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98 lines
3.1 KiB
PHP
98 lines
3.1 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2000 by Florian Klaempfl,
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member of the Free Pascal development team
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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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{ i386 FPU Controlword }
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{$if defined(cpui386) or defined(cpux86_64)}
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const
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Default8087CW : word = $1332;
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procedure Set8087CW(cw:word);
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function Get8087CW:word;
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procedure SetSSECSR(w : dword);
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function GetSSECSR : dword;
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{$endif}
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const
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{*
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-------------------------------------------------------------------------------
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Software IEC/IEEE floating-point exception flags.
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-------------------------------------------------------------------------------
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*}
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float_flag_invalid = 1;
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float_flag_denormal = 2;
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float_flag_divbyzero = 4;
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float_flag_overflow = 8;
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float_flag_underflow = 16;
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float_flag_inexact = 32;
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{*
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-------------------------------------------------------------------------------
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Software IEC/IEEE floating-point rounding mode.
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-------------------------------------------------------------------------------
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*}
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float_round_nearest_even = 0;
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float_round_down = 1;
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float_round_up = 2;
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float_round_to_zero = 3;
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threadvar
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softfloat_exception_mask : Byte;
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softfloat_exception_flags : Byte;
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softfloat_rounding_mode : Byte;
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procedure float_raise(i: shortint);
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{$ifdef cpui386}
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{$define INTERNMATH}
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{$endif}
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{$ifndef INTERNMATH}
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{$ifdef FPC_USE_LIBC}
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{$ifdef SYSTEMINLINE}
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{$define MATHINLINE}
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{$endif}
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{$endif}
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{$endif}
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function pi : ValReal;[internproc:fpc_in_pi_real];
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function abs(d : ValReal) : ValReal;[internproc:fpc_in_abs_real];
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function sqr(d : ValReal) : ValReal;[internproc:fpc_in_sqr_real];
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function sqrt(d : ValReal) : ValReal;[internproc:fpc_in_sqrt_real];
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function arctan(d : ValReal) : ValReal;[internproc:fpc_in_arctan_real];
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function ln(d : ValReal) : ValReal;[internproc:fpc_in_ln_real];
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function sin(d : ValReal) : ValReal;[internproc:fpc_in_sin_real];
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function cos(d : ValReal) : ValReal;[internproc:fpc_in_cos_real];
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function exp(d : ValReal) : ValReal;[internproc:fpc_in_exp_real];
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function round(d : ValReal) : int64;[internproc:fpc_in_round_real];
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function frac(d : ValReal) : ValReal;[internproc:fpc_in_frac_real];
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function int(d : ValReal) : ValReal;[internproc:fpc_in_int_real];
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function trunc(d : ValReal) : int64;[internproc:fpc_in_trunc_real];
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{$ifdef SUPPORT_EXTENDED}
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function FPower10(val: Extended; Power: Longint): Extended;
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{$endif SUPPORT_EXTENDED}
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type
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real48 = array[0..5] of byte;
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{$ifdef SUPPORT_DOUBLE}
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function Real2Double(r : real48) : double;
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operator := (b:real48) d:double;
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{$endif}
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{$ifdef SUPPORT_EXTENDED}
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operator := (b:real48) e:extended;
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{$endif SUPPORT_EXTENDED}
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