| /* Software floating-point emulation. |
| Compare (*a) and (*b), return float condition code. |
| Signal exception (unless masked) if unordered. |
| 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; 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_cmpe(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_SET_EXCEPTION(FP_EX_INVALID); |
| QP_HANDLE_EXCEPTIONS( |
| __asm ( |
| " ldd [%0], %%f52\n" |
| " ldd [%0+8], %%f54\n" |
| " ldd [%1], %%f56\n" |
| " ldd [%1+8], %%f58\n" |
| " fcmpeq %%fcc3, %%f52, %%f56\n" |
| " " : : "r" (a), "r" (b) : QP_CLOBBER_CC); |
| _FPU_GETCW(_fcw); |
| r = ((_fcw >> 36) & 3)); |
| |
| return r; |
| } |
