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\ Hypervisor Software File: property-access.fth
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copyright: Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

headerless

my-args decode-int nip nip value my-node

\ Look in the machine description node for a property with the input 
\ name and if it is there return the value and type.
: required-prop ( name$ -- val,type | $data,type | 0 )
   2dup my-node -rot -1 md-find-prop
   ?dup if 
      nip nip md-decode-prop
   else
      cmn-note[ " Missing MD property: %s " ]cmn-end 0
   then
;

\ Look in the machine description node for a property with the input 
\ name. If it is there make a property in the device node with the 
\ same name and value.
: make-prop ( name$ -- ok? )
   2dup required-prop ?dup 0= if		( name$ property type | name$ )
      false					( false )
      cmn-type[ " %s property doesn't exist" ]cmn-end
   else
      case					( name$ property type )
         ascii s of encode-string endof 	
         ascii v of encode-int endof	
      endcase					( name$ enc-property )
      2swap property true              		( true ) 
   then
;