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\ Hypervisor Software File: error-reset.fth
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id: @(#)error-reset.fth 1.1 06/02/16
purpose: Recover from error resets 
copyright: Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

label error-reset-recovery

   %o7			%g3	move		\ Save return address in %g3

   %g0  h# f                    wrpil
   %g0  4                       wrpstate

   trap-table      %o1        	set
   %o1             0          	wrtba     	\ Take over the tba

   h# ffff		%o1	set
 
   %g0  1 		%o0  	add
   %g0 mmu-on-off-func# %o5  add
   %g4                          rdpc
   %g4	%o1		%g4	and
   h# f000.0000         %o1   	set
   %o1	%g4		%o1	add
   %o1	h# 20		%o1	add 
   %g0 fast-trap#    always  htrapif
   nop			
   nop nop nop nop				\ return to here but
						\ in virtual space
   %g0 0 wrtl

   h# ffff		%o1	set		\ return address 
   %g3	%o1		%g3	and   		\ need to be f000.xxxx
   h# f000.0000         %o1   	set
   %o1	%g3		%g3	add
   %g3  8		%g0	jmpl
				nop		\ (delay)
end-code