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1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: swapped-access.fth | |
4 | \ | |
5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
6 | \ | |
7 | \ - Do no alter or remove copyright notices | |
8 | \ | |
9 | \ - Redistribution and use of this software in source and binary forms, with | |
10 | \ or without modification, are permitted provided that the following | |
11 | \ conditions are met: | |
12 | \ | |
13 | \ - Redistribution of source code must retain the above copyright notice, | |
14 | \ this list of conditions and the following disclaimer. | |
15 | \ | |
16 | \ - Redistribution in binary form must reproduce the above copyright notice, | |
17 | \ this list of conditions and the following disclaimer in the | |
18 | \ documentation and/or other materials provided with the distribution. | |
19 | \ | |
20 | \ Neither the name of Sun Microsystems, Inc. or the names of contributors | |
21 | \ may be used to endorse or promote products derived from this software | |
22 | \ without specific prior written permission. | |
23 | \ | |
24 | \ This software is provided "AS IS," without a warranty of any kind. | |
25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
28 | \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
29 | \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
30 | \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
31 | \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
32 | \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
33 | \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
34 | \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
35 | \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
36 | \ | |
37 | \ You acknowledge that this software is not designed, licensed or | |
38 | \ intended for use in the design, construction, operation or maintenance of | |
39 | \ any nuclear facility. | |
40 | \ | |
41 | \ ========== Copyright Header End ============================================ | |
42 | id: @(#)swapped-access.fth 1.1 02/05/15 | |
43 | purpose: | |
44 | copyright: Copyright 1994-1995,2002 Sun Microsystems, Inc. All Rights Reserved | |
45 | copyright: Use is subject to license terms. | |
46 | ||
47 | headerless | |
48 | ||
49 | : swapped-rx@ ( vadr -- x ) rx@ xbflip ; | |
50 | : swapped-rl@ ( vadr -- l ) rl@ lbflip ; | |
51 | : swapped-rw@ ( vadr -- w ) rw@ wbflip ; | |
52 | ||
53 | : swapped-rx! ( x vadr -- ) >r xbflip r> rx! ; | |
54 | : swapped-rl! ( l vadr -- ) >r lbflip r> rl! ; | |
55 | : swapped-rw! ( l vadr -- ) >r wbflip r> rw! ; | |
56 | ||
57 | : peeker ( adr rd-acf swap-acf -- false | value true ) | |
58 | >r execute if ( value ) | |
59 | r> execute true ( value' true ) | |
60 | else ( -- ) | |
61 | r> drop false ( false ) | |
62 | then ( value,true | false ) | |
63 | ; | |
64 | ||
65 | : poker ( data adr wr-acf swap-acf -- false | true ) | |
66 | -rot ( data swap-acf adr wr-acf ) | |
67 | 2swap ( adr wr-acf data swap-acf ) | |
68 | execute ( wr-acf adr data' ) | |
69 | -rot execute ( false | true ) | |
70 | ; | |
71 | ||
72 | : swapped-lpeek ( adr -- false | value true ) ['] lpeek ['] lbflip peeker ; | |
73 | : swapped-wpeek ( adr -- false | value true ) ['] wpeek ['] wbflip peeker ; | |
74 | ||
75 | : swapped-lpoke ( value adr -- flag ) ['] lpoke ['] lbflip poker ; | |
76 | : swapped-wpoke ( value adr -- flag ) ['] wpoke ['] wbflip poker ; | |
77 | ||
78 | headers | |
79 | : restore-fcodes ( -- ) | |
80 | ['] rw@ false h# 232 set-token | |
81 | ['] rw! false h# 233 set-token | |
82 | ['] rl@ false h# 234 set-token | |
83 | ['] rl! false h# 235 set-token | |
84 | ['] wpeek false h# 221 set-token | |
85 | ['] lpeek false h# 222 set-token | |
86 | ['] wpoke false h# 224 set-token | |
87 | ['] lpoke false h# 225 set-token | |
88 | ; | |
89 | ||
90 | : setup-swapped-fcodes ( -- ) | |
91 | ['] swapped-rw@ false h# 232 set-token | |
92 | ['] swapped-rw! false h# 233 set-token | |
93 | ['] swapped-rl@ false h# 234 set-token | |
94 | ['] swapped-rl! false h# 235 set-token | |
95 | ['] swapped-wpeek false h# 221 set-token | |
96 | ['] swapped-lpeek false h# 222 set-token | |
97 | ['] swapped-wpoke false h# 224 set-token | |
98 | ['] swapped-lpoke false h# 225 set-token | |
99 | ; | |
100 | ||
101 | headerless |