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static void timer_irq_handler(irq_t *irq, void *arg, ...)
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static void timer_irq_handler(irq_t *irq, void *arg, ...)
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{
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{
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    unsigned long drift;
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    unsigned long drift;
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    if (cp0_count_read() < lastcount) {
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    if (cp0_count_read() < lastcount)
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        /* Count overflow detection */
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        /* Count overflow detected */
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        count_hi++;
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        count_hi++;
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        lastcount = cp0_count_read();
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    lastcount = cp0_count_read();
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    }
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    drift = cp0_count_read() - nextcount;
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    drift = cp0_count_read() - nextcount;
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    while (drift > cp0_compare_value) {
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    while (drift > cp0_compare_value) {
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        drift -= cp0_compare_value;
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        drift -= cp0_compare_value;
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        CPU->missed_clock_ticks++;
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        CPU->missed_clock_ticks++;