8a: cope with new kernel load addresses
 [jmk] --rw-rw-r-- M 1505445 glenda sys 11882 Feb 21 13:16 sys/src/cmd/8l/asm.c
	/n/sourcesdump/2006/0221/plan9/sys/src/cmd/8l/asm.c:2,8 - 
	/n/sourcesdump/2006/0222/plan9/sys/src/cmd/8l/asm.c:2,8
	  
	  #define	Dbufslop	100
	  
	- #define PADDR(a)	((ulong)(a) & ~0x80000000)
	+ #define PADDR(a)	((ulong)(a) & ~0xF0000000)
	  
	  long
	  entryvalue(void)