	Physical memory is allocated as follows:

First page	Last page		Contents

0		F			Multibus memory
10		1F			CPU on-board resources
20		37F			Multibus memory
380		3FF			Valid peripheral boards
400		7FF			Multibus memory
800		FFF			Special purpose



	Physical memory is used by vmunix as follows:

First page	Last page		Contents

0		0			Trap vectors and VRM copy space
1		4			???
5		9			Kernel symbol table
A		E			???
F		F			Initial U page
10		1F			CPU on-board resources
20		btop(&_end)		Kernel text, data, and bss
btop(&_end)+1	SYSPTSIZE-n-1		Kernel tables (buffer, proc, inode, ...)
SYSPTSIZE-n	37F			Multibus memory
380		3FF			Valid peripheral boards
400		7FF			Multibus memory
800		FFF			Special purpose



	Virtual memory is used by vmunix as follows:

First page	Last page	Prot	Contents

0		0		KW	Trap vectors and VRM copy space
1		2		?	???
3		3		KW	Rimfire initialization block
4		7		?	???
8		B		KW	Used for copy and clear functions
C		C		?	???
D		E		KW	Multibus window
F		F		KW	U page
10		1F		KW	CPU on-board resources
20		btop(&_etext)	KR	Kernel text
btop(&_etext)+1	btop(&_end)	KW	Kernel data and bss
btop(&_end)+1	FF		KW	Kernel virtual space
100		FEF		UW	User program space
FF0		FFF		KW	Reserved for special purpose
