libgcc/config/arc/ieee-754/floatsisf.S

   1 /* Copyright (C) 2008-2019 Free Software Foundation, Inc.
   2    Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
   3                 on behalf of Synopsys Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 #include "arc-ieee-754.h"
  27
  28 #if 0 /* DEBUG */
  29         .global __floatsisf
  30         FUNC(__floatsisf)
  31         .balign 4
  32 __floatsisf:
  33         push_s blink
  34         bl.d __floatsisf_c
  35         push_s r0
  36         ld_s r1,[sp]
  37         st_s r0,[sp]
  38         bl.d __floatsisf_asm
  39         mov_s r0,r1
  40         pop_s r1
  41         pop_s blink
  42         cmp r0,r1
  43         jeq_s [blink]
  44         bl abort
  45         ENDFUNC(__floatsisf)
  46         .global __floatunsisf
  47         FUNC(__floatunsisf)
  48         .balign 4
  49 __floatunsisf:
  50         push_s blink
  51         bl.d __floatunsisf_c
  52         push_s r0
  53         ld_s r1,[sp]
  54         st_s r0,[sp]
  55         bl.d __floatunsisf_asm
  56         mov_s r0,r1
  57         pop_s r1
  58         pop_s blink
  59         cmp r0,r1
  60         jeq_s [blink]
  61         bl abort
  62         ENDFUNC(__floatunsisf)
  63 #define __floatsisf __floatsisf_asm
  64 #define __floatunsisf __floatunsisf_asm
  65 #endif /* DEBUG */
  66
  67         .global __floatunsisf
  68         .global __floatsisf
  69         FUNC(__floatsisf)
  70         FUNC(__floatunsisf)
  71         .balign 4
  72 __floatunsisf:
  73         lsr_s r2,r0
  74         mov_l r12,0x9d ; 0x7f + 31 - 1
  75         norm r2,r2
  76         brne_l r0,0,0f
  77         j_s [blink]
  78         .balign 4
  79 __floatsisf:
  80         abs.f r0,r0
  81         jeq_s [blink]
  82         lsr_s r2,r0
  83         mov_s r12,0x9d ; 0x7f + 31 - 1
  84         norm r2,r2
  85         bset.cs r12,r12,8
  86 0:      rsub.f r3,r2,8
  87         bmsk r1,r0,r3
  88         ror r1,r1,r3
  89         lsr.pl r0,r0,r3
  90         neg_s r3,r3
  91         asl.mi r0,r0,r3
  92         sub_s r12,r12,r2
  93         asl_s r12,r12,23
  94         bxor.pl.f r1,r1,31
  95         add_s r0,r0,r12
  96         j_s.d [blink]
  97         add.pnz r0,r0,1
  98         ENDFUNC(__floatunsisf)
  99         ENDFUNC(__floatsisf)