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* sysdeps/m68k/bits/mathdef.h: Moved from sysdeps/m68k to sysdeps/m68k/m680x0. * sysdeps/m68k/m68020/submul_1.S: Likewise. * sysdeps/m68k/m68020/Makefile: Likewise. * sysdeps/m68k/m68020/mul_1.S: Likewise. * sysdeps/m68k/m68020/wordcopy.S: Likewise. * sysdeps/m68k/m68020/addmul_1.S: Likewise. * sysdeps/m68k/m68020/bits/string.h: Likewise. * sysdeps/m68k/m68020/bits/atomic.h: Likewise. * sysdeps/m68k/sub_n.S: Likewise. * sysdeps/m68k/add_n.S: Likewise. * sysdeps/m68k/s_isnanl.c: Likewise. * sysdeps/m68k/fpu/s_log1p.c: Likewise. * sysdeps/m68k/fpu/e_asinf.c: Likewise. * sysdeps/m68k/fpu/s_cosl.c: Likewise. * sysdeps/m68k/fpu/s_isinff.c: Likewise. * sysdeps/m68k/fpu/k_rem_pio2.c: Likewise. * sysdeps/m68k/fpu/s_ccos.c: Likewise. * sysdeps/m68k/fpu/s_expm1.c: Likewise. * sysdeps/m68k/fpu/slowexp.c: Likewise. * sysdeps/m68k/fpu/k_rem_pio2l.c: Likewise. * sysdeps/m68k/fpu/s_ccoshf.c: Likewise. * sysdeps/m68k/fpu/s_ilogbl.c: Likewise. * sysdeps/m68k/fpu/Makefile: Likewise. * sysdeps/m68k/fpu/s_expm1f.c: Likewise. * sysdeps/m68k/fpu/s_significandf.c: Likewise. * sysdeps/m68k/fpu/e_pow.c: Likewise. * sysdeps/m68k/fpu/s_csinh.c: Likewise. * sysdeps/m68k/fpu/e_exp.c: Likewise. * sysdeps/m68k/fpu/s_remquof.c: Likewise. * sysdeps/m68k/fpu/s_ilogbf.c: Likewise. * sysdeps/m68k/fpu/s_truncl.c: Likewise. * sysdeps/m68k/fpu/s_frexpf.c: Likewise. * sysdeps/m68k/fpu/s_cos.c: Likewise. * sysdeps/m68k/fpu/fraiseexcpt.c: Likewise. * sysdeps/m68k/fpu/branred.c: Likewise. * sysdeps/m68k/fpu/s_frexpl.c: Likewise. * sysdeps/m68k/fpu/s_atan.c: Likewise. * sysdeps/m68k/fpu/e_rem_pio2f.c: Likewise. * sysdeps/m68k/fpu/e_scalbl.c: Likewise. * sysdeps/m68k/fpu/e_exp2.c: Likewise. * sysdeps/m68k/fpu/s_cexpf.c: Likewise. * sysdeps/m68k/fpu/mplog.c: Likewise. * sysdeps/m68k/fpu/s_rintf.c: Likewise. * sysdeps/m68k/fpu/s_tanh.c: Likewise. * sysdeps/m68k/fpu/e_scalbf.c: Likewise. * sysdeps/m68k/fpu/s_csinhl.c: Likewise. * sysdeps/m68k/fpu/s_floorl.c: Likewise. * sysdeps/m68k/fpu/k_tanf.c: Likewise. * sysdeps/m68k/fpu/k_tanl.c: Likewise. * sysdeps/m68k/fpu/e_fmodf.c: Likewise. * sysdeps/m68k/fpu/e_atanhf.c: Likewise. * sysdeps/m68k/fpu/s_isnanf.c: Likewise. * sysdeps/m68k/fpu/s_fpclassifyl.c: Likewise. * sysdeps/m68k/fpu/s_modf.c: Likewise. * sysdeps/m68k/fpu/e_log2.c: Likewise. * sysdeps/m68k/fpu/e_acosf.c: Likewise. * sysdeps/m68k/fpu/s_log1pl.c: Likewise. * sysdeps/m68k/fpu/e_log2f.c: Likewise. * sysdeps/m68k/fpu/mpa.c: Likewise. * sysdeps/m68k/fpu/t_exp.c: Likewise. * sysdeps/m68k/fpu/e_acos.c: Likewise. * sysdeps/m68k/fpu/s_expm1l.c: Likewise. * sysdeps/m68k/fpu/s_ccoshl.c: Likewise. * sysdeps/m68k/fpu/s_sinf.c: Likewise. * sysdeps/m68k/fpu/k_tan.c: Likewise. * sysdeps/m68k/fpu/k_cosl.c: Likewise. * sysdeps/m68k/fpu/e_remainder.c: Likewise. * sysdeps/m68k/fpu/s_trunc.c: Likewise. * sysdeps/m68k/fpu/s_sincos.c: Likewise. * sysdeps/m68k/fpu/s_scalbnl.c: Likewise. * sysdeps/m68k/fpu/s_finitef.c: Likewise. * sysdeps/m68k/fpu/s_tanhl.c: Likewise. * sysdeps/m68k/fpu/s_lrintl.c: Likewise. * sysdeps/m68k/fpu/slowpow.c: Likewise. * sysdeps/m68k/fpu/mpexp.c: Likewise. * sysdeps/m68k/fpu/s_isnanl.c: Likewise. * sysdeps/m68k/fpu/e_expf.c: Likewise. * sysdeps/m68k/fpu/s_significand.c: Likewise. * sysdeps/m68k/fpu/e_sinhf.c: Likewise. * sysdeps/m68k/fpu/s_tanl.c: Likewise. * sysdeps/m68k/fpu/s_tanhf.c: Likewise. * sysdeps/m68k/fpu/s_cexp.c: Likewise. * sysdeps/m68k/fpu/e_sqrtf.c: Likewise. * sysdeps/m68k/fpu/s_isinf.c: Likewise. * sysdeps/m68k/fpu/s_nearbyint.c: Likewise. * sysdeps/m68k/fpu/e_fmod.c: Likewise. * sysdeps/m68k/fpu/sincos32.c: Likewise. * sysdeps/m68k/fpu/e_sqrtl.c: Likewise. * sysdeps/m68k/fpu/s_sincosl.c: Likewise. * sysdeps/m68k/fpu/e_atan2f.c: Likewise. * sysdeps/m68k/fpu/s_nearbyintf.c: Likewise. * sysdeps/m68k/fpu/e_fmodl.c: Likewise. * sysdeps/m68k/fpu/e_coshf.c: Likewise. * sysdeps/m68k/fpu/s_csinf.c: Likewise. * sysdeps/m68k/fpu/s_ccosl.c: Likewise. * sysdeps/m68k/fpu/e_sqrt.c: Likewise. * sysdeps/m68k/fpu/s_sin.c: Likewise. * sysdeps/m68k/fpu/e_asin.c: Likewise. * sysdeps/m68k/fpu/mptan.c: Likewise. * sysdeps/m68k/fpu/e_exp10f.c: Likewise. * sysdeps/m68k/fpu/e_scalb.c: Likewise. * sysdeps/m68k/fpu/s_finitel.c: Likewise. * sysdeps/m68k/fpu/e_log10.c: Likewise. * sysdeps/m68k/fpu/k_sinl.c: Likewise. * sysdeps/m68k/fpu/e_remainderl.c: Likewise. * sysdeps/m68k/fpu/s_remquol.c: Likewise. * sysdeps/m68k/fpu/s_scalblnf.c: Likewise. * sysdeps/m68k/fpu/s_llrint.c: Likewise. * sysdeps/m68k/fpu/e_rem_pio2.c: Likewise. * sysdeps/m68k/fpu/e_asinl.c: Likewise. * sysdeps/m68k/fpu/e_logl.c: Likewise. * sysdeps/m68k/fpu/s_cosf.c: Likewise. * sysdeps/m68k/fpu/s_rint.c: Likewise. * sysdeps/m68k/fpu/s_ceill.c: Likewise. * sysdeps/m68k/fpu/s_modfl.c: Likewise. * sysdeps/m68k/fpu/s_csinl.c: Likewise. * sysdeps/m68k/fpu/s_tan.c: Likewise. * sysdeps/m68k/fpu/s_sincosf.c: Likewise. * sysdeps/m68k/fpu/dosincos.c: Likewise. * sysdeps/m68k/fpu/e_powl.c: Likewise. * sysdeps/m68k/fpu/s_ilogb.c: Likewise. * sysdeps/m68k/fpu/s_llrintl.c: Likewise. * sysdeps/m68k/fpu/e_expl.c: Likewise. * sysdeps/m68k/fpu/libm-test-ulps: Likewise. * sysdeps/m68k/fpu/s_tanf.c: Likewise. * sysdeps/m68k/fpu/mpsqrt.c: Likewise. * sysdeps/m68k/fpu/s_sinl.c: Likewise. * sysdeps/m68k/fpu/mathimpl.h: Likewise. * sysdeps/m68k/fpu/e_acosl.c: Likewise. * sysdeps/m68k/fpu/e_cosh.c: Likewise. * sysdeps/m68k/fpu/s_cexpl.c: Likewise. * sysdeps/m68k/fpu/s_fabsl.c: Likewise. * sysdeps/m68k/fpu/halfulp.c: Likewise. * sysdeps/m68k/fpu/s_modff.c: Likewise. * sysdeps/m68k/fpu/s_isnan.c: Likewise. * sysdeps/m68k/fpu/e_atan2.c: Likewise. * sysdeps/m68k/fpu/s_fabs.c: Likewise. * sysdeps/m68k/fpu/e_log10f.c: Likewise. * sysdeps/m68k/fpu/k_cosf.c: Likewise. * sysdeps/m68k/fpu/e_sinh.c: Likewise. * sysdeps/m68k/fpu/s_truncf.c: Likewise. * sysdeps/m68k/fpu/s_ceil.c: Likewise. * sysdeps/m68k/fpu/s_log1pf.c: Likewise. * sysdeps/m68k/fpu/e_logf.c: Likewise. * sysdeps/m68k/fpu/mpatan.c: Likewise. * sysdeps/m68k/fpu/s_csin.c: Likewise. * sysdeps/m68k/fpu/e_exp2l.c: Likewise. * sysdeps/m68k/fpu/e_sinhl.c: Likewise. * sysdeps/m68k/fpu/e_atan2l.c: Likewise. * sysdeps/m68k/fpu/s_scalbn.c: Likewise. * sysdeps/m68k/fpu/s_floorf.c: Likewise. * sysdeps/m68k/fpu/e_log2l.c: Likewise. * sysdeps/m68k/fpu/s_atanl.c: Likewise. * sysdeps/m68k/fpu/s_llrintf.c: Likewise. * sysdeps/m68k/fpu/k_sinf.c: Likewise. * sysdeps/m68k/fpu/s_csinhf.c: Likewise. * sysdeps/m68k/fpu/s_frexp.c: Likewise. * sysdeps/m68k/fpu/s_atanf.c: Likewise. * sysdeps/m68k/fpu/s_floor.c: Likewise. * sysdeps/m68k/fpu/e_exp10l.c: Likewise. * sysdeps/m68k/fpu/doasin.c: Likewise. * sysdeps/m68k/fpu/s_rintl.c: Likewise. * sysdeps/m68k/fpu/e_atanhl.c: Likewise. * sysdeps/m68k/fpu/e_remainderf.c: Likewise. * sysdeps/m68k/fpu/s_scalbln.c: Likewise. * sysdeps/m68k/fpu/e_rem_pio2l.c: Likewise. * sysdeps/m68k/fpu/e_exp10.c: Likewise. * sysdeps/m68k/fpu/s_lrintf.c: Likewise. * sysdeps/m68k/fpu/k_cos.c: Likewise. * sysdeps/m68k/fpu/s_lrint.c: Likewise. * sysdeps/m68k/fpu/s_ccosf.c: Likewise. * sysdeps/m68k/fpu/s_scalblnl.c: Likewise. * sysdeps/m68k/fpu/switch/Makefile: Likewise. * sysdeps/m68k/fpu/switch/switch.c: Likewise. * sysdeps/m68k/fpu/switch/68881-sw.h: Likewise. * sysdeps/m68k/fpu/switch/bits/mathinline.h: Likewise. * sysdeps/m68k/fpu/e_log.c: Likewise. * sysdeps/m68k/fpu/s_nextafterl.c: Likewise. * sysdeps/m68k/fpu/s_nearbyintl.c: Likewise. * sysdeps/m68k/fpu/mpatan2.c: Likewise. * sysdeps/m68k/fpu/k_sin.c: Likewise. * sysdeps/m68k/fpu/e_atanh.c: Likewise. * sysdeps/m68k/fpu/s_remquo.c: Likewise. * sysdeps/m68k/fpu/e_log10l.c: Likewise. * sysdeps/m68k/fpu/s_ceilf.c: Likewise. * sysdeps/m68k/fpu/s_fabsf.c: Likewise. * sysdeps/m68k/fpu/s_significandl.c: Likewise. * sysdeps/m68k/fpu/s_ccosh.c: Likewise. * sysdeps/m68k/fpu/e_coshl.c: Likewise. * sysdeps/m68k/fpu/s_scalbnf.c: Likewise. * sysdeps/m68k/fpu/s_finite.c: Likewise. * sysdeps/m68k/fpu/e_exp2f.c: Likewise. * sysdeps/m68k/fpu/k_rem_pio2f.c: Likewise. * sysdeps/m68k/fpu/s_isinfl.c: Likewise. * sysdeps/m68k/fpu/bits/mathinline.h: Likewise. * sysdeps/m68k/fpu/e_powf.c: Likewise. * sysdeps/m68k/rshift.S: Likewise. * sysdeps/m68k/lshift.S: Likewise. * sysdeps/m68k/strtold_l.c: Likewise. * sysdeps/m68k/printf_fphex.c: Likewise. * sysdeps/m68k/s_isinfl.c: Likewise. * sysdeps/m68k/bits/huge_vall.h: Likewise. * sysdeps/m68k/asm-syntax.h (andw, andl, subqw, tstw, tstl): New. * sysdeps/m68k/bits/byteswap.h (__bswap32): Don't define for Coldfire targets. * sysdeps/m68k/bits/setjmp.h (__jmp_buf): Add a 64-byte __fpregs field for Coldfire FPUs. * sysdeps/m68k/dl-machine.h: Include sysdep.h. (elf_machine_load_address): Use PCREL_OP. (_dl_start_user): Likewise. * sysdeps/m68k/dl-trampoline.S (_dl_runtime_resolve): Avoid jmp (%dN) on Coldfire; push the target address and use rts instead. (_dl_runtime_profile): Likewise. Round up the frame size to longword rather than word alignment. Avoid dbra on Coldfire. Avoid using jsr (%d0) on Coldfire; push the return address and target address and use rts instead. Use fmovem.l rather than fmovem.x on Coldfire. Add missing initialization of lrv_a0 and restore a0 from it after calling _dl_call_pltexit. Adjust the stack offsets of later data accordingly, fixing a previously incorrect offset for the inregs parameter. * sysdeps/m68k/fpu/fegetenv.c (__fegetenv): Save the control registers individually on Coldfire targets. * sysdeps/m68k/fpu/feholdexcpt.c (feholdexcept): Likewise. Add missing libm_hidden_def. * sysdeps/m68k/fpu/fesetenv.c (__fesetenv): Save and restore the control registers individually on Coldfire targets. * sysdeps/m68k/fpu/fesetround.c (fesetround): Add missing libm_hidden_def. * sysdeps/m68k/fpu_control.h: Add the Coldfire bit assignments to the main comment. (_FPU_DOUBLE): Define to 0 for Coldfire. (_FPU_EXTENDED): Don't define for Coldfire. (_FPU_RESERVED): Include bit 15 for Coldfire. * sysdeps/m68k/Implies: Remove ieee754/ldbl-96. * sysdeps/m68k/m680x0/Implies: Add it to this new file instead. * sysdeps/m68k/ldsodefs.h: New file. * sysdeps/m68k/__longjmp.c (__longjmp): Restore the floating-point registers when using a Coldfire FPU. * sysdeps/m68k/Makefile (long-double-fcts): Delete. * sysdeps/m68k/m680x0/Makefile: Add it to this new file instead. * sysdeps/m68k/memchr.S (__memchr): Add Coldfire code. Avoid unnecessary moves. * sysdeps/m68k/preconfigure (m680?0): Add "m680x0" to $machine. (m68k): Use the compiler to decide whether $machine should be set to m68k/coldfire or m68k/m680x0/m68020. * sysdeps/m68k/rawmemchr.S (__rawmemchr): Add Coldfire code. Avoid unnecessary moves. * sysdeps/m68k/setjmp.c (__sigsetjmp): Save the floating-point registers when using a Coldfire FPU. Use libc_hidden_def rather than hidden_def. * sysdeps/m68k/strchrnul.S (__strchrnul): Add Coldfire code. Avoid unnecessary moves. * sysdeps/m68k/strchr.S (strchr): Likewise. * sysdeps/m68k/sysdep.h (PCREL_OP): Define. * sysdeps/m68k/tst-audit.h: New file. * sysdeps/m68k/wcpcpy.c: Likewise. * sysdeps/m68k/wcpcpy_chk.c: Likewise. * sysdeps/unix/sysv/linux/m68k/configure.in: New file. * sysdeps/unix/sysv/linux/m68k/configure: Likewise. * sysdeps/unix/sysv/linux/m68k/clone.S (__clone): Add Coldfire code. * sysdeps/unix/sysv/linux/m68k/register-dump.h (real_catch_segfault): Do not define on Coldfire. (catch_segfault): Likewise. (register_dump): Use the Coldfire-specific sigcontext fields to display call-saved data and address registers (rather than the data stored in sc_fpstate by real_catch_segfault). Display 8-byte floating-point registers on Coldfire. * sysdeps/unix/sysv/linux/m68k/socket.S (__socket): Pass a temporary register to SINGLE_THREAD_P. * sysdeps/unix/sysv/linux/m68k/sys/reg.h (PT_FP0): Redefine for Coldfire. (PT_FP1, PT_FP2, PT_FP3, PT_FP4, PT_FP5, PT_FP6, PT_FP7): Likewise. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (fpregset): Sync field order with linux. Make f_fpregs an 8*2 array on Coldfire. (ucontext): Sync field order with linux. * sysdeps/unix/sysv/linux/m68k/sysdep.h: Guard against multiple inclusion. (SYSCALL_ERROR_HANDLER): Use PCREL_OP. * sysdeps/unix/sysv/linux/m68k/syscalls.list (oldgetrlimit): Delete. (oldsetrlimit): Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/syscalls.list: New file. List oldgetrlimit and oldsetrlimit here instead. * sysdeps/unix/sysv/linux/m68k/bits/sigcontext.h: New file. * sysdeps/unix/sysv/linux/m68k/bits/siginfo.h: Likewise. * sysdeps/m68k/coldfire/bits/atomic.h: Likewise. * sysdeps/m68k/coldfire/fpu/e_sqrt.c: Likewise. * sysdeps/m68k/coldfire/fpu/e_sqrtf.c: Likewise. * sysdeps/m68k/coldfire/fpu/fraiseexcpt.c: Likewise. * sysdeps/m68k/coldfire/fpu/libm-test-ulps: Likewise. * sysdeps/m68k/coldfire/fpu/s_fabs.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_fabsf.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_lrint.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_lrintf.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise. * sysdeps/m68k/coldfire/shlib-versions: Likewise.
110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
/* 68k FPU control word definitions.
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Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _FPU_CONTROL_H
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#define _FPU_CONTROL_H
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/*
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* Motorola floating point control register bits.
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*
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* 31-16 -> reserved (read as 0, ignored on write)
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* 15 -> enable trap for BSUN exception
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* 14 -> enable trap for SNAN exception
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* 13 -> enable trap for OPERR exception
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* 12 -> enable trap for OVFL exception
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* 11 -> enable trap for UNFL exception
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* 10 -> enable trap for DZ exception
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* 9 -> enable trap for INEX2 exception (INEX on Coldfire)
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* 8 -> enable trap for INEX1 exception (IDE on Coldfire)
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* 7-6 -> Precision Control (only bit 6 is used on Coldfire)
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* 5-4 -> Rounding Control
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* 3-0 -> zero (read as 0, write as 0)
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*
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*
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* Precision Control:
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* 00 - round to extended precision
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* 01 - round to single precision
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* 10 - round to double precision
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* 11 - undefined
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*
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* Rounding Control:
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* 00 - rounding to nearest (RN)
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* 01 - rounding toward zero (RZ)
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* 10 - rounding (down)toward minus infinity (RM)
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* 11 - rounding (up) toward plus infinity (RP)
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*
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* The hardware default is 0x0000. I choose 0x5400.
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*/
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#include <features.h>
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/* masking of interrupts */
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#define _FPU_MASK_BSUN 0x8000
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#define _FPU_MASK_SNAN 0x4000
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#define _FPU_MASK_OPERR 0x2000
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#define _FPU_MASK_OVFL 0x1000
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#define _FPU_MASK_UNFL 0x0800
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#define _FPU_MASK_DZ 0x0400
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#define _FPU_MASK_INEX1 0x0200
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#define _FPU_MASK_INEX2 0x0100
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/* precision control */
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#ifdef __mcoldfire__
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#define _FPU_DOUBLE 0x00
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#else
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#define _FPU_EXTENDED 0x00 /* RECOMMENDED */
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#define _FPU_DOUBLE 0x80
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#endif
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#define _FPU_SINGLE 0x40 /* DO NOT USE */
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/* rounding control */
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#define _FPU_RC_NEAREST 0x00 /* RECOMMENDED */
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#define _FPU_RC_ZERO 0x10
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#define _FPU_RC_DOWN 0x20
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#define _FPU_RC_UP 0x30
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#ifdef __mcoldfire__
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#define _FPU_RESERVED 0xFFFF800F
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#else
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#define _FPU_RESERVED 0xFFFF000F /* Reserved bits in fpucr */
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#endif
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/* Now two recommended fpucr */
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/* The fdlibm code requires no interrupts for exceptions. Don't
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change the rounding mode, it would break long double I/O! */
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#define _FPU_DEFAULT 0x00000000
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/* IEEE: same as above, but exceptions. We must make it non-zero so
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that __setfpucw works. This bit will be ignored. */
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#define _FPU_IEEE 0x00000001
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/* Type of the control word. */
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typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__)));
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/* Macros for accessing the hardware control word. */
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#define _FPU_GETCW(cw) __asm__ ("fmove%.l %!, %0" : "=dm" (cw))
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#define _FPU_SETCW(cw) __asm__ volatile ("fmove%.l %0, %!" : : "dm" (cw))
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/* Default control word set at startup. */
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extern fpu_control_t __fpu_control;
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#endif /* _M68K_FPU_CONTROL_H */
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