24 lines
467 B
C
24 lines
467 B
C
#include <system.h>
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#define from_bcd(val) ((val / 16) * 10 + (val & 0xf))
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void
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get_time(
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uint16_t * hours,
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uint16_t * minutes,
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uint16_t * seconds
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) {
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uint16_t values[128];
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uint16_t index;
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__asm__ __volatile__ ("cli");
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for (index = 0; index < 128; ++index) {
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outportb(0x70, index);
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values[index] = inportb(0x71);
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}
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__asm__ __volatile__ ("sti");
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*hours = from_bcd(values[4]);
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*minutes = from_bcd(values[2]);
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*seconds = from_bcd(values[0]);
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}
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