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d1538ab023
+ RTL support:
o VFP exceptions are disabled by default on Darwin,
because they cause kernel panics on iPhoneOS 2.2.1 at least
o all denormals are truncated to 0 on Darwin, because disabling
that also causes kernel panics on iPhoneOS 2.2.1 (probably
because otherwise denormals can also cause exceptions)
* set softfloat rounding mode correctly for non-wince/darwin/vfp
targets
+ compiler support: only half the number of single precision
registers is available due to limitations of the register
allocator
+ added a number of comments about why the stackframe on ARM is
set up the way it is by the compiler
+ added regtype and subregtype info to regsets, because they're
also used for VFP registers (+ support in assembler reader)
+ various generic support routines for dealing with floating point
values located in integer registers that have to be transferred to
mm registers (needed for VFP)
* renamed use_sse() to use_vectorfpu() and also use it for
ARM/vfp support
o only superficially tested for Linux (compiler compiled with -Cpvfpv6
-Cfvfpv2 works on a Cortex-A8, no testsuite run performed -- at least
the fpu exception handler still needs to be implemented), Darwin has
been tested more thoroughly
+ added ARMv6 cpu type and made it default for Darwin/ARM
+ ARMv6+ implementations of atomic operations using ldrex/strex
* don't use r9 on Darwin/ARM, as it's reserved under certain
circumstances (don't know yet which ones)
* changed C-test object files for ARM/Darwin to ARMv6 versions
* check in assembler reader that regsets are not empty, because
instructions with a regset operand have undefined behaviour in that
case
* fixed resultdef of tarmtypeconvnode.first_int_to_real in case of
int64->single type conversion
* fixed constant pool locations in case 64 bit constants are generated,
and/or when vfp instructions with limited reach are present
WARNING: when using VFP on an ARMv6 or later cpu, you *must* compile all
code with -Cparmv6 (or higher), or you will get crashes. The reason is
that storing/restoring multiple VFP registers must happen using
different instructions on pre/post-ARMv6.
git-svn-id: trunk@14317 -
78 lines
2.4 KiB
PHP
78 lines
2.4 KiB
PHP
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2003 by the Free Pascal development team.
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Implementation of mathematical Routines (only for real)
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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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{$if defined(FPUFPA) or defined(FPUFPA10) or defined(FPUFPA11) or defined(FPUVFPV2) or defined(FPUVFPV3)}
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{$define FPC_SYSTEM_HAS_ABS}
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function fpc_abs_real(d : ValReal) : ValReal;compilerproc;
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begin
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{ Function is handled internal in the compiler }
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runerror(207);
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result:=0;
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end;
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{$define FPC_SYSTEM_HAS_SQR}
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function fpc_sqr_real(d : ValReal) : ValReal;compilerproc;
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begin
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{ Function is handled internal in the compiler }
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runerror(207);
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result:=0;
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end;
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{$ifndef FPC_SYSTEM_HAS_SQRT}
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{$define FPC_SYSTEM_HAS_SQRT}
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function fpc_sqrt_real(d : ValReal) : ValReal;compilerproc;
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begin
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{ Function is handled internal in the compiler }
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runerror(207);
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result:=0;
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end;
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{$endif FPC_SYSTEM_HAS_SQRT}
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{$endif}
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(* atn isn't supported by the linux fpe it seems
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{$define FPC_SYSTEM_HAS_ARCTAN}
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function fpc_arctan_real(d : extended) : extended;compilerproc;
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begin
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{ Function is handled internal in the compiler }
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runerror(207);
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result:=0;
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end;
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*)
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(* lgn isn't supported by the linux fpe it seems
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{$define FPC_SYSTEM_HAS_LN}
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function fpc_ln_real(d : extended) : extended;compilerproc;
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begin
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{ Function is handled internal in the compiler }
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runerror(207);
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result:=0;
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end;
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*)
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(* sind isn't supported by the linux fpe it seems
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{$define FPC_SYSTEM_HAS_SIN}
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function fpc_sin_real(d : extended) : extended;compilerproc;
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begin
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{ Function is handled internal in the compiler }
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runerror(207);
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result:=0;
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end;
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*)
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(* cos isn't supported by the linux fpe it seems
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{$define FPC_SYSTEM_HAS_COS}
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function fpc_cos_real(d : extended) : extended;compilerproc;
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begin
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{ Function is handled internal in the compiler }
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runerror(207);
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result:=0;
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end;
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*)
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