summaryrefslogtreecommitdiff
path: root/src/cmd/8a/a.h
blob: adc388ca9f4d0226fa76c8186930738636b6afc9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
// Inferno utils/8a/a.h
// http://code.google.com/p/inferno-os/source/browse/utils/8a/a.h
//
//	Copyright © 1994-1999 Lucent Technologies Inc.	All rights reserved.
//	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
//	Portions Copyright © 1997-1999 Vita Nuova Limited
//	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
//	Portions Copyright © 2004,2006 Bruce Ellis
//	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
//	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
//	Portions Copyright © 2009 The Go Authors.  All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#include <bio.h>
#include <link.h>
#include "../8l/8.out.h"

#ifndef	EXTERN
#define	EXTERN	extern
#endif

#undef	getc
#undef	ungetc
#undef	BUFSIZ

#define	getc	ccgetc
#define	ungetc	ccungetc

typedef	struct	Sym	Sym;
typedef	struct	Ref	Ref;
typedef	struct	Io	Io;
typedef	struct	Addr2	Addr2;

#define	MAXALIGN	7
#define	FPCHIP		1
#define	NSYMB		500
#define	BUFSIZ		8192
#define	HISTSZ		20
#ifndef	EOF
#define	EOF		(-1)
#endif
#define	IGN		(-2)
#define	GETC()		((--fi.c < 0)? filbuf(): *fi.p++ & 0xff)
#define	NHASH		503
#define	STRINGSZ	200
#define	NMACRO		10

struct	Sym
{
	Sym*	link;
	Ref*	ref;
	char*	macro;
	int32	value;
	ushort	type;
	char	*name;
	char	sym;
};
#define	S	((Sym*)0)

struct	Ref
{
	int	class;
};

EXTERN struct
{
	char*	p;
	int	c;
} fi;

struct	Io
{
	Io*	link;
	char	b[BUFSIZ];
	char*	p;
	short	c;
	short	f;
};
#define	I	((Io*)0)

struct	Addr2
{
	Addr	from;
	Addr	to;
};

enum
{
	CLAST,
	CMACARG,
	CMACRO,
	CPREPROC,
};

EXTERN	int	debug[256];
EXTERN	Sym*	hash[NHASH];
EXTERN	char**	Dlist;
EXTERN	int	nDlist;
EXTERN	int	newflag;
EXTERN	char*	hunk;
EXTERN	char**	include;
EXTERN	Io*	iofree;
EXTERN	Io*	ionext;
EXTERN	Io*	iostack;
EXTERN	int32	lineno;
EXTERN	int	nerrors;
EXTERN	int32	nhunk;
EXTERN	int	ninclude;
EXTERN	int32	nsymb;
EXTERN	Addr	nullgen;
EXTERN	char*	outfile;
EXTERN	int	pass;
EXTERN	int32	pc;
EXTERN	int	peekc;
EXTERN	int32	stmtline;
EXTERN	int	sym;
EXTERN	char*	symb;
EXTERN	int	thechar;
EXTERN	char*	thestring;
EXTERN	int32	thunk;
EXTERN	Biobuf	obuf;
EXTERN	Link*	ctxt;
EXTERN	Biobuf	bstdout;

void*	alloc(int32);
void*	allocn(void*, int32, int32);
void	ensuresymb(int32);
void	errorexit(void);
void	pushio(void);
void	newio(void);
void	newfile(char*, int);
Sym*	slookup(char*);
Sym*	lookup(void);
void	syminit(Sym*);
int32	yylex(void);
int	getc(void);
int	getnsc(void);
void	unget(int);
int	escchar(int);
void	cinit(void);
void	checkscale(int);
void	pinit(char*);
void	cclean(void);
int	isreg(Addr*);
void	outcode(int, Addr2*);
void	outhist(void);
int	filbuf(void);
Sym*	getsym(void);
void	domacro(void);
void	macund(void);
void	macdef(void);
void	macexpand(Sym*, char*);
void	macinc(void);
void	macprag(void);
void	maclin(void);
void	macif(int);
void	macend(void);
void	dodefine(char*);
void	prfile(int32);
void	linehist(char*, int);
void	gethunk(void);
void	yyerror(char*, ...);
int	yyparse(void);
void	setinclude(char*);
int	assemble(char*);