xref: /titanic_50/usr/src/lib/efcode/upa/upa.c (revision dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 2000 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <stdio.h>
30 #include <string.h>
31 #include <fcode/private.h>
32 
33 static void
34 do_decode_unit(fcode_env_t *env)
35 {
36 	CHECK_DEPTH(env, 2, "upa:decode-unit");
37 	parse_two_int(env);
38 	if ((TOS & 0x1c0) == 0) {
39 		TOS = ((TOS << 1) | 0x1c0);
40 	}
41 }
42 
43 static void
44 do_encode_unit(fcode_env_t *env)
45 {
46 	static char buf[8];
47 	fstack_t hi, mid, lo;
48 	int dev, fn, len;
49 
50 	CHECK_DEPTH(env, 2, "upa:encode-unit");
51 	hi = POP(DS);
52 	lo = POP(DS);
53 	hi = ((hi >> 1) & 0x1f);
54 	sprintf(buf, "%x,%x", hi, lo);
55 	push_a_string(env, buf);
56 }
57 
58 #pragma init(_init)
59 
60 static void
61 _init(void)
62 {
63 	fcode_env_t *env = initial_env;
64 
65 	ASSERT(env);
66 	NOTICE;
67 
68 	create_int_prop(env, "#address-cells", 2);
69 	create_int_prop(env, "#size-cells", 2);
70 
71 	FORTH(0,	"decode-unit",		do_decode_unit);
72 	FORTH(0,	"encode-unit",		do_encode_unit);
73 
74 }
75