-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathfpu.c
More file actions
286 lines (261 loc) · 7.36 KB
/
fpu.c
File metadata and controls
286 lines (261 loc) · 7.36 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
/**
******************************************************************************
* @file Test01/fpu.c
* @author Goofie 31
* @version V1.0.0
* @date 03-December-2011
* @brief FPU test
******************************************************************************
*/
#include "fpu.h"
#include "main.h"
#include "ILI9325.h"
#include "AsciiLib.h"
#if __FPU_USED == 1
__attribute__((always_inline)) static float inline vsqrtf(float op1) {
float result;
__asm volatile ("vsqrt.f32 %0, %1" : "=w" (result) : "w" (op1) );
return (result);
}
__attribute__((always_inline)) static float inline vabsf(float op1) {
float result;
__asm volatile ("vabs.f32 %0, %1" : "=w" (result) : "w" (op1) );
return (result);
}
#endif
void testFPU(void) {
uint32_t time;
uint32_t count = 60000;
char text[] = "Test of FPU unit\0";
char text1[] = " computations\0";
uint16_t posY = 20;
LCD_Clear(0xff, 0xff, 0xff);
LCD_SetTextColor(0x00, 0x00, 0x00);
LCD_SetBackColor(0xff, 0xff, 0xff);
LCD_CharSize(16);
LCD_StringLine(120 - ((sizeof text - 1) * 8) / 2, posY, text);
posY += 20;
getDecimalFromShort((char*) text1, (unsigned short) (count));
LCD_StringLine(120 - ((sizeof text1 - 1) * 8) / 2, posY, text1);
posY += 20;
#if __FPU_USED == 1
LCD_StringLine(120 - (8 * 8) / 2, posY, "With FPU\0");
#else
LCD_StringLine(120 - (6 * 8) / 2, posY, "No FPU\0");
#endif
posY += 40;
time = GetTicks();
testFPUAdd(count);
time = (GetTicks() - time) / 10;
LCD_StringLine(20, posY, "Add : ");
displayTime(150, posY, time, 0x00, 0xffffff);
time = GetTicks();
testFPUMult(count);
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Multiply : ");
displayTime(150, posY, time, 0x00, 0xffffff);
time = GetTicks();
testFPUDiv(count);
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Divide : ");
displayTime(150, posY, time, 0x00, 0xffffff);
time = GetTicks();
testFPUSqrtf(count);
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Sqr : ");
displayTime(150, posY, time, 0x00, 0xffffff);
time = GetTicks();
#if __FPU_USED == 1
testFPUVsqrtf(count);
#endif
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Sqr assembly : ");
#if __FPU_USED == 1
displayTime(150, posY, time, 0x00, 0xffffff);
#else
LCD_StringLine(150, posY, " N/A\0");
#endif
time = GetTicks();
testFPUSinf(count);
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Sinus : ");
displayTime(150, posY, time, 0x00, 0xffffff);
time = GetTicks();
testFPUCosf(count);
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Cosinus : ");
displayTime(150, posY, time, 0x00, 0xffffff);
time = GetTicks();
testFPULogf(count);
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Log : ");
displayTime(150, posY, time, 0x00, 0xffffff);
time = GetTicks();
testFPULnf(count);
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Ln : ");
displayTime(150, posY, time, 0x00, 0xffffff);
time = GetTicks();
#if __FPU_USED == 1
testFPUVabsf(count);
#endif
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Abs assembly : ");
#if __FPU_USED == 1
displayTime(150, posY, time, 0x00, 0xffffff);
#else
LCD_StringLine(150, posY, " N/A\0");
#endif
time = GetTicks();
testFPUAbsf(count);
time = (GetTicks() - time) / 10;
posY += 20;
LCD_StringLine(20, posY, "Abs : ");
displayTime(150, posY, time, 0x00, 0xffffff);
Delay_ms(imageDelay);
}
float testFPUCosf(uint32_t count) {
float resultat1=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 += cosf(i);
}
return resultat1;
}
float testFPUSinf(uint32_t count) {
float resultat1=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 += sinf(i);
}
return resultat1;
}
float testFPUMult(uint32_t count) {
float resultat1=0, resultat2=0, resultat3=0, resultat4=0, resultat5=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 = i;
resultat2 += resultat1 * resultat1;
resultat3 += resultat1 * resultat2;
resultat4 += resultat2 * resultat3;
resultat5 += resultat3 * resultat4;
}
return resultat5;
}
float testFPUDiv(uint32_t count) {
float resultat1=0, resultat2=0, resultat3=0, resultat4=0, resultat5=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 = i;
resultat2 += (i + resultat1) / resultat1;
resultat3 += resultat1 / resultat2;
resultat4 += resultat2 / resultat3;
resultat5 += resultat3 / resultat4;
}
return resultat5;
}
float testFPUVsqrtf(uint32_t count) {
float resultat1=0, resultat2=0, resultat3=0, resultat4=0, resultat5=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 += vsqrtf(i);
resultat2 += vsqrtf(resultat1);
resultat3 += vsqrtf(resultat2);
resultat4 += vsqrtf(resultat3);
resultat5 += vsqrtf(resultat4);
}
return resultat5;
}
float testFPUSqrtf(uint32_t count) {
float resultat1=0, resultat2=0, resultat3=0, resultat4=0, resultat5=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 += sqrtf(i);
resultat2 += sqrtf(resultat1);
resultat3 += sqrtf(resultat2);
resultat4 += sqrtf(resultat3);
resultat5 += sqrtf(resultat4);
}
return resultat5;
}
float testFPUAdd(uint32_t count) {
float resultat1=0, resultat2=0, resultat3=0, resultat4=0, resultat5=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 += i;
resultat2 += resultat1;
resultat3 += resultat1 + resultat2;
resultat4 += resultat1 + resultat2 + resultat3;
resultat5 += resultat1 + resultat2 + resultat3 + resultat4;
}
return resultat5;
}
float testFPULogf(uint32_t count) {
float resultat1=0, resultat2=0, resultat3=0, resultat4=0, resultat5=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 += log10f(i);
resultat2 += log10f(resultat1);
resultat3 += log10f(resultat2);
resultat4 += log10f(resultat3);
resultat5 += log10f(resultat4);
}
return resultat5;
}
float testFPULnf(uint32_t count) {
float resultat1=0, resultat2=0, resultat3=0, resultat4=0, resultat5=0;
volatile float i;
for (i = 0; i < count; i++) {
resultat1 += logf((float) i);
resultat2 += logf(resultat1);
resultat3 += logf(resultat2);
resultat4 += logf(resultat3);
resultat5 += logf(resultat4);
}
return resultat5;
}
float testFPUAbsf(uint32_t count) {
volatile float i;
volatile float counter = -count;
float resultat=0;
for (i = 0; i > counter; i--) {
resultat += fabsf(i++);
resultat += fabsf(i--);
resultat += fabsf(i++);
resultat += fabsf(i--);
resultat += fabsf(i++);
resultat += fabsf(i--);
resultat += fabsf(i++);
resultat += fabsf(i--);
resultat += fabsf(i++);
resultat += fabsf(i--);
}
return resultat;
}
float testFPUVabsf(uint32_t count) {
volatile float i;
volatile float counter = -count;
float resultat=0;
for (i = 0; i > counter; i--) {
resultat += vabsf((float) i++);
resultat += vabsf((float) i--);
resultat += vabsf((float) i++);
resultat += vabsf((float) i--);
resultat += vabsf((float) i++);
resultat += vabsf((float) i--);
resultat += vabsf((float) i++);
resultat += vabsf((float) i--);
resultat += vabsf((float) i++);
resultat += vabsf((float) i--);
}
return resultat;
}