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\ Hypervisor Software File: flashprom.tok
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id: @(#)flashprom.tok 1.3 06/04/18
purpose: 
copyright: Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

Fcode-Version3

headerless

h# 80000 constant /romsize

my-space encode-int " reg" property
" flashprom"		device-name

fload ${BP}/dev/flash/dropins/misc.fth
fload ${BP}/pkg/dropins/finder.fth

0 value map-level

0 instance value di-ptr
0 instance value di-size
0 instance value di-pos

h# f000.0000 0 lxjoin constant di-base
di-base /romsize + to di-limit

: search-for-dropin ( name$ -- addr,true | false )
   2dup di-base find-drop-in? if	( adr len adr len addr )
      >r 2drop  r> true			( addr,true )
   else					( adr len )
      di-base /romsize 2/ +		( adr len va )
      find-drop-in?			( addr, true )
   then					( addr,true | false )
;

: set-pointers ( base size -- )
   to di-size
   to di-ptr
   0 to di-pos
;

external

: open ( -- flag )
   my-args ?dup  if			( adr len )
      search-for-dropin if		( va,true | false )
         dup >di-image			( va base )
         swap >di-size l@		( base,len )
         set-pointers true		( true )
      else				( )
         false				( false )
      then				( true|false )
   else					( adr )
      drop di-base /romsize		( va,len )
      set-pointers			( )
      true				( true )
   then					( flag )
;

: read ( adr,len -- len )
   di-size min tuck			( len adr len )
   di-pos di-ptr + -rot			( len src adr len )
   move					( len )   
;

: size ( -- n )  di-size  ;

: close	 ( -- )  ;

end0