Move realmode into link section, add vesa driver.
 [rsc] --rw-rw-r-- M 15674 presotto sys 1504 Nov 10 10:21 sys/src/9/pc/pcf
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pcf:34,39 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pcf:34,40
	  	usb
	  
	  link
	+ 	realmode
	  	devpccard
	  	devi82365
	  	apm		apmjump
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pcf:62,68 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pcf:63,68
	  	usbuhci
	  
	  misc
	- 	realmode
	  	archmp		mp apic
	  
	  	sdata		pci sdscsi
 [rsc] --rw-rw-r-- M 15674 glenda sys 1427 Nov 10 10:21 sys/src/9/pc/pccd
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pccd:34,39 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pccd:34,40
	  	usb
	  
	  link
	+ 	realmode
	  	devpccard
	  	devi82365
	  	apm		apmjump
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pccd:61,67 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pccd:62,67
	  	usbuhci
	  
	  misc
	- 	realmode
	  	archmp		mp apic
	  
	  	sdata		pci sdscsi
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pccd:91,96 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pccd:91,97
	  	vgat2r4		+cur
	  	vgatvp3020	=cur
	  	vgatvp3026	=cur
	+ 	vgavesa
	  	vgavmware	+cur
	  
	  ip
 [rsc] --rw-rw-r-- M 15674 presotto sys 1486 Nov 10 10:21 sys/src/9/pc/pccpuf
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pccpuf:32,37 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pccpuf:32,38
	  	usb
	  
	  link
	+ 	realmode
	  	devpccard
	  	devi82365
	  	ether2000	ether8390
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pccpuf:58,64 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pccpuf:59,64
	  	usbuhci
	  
	  misc
	- 	realmode
	  	archmp		mp apic
	  
	  	uarti8250
 [rsc] --rw-rw-r-- M 15674 rsc sys 1473 Nov 10 10:21 sys/src/9/pc/pcflop
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pcflop:34,39 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pcflop:34,40
	  #	usb
	  
	  link
	+ 	realmode
	  	devpccard
	  	devi82365
	  #	apm		apmjump
	/n/sourcesdump/2005/1110/plan9/sys/src/9/pc/pcflop:62,68 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/pc/pcflop:63,68
	  #	usbuhci
	  
	  misc
	- 	realmode
	  #	archmp		mp apic
	  
	  	sdata		pci sdscsi
 [rsc] --rw-rw-r-- M 15674 glenda sys 11128 Nov 10 10:21 sys/src/9/port/page.c
	/n/sourcesdump/2005/1110/plan9/sys/src/9/port/page.c:240,246 - 
	/n/sourcesdump/2005/1111/plan9/sys/src/9/port/page.c:240,246
	  }
	  
	  Page*
	- auxpage()
	+ auxpage(void)
	  {
	  	Page *p;