?? cmosset.c
字號:
/* CMOSSET.C - Set IBM PC/AT's Real-time Clock/CMOS RAM information
Jim Cronin 2-86
*/
#include <stdio.h>
#define IOADDRESS 0x070
#define IODATA 0x071
main ()
{
unsigned char location, value;
extern unsigned char inportb();
for ( ; ; )
{
printf ("Location: ");
if (! scanf ("%x", &location)) break;
outportb (IOADDRESS, location);
value = inportb (IODATA);
printf ("Was: %02x set to: ", value);
if (! scanf ("%x", &value)) break;
outportb (IOADDRESS, location);
outportb (IODATA, value);
}
}
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