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 */
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 */
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ipl_t interrupts_enable(void)
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ipl_t interrupts_enable(void)
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{
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{
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    ipl_t ipl = current_status_reg_read();
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    ipl_t ipl = current_status_reg_read();
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    /*
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     * Current implementation of interrupt handling is non-nested mode.
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     * So we don't enable interrupt if servicing IRQ.
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     * ToDo: Re-implement interrupt handling to handle nested interrupts.
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     */
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    if ((ipl & 0x1f) != UNDEFINED_MODE)
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        current_status_reg_control_write(ipl & ~STATUS_REG_IRQ_DISABLED_BIT);
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    current_status_reg_control_write(ipl & ~STATUS_REG_IRQ_DISABLED_BIT);
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    return ipl;
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    return ipl;
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}
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}
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/** Restore interrupt priority level.
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/** Restore interrupt priority level.