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author | Andreas Jaeger <aj@suse.de> | 2000-09-05 09:07:19 +0000 |
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committer | Andreas Jaeger <aj@suse.de> | 2000-09-05 09:07:19 +0000 |
commit | a9591af9e9ff0ecd0ae09214bd6e19157bff61d8 (patch) | |
tree | 550b41649c499b71688c6664435f64fd98992f99 /sysdeps/sparc/sparc64/soft-fp/qp_cmp.c | |
parent | 584bbcdd2cc662d532024ca62db53413f6d05a15 (diff) | |
download | glibc-a9591af9e9ff0ecd0ae09214bd6e19157bff61d8.zip glibc-a9591af9e9ff0ecd0ae09214bd6e19157bff61d8.tar.gz glibc-a9591af9e9ff0ecd0ae09214bd6e19157bff61d8.tar.bz2 |
Moved from soft-fp/sysdeps/sparc/sparc64/s_scalbnl.c
Diffstat (limited to 'sysdeps/sparc/sparc64/soft-fp/qp_cmp.c')
-rw-r--r-- | sysdeps/sparc/sparc64/soft-fp/qp_cmp.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/soft-fp/qp_cmp.c b/sysdeps/sparc/sparc64/soft-fp/qp_cmp.c new file mode 100644 index 0000000..739fb5e --- /dev/null +++ b/sysdeps/sparc/sparc64/soft-fp/qp_cmp.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Compare (*a) and (*b), return float condition code. + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_cmp(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_Q(r, B, A, 3); + if (r == -1) r = 2; + if (r == 3 && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3)); + + return r; +} |