* Miscellaneous DECnet definitions for kernel
* The DECnet protocols often use unaligned 16 bit fields
* as integers. The d_short type represents such a field
* in a protocol structure definition and the D_SHORT macro
* extracts such a field given a pointer to the first byte.
* The AD_SHORT macro assigns to such a field.
* On the VAX it's easy since unaligned references are
* allowed, on the 11 it would be a bit harder.
#define D_SHORT(x) (*((u_short *)(x)))
#define AD_SHORT(x, v) (*((u_short *)(x))) = (v)
* The DECnet code, like the Internet code, runs off software
* interrupts. At present there is only a software interrupt
* for the NSP layer, which will hand the data to the socket.
#define setnspintr() mtpr(SIRR, 14)