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* sysdeps/sparc/sparc32/soft-fp/q_util.c (___Q_numbers): Delete. (___Q_zero): New. (__Q_simulate_exceptions): Return void. Change to simulate exceptions by writing into the %fsr. * sysdeps/sparc/sparc64/soft-fp/qp_util.c (__Qp_handle_exceptions): Likewise. (numbers): Delete. * sysdeps/sparc/sparc64/soft-fp/Versions: Remove entry for __Qp_handle_exceptions. * sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libc.abilist: Remove __Qp_handle_exceptions. * sysdeps/sparc/sparc32/soft-fp/sfp-machine.h (_FP_DECL_EX): Mark as unused and give dummy FP_RND_NEAREST initializer. (FP_INHIBIT_RESULTS): Define. (___Q_simulate_exceptions): Update declaration. (FP_HANDLE_EXCEPTIONS): Use ___Q_zero and tidy inline asm formatting. * sysdeps/sparc/sparc64/soft-fp/sfp-machine.h (_FP_DECL_EX): Mark as unused and give dummy FP_RND_NEAREST initializer. (__Qp_handle_exceptions): Update declaration. (FP_HANDLE_EXCEPTIONS, QP_NO_EXCEPTIONS): Tidy inline asm formatting.
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* Software floating-point emulation.
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Helper routine for _Q_* routines.
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Simulate exceptions using double arithmetics.
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Copyright (C) 1999, 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek (jj@ultra.linux.cz).
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include "soft-fp.h"
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unsigned long long ___Q_zero = 0x0000000000000000ULL;
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void ___Q_simulate_exceptions(int exceptions)
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{
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fpu_control_t fcw;
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int tem, ou;
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_FPU_GETCW(fcw);
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tem = (fcw >> 23) & 0x1f;
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ou = exceptions & (FP_EX_OVERFLOW | FP_EX_UNDERFLOW);
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if (ou & tem)
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exceptions &= ~FP_EX_INVALID;
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fcw &= ~0x1f;
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fcw |= (exceptions | (exceptions << 5));
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_FPU_SETCW(fcw);
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}
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