1/*	$NetBSD: fgen.h,v 1.4 2001/06/13 10:46:05 wiz Exp $	*/
2/*
3 * fgen.h -- stuff for the fcode tokenizer.
4 *
5 * Copyright (c) 1998 Eduardo Horvath.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/* Type of a Cell */
30typedef int64_t Cell;
31
32/* Token from the scanner. */
33struct tok {
34	int type;
35	char *text;
36};
37
38#define TOKEN struct tok
39#define YY_DECL TOKEN* yylex(void)
40
41#define FCODE	0x000FC0DE
42#define MACRO	0x0000F00D
43
44/* Defined fcode and string. */
45struct fcode {
46	const char *name;
47	long num;
48	int type;
49	struct fcode *l;
50	struct fcode *r;
51};
52
53/* macro instruction as separate words */
54struct macro {
55	const char *name;
56	const char *equiv;
57	int type;
58	struct macro *l;
59	struct macro *r;
60};
61
62/*
63 * FCode header -- assumes big-endian machine,
64 *	otherwise the bits need twiddling.
65 */
66struct fcode_header {
67	char	header;
68	char	format;
69	short	checksum;
70	int	length;
71};
72
73/* Tokenizer tokens */
74enum toktypes {
75	TOK_OCTAL = 8,
76	TOK_DECIMAL = 10,
77	TOK_HEX = 16,
78
79	TOK_NUMBER,
80	TOK_STRING_LIT,
81	TOK_C_LIT,
82	TOK_PSTRING,
83	TOK_TOKENIZE,
84	TOK_COMMENT,
85	TOK_COLON,
86	TOK_SEMICOLON,
87	TOK_TOSTRING,
88
89	/* These are special */
90	TOK_ABORT_S,
91	TOK_AGAIN,
92	TOK_ALIAS,
93	TOK_GETTOKEN,
94	TOK_ASCII,
95	TOK_BEGIN,
96	TOK_BUFFER,
97	TOK_CASE,
98	TOK_CONSTANT,
99	TOK_CONTROL,
100	TOK_CREATE,
101	TOK_DEFER,
102	TOK_DO,
103	TOK_ELSE,
104	TOK_END0,
105	TOK_ENDCASE,
106	TOK_ENDOF,
107	TOK_EXTERNAL,
108	TOK_FCODE_VERSION2,
109	TOK_FCODE_END,
110	TOK_FIELD,
111	TOK_HEADERLESS,
112	TOK_HEADERS,
113	TOK_IF,
114	TOK_LEAVE,
115	TOK_LOOP,
116	TOK_OF,
117	TOK_OFFSET16,
118	TOK_REPEAT,
119	TOK_STARTX,
120	TOK_THEN,
121	TOK_TO,
122	TOK_UNTIL,
123	TOK_VALUE,
124	TOK_VARIABLE,
125	TOK_VERSION1,
126	TOK_WHILE,
127
128	/* Tokenizer directives */
129	TOK_BEGTOK,
130	TOK_EMIT_BYTE,
131	TOK_ENDTOK,
132	TOK_FLOAD,
133
134	TOK_OTHER
135};
136