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99 lines
2.4 KiB
ObjectPascal
99 lines
2.4 KiB
ObjectPascal
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2007 by the FPC development time
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Implements overloaded operators and misc. functions to
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provide a floatx80 type
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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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{$inline on}
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{$IFNDEF FPC_DOTTEDUNITS}
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unit ufloatx80;
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{$ENDIF FPC_DOTTEDUNITS}
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interface
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{$IFDEF FPC_DOTTEDUNITS}
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uses
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System.SoftFpuX80;
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{$ELSE FPC_DOTTEDUNITS}
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uses
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sfpux80;
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{$ENDIF FPC_DOTTEDUNITS}
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type
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floatx80 = {$IFDEF FPC_DOTTEDUNITS}System.SoftFpuX80{$ELSE}sfpux80{$ENDIF}.floatx80;
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operator+ (const f1,f2 : floatx80) result : floatx80;inline;
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operator* (const f1,f2 : floatx80) result : floatx80;inline;
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operator- (const f1,f2 : floatx80) result : floatx80;inline;
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operator/ (const f1,f2 : floatx80) result : floatx80;inline;
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operator :=(const source : double) dest : floatx80;inline;
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operator :=(const source : floatx80) dest : double;inline;
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procedure DumpFloatx80(const f : floatx80);
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implementation
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procedure DumpFloatx80(const f : floatx80);
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type
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ta = packed array[0..SizeOf(floatx80)-1] of byte;
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var
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i : longint;
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begin
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for i:=SizeOf(floatx80)-1 downto 0 do
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begin
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write(hexstr(ta(f)[i],2));
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if i<15 then
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write(' ');
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end;
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end;
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operator+ (const f1,f2 : floatx80) result : floatx80;inline;
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begin
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result:=floatx80_add(f1,f2);
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end;
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operator* (const f1,f2 : floatx80) result : floatx80;inline;
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begin
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result:=floatx80_mul(f1,f2);
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end;
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operator- (const f1,f2 : floatx80) result : floatx80;inline;
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begin
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result:=floatx80_sub(f1,f2);
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end;
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operator/ (const f1,f2 : floatx80) result : floatx80;inline;
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begin
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result:=floatx80_div(f1,f2);
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end;
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operator :=(const source : double) dest : floatx80;inline;
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begin
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dest:=float64_to_floatx80(float64(source));
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end;
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operator :=(const source : floatx80) dest : double;inline;
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begin
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dest:=double(floatx80_to_float64(source));
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end;
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end.
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