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