diff options
Diffstat (limited to 'gcc-4.9/libgcc/config/arc/ieee-754/floatsidf.S')
-rw-r--r-- | gcc-4.9/libgcc/config/arc/ieee-754/floatsidf.S | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/arc/ieee-754/floatsidf.S b/gcc-4.9/libgcc/config/arc/ieee-754/floatsidf.S new file mode 100644 index 000000000..2e2363aeb --- /dev/null +++ b/gcc-4.9/libgcc/config/arc/ieee-754/floatsidf.S @@ -0,0 +1,77 @@ +/* Copyright (C) 2008-2014 Free Software Foundation, Inc. + Contributor: Joern Rennecke <joern.rennecke@embecosm.com> + on behalf of Synopsys Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC 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 General Public License +for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +<http://www.gnu.org/licenses/>. */ + +#include "arc-ieee-754.h" + +#if 0 /* DEBUG */ + .global __floatsidf + .balign 4 + FUNC(__floatsidf) +__floatsidf: + push_s blink + bl.d __floatsidf_c + push_s r0 + ld_s r2,[sp] + st_s r1,[sp] + push_s r0 + bl.d __floatsidf_asm + mov_s r0,r2 + pop_s r2 + pop_s r3 + pop_s blink + cmp r0,r2 + cmp.eq r1,r3 + jeq_s [blink] + bl abort + ENDFUNC(__floatsidf) +#define __floatsidf __floatsidf_asm +#endif /* DEBUG */ + + .global __floatsidf + .balign 4 + FUNC(__floatsidf) +__floatsidf: + abs.f r1,r0 + jeq_s [blink] + lsr r2,r1 + mov r12,-0x41d ; -(0x3ff+31-1) + norm r2,r2 + bclr.cs r12,r12,11 + rsub.f r3,r2,11 + add_s r12,r2,r12 + add_s r2,r2,21 +#ifdef __LITTLE_ENDIAN__ + asl DBL0L,r1,r2 + lsr_s DBL0H,r1,r3 +#else + lsr DBL0H,r1,r3 + asl_s DBL0L,r1,r2 +#endif + asl_s r12,r12,20 + mov.lo DBL0H,DBL0L + sub_s DBL0H,DBL0H,r12 + j_s.d [blink] + mov.ls DBL0L,0 + ENDFUNC(__floatsidf) |