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8d9254fc | 1 | /* Copyright (C) 2008-2020 Free Software Foundation, Inc. |
d38a64b4 JR |
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 __floatsidf | |
30 | .balign 4 | |
31 | FUNC(__floatsidf) | |
32 | __floatsidf: | |
33 | push_s blink | |
34 | bl.d __floatsidf_c | |
35 | push_s r0 | |
36 | ld_s r2,[sp] | |
37 | st_s r1,[sp] | |
38 | push_s r0 | |
39 | bl.d __floatsidf_asm | |
40 | mov_s r0,r2 | |
41 | pop_s r2 | |
42 | pop_s r3 | |
43 | pop_s blink | |
44 | cmp r0,r2 | |
45 | cmp.eq r1,r3 | |
46 | jeq_s [blink] | |
47 | bl abort | |
48 | ENDFUNC(__floatsidf) | |
49 | #define __floatsidf __floatsidf_asm | |
50 | #endif /* DEBUG */ | |
51 | ||
52 | .global __floatsidf | |
53 | .balign 4 | |
54 | FUNC(__floatsidf) | |
55 | __floatsidf: | |
56 | abs.f r1,r0 | |
57 | jeq_s [blink] | |
58 | lsr r2,r1 | |
59 | mov r12,-0x41d ; -(0x3ff+31-1) | |
60 | norm r2,r2 | |
61 | bclr.cs r12,r12,11 | |
62 | rsub.f r3,r2,11 | |
63 | add_s r12,r2,r12 | |
64 | add_s r2,r2,21 | |
65 | #ifdef __LITTLE_ENDIAN__ | |
66 | asl DBL0L,r1,r2 | |
67 | lsr_s DBL0H,r1,r3 | |
68 | #else | |
69 | lsr DBL0H,r1,r3 | |
70 | asl_s DBL0L,r1,r2 | |
71 | #endif | |
72 | asl_s r12,r12,20 | |
73 | mov.lo DBL0H,DBL0L | |
74 | sub_s DBL0H,DBL0H,r12 | |
75 | j_s.d [blink] | |
76 | mov.ls DBL0L,0 | |
77 | ENDFUNC(__floatsidf) |