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    INTPND = INTPND;
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    INTPND = INTPND;
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}
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}
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void interrupt_enable(int irq, bool state)
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void interrupt_enable(int irq, bool state)
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{
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{
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    uint32_t mode = enter_critical_section();
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    if (state) INTMSK |= 1 << irq;
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    if (state) INTMSK |= 1 << irq;
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    else INTMSK &= ~(1 << irq);
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    else INTMSK &= ~(1 << irq);
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    leave_critical_section(mode);
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}
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}
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void interrupt_set_handler(int irq, void* handler)
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void interrupt_set_handler(int irq, void* handler)
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{
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{
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    if (handler) irqvector[irq] = handler;
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    if (handler) irqvector[irq] = handler;