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\ *****************************************************************************
\ * Copyright (c) 2004, 2008 IBM Corporation
\ * All rights reserved.
\ * This program and the accompanying materials
\ * are made available under the terms of the BSD License
\ * which accompanies this distribution, and is available at
\ * http://www.opensource.org/licenses/bsd-license.php
\ *
\ * Contributors:
\ * IBM Corporation - initial implementation
\ ****************************************************************************/
100 CONSTANT quiesce-xt#
\ The array with the quiesce execution tokens:
CREATE quiesce-xts quiesce-xt# cells allot
quiesce-xts quiesce-xt# cells erase
0 VALUE quiesce-done?
\ Add a token to the quiesce execution token array:
: add-quiesce-xt ( xt -- )
quiesce-xt# 0 DO
quiesce-xts I cells + ( xt arrayptr )
dup @ 0= ( xt arrayptr true|false )
IF
! UNLOOP EXIT
ELSE ( xt arrayptr )
over swap ( xt xt arrayptr )
@ = \ xt already stored ?
IF
drop UNLOOP EXIT
THEN ( xt )
THEN
LOOP
drop ( xt -- )
." Warning: quiesce xt list is full." cr
;
\ The quiesce call asserts that the firmware and all hardware
\ is in a sane state (e.g. assert that no background DMA is
\ running anymore)
: quiesce ( -- )
quiesce-done? IF EXIT THEN
true to quiesce-done?
quiesce-xt# 0 DO
quiesce-xts I cells + ( arrayptr )
@ dup IF ( xt )
EXECUTE
ELSE
drop UNLOOP EXIT
THEN
LOOP
;
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