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1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: svc.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: @(#)svc.fth 1.1 06/02/16 | |
43 | purpose: | |
44 | copyright: Copyright 2006 Sun Microsystems, Inc. All Rights Reserved | |
45 | copyright: Use is subject to license terms. | |
46 | ||
47 | \ | |
48 | \ This is a simple wrapper to the htraps that run the svc buffers. | |
49 | \ | |
50 | \ Call init-svc before you use the interfaces. | |
51 | \ | |
52 | ||
53 | headerless | |
54 | ||
55 | 0 value my-svc | |
56 | 0 value my-mtu | |
57 | 0 value inbuf | |
58 | 0 value outbuf | |
59 | 0 value pibuf | |
60 | 0 value pobuf | |
61 | ||
62 | : init-svc ( svc mtu -- ) | |
63 | dup alloc-mem is inbuf | |
64 | dup alloc-mem is outbuf | |
65 | is my-mtu | |
66 | is my-svc | |
67 | inbuf >physical drop is pibuf | |
68 | outbuf >physical drop is pobuf | |
69 | ; | |
70 | ||
71 | : finish-svc ( -- ) | |
72 | inbuf my-mtu free-mem | |
73 | outbuf my-mtu free-mem | |
74 | ; | |
75 | ||
76 | : getstatus ( -- reg ) begin my-svc 1 2 h# 82 h# 80 htrap 0= until ; | |
77 | : setstatus ( reg -- ) begin my-svc swap 2 1 h# 83 h# 80 htrap 0= until ; | |
78 | : clrstatus ( reg -- ) begin my-svc swap 2 1 h# 84 h# 80 htrap 0= until ; | |
79 | ||
80 | : send? ( -- flag ) getstatus h# 10 and 0= ; | |
81 | : recv? ( -- key ) getstatus h# 01 and 0<> ; | |
82 | ||
83 | \ these two are raw.. they assume you have check status before calling them | |
84 | : recv ( -- len ) | |
85 | my-svc pibuf my-mtu 3 2 h# 81 h# 80 htrap if | |
86 | drop 0 | |
87 | else | |
88 | 1 clrstatus | |
89 | then | |
90 | ; | |
91 | ||
92 | : send ( len -- ) | |
93 | h# 4 clrstatus >r my-svc pobuf r> 3 1 h# 80 h# 80 htrap drop | |
94 | ; |