interrupt.c

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#include <sys/types.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>

#include <interrupt.h>

#include <isr.h>

void enable_interrupt(void)
{
        asm __volatile__ ("sti"::);
}

void disable_interrupt(void)
{
        asm __volatile__ ("cli"::);
}

void irq_local_save(unsigned long *eflags)
{
        asm __volatile__ ("pushf; pop %0; cli":"=m"(*eflags):);
        *eflags &= 0x0200;
}

void irq_local_restore(unsigned long eflags)
{
        if (eflags) {
                asm __volatile__("sti"::);
        } else {
                asm __volatile__("cli"::);
        }
}

/* End of a file */