ports.h

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    1 /* Addresses and magic numbers for miscellaneous ports. */
    2 
    3 #ifndef _PORTS_H
    4 #define _PORTS_H
    5 
    6 #if (CHIP == INTEL)
    7 
    8 /* Miscellaneous ports. */
    9 #define PCR             0x65    /* Planar Control Register */
   10 #define PORT_B          0x61    /* I/O port for 8255 port B (kbd, beeper...) */
   11 #define TIMER0          0x40    /* I/O port for timer channel 0 */
   12 #define TIMER2          0x42    /* I/O port for timer channel 2 */
   13 #define TIMER_MODE      0x43    /* I/O port for timer mode control */
   14 
   15 #endif /* (CHIP == INTEL) */
   16 
   17 #endif /* _PORTS_H */

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FreeBSD/Linux Kernel Cross Reference sys/include/ibm/ports.h

FreeBSD/Linux Kernel Cross Reference
sys/include/ibm/ports.h