Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / obp / obp / pkg / confvar / interfaces / user-vars.fth

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\ Hypervisor Software File: user-vars.fth
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id: @(#)user-vars.fth 1.1 00/04/20
purpose: 
copyright: Copyright 1990-2000 Sun Microsystems, Inc.  All Rights Reserved

\ Interfaces to the mechanism (if any) for user-created environment variables
\ Some of these interfaces are used in clientif.fth

headers

defer next-env-var  ( adr len -- adr' len' )
: no-next-env-var  ( adr len -- null$ )  2drop null$  ;
' no-next-env-var to next-env-var

defer put-env-var  ( value$ name$ -- len )
: no-put-env-var  ( value$ name$ -- len )  2drop 2drop -1  ;
' no-put-env-var to put-env-var

\ show-extra-env displays the values of environment variables
\ other than the ones explicitly known by Open Firmware.
defer show-extra-env-vars
' noop is show-extra-env-vars

defer show-extra-env-var  ( name$ -- )
: no-show-extra  ( name$ -- )  ." Unknown option: " type cr  ;
' no-show-extra to show-extra-env-var

defer put-extra-env-var  ( value$ name$ -- )
: no-put-extra  ( value$ name$ -- )  no-show-extra 2drop  ;
' no-put-extra to put-extra-env-var

defer get-env-var  ( name$ -- true | value$ false )
: no-get-env-var  ( name$ -- true )  2drop  true  ;
' no-get-env-var to get-env-var

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