1 extern void abort (void);
2
3 typedef signed short int16_t;
4 typedef unsigned short uint16_t;
5
6 int16_t logadd (int16_t *a, int16_t *b);
7 void ba_compute_psd (int16_t start);
8
9 int16_t masktab[6] = { 1, 2, 3, 4, 5};
10 int16_t psd[6] = { 50, 40, 30, 20, 10};
11 int16_t bndpsd[6] = { 1, 2, 3, 4, 5};
12
ba_compute_psd(int16_t start)13 void ba_compute_psd (int16_t start)
14 {
15 int i,j,k;
16 int16_t lastbin = 4;
17
18 j = start;
19 k = masktab[start];
20
21 bndpsd[k] = psd[j];
22 j++;
23
24 for (i = j; i < lastbin; i++) {
25 bndpsd[k] = logadd(&bndpsd[k], &psd[j]);
26 j++;
27 }
28 }
29
logadd(int16_t * a,int16_t * b)30 int16_t logadd (int16_t *a, int16_t *b)
31 {
32 return *a + *b;
33 }
34
main(void)35 int main (void)
36 {
37 int i;
38
39 ba_compute_psd (0);
40
41 if (bndpsd[1] != 140) abort ();
42 return 0;
43 }
44
45