lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-30 22:43:12 +03:00
Code Activity

Moved from soft-fp/sysdeps/sparc/sparc64/s_scalbnl.c

Browse Source
This commit is contained in:
Andreas Jaeger
2000-09-05 09:07:19 +00:00
parent 584bbcdd2c
commit a9591af9e9
51 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
sysdeps/sparc/sparc64/soft-fp/qp_cmp.c Normal file
View File

@ -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;
}