Fix Max7219 with 256 or more cels
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@ -455,15 +455,19 @@ void Max7219::register_setup() {
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#ifdef MAX7219_INIT_TEST
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#if MAX7219_INIT_TEST == 2
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#define MAX7219_LEDS (MAX7219_X_LEDS * MAX7219_Y_LEDS)
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void Max7219::spiral(const bool on, const uint16_t del) {
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constexpr int8_t way[] = { 1, 0, 0, 1, -1, 0, 0, -1 };
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constexpr int8_t way[][2] = { { 1, 0 }, { 0, 1 }, { -1, 0 }, { 0, -1 } };
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int8_t px = 0, py = 0, dir = 0;
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for (uint8_t i = MAX7219_X_LEDS * MAX7219_Y_LEDS; i--;) {
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for (IF<(MAX7219_LEDS > 255), uint16_t, uint8_t>::type i = MAX7219_LEDS; i--;) {
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led_set(px, py, on);
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delay(del);
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const int8_t x = px + way[dir], y = py + way[dir + 1];
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if (!WITHIN(x, 0, MAX7219_X_LEDS - 1) || !WITHIN(y, 0, MAX7219_Y_LEDS - 1) || BIT_7219(x, y) == on) dir = (dir + 2) & 0x7;
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px += way[dir]; py += way[dir + 1];
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const int8_t x = px + way[dir][0], y = py + way[dir][1];
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if (!WITHIN(x, 0, MAX7219_X_LEDS - 1) || !WITHIN(y, 0, MAX7219_Y_LEDS - 1) || BIT_7219(x, y) == on)
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dir = (dir + 1) & 0x3;
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px += way[dir][0];
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py += way[dir][1];
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}
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}
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