1 /* Include file for internal GNU MP types and definitions.
2
3 Copyright (C) 1991, 1993, 1994, 1995, 1996, 2011 Free Software Foundation, Inc.
4
5 This file is part of the GNU MP Library.
6
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or (at your
10 option) any later version.
11
12 The GNU MP Library is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 License for more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with the GNU MP Library; see the file COPYING.LIB. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20 MA 02111-1307, USA. */
21
22 #include <stdlib.h>
23 #include "quadmath-imp.h"
24
25 #undef alloca
26 #define alloca __builtin_alloca
27
28 #define ABS(x) (x >= 0 ? x : -x)
29 #ifndef MIN
30 #define MIN(l,o) ((l) < (o) ? (l) : (o))
31 #endif
32 #ifndef MAX
33 #define MAX(h,i) ((h) > (i) ? (h) : (i))
34 #endif
35
36 #define BITS_PER_MP_LIMB (__SIZEOF_LONG__ * __CHAR_BIT__)
37 #define BYTES_PER_MP_LIMB (BITS_PER_MP_LIMB / __CHAR_BIT__)
38 typedef unsigned long int mp_limb_t;
39 typedef long int mp_limb_signed_t;
40
41 typedef mp_limb_t * mp_ptr;
42 typedef const mp_limb_t * mp_srcptr;
43 typedef long int mp_size_t;
44 typedef long int mp_exp_t;
45
46 /* Define stuff for longlong.h. */
47 typedef unsigned int UQItype __attribute__ ((mode (QI)));
48 typedef int SItype __attribute__ ((mode (SI)));
49 typedef unsigned int USItype __attribute__ ((mode (SI)));
50 typedef int DItype __attribute__ ((mode (DI)));
51 typedef unsigned int UDItype __attribute__ ((mode (DI)));
52
53 typedef mp_limb_t UWtype;
54 typedef unsigned int UHWtype;
55 #define W_TYPE_SIZE BITS_PER_MP_LIMB
56
57 #ifdef HAVE_HIDDEN_VISIBILITY
58 #define attribute_hidden __attribute__((__visibility__ ("hidden")))
59 #else
60 #define attribute_hidden
61 #endif
62
63 #include "longlong.h"
64
65 /* Copy NLIMBS *limbs* from SRC to DST. */
66 #define MPN_COPY_INCR(DST, SRC, NLIMBS) \
67 do { \
68 mp_size_t __i; \
69 for (__i = 0; __i < (NLIMBS); __i++) \
70 (DST)[__i] = (SRC)[__i]; \
71 } while (0)
72 #define MPN_COPY_DECR(DST, SRC, NLIMBS) \
73 do { \
74 mp_size_t __i; \
75 for (__i = (NLIMBS) - 1; __i >= 0; __i--) \
76 (DST)[__i] = (SRC)[__i]; \
77 } while (0)
78 #define MPN_COPY MPN_COPY_INCR
79
80 /* Zero NLIMBS *limbs* AT DST. */
81 #define MPN_ZERO(DST, NLIMBS) \
82 do { \
83 mp_size_t __i; \
84 for (__i = 0; __i < (NLIMBS); __i++) \
85 (DST)[__i] = 0; \
86 } while (0)
87
88 #define MPN_MUL_N_RECURSE(prodp, up, vp, size, tspace) \
89 do { \
90 if ((size) < KARATSUBA_THRESHOLD) \
91 impn_mul_n_basecase (prodp, up, vp, size); \
92 else \
93 impn_mul_n (prodp, up, vp, size, tspace); \
94 } while (0)
95
96 #define __MPN(x) __quadmath_mpn_##x
97
98 /* Internal mpn calls */
99 #define impn_mul_n_basecase __MPN(impn_mul_n_basecase)
100 #define impn_mul_n __MPN(impn_mul_n)
101
102 /* Prototypes for internal mpn calls. */
103 void impn_mul_n_basecase (mp_ptr prodp, mp_srcptr up, mp_srcptr vp,
104 mp_size_t size) attribute_hidden;
105 void impn_mul_n (mp_ptr prodp, mp_srcptr up, mp_srcptr vp, mp_size_t size,
106 mp_ptr tspace) attribute_hidden;
107
108 #define mpn_add_n __MPN(add_n)
109 #define mpn_addmul_1 __MPN(addmul_1)
110 #define mpn_cmp __MPN(cmp)
111 #define mpn_divrem __MPN(divrem)
112 #define mpn_lshift __MPN(lshift)
113 #define mpn_mul __MPN(mul)
114 #define mpn_mul_1 __MPN(mul_1)
115 #define mpn_rshift __MPN(rshift)
116 #define mpn_sub_n __MPN(sub_n)
117 #define mpn_submul_1 __MPN(submul_1)
118
119 mp_limb_t mpn_add_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t)
120 attribute_hidden;
121 mp_limb_t mpn_addmul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t)
122 attribute_hidden;
123 int mpn_cmp (mp_srcptr, mp_srcptr, mp_size_t) attribute_hidden;
124 mp_limb_t mpn_divrem (mp_ptr, mp_size_t, mp_ptr, mp_size_t, mp_srcptr,
125 mp_size_t) attribute_hidden;
126 mp_limb_t mpn_lshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int)
127 attribute_hidden;
128 mp_limb_t mpn_mul (mp_ptr, mp_srcptr, mp_size_t, mp_srcptr, mp_size_t)
129 attribute_hidden;
130 mp_limb_t mpn_mul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t)
131 attribute_hidden;
132 mp_limb_t mpn_rshift (mp_ptr, mp_srcptr, mp_size_t, unsigned int)
133 attribute_hidden;
134 mp_limb_t mpn_sub_n (mp_ptr, mp_srcptr, mp_srcptr, mp_size_t)
135 attribute_hidden;
136 mp_limb_t mpn_submul_1 (mp_ptr, mp_srcptr, mp_size_t, mp_limb_t)
137 attribute_hidden;
138
139 #define mpn_extract_flt128 __MPN(extract_flt128)
140 mp_size_t mpn_extract_flt128 (mp_ptr res_ptr, mp_size_t size, int *expt,
141 int *is_neg, __float128 value) attribute_hidden;
142
143 #define mpn_construct_float128 __MPN(construct_float128)
144 __float128 mpn_construct_float128 (mp_srcptr frac_ptr, int expt, int sign)
145 attribute_hidden;
146
147 #define mpn_divmod(qp,np,nsize,dp,dsize) mpn_divrem (qp,0,np,nsize,dp,dsize)
148
149 static inline mp_limb_t
mpn_add_1(register mp_ptr res_ptr,register mp_srcptr s1_ptr,register mp_size_t s1_size,register mp_limb_t s2_limb)150 mpn_add_1 (register mp_ptr res_ptr,
151 register mp_srcptr s1_ptr,
152 register mp_size_t s1_size,
153 register mp_limb_t s2_limb)
154 {
155 register mp_limb_t x;
156
157 x = *s1_ptr++;
158 s2_limb = x + s2_limb;
159 *res_ptr++ = s2_limb;
160 if (s2_limb < x)
161 {
162 while (--s1_size != 0)
163 {
164 x = *s1_ptr++ + 1;
165 *res_ptr++ = x;
166 if (x != 0)
167 goto fin;
168 }
169
170 return 1;
171 }
172
173 fin:
174 if (res_ptr != s1_ptr)
175 {
176 mp_size_t i;
177 for (i = 0; i < s1_size - 1; i++)
178 res_ptr[i] = s1_ptr[i];
179 }
180 return 0;
181 }
182