111 lines
2.2 KiB
C
111 lines
2.2 KiB
C
#include "muse.h"
|
|
|
|
enum {
|
|
MUSE_OFF,
|
|
MUSE_ON,
|
|
MUSE_C_1_2,
|
|
MUSE_C1,
|
|
MUSE_C2,
|
|
MUSE_C4,
|
|
MUSE_C8,
|
|
MUSE_C3,
|
|
MUSE_C6,
|
|
MUSE_B1,
|
|
MUSE_B2,
|
|
MUSE_B3,
|
|
MUSE_B4,
|
|
MUSE_B5,
|
|
MUSE_B6,
|
|
MUSE_B7,
|
|
MUSE_B8,
|
|
MUSE_B9,
|
|
MUSE_B10,
|
|
MUSE_B11,
|
|
MUSE_B12,
|
|
MUSE_B13,
|
|
MUSE_B14,
|
|
MUSE_B15,
|
|
MUSE_B16,
|
|
MUSE_B17,
|
|
MUSE_B18,
|
|
MUSE_B19,
|
|
MUSE_B20,
|
|
MUSE_B21,
|
|
MUSE_B22,
|
|
MUSE_B23,
|
|
MUSE_B24,
|
|
MUSE_B25,
|
|
MUSE_B26,
|
|
MUSE_B27,
|
|
MUSE_B28,
|
|
MUSE_B29,
|
|
MUSE_B30,
|
|
MUSE_B31
|
|
};
|
|
|
|
bool number_of_ones_to_bool[16] = {
|
|
1, 0, 0, 1, 0, 1, 1, 0,
|
|
0, 1, 1, 0, 1, 0, 0, 1
|
|
};
|
|
|
|
uint8_t muse_interval[4] = {MUSE_B7, MUSE_B19, MUSE_B3, MUSE_B28};
|
|
uint8_t muse_theme[4] = {MUSE_B8, MUSE_B23, MUSE_B18, MUSE_B17};
|
|
|
|
bool muse_timer_1bit = 0;
|
|
uint8_t muse_timer_2bit = 0;
|
|
uint8_t muse_timer_2bit_counter = 0;
|
|
uint8_t muse_timer_4bit = 0;
|
|
uint32_t muse_timer_31bit = 0;
|
|
|
|
bool bit_for_value(uint8_t value) {
|
|
switch (value) {
|
|
case MUSE_OFF:
|
|
return 0;
|
|
case MUSE_ON:
|
|
return 1;
|
|
case MUSE_C_1_2:
|
|
return muse_timer_1bit;
|
|
case MUSE_C1:
|
|
return (muse_timer_4bit & 1);
|
|
case MUSE_C2:
|
|
return (muse_timer_4bit & 2);
|
|
case MUSE_C4:
|
|
return (muse_timer_4bit & 4);
|
|
case MUSE_C8:
|
|
return (muse_timer_4bit & 8);
|
|
case MUSE_C3:
|
|
return (muse_timer_2bit & 1);
|
|
case MUSE_C6:
|
|
return (muse_timer_2bit & 2);
|
|
default:
|
|
return muse_timer_31bit & (1UL << (value - MUSE_B1));
|
|
}
|
|
}
|
|
|
|
uint8_t muse_clock_pulse(void) {
|
|
|
|
bool top = number_of_ones_to_bool[
|
|
bit_for_value(muse_theme[0]) +
|
|
(bit_for_value(muse_theme[1]) << 1) +
|
|
(bit_for_value(muse_theme[2]) << 2) +
|
|
(bit_for_value(muse_theme[3]) << 3)
|
|
];
|
|
|
|
if (muse_timer_1bit == 0) {
|
|
if (muse_timer_2bit_counter == 0) {
|
|
muse_timer_2bit = (muse_timer_2bit + 1) % 4;
|
|
}
|
|
muse_timer_2bit_counter = (muse_timer_2bit_counter + 1) % 3;
|
|
muse_timer_4bit = (muse_timer_4bit + 1) % 16;
|
|
muse_timer_31bit = (muse_timer_31bit << 1) + top;
|
|
}
|
|
|
|
muse_timer_1bit = (muse_timer_1bit + 1) % 2;
|
|
|
|
return
|
|
bit_for_value(muse_interval[0]) +
|
|
(bit_for_value(muse_interval[1]) << 1) +
|
|
(bit_for_value(muse_interval[2]) << 2) +
|
|
(bit_for_value(muse_interval[3]) << 3);
|
|
|
|
}
|