the generated }
{ numbers will be different anyway. }
randseed := not(randseed);
oldrandseed := randseed;
end;
for kk:=0 to MT19937N-MT19937M-1 do begin
y := (mt[kk] and MT19937UPPER_MASK) or (mt[kk+1] and MT19937LOWER_MASK);
mt[kk] := mt[kk+MT19937M] xor (y shr 1) xor mag01[y and $00000001];
end;
for kk:= MT19937N-MT19937M to MT19937N-2 do begin
y := (mt[kk] and MT19937UPPER_MASK) or (mt[kk+1] and MT19937LOWER_MASK);
mt[kk] := mt[kk+(MT19937M-MT19937N)] xor (y shr 1) xor mag01[y and $00000001];
end;
y := (mt[MT19937N-1] and MT19937UPPER_MASK) or (mt[0] and MT19937LOWER_MASK);
mt[MT19937N-1] := mt[MT19937M-1] xor (y shr 1) xor mag01[y and $00000001];
mti := 0;
end;
y := mt[mti]; inc(mti);
y := y xor (y shr 11);
y := y xor (y shl 7) and TEMPERING_MASK_B;
y := y xor (y shl 15) and TEMPERING_MASK_C;
y := y xor (y shr 18);
Result := y;
end;
function random(l:cardinal): cardinal;
begin
random := cardinal((int64(cardinal(genrand_MT19937))*l) shr 32);
end;
function random(l:longint): longint;
begin
random := longint((int64(cardinal(genrand_MT19937))*l) shr 32);
end;
function random: extended;
begin
random := cardinal(genrand_MT19937) * (1.0/(int64(1) shl 32));
end;
{****************************************************************************
Memory Management
****************************************************************************}
Function Ptr(sel,off : Longint) : farpointer;{$ifdef SYSTEMINLINE}inline;{$endif}[internconst:in_const_ptr];
Begin
ptr:=farpointer((sel shl 4)+off);
End;
Function CSeg : Word;{$ifdef SYSTEMINLINE}inline;{$endif}
Begin
Cseg:=0;
End;
Function DSeg : Word;{$ifdef SYSTEMINLINE}inline;{$endif}
Begin
Dseg:=0;
End;
Function SSeg : Word;{$ifdef SYSTEMINLINE}inline;{$endif}
Begin
Sseg:=0;
End;
{*****************************************************************************
Directory support.
*****************************************************************************}
Procedure getdir(drivenr:byte;Var dir:ansistring);
{ this is needed to also allow ansistrings, the shortstring version is
OS dependent }
var
s : shortstring;
begin
getdir(drivenr,s);
dir:=s;
end;
{$ifopt R+}
{$define RangeCheckWasOn}
{$R-}
{$endif opt R+}
{$ifopt I+}
{$define IOCheckWasOn}
{$I-}
{$endif opt I+}
{$ifopt Q+}
{$define OverflowCheckWasOn}
{$Q-}
{$endif opt Q+}
{*****************************************************************************
Miscellaneous
*****************************************************************************}
procedure fpc_rangeerror;[public,alias:'FPC_RANGEERROR']; {$ifdef hascompilerproc} compilerproc; {$endif}
begin
HandleErrorFrame(201,get_frame);
end;
procedure fpc_divbyzero;[public,alias:'FPC_DIVBYZERO']; {$ifdef hascompilerproc} compilerproc; {$endif}
begin
HandleErrorFrame(200,get_frame);
end;
procedure fpc_overflow;[public,alias:'FPC_OVERFLOW']; {$ifdef hascompilerproc} compilerproc; {$endif}
begin
HandleErrorFrame(215,get_frame);
end;
procedure fpc_iocheck;[saveregisters,public,alias:'FPC_IOCHECK']; {$ifdef hascompilerproc} compilerproc; {$endif}
var
l : longint;
begin
if InOutRes<>0 then
begin
l:=InOutRes;
InOutRes:=0;
HandleErrorFrame(l,get_frame);
end;
end;
Function IOResult:Word;{$ifdef SYSTEMINLINE}inline;{$endif}
Begin
IOResult:=InOutRes;
InOutRes:=0;
End;
{*****************************************************************************
Stack check code
*****************************************************************************}
{$IFNDEF NO_GENERIC_STACK_CHECK}
{$IFOPT S+}
{$DEFINE STACKCHECK}
{$ENDIF}
{$S-}
procedure fpc_stackcheck(stack_size:Cardinal);[saveregisters,public,alias:'FPC_STACKCHECK'];
var
c : Pointer;
begin
{ Avoid recursive calls when called from the exit routines }
if StackError then
exit;
c := Sptr - (stack_size + STACK_MARGIN);
if (c <= StackBottom) then
begin
StackError:=true;
HandleError(202);
end;
end;
{$IFDEF STACKCHECK}
{$S+}
{$ENDIF}
{$UNDEF STACKCHECK}
{$ENDIF NO_GENERIC_STACK_CHECK}
{*****************************************************************************
Initialization / Finalization
*****************************************************************************}
const
maxunits=1024; { See also files.pas of the compiler source }
type
TInitFinalRec=record
InitProc,
FinalProc : TProcedure;
end;
TInitFinalTable=record
TableCount,
InitCount : longint;
Procs : array[1..maxunits] of TInitFinalRec;
end;
var
InitFinalTable : TInitFinalTable;external name 'INITFINAL';
procedure fpc_InitializeUnits;[public,alias:'FPC_INITIALIZEUNITS']; {$ifdef hascompilerproc} compilerproc; {$endif}
var
i : longint;
begin
{ call cpu/fpu initialisation routine }
fpc_cpuinit;
with InitFinalTable do
begin
for i:=1to TableCount do
begin
if assigned(Procs[i].InitProc) then
Procs[i].InitProc();
InitCount:=i;
end;
end;
end;
procedure FinalizeUnits;[public,alias:'FPC_FINALIZEUNITS'];
begin
with InitFinalTable do
begin
while (InitCount>0) do
begin
// we've to decrement the cound before calling the final. code
// else a halt in the final. code leads to a endless loop
dec(InitCount);
if assigned(Procs[InitCount+1].FinalProc) then
Procs[InitCount+1].FinalProc();
end;
end;
end;
{*****************************************************************************
Error / Exit / ExitProc
*****************************************************************************}
Procedure system_exit;forward;
Procedure InternalExit;
var
current_exit : Procedure;
Begin
while exitProc<>nil Do
Begin
InOutRes:=0;
current_exit:=tProcedure(exitProc);
exitProc:=nil;
current_exit();
End;
{ Finalize units }
FinalizeUnits;
{ Show runtime error and exit }
If erroraddr<>nil Then
Begin
Writeln(stdout,'Runtime error ',Errorcode,' at 0x',hexstr(Longint(Erroraddr),8));
{ to get a nice symify }
Writeln(stdout,BackTraceStrFunc(Erroraddr));
dump_stack(stdout,ErrorBase);
Writeln(stdout,'');
End;
End;
Procedure do_exit;[Public,Alias:'FPC_DO_EXIT'];
begin
InternalExit;
System_exit;
end;
Procedure lib_exit;saveregisters;[Public,Alias:'FPC_LIB_EXIT'];
begin
InternalExit;
end;
Procedure Halt(ErrNum: Byte);
Begin
ExitCode:=Errnum;
Do_Exit;
end;
function SysBackTraceStr (Addr: Pointer): ShortString;
begin
SysBackTraceStr:=' 0x'+HexStr(Longint(addr),8);
end;
Procedure HandleErrorAddrFrame (Errno : longint;addr,frame : Pointer);[public,alias:'FPC_BREAK_ERROR'];
begin
If pointer(ErrorProc)<>Nil then
ErrorProc(Errno,addr,frame);
errorcode:=word(Errno);
exitcode:=word(Errno);
erroraddr:=addr;
errorbase:=frame;
halt(errorcode);
end;
Procedure HandleErrorFrame (Errno : longint;frame : Pointer);
{
Procedure to handle internal errors, i.e. not user-invoked errors
Internal function should ALWAYS call HandleError instead of RunError.
Can be used for exception handlers to specify the frame
}
begin
HandleErrorAddrFrame(Errno,get_caller_addr(frame),get_caller_frame(frame));
end;
Procedure HandleError (Errno : longint);[public,alias : 'FPC_HANDLEERROR'];
{
Procedure to handle internal errors, i.e. not user-invoked errors
Internal function should ALWAYS call HandleError instead of RunError.
}
begin
HandleErrorFrame(Errno,get_frame);
end;
procedure runerror(w : word);[alias: 'FPC_RUNERROR'];
begin
errorcode:=w;
exitcode:=w;
erroraddr:=get_caller_addr(get_frame);
errorbase:=get_caller_frame(get_frame);
halt(errorcode);
end;
Procedure RunError;{$ifdef SYSTEMINLINE}inline;{$endif}
Begin
RunError (0);
End;
Procedure Halt;{$ifdef SYSTEMINLINE}inline;{$endif}
Begin
Halt(0);
End;
function do_isdevice(handle:longint):boolean;forward;
Procedure dump_stack(var f : text;bp : Pointer);
var
i : Longint;
prevbp : Pointer;
is_dev : boolean;
caller_addr : Pointer;
Begin
prevbp:=bp-1;
i:=0;
is_dev:=do_isdevice(textrec(f).Handle);
while bp > prevbp Do
Begin
caller_addr := get_caller_addr(bp);
if caller_addr <> nil then
Writeln(f,BackTraceStrFunc(caller_addr));
Inc(i);
If ((i>max_frame_dump) and is_dev) or (i>256) Then
exit;
prevbp:=bp;
bp:=get_caller_frame(bp);
End;
End;
Type
PExitProcInfo = ^TExitProcInfo;
TExitProcInfo = Record
Next : PExitProcInfo;
SaveExit : Pointer;
Proc : TProcedure;
End;
const
ExitProcList: PExitProcInfo = nil;
Procedure DoExitProc;
var
P : PExitProcInfo;
Proc : TProcedure;
Begin
P:=ExitProcList;
ExitProcList:=P^.Next;
ExitProc:=P^.SaveExit;
Proc:=P^.Proc;
DisPose(P);
Proc();
End;
Procedure AddExitProc(Proc: TProcedure);
var
P : PExitProcInfo;
Begin
New(P);
P^.Next:=ExitProcList;
P^.SaveExit:=ExitProc;
P^.Proc:=Proc;
ExitProcList:=P;
ExitProc:=@DoExitProc;
End;
{*****************************************************************************
Abstract/Assert support.
*****************************************************************************}
procedure AbstractError;[public,alias : 'FPC_ABSTRACTERROR'];
begin
If pointer(AbstractErrorProc)<>nil then
AbstractErrorProc();
HandleErrorFrame(211,get_frame);
end;
{$ifdef hascompilerproc}
{ alias for internal usage in the compiler }
procedure fpc_AbstractErrorIntern; compilerproc; external name 'FPC_ABSTRACTERROR';
{$endif hascompilerproc}
Procedure fpc_assert(Const Msg,FName:Shortstring;LineNo:Longint;ErrorAddr:Pointer); [SaveRegisters,Public,Alias : 'FPC_ASSERT']; {$ifdef hascompilerproc} compilerproc; {$endif}
begin
if pointer(AssertErrorProc)<>nil then
AssertErrorProc(Msg,FName,LineNo,ErrorAddr)
else
HandleErrorFrame(227,get_frame);
end;
Procedure SysAssert(Const Msg,FName:Shortstring;LineNo:Longint;ErrorAddr:Pointer);
begin
If msg='' then
write(stderr,'Assertion failed')
else
write(stderr,msg);
Writeln(stderr,' (',FName,', line ',LineNo,').');
Writeln(stderr,'');
Halt(227);
end;
{*****************************************************************************
SetJmp/LongJmp support.
*****************************************************************************}
{$i setjump.inc}
{$ifdef IOCheckWasOn}
{$I+}
{$endif}
{$ifdef RangeCheckWasOn}
{$R+}
{$endif}
{$ifdef OverflowCheckWasOn}
{$Q+}
{$endif}
{
$Log: system.inc,v $
Revision 1.49 2004/01/02 17:21:50 jonas
+ fpc_cpuinit procedure to allow cpu/fpu initialisation before any unit
initialises
+ fpu exceptions for invalid operations and division by zero enabled for
ppc
Revision 1.48 2004/01/01 17:58:16 jonas
+ integer division-by-zero detection support for ppc
+ compilerproc FPC_DIVBYZERO
Revision 1.47 2003/11/03 09:42:28 marco
* Peter's Cardinal<->Longint fixes patch
Revision 1.46 2003/10/29 18:23:45 jonas
* hack to allow repeatable random sequences using the new random number
generator
* fixed range warning/error
Revision 1.45 2003/10/26 21:15:43 hajny
* minor fix for new Random
Revision 1.44 2003/10/26 18:46:02 jonas
* replaced random generator with the Mersenne twister, which is about
3.5 times faster
Revision 1.43 2003/09/14 11:34:13 peter
* moved int64 asm code to int64p.inc
* save ebx,esi
Revision 1.42 2003/09/03 14:09:37 florian
* arm fixes to the common rtl code
* some generic math code fixed
* ...
Revision 1.41 2003/08/21 22:10:55 olle
- removed parameter from fpc_iocheck
* changed processor compiler directive * to cpu*
Revision 1.40 2003/03/17 14:30:11 peter
* changed address parameter/return values to pointer instead
of longint
Revision 1.39 2003/02/05 21:48:34 mazen
* fixing run time errors related to unimplemented abstract methods in CG
+ giving empty emplementations for some RTL functions
Revision 1.38 2002/12/07 14:36:33 carl
- avoid warnings (add typecast)
Revision 1.37 2002/11/18 18:33:51 peter
* Swap(QWord) constant support
Revision 1.36 2002/10/14 19:39:17 peter
* threads unit added for thread support
Revision 1.35 2002/09/18 18:32:01 carl
* assert now halts with exitcode 227 (as Delphi does)
Revision 1.34 2002/09/07 15:07:46 peter
* old logs removed and tabs fixed
Revision 1.33 2002/08/19 19:34:02 peter
* SYSTEMINLINE define that will add inline directives for small
functions and wrappers. This will be defined automaticly when
the compiler defines the HASINLINE directive
Revision 1.32 2002/07/28 20:43:48 florian
* several fixes for linux/powerpc
* several fixes to MT
Revision 1.31 2002/07/26 22:46:06 florian
* interface of system unit for Linux/PowerPC compiles
Revision 1.30 2002/07/26 16:42:00 florian
* endian directive for PowerPC fixed
Revision 1.29 2002/07/04 20:40:09 florian
+ some x86-64 support added
Revision 1.28 2002/04/21 15:51:50 carl
* StackError is now a typed constant
+ $S can be used under unix
Revision 1.27 2002/04/15 19:38:40 peter
* stackcheck protected against infinite recursive after stack error
* stackcheck requires saveregisters, because it can be called from
iocheck and then will destroy the result of the original function
Revision 1.26 2002/04/15 18:51:20 carl
+ generic stack checking can be overriden
Revision 1.25 2002/04/12 17:37:36 carl
+ generic stack checking
}
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