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#include "project.h"
static void msf_set_ident (uint8_t *i)
{
i[0] = 0;
i[1] = 1;
i[2] = 1;
i[3] = 1;
i[4] = 1;
i[5] = 1;
i[6] = 1;
i[7] = 0;
}
void msf_make_bits (UTC u, uint8_t *a, uint8_t *b)
{
bzero (a, 60);
bzero (b, 60);
a[0] = 1;
b[0] = 1;
bcd_set (a, 17, 24, u.year % 100);
bcd_set (a, 25, 29, u.month);
bcd_set (a, 30, 35, u.mday);
bcd_set (a, 36, 38, u.wday - 1);
bcd_set (a, 39, 44, u.hour);
bcd_set (a, 45, 51, u.minute);
msf_set_ident (&a[52]);
b[53] = 0; /* about to be BST */
b[54] = set_parity (a, 17, 24);
b[55] = set_parity (a, 25, 35);
b[56] = set_parity (a, 36, 38);
b[57] = set_parity (a, 39, 51);
b[58] = 0; /*BST vs GMT */
}
void msf_make_stream (uint8_t *v, uint8_t *a, uint8_t *b)
{
unsigned s;
bzero (v, 600);
for (s = 0; s < 60; ++s, v += 10, ++a, ++b) {
if (!s)
memset (v, 1, 5);
v[0] = 1;
v[1] = *a;
v[2] = *b;
}
}
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