diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-alpha/sfp-machine.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-alpha/sfp-machine.h')
-rw-r--r-- | include/asm-alpha/sfp-machine.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/include/asm-alpha/sfp-machine.h b/include/asm-alpha/sfp-machine.h new file mode 100644 index 000000000000..5fe63afbd474 --- /dev/null +++ b/include/asm-alpha/sfp-machine.h | |||
@@ -0,0 +1,82 @@ | |||
1 | /* Machine-dependent software floating-point definitions. | ||
2 | Alpha kernel version. | ||
3 | Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. | ||
4 | This file is part of the GNU C Library. | ||
5 | Contributed by Richard Henderson (rth@cygnus.com), | ||
6 | Jakub Jelinek (jakub@redhat.com) and | ||
7 | David S. Miller (davem@redhat.com). | ||
8 | |||
9 | The GNU C Library is free software; you can redistribute it and/or | ||
10 | modify it under the terms of the GNU Library General Public License as | ||
11 | published by the Free Software Foundation; either version 2 of the | ||
12 | License, or (at your option) any later version. | ||
13 | |||
14 | The GNU C Library is distributed in the hope that it will be useful, | ||
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
17 | Library General Public License for more details. | ||
18 | |||
19 | You should have received a copy of the GNU Library General Public | ||
20 | License along with the GNU C Library; see the file COPYING.LIB. If | ||
21 | not, write to the Free Software Foundation, Inc., | ||
22 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | ||
23 | |||
24 | #ifndef _SFP_MACHINE_H | ||
25 | #define _SFP_MACHINE_H | ||
26 | |||
27 | #define _FP_W_TYPE_SIZE 64 | ||
28 | #define _FP_W_TYPE unsigned long | ||
29 | #define _FP_WS_TYPE signed long | ||
30 | #define _FP_I_TYPE long | ||
31 | |||
32 | #define _FP_MUL_MEAT_S(R,X,Y) \ | ||
33 | _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y) | ||
34 | #define _FP_MUL_MEAT_D(R,X,Y) \ | ||
35 | _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) | ||
36 | #define _FP_MUL_MEAT_Q(R,X,Y) \ | ||
37 | _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) | ||
38 | |||
39 | #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm) | ||
40 | #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv(D,R,X,Y) | ||
41 | #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) | ||
42 | |||
43 | #define _FP_NANFRAC_S _FP_QNANBIT_S | ||
44 | #define _FP_NANFRAC_D _FP_QNANBIT_D | ||
45 | #define _FP_NANFRAC_Q _FP_QNANBIT_Q | ||
46 | #define _FP_NANSIGN_S 1 | ||
47 | #define _FP_NANSIGN_D 1 | ||
48 | #define _FP_NANSIGN_Q 1 | ||
49 | |||
50 | #define _FP_KEEPNANFRACP 1 | ||
51 | |||
52 | /* Alpha Architecture Handbook, 4.7.10.4 sais that | ||
53 | * we should prefer any type of NaN in Fb, then Fa. | ||
54 | */ | ||
55 | #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ | ||
56 | do { \ | ||
57 | R##_s = Y##_s; \ | ||
58 | _FP_FRAC_COPY_##wc(R,X); \ | ||
59 | R##_c = FP_CLS_NAN; \ | ||
60 | } while (0) | ||
61 | |||
62 | /* Obtain the current rounding mode. */ | ||
63 | #define FP_ROUNDMODE mode | ||
64 | #define FP_RND_NEAREST (FPCR_DYN_NORMAL >> FPCR_DYN_SHIFT) | ||
65 | #define FP_RND_ZERO (FPCR_DYN_CHOPPED >> FPCR_DYN_SHIFT) | ||
66 | #define FP_RND_PINF (FPCR_DYN_PLUS >> FPCR_DYN_SHIFT) | ||
67 | #define FP_RND_MINF (FPCR_DYN_MINUS >> FPCR_DYN_SHIFT) | ||
68 | |||
69 | /* Exception flags. */ | ||
70 | #define FP_EX_INVALID IEEE_TRAP_ENABLE_INV | ||
71 | #define FP_EX_OVERFLOW IEEE_TRAP_ENABLE_OVF | ||
72 | #define FP_EX_UNDERFLOW IEEE_TRAP_ENABLE_UNF | ||
73 | #define FP_EX_DIVZERO IEEE_TRAP_ENABLE_DZE | ||
74 | #define FP_EX_INEXACT IEEE_TRAP_ENABLE_INE | ||
75 | #define FP_EX_DENORM IEEE_TRAP_ENABLE_DNO | ||
76 | |||
77 | #define FP_DENORM_ZERO (swcr & IEEE_MAP_DMZ) | ||
78 | |||
79 | /* We write the results always */ | ||
80 | #define FP_INHIBIT_RESULTS 0 | ||
81 | |||
82 | #endif | ||