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25 #ifndef __MATH_EMU_QUAD_H__
26 #define __MATH_EMU_QUAD_H__
27
28 #if _FP_W_TYPE_SIZE < 32
29 #error "Here's a nickel, kid. Go buy yourself a real computer."
30 #endif
31
32 #if _FP_W_TYPE_SIZE < 64
33 #define _FP_FRACTBITS_Q (4*_FP_W_TYPE_SIZE)
34 #else
35 #define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE)
36 #endif
37
38 #define _FP_FRACBITS_Q 113
39 #define _FP_FRACXBITS_Q (_FP_FRACTBITS_Q - _FP_FRACBITS_Q)
40 #define _FP_WFRACBITS_Q (_FP_WORKBITS + _FP_FRACBITS_Q)
41 #define _FP_WFRACXBITS_Q (_FP_FRACTBITS_Q - _FP_WFRACBITS_Q)
42 #define _FP_EXPBITS_Q 15
43 #define _FP_EXPBIAS_Q 16383
44 #define _FP_EXPMAX_Q 32767
45
46 #define _FP_QNANBIT_Q \
47 ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE)
48 #define _FP_IMPLBIT_Q \
49 ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE)
50 #define _FP_OVERFLOW_Q \
51 ((_FP_W_TYPE)1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE))
52
53 #if _FP_W_TYPE_SIZE < 64
54
55 union _FP_UNION_Q
56 {
57 long double flt;
58 struct
59 {
60 #if __BYTE_ORDER == __BIG_ENDIAN
61 unsigned sign : 1;
62 unsigned exp : _FP_EXPBITS_Q;
63 unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3);
64 unsigned long frac2 : _FP_W_TYPE_SIZE;
65 unsigned long frac1 : _FP_W_TYPE_SIZE;
66 unsigned long frac0 : _FP_W_TYPE_SIZE;
67 #else
68 unsigned long frac0 : _FP_W_TYPE_SIZE;
69 unsigned long frac1 : _FP_W_TYPE_SIZE;
70 unsigned long frac2 : _FP_W_TYPE_SIZE;
71 unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3);
72 unsigned exp : _FP_EXPBITS_Q;
73 unsigned sign : 1;
74 #endif
75 } bits __attribute__((packed));
76 };
77
78
79 #define FP_DECL_Q(X) _FP_DECL(4,X)
80 #define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_4(Q,X,val)
81 #define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_4_P(Q,X,val)
82 #define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_4(Q,val,X)
83 #define FP_PACK_RAW_QP(val,X) \
84 do { \
85 if (!FP_INHIBIT_RESULTS) \
86 _FP_PACK_RAW_4_P(Q,val,X); \
87 } while (0)
88
89 #define FP_UNPACK_Q(X,val) \
90 do { \
91 _FP_UNPACK_RAW_4(Q,X,val); \
92 _FP_UNPACK_CANONICAL(Q,4,X); \
93 } while (0)
94
95 #define FP_UNPACK_QP(X,val) \
96 do { \
97 _FP_UNPACK_RAW_4_P(Q,X,val); \
98 _FP_UNPACK_CANONICAL(Q,4,X); \
99 } while (0)
100
101 #define FP_PACK_Q(val,X) \
102 do { \
103 _FP_PACK_CANONICAL(Q,4,X); \
104 _FP_PACK_RAW_4(Q,val,X); \
105 } while (0)
106
107 #define FP_PACK_QP(val,X) \
108 do { \
109 _FP_PACK_CANONICAL(Q,4,X); \
110 if (!FP_INHIBIT_RESULTS) \
111 _FP_PACK_RAW_4_P(Q,val,X); \
112 } while (0)
113
114 #define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,4,X)
115 #define FP_NEG_Q(R,X) _FP_NEG(Q,4,R,X)
116 #define FP_ADD_Q(R,X,Y) _FP_ADD(Q,4,R,X,Y)
117 #define FP_SUB_Q(R,X,Y) _FP_SUB(Q,4,R,X,Y)
118 #define FP_MUL_Q(R,X,Y) _FP_MUL(Q,4,R,X,Y)
119 #define FP_DIV_Q(R,X,Y) _FP_DIV(Q,4,R,X,Y)
120 #define FP_SQRT_Q(R,X) _FP_SQRT(Q,4,R,X)
121 #define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_4(R,S,T,X,Q)
122
123 #define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,4,r,X,Y,un)
124 #define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,4,r,X,Y)
125
126 #define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,4,r,X,rsz,rsg)
127 #define FP_TO_INT_ROUND_Q(r,X,rsz,rsg) _FP_TO_INT_ROUND(Q,4,r,X,rsz,rsg)
128 #define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,4,X,r,rs,rt)
129
130 #define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_4(X)
131 #define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_4(X)
132
133 #else
134 union _FP_UNION_Q
135 {
136 long double flt ;
137 struct {
138 #if __BYTE_ORDER == __BIG_ENDIAN
139 unsigned sign : 1;
140 unsigned exp : _FP_EXPBITS_Q;
141 unsigned long frac1 : _FP_FRACBITS_Q-(_FP_IMPLBIT_Q != 0)-_FP_W_TYPE_SIZE;
142 unsigned long frac0 : _FP_W_TYPE_SIZE;
143 #else
144 unsigned long frac0 : _FP_W_TYPE_SIZE;
145 unsigned long frac1 : _FP_FRACBITS_Q-(_FP_IMPLBIT_Q != 0)-_FP_W_TYPE_SIZE;
146 unsigned exp : _FP_EXPBITS_Q;
147 unsigned sign : 1;
148 #endif
149 } bits;
150 };
151
152 #define FP_DECL_Q(X) _FP_DECL(2,X)
153 #define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_2(Q,X,val)
154 #define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_2_P(Q,X,val)
155 #define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_2(Q,val,X)
156 #define FP_PACK_RAW_QP(val,X) \
157 do { \
158 if (!FP_INHIBIT_RESULTS) \
159 _FP_PACK_RAW_2_P(Q,val,X); \
160 } while (0)
161
162 #define FP_UNPACK_Q(X,val) \
163 do { \
164 _FP_UNPACK_RAW_2(Q,X,val); \
165 _FP_UNPACK_CANONICAL(Q,2,X); \
166 } while (0)
167
168 #define FP_UNPACK_QP(X,val) \
169 do { \
170 _FP_UNPACK_RAW_2_P(Q,X,val); \
171 _FP_UNPACK_CANONICAL(Q,2,X); \
172 } while (0)
173
174 #define FP_PACK_Q(val,X) \
175 do { \
176 _FP_PACK_CANONICAL(Q,2,X); \
177 _FP_PACK_RAW_2(Q,val,X); \
178 } while (0)
179
180 #define FP_PACK_QP(val,X) \
181 do { \
182 _FP_PACK_CANONICAL(Q,2,X); \
183 if (!FP_INHIBIT_RESULTS) \
184 _FP_PACK_RAW_2_P(Q,val,X); \
185 } while (0)
186
187 #define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,2,X)
188 #define FP_NEG_Q(R,X) _FP_NEG(Q,2,R,X)
189 #define FP_ADD_Q(R,X,Y) _FP_ADD(Q,2,R,X,Y)
190 #define FP_SUB_Q(R,X,Y) _FP_SUB(Q,2,R,X,Y)
191 #define FP_MUL_Q(R,X,Y) _FP_MUL(Q,2,R,X,Y)
192 #define FP_DIV_Q(R,X,Y) _FP_DIV(Q,2,R,X,Y)
193 #define FP_SQRT_Q(R,X) _FP_SQRT(Q,2,R,X)
194 #define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q)
195
196 #define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,2,r,X,Y,un)
197 #define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,2,r,X,Y)
198
199 #define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,2,r,X,rsz,rsg)
200 #define FP_TO_INT_ROUND_Q(r,X,rsz,rsg) _FP_TO_INT_ROUND(Q,2,r,X,rsz,rsg)
201 #define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,2,X,r,rs,rt)
202
203 #define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_2(X)
204 #define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_2(X)
205
206 #endif
207
208 #endif