diff options
author | Joshua Bakita <bakitajoshua@gmail.com> | 2019-10-07 19:13:39 -0400 |
---|---|---|
committer | Joshua Bakita <bakitajoshua@gmail.com> | 2019-10-07 19:13:39 -0400 |
commit | 386b7d3366f1359a265da207a9cafa3edf553b64 (patch) | |
tree | c76120c2c138faed822e4ae386be6ef22a738a78 /baseline/source/fmref | |
parent | 54a3f7091a2146b29c73a6fdc4b62a5c4ad7a3d8 (diff) |
Reorganize and commit all the modified TACLeBench code and run scripts
Diffstat (limited to 'baseline/source/fmref')
-rw-r--r-- | baseline/source/fmref/Changelog.txt | 5 | ||||
-rw-r--r-- | baseline/source/fmref/fmref.c | 283 | ||||
-rw-r--r-- | baseline/source/fmref/license.txt | 21 | ||||
-rw-r--r-- | baseline/source/fmref/math_private.h | 178 | ||||
-rw-r--r-- | baseline/source/fmref/wcclibm.c | 522 | ||||
-rw-r--r-- | baseline/source/fmref/wcclibm.h | 54 |
6 files changed, 1063 insertions, 0 deletions
diff --git a/baseline/source/fmref/Changelog.txt b/baseline/source/fmref/Changelog.txt new file mode 100644 index 0000000..e9e7055 --- /dev/null +++ b/baseline/source/fmref/Changelog.txt | |||
@@ -0,0 +1,5 @@ | |||
1 | 2017-06-27 | ||
2 | - Remove unused variables | ||
3 | - Introduce fmref_init and fmref_return functions. | ||
4 | - Add prefix fmref_ to global variables. | ||
5 | - Introduce dummy initialization in ieee754_rem_pio2f to please linter. | ||
diff --git a/baseline/source/fmref/fmref.c b/baseline/source/fmref/fmref.c new file mode 100644 index 0000000..6be1436 --- /dev/null +++ b/baseline/source/fmref/fmref.c | |||
@@ -0,0 +1,283 @@ | |||
1 | /* | ||
2 | * fmref.c: C reference implementation of FM Radio | ||
3 | * David Maze <dmaze@cag.lcs.mit.edu> | ||
4 | * $Id: fmref.c,v 1.2 2010-10-04 21:21:26 garus Exp $ | ||
5 | */ | ||
6 | |||
7 | |||
8 | #include "../extra.h" | ||
9 | #include "wcclibm.h" | ||
10 | #ifndef M_PI | ||
11 | #define M_PI 3.1415926535897932384626433832795 | ||
12 | #endif | ||
13 | |||
14 | // Defines | ||
15 | #define SAMPLING_RATE 250000000 | ||
16 | #define CUTOFF_FREQUENCY 108000000 | ||
17 | #define NUM_TAPS 64 | ||
18 | #define MAX_AMPLITUDE 27000.0 | ||
19 | #define BANDWIDTH 10000 | ||
20 | #define DECIMATION 4 | ||
21 | /* Must be at least NUM_TAPS+1: */ | ||
22 | #define IN_BUFFER_LEN 200 | ||
23 | #define EQUALIZER_BANDS 10 | ||
24 | |||
25 | |||
26 | // Type declarations | ||
27 | typedef struct FloatBuffer | ||
28 | { | ||
29 | float buff[IN_BUFFER_LEN]; | ||
30 | int rpos, rlen; | ||
31 | } | ||
32 | FloatBuffer; | ||
33 | /* Low pass filter: */ | ||
34 | typedef struct LPFData | ||
35 | { | ||
36 | float coeff[NUM_TAPS]; | ||
37 | float freq; | ||
38 | int taps, decimation; | ||
39 | } | ||
40 | LPFData; | ||
41 | typedef struct EqualizerData | ||
42 | { | ||
43 | LPFData lpf[EQUALIZER_BANDS + 1]; | ||
44 | FloatBuffer fb[EQUALIZER_BANDS + 1]; | ||
45 | float gain[EQUALIZER_BANDS]; | ||
46 | } | ||
47 | EqualizerData; | ||
48 | |||
49 | // Global vars | ||
50 | float fmref_lpf_coeff[NUM_TAPS]; | ||
51 | float fmref_eq_cutoffs[EQUALIZER_BANDS + 1] = | ||
52 | { 55.000004f, 77.78174f, 110.00001f, 155.56354f, 220.00002f, 311.12695f, | ||
53 | 440.00003f, 622.25415f, 880.00006f, 1244.5078f, 1760.0001f }; | ||
54 | static int fmref_numiters = 2; | ||
55 | |||
56 | // Forward declarations | ||
57 | void fmref_fb_compact(FloatBuffer *fb); | ||
58 | int fmref_fb_ensure_writable(FloatBuffer *fb, int amount); | ||
59 | void fmref_get_floats(FloatBuffer *fb); | ||
60 | void fmref_init_lpf_data(LPFData *data, float freq, int taps, int decimation); | ||
61 | void fmref_run_lpf(FloatBuffer *fbin, FloatBuffer *fbout, LPFData *data); | ||
62 | void fmref_run_demod(FloatBuffer *fbin, FloatBuffer *fbout); | ||
63 | void fmref_init_equalizer(EqualizerData *data); | ||
64 | void fmref_run_equalizer(FloatBuffer *fbin, FloatBuffer *fbout, EqualizerData *data); | ||
65 | void fmref_main(void); | ||
66 | |||
67 | void fmref_init(void) | ||
68 | { | ||
69 | // dummy init function | ||
70 | } | ||
71 | |||
72 | int fmref_return(void) | ||
73 | { | ||
74 | // dummy return value | ||
75 | return 0; | ||
76 | } | ||
77 | |||
78 | int main(int argc, char **argv){ | ||
79 | |||
80 | SET_UP | ||
81 | for(jobsComplete=-1; jobsComplete<maxJobs; jobsComplete++){ | ||
82 | START_LOOP | ||
83 | fmref_init(); | ||
84 | fmref_main(); | ||
85 | STOP_LOOP | ||
86 | } | ||
87 | WRITE_TO_FILE | ||
88 | return fmref_return(); | ||
89 | } | ||
90 | |||
91 | FloatBuffer fmref_fb1, fmref_fb2, fmref_fb3, fmref_fb4; | ||
92 | LPFData fmref_lpf_data; | ||
93 | |||
94 | void fmref_main(void) | ||
95 | { | ||
96 | int i; | ||
97 | EqualizerData eq_data; | ||
98 | |||
99 | fmref_fb1.rpos = fmref_fb1.rlen = 0; | ||
100 | fmref_fb2.rpos = fmref_fb2.rlen = 0; | ||
101 | fmref_fb3.rpos = fmref_fb3.rlen = 0; | ||
102 | fmref_fb4.rpos = fmref_fb4.rlen = 0; | ||
103 | |||
104 | fmref_init_lpf_data(&fmref_lpf_data, CUTOFF_FREQUENCY, NUM_TAPS, DECIMATION); | ||
105 | fmref_init_equalizer(&eq_data); | ||
106 | |||
107 | /* Startup: */ | ||
108 | fmref_get_floats(&fmref_fb1); | ||
109 | /* LPF needs at least NUM_TAPS+1 inputs; fmref_get_floats is fine. */ | ||
110 | fmref_run_lpf(&fmref_fb1, &fmref_fb2, &fmref_lpf_data); | ||
111 | /* run_demod needs 1 input, OK here. */ | ||
112 | /* run_equalizer needs 51 inputs (same reason as for LPF). This means | ||
113 | * running the pipeline up to demod 50 times in advance: */ | ||
114 | _Pragma( "loopbound min 64 max 64" ) | ||
115 | for (i = 0; i < 64; i++) { | ||
116 | if (fmref_fb1.rlen - fmref_fb1.rpos < NUM_TAPS + 1) | ||
117 | fmref_get_floats(&fmref_fb1); | ||
118 | fmref_run_lpf(&fmref_fb1, &fmref_fb2, &fmref_lpf_data); | ||
119 | fmref_run_demod(&fmref_fb2, &fmref_fb3); | ||
120 | } | ||
121 | |||
122 | /* Main loop: */ | ||
123 | _Pragma( "loopbound min 2 max 2" ) | ||
124 | while (fmref_numiters-- > 0) { | ||
125 | /* The low-pass filter will need NUM_TAPS+1 items; read them if we | ||
126 | * need to. */ | ||
127 | if (fmref_fb1.rlen - fmref_fb1.rpos < NUM_TAPS + 1) | ||
128 | fmref_get_floats(&fmref_fb1); | ||
129 | fmref_run_lpf(&fmref_fb1, &fmref_fb2, &fmref_lpf_data); | ||
130 | fmref_run_demod(&fmref_fb2, &fmref_fb3); | ||
131 | fmref_run_equalizer(&fmref_fb3, &fmref_fb4, &eq_data); | ||
132 | |||
133 | } | ||
134 | } | ||
135 | |||
136 | void fmref_fb_compact(FloatBuffer *fb) | ||
137 | { | ||
138 | |||
139 | int i; | ||
140 | char *source; | ||
141 | char *target; | ||
142 | target = (char*)(fb->buff); | ||
143 | source = (char*)(fb->buff + fb->rpos); | ||
144 | _Pragma( "loopbound min 0 max 60" ) | ||
145 | for (i = 0; i < fb->rlen - fb->rpos; i++) { | ||
146 | target[i] = source[i]; | ||
147 | } | ||
148 | fb->rlen -= fb->rpos; | ||
149 | fb->rpos = 0; | ||
150 | } | ||
151 | |||
152 | int fmref_fb_ensure_writable(FloatBuffer *fb, int amount) | ||
153 | { | ||
154 | int available = IN_BUFFER_LEN - fb->rlen; | ||
155 | if (available >= amount) | ||
156 | return 1; | ||
157 | |||
158 | /* Nope, not enough room, move current contents back to the beginning. */ | ||
159 | fmref_fb_compact(fb); | ||
160 | |||
161 | available = IN_BUFFER_LEN - fb->rlen; | ||
162 | if (available >= amount) | ||
163 | return 1; | ||
164 | |||
165 | return 0; | ||
166 | } | ||
167 | |||
168 | void fmref_get_floats(FloatBuffer *fb) | ||
169 | { | ||
170 | static int x = 0; | ||
171 | fmref_fb_compact(fb); | ||
172 | |||
173 | /* Fill the remaining space in fb with 1.0. */ | ||
174 | _Pragma( "loopbound min 200 max 200" ) | ||
175 | while (fb->rlen < IN_BUFFER_LEN) { | ||
176 | fb->buff[fb->rlen++] = (float)x; | ||
177 | x++; | ||
178 | } | ||
179 | } | ||
180 | |||
181 | void fmref_init_lpf_data(LPFData *data, float freq, int taps, int decimation) | ||
182 | { | ||
183 | /* Assume that CUTOFF_FREQUENCY is non-zero. See comments in | ||
184 | * StreamIt LowPassFilter.java for origin. */ | ||
185 | float w = 2 * M_PI * freq / SAMPLING_RATE; | ||
186 | int i; | ||
187 | float m = taps - 1.0f; | ||
188 | |||
189 | data->freq = freq; | ||
190 | data->taps = taps; | ||
191 | data->decimation = decimation; | ||
192 | |||
193 | _Pragma( "loopbound min 64 max 64" ) | ||
194 | for (i = 0; i < taps; i++) { | ||
195 | if (i - m / 2 == 0.0f) | ||
196 | data->coeff[i] = w / M_PI; | ||
197 | else | ||
198 | data->coeff[i] = sin(w * (i - m / 2)) / M_PI / (i - m / 2) * | ||
199 | (0.54f - 0.46f * cos(2 * M_PI * i / m)); | ||
200 | } | ||
201 | } | ||
202 | |||
203 | void fmref_run_lpf(FloatBuffer *fbin, FloatBuffer *fbout, LPFData *data) | ||
204 | { | ||
205 | float sum = 0.0f; | ||
206 | int i = 0; | ||
207 | |||
208 | _Pragma( "loopbound min 64 max 64" ) | ||
209 | for (i = 0; i < data->taps; i++) { | ||
210 | sum += fbin->buff[fbin->rpos + i] * data->coeff[i]; | ||
211 | } | ||
212 | |||
213 | fbin->rpos += data->decimation + 1; | ||
214 | |||
215 | /* Check that there's room in the output buffer; move data if necessary. */ | ||
216 | fmref_fb_ensure_writable(fbout, 1); | ||
217 | fbout->buff[fbout->rlen++] = sum; | ||
218 | } | ||
219 | |||
220 | void fmref_run_demod(FloatBuffer *fbin, FloatBuffer *fbout) | ||
221 | { | ||
222 | float temp, gain; | ||
223 | gain = MAX_AMPLITUDE * SAMPLING_RATE / (BANDWIDTH * M_PI); | ||
224 | temp = fbin->buff[fbin->rpos] * fbin->buff[fbin->rpos + 1]; | ||
225 | temp = gain * atan(temp); | ||
226 | fbin->rpos++; | ||
227 | fmref_fb_ensure_writable(fbout, 1); | ||
228 | fbout->buff[fbout->rlen++] = temp; | ||
229 | } | ||
230 | |||
231 | void fmref_init_equalizer(EqualizerData *data) | ||
232 | { | ||
233 | int i; | ||
234 | |||
235 | /* Equalizer structure: there are ten band-pass filters, with | ||
236 | * cutoffs as shown below. The outputs of these filters get added | ||
237 | * together. Each band-pass filter is LPF(high)-LPF(low). */ | ||
238 | _Pragma( "loopbound min 11 max 11" ) | ||
239 | for (i = 0; i < EQUALIZER_BANDS + 1; i++) | ||
240 | fmref_init_lpf_data(&data->lpf[i], fmref_eq_cutoffs[i], 64, 0); | ||
241 | |||
242 | /* Also initialize member buffers. */ | ||
243 | _Pragma( "loopbound min 11 max 11" ) | ||
244 | for (i = 0; i < EQUALIZER_BANDS + 1; i++) | ||
245 | data->fb[i].rpos = data->fb[i].rlen = 0; | ||
246 | |||
247 | _Pragma( "loopbound min 10 max 10" ) | ||
248 | for (i = 0; i < EQUALIZER_BANDS; i++) { | ||
249 | // the gain amplifies the middle bands the most | ||
250 | float val = (((float)i) - (((float)(EQUALIZER_BANDS - 1)) / 2.0f)) / 5.0f; | ||
251 | data->gain[i] = val > 0 ? 2.0f - val : 2.0f + val; | ||
252 | } | ||
253 | } | ||
254 | |||
255 | void fmref_run_equalizer(FloatBuffer *fbin, FloatBuffer *fbout, EqualizerData *data) | ||
256 | { | ||
257 | int i, rpos; | ||
258 | float lpf_out[EQUALIZER_BANDS + 1]; | ||
259 | float sum = 0.0; | ||
260 | |||
261 | /* Save the input read location; we can reuse the same input data on all | ||
262 | * of the LPFs. */ | ||
263 | rpos = fbin->rpos; | ||
264 | |||
265 | /* Run the child filters. */ | ||
266 | _Pragma( "loopbound min 11 max 11" ) | ||
267 | for (i = 0; i < EQUALIZER_BANDS + 1; i++) { | ||
268 | fbin->rpos = rpos; | ||
269 | fmref_run_lpf(fbin, &data->fb[i], &data->lpf[i]); | ||
270 | lpf_out[i] = data->fb[i].buff[data->fb[i].rpos++]; | ||
271 | } | ||
272 | |||
273 | /* Now process the results of the filters. Remember that each band is | ||
274 | * output(hi)-output(lo). */ | ||
275 | _Pragma( "loopbound min 10 max 10" ) | ||
276 | for (i = 0; i < EQUALIZER_BANDS; i++) | ||
277 | sum += (lpf_out[i + 1] - lpf_out[i]) * data->gain[i]; | ||
278 | |||
279 | /* Write that result. */ | ||
280 | fmref_fb_ensure_writable(fbout, 1); | ||
281 | fbout->buff[fbout->rlen++] = sum; | ||
282 | } | ||
283 | |||
diff --git a/baseline/source/fmref/license.txt b/baseline/source/fmref/license.txt new file mode 100644 index 0000000..7029925 --- /dev/null +++ b/baseline/source/fmref/license.txt | |||
@@ -0,0 +1,21 @@ | |||
1 | The MIT License | ||
2 | |||
3 | Copyright (c) <year> <copyright holders> | ||
4 | |||
5 | Permission is hereby granted, free of charge, to any person obtaining a copy | ||
6 | of this software and associated documentation files (the "Software"), to deal | ||
7 | in the Software without restriction, including without limitation the rights | ||
8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
9 | copies of the Software, and to permit persons to whom the Software is | ||
10 | furnished to do so, subject to the following conditions: | ||
11 | |||
12 | The above copyright notice and this permission notice shall be included in | ||
13 | all copies or substantial portions of the Software. | ||
14 | |||
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
21 | THE SOFTWARE. | ||
diff --git a/baseline/source/fmref/math_private.h b/baseline/source/fmref/math_private.h new file mode 100644 index 0000000..58d4354 --- /dev/null +++ b/baseline/source/fmref/math_private.h | |||
@@ -0,0 +1,178 @@ | |||
1 | /* | ||
2 | * ==================================================== | ||
3 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
4 | * | ||
5 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
6 | * Permission to use, copy, modify, and distribute this | ||
7 | * software is freely granted, provided that this notice | ||
8 | * is preserved. | ||
9 | * ==================================================== | ||
10 | */ | ||
11 | |||
12 | /* | ||
13 | * from: @(#)fdlibm.h 5.1 93/09/24 | ||
14 | */ | ||
15 | |||
16 | #ifndef _MATH_PRIVATE_H_ | ||
17 | #define _MATH_PRIVATE_H_ | ||
18 | |||
19 | #include "wcclibm.h" | ||
20 | |||
21 | //#include <endian.h> | ||
22 | //#include <sys/types.h> | ||
23 | |||
24 | /* A representation of a double as a union. */ | ||
25 | union ieee754_double | ||
26 | { | ||
27 | double d; | ||
28 | |||
29 | /* This is the IEEE 754 double-precision format. */ | ||
30 | struct { | ||
31 | /* Together these comprise the mantissa. */ | ||
32 | unsigned int mantissa1:32; | ||
33 | unsigned int mantissa0:20; | ||
34 | unsigned int exponent:11; | ||
35 | unsigned int negative:1; | ||
36 | } ieee; | ||
37 | |||
38 | /* This format makes it easier to see if a NaN is a signalling NaN. */ | ||
39 | struct { | ||
40 | /* Together these comprise the mantissa. */ | ||
41 | unsigned int mantissa1:32; | ||
42 | unsigned int mantissa0:19; | ||
43 | unsigned int quiet_nan:1; | ||
44 | unsigned int exponent:11; | ||
45 | unsigned int negative:1; | ||
46 | } ieee_nan; | ||
47 | }; | ||
48 | |||
49 | /* The original fdlibm code used statements like: | ||
50 | n0 = ((*(int*)&one)>>29)^1; * index of high word * | ||
51 | ix0 = *(n0+(int*)&x); * high word of x * | ||
52 | ix1 = *((1-n0)+(int*)&x); * low word of x * | ||
53 | to dig two 32 bit words out of the 64 bit IEEE floating point | ||
54 | value. That is non-ANSI, and, moreover, the gcc instruction | ||
55 | scheduler gets it wrong. We instead use the following macros. | ||
56 | Unlike the original code, we determine the endianness at compile | ||
57 | time, not at run time; I don't see much benefit to selecting | ||
58 | endianness at run time. */ | ||
59 | |||
60 | /* A union which permits us to convert between a double and two 32 bit | ||
61 | ints. */ | ||
62 | |||
63 | /* #if __FLOAT_WORD_ORDER == BIG_ENDIAN */ | ||
64 | /* #warning USING Big Endian float word order */ | ||
65 | /* typedef union */ | ||
66 | /* { */ | ||
67 | /* double value; */ | ||
68 | /* struct */ | ||
69 | /* { */ | ||
70 | /* u_int16_t msw; */ | ||
71 | /* u_int16_t lsw; */ | ||
72 | /* } parts; */ | ||
73 | /* } ieeeDoubleShapeType; */ | ||
74 | |||
75 | /* #endif */ | ||
76 | |||
77 | /* #if __FLOAT_WORD_ORDER == LITTLE_ENDIAN */ | ||
78 | /* #warning USING Little Endian float word order */ | ||
79 | |||
80 | typedef union | ||
81 | { | ||
82 | double value; | ||
83 | struct | ||
84 | { | ||
85 | u_int16_t lsw; | ||
86 | u_int16_t msw; | ||
87 | } parts; | ||
88 | } ieeeDoubleShapeType; | ||
89 | |||
90 | /* #endif */ | ||
91 | |||
92 | /* Get two 32 bit ints from a double. */ | ||
93 | |||
94 | #define EXTRACT_WORDS(ix0,ix1,d) \ | ||
95 | { \ | ||
96 | ieeeDoubleShapeType ew_u; \ | ||
97 | ew_u.value = (d); \ | ||
98 | (ix0) = ew_u.parts.msw; \ | ||
99 | (ix1) = ew_u.parts.lsw; \ | ||
100 | } | ||
101 | |||
102 | /* Get the more significant 32 bit int from a double. */ | ||
103 | |||
104 | #define GET_HIGH_WORD(i,d) \ | ||
105 | { \ | ||
106 | ieeeDoubleShapeType gh_u; \ | ||
107 | gh_u.value = (d); \ | ||
108 | (i) = gh_u.parts.msw; \ | ||
109 | } | ||
110 | |||
111 | /* Get the less significant 32 bit int from a double. */ | ||
112 | |||
113 | #define GET_LOW_WORD(i,d) \ | ||
114 | { \ | ||
115 | ieeeDoubleShapeType gl_u; \ | ||
116 | gl_u.value = (d); \ | ||
117 | (i) = gl_u.parts.lsw; \ | ||
118 | } | ||
119 | |||
120 | /* Set a double from two 32 bit ints. */ | ||
121 | |||
122 | #define INSERT_WORDS(d,ix0,ix1) \ | ||
123 | { \ | ||
124 | ieeeDoubleShapeType iw_u; \ | ||
125 | iw_u.parts.msw = (ix0); \ | ||
126 | iw_u.parts.lsw = (ix1); \ | ||
127 | (d) = iw_u.value; \ | ||
128 | } | ||
129 | |||
130 | /* Set the more significant 32 bits of a double from an int. */ | ||
131 | |||
132 | #define SET_HIGH_WORD(d,v) \ | ||
133 | { \ | ||
134 | ieeeDoubleShapeType sh_u; \ | ||
135 | sh_u.value = (d); \ | ||
136 | sh_u.parts.msw = (v); \ | ||
137 | (d) = sh_u.value; \ | ||
138 | } | ||
139 | |||
140 | /* Set the less significant 32 bits of a double from an int. */ | ||
141 | |||
142 | #define SET_LOW_WORD(d,v) \ | ||
143 | { \ | ||
144 | ieeeDoubleShapeType sl_u; \ | ||
145 | sl_u.value = (d); \ | ||
146 | sl_u.parts.lsw = (v); \ | ||
147 | (d) = sl_u.value; \ | ||
148 | } | ||
149 | |||
150 | /* A union which permits us to convert between a float and a 32 bit | ||
151 | int. */ | ||
152 | |||
153 | typedef union | ||
154 | { | ||
155 | float value; | ||
156 | u_int32_t word; | ||
157 | } ieee_float_shape_type; | ||
158 | |||
159 | /* Get a 32 bit int from a float. */ | ||
160 | |||
161 | #define GET_FLOAT_WORD(i,d) \ | ||
162 | { \ | ||
163 | ieee_float_shape_type gf_u; \ | ||
164 | gf_u.value = (d); \ | ||
165 | (i) = gf_u.word; \ | ||
166 | } | ||
167 | |||
168 | /* Set a float from a 32 bit int. */ | ||
169 | |||
170 | #define SET_FLOAT_WORD(d,i) \ | ||
171 | { \ | ||
172 | ieee_float_shape_type sf_u; \ | ||
173 | sf_u.word = (i); \ | ||
174 | (d) = sf_u.value; \ | ||
175 | } | ||
176 | |||
177 | |||
178 | #endif /* _MATH_PRIVATE_H_ */ | ||
diff --git a/baseline/source/fmref/wcclibm.c b/baseline/source/fmref/wcclibm.c new file mode 100644 index 0000000..39b8cbe --- /dev/null +++ b/baseline/source/fmref/wcclibm.c | |||
@@ -0,0 +1,522 @@ | |||
1 | #include "math_private.h" | ||
2 | #include "wcclibm.h" | ||
3 | |||
4 | |||
5 | |||
6 | /* e_rem_pio2f.c -- float version of e_rem_pio2.c | ||
7 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. | ||
8 | */ | ||
9 | |||
10 | /* | ||
11 | * ==================================================== | ||
12 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
13 | * | ||
14 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
15 | * Permission to use, copy, modify, and distribute this | ||
16 | * software is freely granted, provided that this notice | ||
17 | * is preserved. | ||
18 | * ==================================================== | ||
19 | */ | ||
20 | |||
21 | #if defined(LIBM_SCCS) && !defined(lint) | ||
22 | static char rcsid[] = "$NetBSD: e_rem_pio2f.c,v 1.5 1995/05/10 20:46:03 jtc Exp $"; | ||
23 | #endif | ||
24 | |||
25 | /* __ieee754_rem_pio2f(x,y) | ||
26 | * | ||
27 | * return the remainder of x rem pi/2 in y[0]+y[1] | ||
28 | * use __kernel_rem_pio2f() | ||
29 | */ | ||
30 | |||
31 | /* This array is like the one in e_rem_pio2.c, but the numbers are | ||
32 | single precision and the last 8 bits are forced to 0. */ | ||
33 | #ifdef __STDC__ | ||
34 | static const int32_t fmref_npio2_hw[] = { | ||
35 | #else | ||
36 | static int32_t fmref_npio2_hw[] = { | ||
37 | #endif | ||
38 | 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, | ||
39 | 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, | ||
40 | 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, | ||
41 | 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, | ||
42 | 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, | ||
43 | 0x4242c700, 0x42490f00 | ||
44 | }; | ||
45 | |||
46 | /* | ||
47 | * invpio2: 24 bits of 2/pi | ||
48 | * pio2_1: first 17 bit of pi/2 | ||
49 | * pio2_1t: pi/2 - pio2_1 | ||
50 | * pio2_2: second 17 bit of pi/2 | ||
51 | * pio2_2t: pi/2 - (pio2_1+pio2_2) | ||
52 | * pio2_3: third 17 bit of pi/2 | ||
53 | * pio2_3t: pi/2 - (pio2_1+pio2_2+pio2_3) | ||
54 | */ | ||
55 | |||
56 | #ifdef __STDC__ | ||
57 | static const float | ||
58 | #else | ||
59 | static float | ||
60 | #endif | ||
61 | /* zero = 0.0000000000e+00f, /\* 0x00000000 *\/ */ | ||
62 | /* half = 5.0000000000e-01f, /\* 0x3f000000 *\/ */ | ||
63 | /* two8 = 2.5600000000e+02f, /\* 0x43800000 *\/ */ | ||
64 | fmref_invpio2 = 6.3661980629e-01f, /* 0x3f22f984 */ | ||
65 | fmref_pio2_1 = 1.5707855225e+00f, /* 0x3fc90f80 */ | ||
66 | fmref_pio2_1t = 1.0804334124e-05f, /* 0x37354443 */ | ||
67 | fmref_pio2_2 = 1.0804273188e-05f, /* 0x37354400 */ | ||
68 | fmref_pio2_2t = 6.0770999344e-11f, /* 0x2e85a308 */ | ||
69 | fmref_pio2_3 = 6.0770943833e-11f, /* 0x2e85a300 */ | ||
70 | fmref_pio2_3t = 6.1232342629e-17f; /* 0x248d3132 */ | ||
71 | |||
72 | #ifdef __STDC__ | ||
73 | int32_t fmref___ieee754_rem_pio2f(float x, float *y) | ||
74 | #else | ||
75 | int32_t fmref___ieee754_rem_pio2f(x,y) | ||
76 | float x,y[]; | ||
77 | #endif | ||
78 | { | ||
79 | float z,w,t,r,fn; | ||
80 | int32_t i,j,n,ix,hx; | ||
81 | |||
82 | GET_FLOAT_WORD(hx,x); | ||
83 | ix = hx&0x7fffffff; | ||
84 | if(ix<=0x3f490fd8) /* |x| ~<= pi/4 , no need for reduction */ | ||
85 | {y[0] = x; y[1] = 0; return 0;} | ||
86 | if(ix<0x4016cbe4) { /* |x| < 3pi/4, special case with n=+-1 */ | ||
87 | if(hx>0) { | ||
88 | z = x - fmref_pio2_1; | ||
89 | if((ix&0xfffffff0)!=0x3fc90fd0) { /* 24+24 bit pi OK */ | ||
90 | y[0] = z - fmref_pio2_1t; | ||
91 | y[1] = (z-y[0])-fmref_pio2_1t; | ||
92 | } else { /* near pi/2, use 24+24+24 bit pi */ | ||
93 | z -= fmref_pio2_2; | ||
94 | y[0] = z - fmref_pio2_2t; | ||
95 | y[1] = (z-y[0])-fmref_pio2_2t; | ||
96 | } | ||
97 | return 1; | ||
98 | } else { /* negative x */ | ||
99 | z = x + fmref_pio2_1; | ||
100 | if((ix&0xfffffff0)!=0x3fc90fd0) { /* 24+24 bit pi OK */ | ||
101 | y[0] = z + fmref_pio2_1t; | ||
102 | y[1] = (z-y[0])+fmref_pio2_1t; | ||
103 | } else { /* near pi/2, use 24+24+24 bit pi */ | ||
104 | z += fmref_pio2_2; | ||
105 | y[0] = z + fmref_pio2_2t; | ||
106 | y[1] = (z-y[0])+fmref_pio2_2t; | ||
107 | } | ||
108 | return -1; | ||
109 | } | ||
110 | } | ||
111 | if(ix<=0x43490f80) { /* |x| ~<= 2^7*(pi/2), medium size */ | ||
112 | t = fabsf(x); | ||
113 | n = (int32_t) (t*fmref_invpio2+fmref_half); | ||
114 | fn = (float)n; | ||
115 | r = t-fn*fmref_pio2_1; | ||
116 | w = fn*fmref_pio2_1t; /* 1st round good to 40 bit */ | ||
117 | if(n<32&&(int32_t)(ix&0xffffff00)!=fmref_npio2_hw[n-1]) { | ||
118 | y[0] = r-w; /* quick check no cancellation */ | ||
119 | } else { | ||
120 | u_int32_t high; | ||
121 | j = ix>>23; | ||
122 | y[0] = r-w; | ||
123 | GET_FLOAT_WORD(high,y[0]); | ||
124 | i = j-((high>>23)&0xff); | ||
125 | if(i>8) { /* 2nd iteration needed, good to 57 */ | ||
126 | t = r; | ||
127 | w = fn*fmref_pio2_2; | ||
128 | r = t-w; | ||
129 | w = fn*fmref_pio2_2t-((t-r)-w); | ||
130 | y[0] = r-w; | ||
131 | GET_FLOAT_WORD(high,y[0]); | ||
132 | i = j-((high>>23)&0xff); | ||
133 | if(i>25) { /* 3rd iteration need, 74 bits acc */ | ||
134 | t = r; /* will cover all possible cases */ | ||
135 | w = fn*fmref_pio2_3; | ||
136 | r = t-w; | ||
137 | w = fn*fmref_pio2_3t-((t-r)-w); | ||
138 | y[0] = r-w; | ||
139 | } | ||
140 | } | ||
141 | } | ||
142 | y[1] = (r-y[0])-w; | ||
143 | if(hx<0) {y[0] = -y[0]; y[1] = -y[1]; return -n;} | ||
144 | else return n; | ||
145 | } | ||
146 | /* | ||
147 | * all other (large) arguments | ||
148 | */ | ||
149 | if(ix>=0x7f800000) { /* x is inf or NaN */ | ||
150 | y[0]=y[1]=x-x; return 0; | ||
151 | } | ||
152 | |||
153 | y[0]=y[1]=x-x; /* dummy initialization */ | ||
154 | return 0; /* doesn't happen for our input */ | ||
155 | } | ||
156 | |||
157 | /* k_cosf.c -- float version of k_cos.c | ||
158 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. | ||
159 | */ | ||
160 | |||
161 | /* | ||
162 | * ==================================================== | ||
163 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
164 | * | ||
165 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
166 | * Permission to use, copy, modify, and distribute this | ||
167 | * software is freely granted, provided that this notice | ||
168 | * is preserved. | ||
169 | * ==================================================== | ||
170 | */ | ||
171 | |||
172 | #if defined(LIBM_SCCS) && !defined(lint) | ||
173 | static char rcsid[] = "$NetBSD: k_cosf.c,v 1.4 1995/05/10 20:46:23 jtc Exp $"; | ||
174 | #endif | ||
175 | |||
176 | |||
177 | #ifdef __STDC__ | ||
178 | static const float | ||
179 | #else | ||
180 | static float | ||
181 | #endif | ||
182 | /* one = 1.0000000000e+00, /\* 0x3f800000 *\/ */ | ||
183 | fmref_C1 = 4.1666667908e-02f, /* 0x3d2aaaab */ | ||
184 | fmref_C2 = -1.3888889225e-03f, /* 0xbab60b61 */ | ||
185 | fmref_C3 = 2.4801587642e-05f, /* 0x37d00d01 */ | ||
186 | fmref_C4 = -2.7557314297e-07f, /* 0xb493f27c */ | ||
187 | fmref_C5 = 2.0875723372e-09f, /* 0x310f74f6 */ | ||
188 | fmref_C6 = -1.1359647598e-11f; /* 0xad47d74e */ | ||
189 | |||
190 | #ifdef __STDC__ | ||
191 | float fmref___kernel_cosf(float x, float y) | ||
192 | #else | ||
193 | float fmref___kernel_cosf(x, y) | ||
194 | float x,y; | ||
195 | #endif | ||
196 | { | ||
197 | float a,hz,z,r,qx; | ||
198 | int32_t ix; | ||
199 | GET_FLOAT_WORD(ix,x); | ||
200 | ix &= 0x7fffffff; /* ix = |x|'s high word*/ | ||
201 | if(ix<0x32000000) { /* if x < 2**27 */ | ||
202 | if(((int)x)==0) return fmref_one; /* generate inexact */ | ||
203 | } | ||
204 | z = x*x; | ||
205 | r = z*(fmref_C1+z*(fmref_C2+z*(fmref_C3+z*(fmref_C4+z*(fmref_C5+z*fmref_C6))))); | ||
206 | if(ix < 0x3e99999a) /* if |x| < 0.3 */ | ||
207 | return fmref_one - ((float)0.5f*z - (z*r - x*y)); | ||
208 | else { | ||
209 | if(ix > 0x3f480000) { /* x > 0.78125 */ | ||
210 | qx = (float)0.28125f; | ||
211 | } else { | ||
212 | SET_FLOAT_WORD(qx,ix-0x01000000); /* x/4 */ | ||
213 | } | ||
214 | hz = (float)0.5f*z-qx; | ||
215 | a = fmref_one-qx; | ||
216 | return a - (hz - (z*r-x*y)); | ||
217 | } | ||
218 | } | ||
219 | |||
220 | /* k_sinf.c -- float version of k_sin.c | ||
221 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. | ||
222 | */ | ||
223 | |||
224 | /* | ||
225 | * ==================================================== | ||
226 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
227 | * | ||
228 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
229 | * Permission to use, copy, modify, and distribute this | ||
230 | * software is freely granted, provided that this notice | ||
231 | * is preserved. | ||
232 | * ==================================================== | ||
233 | */ | ||
234 | |||
235 | #if defined(LIBM_SCCS) && !defined(lint) | ||
236 | static char rcsid[] = "$NetBSD: k_sinf.c,v 1.4 1995/05/10 20:46:33 jtc Exp $"; | ||
237 | #endif | ||
238 | |||
239 | |||
240 | #ifdef __STDC__ | ||
241 | static const float | ||
242 | #else | ||
243 | static float | ||
244 | #endif | ||
245 | /* half = 5.0000000000e-01f,/\* 0x3f000000 *\/ */ | ||
246 | fmref_S1 = -1.6666667163e-01f, /* 0xbe2aaaab */ | ||
247 | fmref_S2 = 8.3333337680e-03f, /* 0x3c088889 */ | ||
248 | fmref_S3 = -1.9841270114e-04f, /* 0xb9500d01 */ | ||
249 | fmref_S4 = 2.7557314297e-06f, /* 0x3638ef1b */ | ||
250 | fmref_S5 = -2.5050759689e-08f, /* 0xb2d72f34 */ | ||
251 | fmref_S6 = 1.5896910177e-10f; /* 0x2f2ec9d3 */ | ||
252 | |||
253 | #ifdef __STDC__ | ||
254 | float fmref___kernel_sinf(float x, float y, int iy) | ||
255 | #else | ||
256 | float fmref___kernel_sinf(x, y, iy) | ||
257 | float x,y; int iy; /* iy=0 if y is zero */ | ||
258 | #endif | ||
259 | { | ||
260 | float z,r,v; | ||
261 | int32_t ix; | ||
262 | GET_FLOAT_WORD(ix,x); | ||
263 | ix &= 0x7fffffff; /* high word of x */ | ||
264 | if(ix<0x32000000) /* |x| < 2**-27 */ | ||
265 | {if((int)x==0) return x;} /* generate inexact */ | ||
266 | z = x*x; | ||
267 | v = z*x; | ||
268 | r = fmref_S2+z*(fmref_S3+z*(fmref_S4+z*(fmref_S5+z*fmref_S6))); | ||
269 | if(iy==0) return x+v*(fmref_S1+z*r); | ||
270 | else return x-((z*(fmref_half*y-v*r)-y)-v*fmref_S1); | ||
271 | } | ||
272 | /* s_atanf.c -- float version of s_atan.c. | ||
273 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. | ||
274 | */ | ||
275 | |||
276 | /* | ||
277 | * ==================================================== | ||
278 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
279 | * | ||
280 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
281 | * Permission to use, copy, modify, and distribute this | ||
282 | * software is freely granted, provided that this notice | ||
283 | * is preserved. | ||
284 | * ==================================================== | ||
285 | */ | ||
286 | |||
287 | #if defined(LIBM_SCCS) && !defined(lint) | ||
288 | static char rcsid[] = "$NetBSD: s_atanf.c,v 1.4 1995/05/10 20:46:47 jtc Exp $"; | ||
289 | #endif | ||
290 | |||
291 | |||
292 | #ifdef __STDC__ | ||
293 | static const float fmref_atanhi[] = { | ||
294 | #else | ||
295 | static float fmref_atanhi[] = { | ||
296 | #endif | ||
297 | 4.6364760399e-01f, /* atan(0.5)hi 0x3eed6338 */ | ||
298 | 7.8539812565e-01f, /* atan(1.0)hi 0x3f490fda */ | ||
299 | 9.8279368877e-01f, /* atan(1.5)hi 0x3f7b985e */ | ||
300 | 1.5707962513e+00f, /* atan(inf)hi 0x3fc90fda */ | ||
301 | }; | ||
302 | |||
303 | #ifdef __STDC__ | ||
304 | static const float fmref_atanlo[] = { | ||
305 | #else | ||
306 | static float fmref_atanlo[] = { | ||
307 | #endif | ||
308 | 5.0121582440e-09f, /* atan(0.5)lo 0x31ac3769 */ | ||
309 | 3.7748947079e-08f, /* atan(1.0)lo 0x33222168 */ | ||
310 | 3.4473217170e-08f, /* atan(1.5)lo 0x33140fb4 */ | ||
311 | 7.5497894159e-08f, /* atan(inf)lo 0x33a22168 */ | ||
312 | }; | ||
313 | |||
314 | #ifdef __STDC__ | ||
315 | static const float fmref_aT[] = { | ||
316 | #else | ||
317 | static float fmref_aT[] = { | ||
318 | #endif | ||
319 | 3.3333334327e-01f, /* 0x3eaaaaaa */ | ||
320 | -2.0000000298e-01f, /* 0xbe4ccccd */ | ||
321 | 1.4285714924e-01f, /* 0x3e124925 */ | ||
322 | -1.1111110449e-01f, /* 0xbde38e38 */ | ||
323 | 9.0908870101e-02f, /* 0x3dba2e6e */ | ||
324 | -7.6918758452e-02f, /* 0xbd9d8795 */ | ||
325 | 6.6610731184e-02f, /* 0x3d886b35 */ | ||
326 | -5.8335702866e-02f, /* 0xbd6ef16b */ | ||
327 | 4.9768779427e-02f, /* 0x3d4bda59 */ | ||
328 | -3.6531571299e-02f, /* 0xbd15a221 */ | ||
329 | 1.6285819933e-02f, /* 0x3c8569d7 */ | ||
330 | }; | ||
331 | |||
332 | /* #ifdef __STDC__ */ | ||
333 | /* static const float */ | ||
334 | /* #else */ | ||
335 | /* static float */ | ||
336 | /* #endif */ | ||
337 | /* one = 1.0, */ | ||
338 | /* huge = 1.0e30; */ | ||
339 | |||
340 | #ifdef __STDC__ | ||
341 | float fmref___atanf(float x) | ||
342 | #else | ||
343 | float fmref___atanf(x) | ||
344 | float x; | ||
345 | #endif | ||
346 | { | ||
347 | float w,s1,s2,z; | ||
348 | int32_t ix,hx,id; | ||
349 | |||
350 | GET_FLOAT_WORD(hx,x); | ||
351 | ix = hx&0x7fffffff; | ||
352 | if(ix>=0x50800000) { /* if |x| >= 2^34 */ | ||
353 | if(ix>0x7f800000) | ||
354 | return x+x; /* NaN */ | ||
355 | if(hx>0) return fmref_atanhi[3]+fmref_atanlo[3]; | ||
356 | else return -fmref_atanhi[3]-fmref_atanlo[3]; | ||
357 | } if (ix < 0x3ee00000) { /* |x| < 0.4375 */ | ||
358 | if (ix < 0x31000000) { /* |x| < 2^-29 */ | ||
359 | if(fmref_huge+x>fmref_one) return x; /* raise inexact */ | ||
360 | } | ||
361 | id = -1; | ||
362 | } else { | ||
363 | x = fabsf(x); | ||
364 | if (ix < 0x3f980000) { /* |x| < 1.1875 */ | ||
365 | if (ix < 0x3f300000) { /* 7/16 <=|x|<11/16 */ | ||
366 | id = 0; x = ((float)2.0f*x-fmref_one)/((float)2.0f+x); | ||
367 | } else { /* 11/16<=|x|< 19/16 */ | ||
368 | id = 1; x = (x-fmref_one)/(x+fmref_one); | ||
369 | } | ||
370 | } else { | ||
371 | if (ix < 0x401c0000) { /* |x| < 2.4375 */ | ||
372 | id = 2; x = (x-(float)1.5f)/(fmref_one+(float)1.5f*x); | ||
373 | } else { /* 2.4375 <= |x| < 2^66 */ | ||
374 | id = 3; x = -(float)1.0f/x; | ||
375 | } | ||
376 | }} | ||
377 | /* end of argument reduction */ | ||
378 | z = x*x; | ||
379 | w = z*z; | ||
380 | /* break sum from i=0 to 10 aT[i]z**(i+1) into odd and even poly */ | ||
381 | s1 = z*(fmref_aT[0]+w*(fmref_aT[2]+w*(fmref_aT[4]+w*(fmref_aT[6]+w*(fmref_aT[8]+w*fmref_aT[10]))))); | ||
382 | s2 = w*(fmref_aT[1]+w*(fmref_aT[3]+w*(fmref_aT[5]+w*(fmref_aT[7]+w*fmref_aT[9])))); | ||
383 | if (id<0) return x - x*(s1+s2); | ||
384 | else { | ||
385 | z = fmref_atanhi[id] - ((x*(s1+s2) - fmref_atanlo[id]) - x); | ||
386 | return (hx<0)? -z:z; | ||
387 | } | ||
388 | } | ||
389 | //weak_alias (__atanf, atanf) | ||
390 | |||
391 | /* s_cosf.c -- float version of s_cos.c. | ||
392 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. | ||
393 | */ | ||
394 | |||
395 | /* | ||
396 | * ==================================================== | ||
397 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
398 | * | ||
399 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
400 | * Permission to use, copy, modify, and distribute this | ||
401 | * software is freely granted, provided that this notice | ||
402 | * is preserved. | ||
403 | * ==================================================== | ||
404 | */ | ||
405 | |||
406 | /* #ifdef __STDC__ */ | ||
407 | /* static const float one=1.0; */ | ||
408 | /* #else */ | ||
409 | /* static float one=1.0; */ | ||
410 | /* #endif */ | ||
411 | |||
412 | #ifdef __STDC__ | ||
413 | float fmref___cosf(float x) | ||
414 | #else | ||
415 | float fmref___cosf(x) | ||
416 | float x; | ||
417 | #endif | ||
418 | { | ||
419 | float y[2],z=0.0f; | ||
420 | int32_t n,ix; | ||
421 | |||
422 | GET_FLOAT_WORD(ix,x); | ||
423 | |||
424 | /* |x| ~< pi/4 */ | ||
425 | ix &= 0x7fffffff; | ||
426 | if(ix <= 0x3f490fd8) return fmref___kernel_cosf(x,z); | ||
427 | |||
428 | /* cos(Inf or NaN) is NaN */ | ||
429 | else if (ix>=0x7f800000) return x-x; | ||
430 | |||
431 | /* argument reduction needed */ | ||
432 | else { | ||
433 | n = fmref___ieee754_rem_pio2f(x,y); | ||
434 | switch(n&3) { | ||
435 | case 0: return fmref___kernel_cosf(y[0],y[1]); | ||
436 | case 1: return -fmref___kernel_sinf(y[0],y[1],1); | ||
437 | case 2: return -fmref___kernel_cosf(y[0],y[1]); | ||
438 | default: | ||
439 | return fmref___kernel_sinf(y[0],y[1],1); | ||
440 | } | ||
441 | } | ||
442 | } | ||
443 | |||
444 | /* s_sinf.c -- float version of s_sin.c. | ||
445 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. | ||
446 | */ | ||
447 | |||
448 | /* | ||
449 | * ==================================================== | ||
450 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
451 | * | ||
452 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
453 | * Permission to use, copy, modify, and distribute this | ||
454 | * software is freely granted, provided that this notice | ||
455 | * is preserved. | ||
456 | * ==================================================== | ||
457 | */ | ||
458 | |||
459 | #ifdef __STDC__ | ||
460 | float fmref___sinf(float x) | ||
461 | #else | ||
462 | float fmref___sinf(x) | ||
463 | float x; | ||
464 | #endif | ||
465 | { | ||
466 | float y[2],z=0.0; | ||
467 | int32_t n, ix; | ||
468 | |||
469 | GET_FLOAT_WORD(ix,x); | ||
470 | |||
471 | /* |x| ~< pi/4 */ | ||
472 | ix &= 0x7fffffff; | ||
473 | if(ix <= 0x3f490fd8) return fmref___kernel_sinf(x,z,0); | ||
474 | |||
475 | /* sin(Inf or NaN) is NaN */ | ||
476 | else if (ix>=0x7f800000) return x-x; | ||
477 | |||
478 | /* argument reduction needed */ | ||
479 | else { | ||
480 | n = fmref___ieee754_rem_pio2f(x,y); | ||
481 | switch(n&3) { | ||
482 | case 0: return fmref___kernel_sinf(y[0],y[1],1); | ||
483 | case 1: return fmref___kernel_cosf(y[0],y[1]); | ||
484 | case 2: return -fmref___kernel_sinf(y[0],y[1],1); | ||
485 | default: | ||
486 | return -fmref___kernel_cosf(y[0],y[1]); | ||
487 | } | ||
488 | } | ||
489 | } | ||
490 | |||
491 | /* s_fabsf.c -- float version of s_fabs.c. | ||
492 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. | ||
493 | */ | ||
494 | |||
495 | /* | ||
496 | * ==================================================== | ||
497 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
498 | * | ||
499 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
500 | * Permission to use, copy, modify, and distribute this | ||
501 | * software is freely granted, provided that this notice | ||
502 | * is preserved. | ||
503 | * ==================================================== | ||
504 | */ | ||
505 | |||
506 | /* | ||
507 | * fabsf(x) returns the absolute value of x. | ||
508 | */ | ||
509 | |||
510 | |||
511 | #ifdef __STDC__ | ||
512 | float fmref___fabsf(float x) | ||
513 | #else | ||
514 | float fmref___fabsf(x) | ||
515 | float x; | ||
516 | #endif | ||
517 | { | ||
518 | u_int32_t ix; | ||
519 | GET_FLOAT_WORD(ix,x); | ||
520 | SET_FLOAT_WORD(x,ix&0x7fffffff); | ||
521 | return x; | ||
522 | } | ||
diff --git a/baseline/source/fmref/wcclibm.h b/baseline/source/fmref/wcclibm.h new file mode 100644 index 0000000..c00738b --- /dev/null +++ b/baseline/source/fmref/wcclibm.h | |||
@@ -0,0 +1,54 @@ | |||
1 | #ifndef _WCCLIBM | ||
2 | #define _WCCLIBM | ||
3 | |||
4 | #define size_x unsigned long | ||
5 | #define int32_t int | ||
6 | #define uint32_t unsigned int | ||
7 | #define u_int16_t unsigned short | ||
8 | #define u_int32_t unsigned int | ||
9 | |||
10 | // Often used variables/consts | ||
11 | #ifdef __STDC__ | ||
12 | static const float | ||
13 | #else | ||
14 | static float | ||
15 | #endif | ||
16 | fmref_one = 1.0f, | ||
17 | fmref_half = 5.0000000000e-01f, /* 0x3f000000 */ | ||
18 | fmref_zero = 0.0f, | ||
19 | fmref_huge = 1.0e30, | ||
20 | fmref_two8 = 2.5600000000e+02f, /* 0x43800000 */ | ||
21 | fmref_twon8 = 3.9062500000e-03f; /* 0x3b800000 */ | ||
22 | |||
23 | // The following defines map the math functions to specialized calls | ||
24 | #define acos fmref___ieee754_acosf | ||
25 | #define atan fmref___atanf | ||
26 | #define cos fmref___cosf | ||
27 | #define fabs fmref___fabsf | ||
28 | #define fabsf fmref___fabsf | ||
29 | #define isinf fmref___isinff | ||
30 | #define pow fmref___ieee754_powf | ||
31 | #define sqrt fmref___ieee754_sqrtf | ||
32 | #define log10 fmref___ieee754_log10f | ||
33 | #define log fmref___ieee754_logf | ||
34 | #define sin fmref___sinf | ||
35 | |||
36 | float fmref___atanf(float x); | ||
37 | float fmref___copysignf(float x, float y); | ||
38 | float fmref___cosf(float x); | ||
39 | float fmref___fabsf(float x); | ||
40 | float fmref___floorf(float x); | ||
41 | float fmref___ieee754_acosf(float x); | ||
42 | float fmref___ieee754_powf(float x, float y); | ||
43 | int32_t fmref___ieee754_rem_pio2f(float x, float *y); | ||
44 | float fmref___ieee754_sqrtf(float x); | ||
45 | int fmref___isinff (float x); | ||
46 | float fmref___kernel_cosf(float x, float y); | ||
47 | float fmref___kernel_sinf(float x, float y, int iy); | ||
48 | int fmref___kernel_rem_pio2f(float *x, float *y, int e0, int nx, int prec, const int32_t *ipio2); | ||
49 | float fmref___scalbnf (float x, int n); | ||
50 | float fmref___ieee754_logf(float x); | ||
51 | float fmref___ieee754_log10f(float x); | ||
52 | float fmref___sinf(float x); | ||
53 | |||
54 | #endif // _WCCLIBM | ||