/* machine.h 4.1 81/05/14 */
#define PAGSIZ (NBPG*CLSIZE)
#define MAXINT 0x7fffffff
#define MAXSTOR ((1L<<31) - ctob(UPAGES))
#define MAXFILE 0xffffffff
* INSTACK tells whether its argument is a stack address.
* INUDOT tells whether its argument is in the (extended) u. area.
* These are used for consistency checking and dont have to be exact.
* INKERNEL tells whether its argument is a kernel space address.
* KVTOPH trims a kernel virtal address back to its offset
* in the kernel address space.
#define INSTACK(x) (((x)&0xf0000000) == 0x70000000)
#define INUDOT(x) (((x)&0xf0000000) == 0x70000000)
#define INKERNEL(x) (((x)&0xf0000000) == 0x80000000)
#define KVTOPH(x) ((x)&~ 0x80000000)
#define KERNOFF 0x80000000