| Colin Cross | 7bb052a | 2015-02-03 12:59:37 -0800 | [diff] [blame^] | 1 | // Inferno utils/6a/a.h |
| 2 | // http://code.google.com/p/inferno-os/source/browse/utils/6a/a.h |
| 3 | // |
| 4 | // Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved. |
| 5 | // Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net) |
| 6 | // Portions Copyright © 1997-1999 Vita Nuova Limited |
| 7 | // Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com) |
| 8 | // Portions Copyright © 2004,2006 Bruce Ellis |
| 9 | // Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net) |
| 10 | // Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others |
| 11 | // Portions Copyright © 2009 The Go Authors. All rights reserved. |
| 12 | // |
| 13 | // Permission is hereby granted, free of charge, to any person obtaining a copy |
| 14 | // of this software and associated documentation files (the "Software"), to deal |
| 15 | // in the Software without restriction, including without limitation the rights |
| 16 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 17 | // copies of the Software, and to permit persons to whom the Software is |
| 18 | // furnished to do so, subject to the following conditions: |
| 19 | // |
| 20 | // The above copyright notice and this permission notice shall be included in |
| 21 | // all copies or substantial portions of the Software. |
| 22 | // |
| 23 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 24 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 25 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 26 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 27 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 28 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 29 | // THE SOFTWARE. |
| 30 | |
| 31 | #include <bio.h> |
| 32 | #include <link.h> |
| 33 | #include "../6l/6.out.h" |
| 34 | |
| 35 | #ifndef EXTERN |
| 36 | #define EXTERN extern |
| 37 | #endif |
| 38 | |
| 39 | #undef getc |
| 40 | #undef ungetc |
| 41 | #undef BUFSIZ |
| 42 | |
| 43 | #define getc ccgetc |
| 44 | #define ungetc ccungetc |
| 45 | |
| 46 | typedef struct Sym Sym; |
| 47 | typedef struct Ref Ref; |
| 48 | typedef struct Io Io; |
| 49 | typedef struct Addr2 Addr2; |
| 50 | |
| 51 | #define MAXALIGN 7 |
| 52 | #define FPCHIP 1 |
| 53 | #define NSYMB 500 |
| 54 | #define BUFSIZ 8192 |
| 55 | #define HISTSZ 20 |
| 56 | #ifndef EOF |
| 57 | #define EOF (-1) |
| 58 | #endif |
| 59 | #define IGN (-2) |
| 60 | #define GETC() ((--fi.c < 0)? filbuf(): *fi.p++ & 0xff) |
| 61 | #define NHASH 503 |
| 62 | #define STRINGSZ 200 |
| 63 | #define NMACRO 10 |
| 64 | |
| 65 | struct Sym |
| 66 | { |
| 67 | Sym* link; |
| 68 | Ref* ref; |
| 69 | char* macro; |
| 70 | vlong value; |
| 71 | ushort type; |
| 72 | char *name; |
| 73 | char sym; |
| 74 | }; |
| 75 | #define S ((Sym*)0) |
| 76 | |
| 77 | struct Ref |
| 78 | { |
| 79 | int class; |
| 80 | }; |
| 81 | |
| 82 | EXTERN struct |
| 83 | { |
| 84 | char* p; |
| 85 | int c; |
| 86 | } fi; |
| 87 | |
| 88 | struct Io |
| 89 | { |
| 90 | Io* link; |
| 91 | char b[BUFSIZ]; |
| 92 | char* p; |
| 93 | short c; |
| 94 | short f; |
| 95 | }; |
| 96 | #define I ((Io*)0) |
| 97 | |
| 98 | struct Addr2 |
| 99 | { |
| 100 | Addr from; |
| 101 | Addr to; |
| 102 | }; |
| 103 | |
| 104 | enum |
| 105 | { |
| 106 | CLAST, |
| 107 | CMACARG, |
| 108 | CMACRO, |
| 109 | CPREPROC, |
| 110 | }; |
| 111 | |
| 112 | EXTERN int debug[256]; |
| 113 | EXTERN Sym* hash[NHASH]; |
| 114 | EXTERN char** Dlist; |
| 115 | EXTERN int nDlist; |
| 116 | EXTERN int newflag; |
| 117 | EXTERN char* hunk; |
| 118 | EXTERN char** include; |
| 119 | EXTERN Io* iofree; |
| 120 | EXTERN Io* ionext; |
| 121 | EXTERN Io* iostack; |
| 122 | EXTERN int32 lineno; |
| 123 | EXTERN int nerrors; |
| 124 | EXTERN int32 nhunk; |
| 125 | EXTERN int ninclude; |
| 126 | EXTERN int32 nsymb; |
| 127 | EXTERN Addr nullgen; |
| 128 | EXTERN char* outfile; |
| 129 | EXTERN int pass; |
| 130 | EXTERN int32 pc; |
| 131 | EXTERN int peekc; |
| 132 | EXTERN int32 stmtline; |
| 133 | EXTERN int sym; |
| 134 | EXTERN char* symb; |
| 135 | EXTERN int thechar; |
| 136 | EXTERN char* thestring; |
| 137 | EXTERN int32 thunk; |
| 138 | EXTERN Biobuf obuf; |
| 139 | EXTERN Link* ctxt; |
| 140 | EXTERN Biobuf bstdout; |
| 141 | |
| 142 | void* alloc(int32); |
| 143 | void* allocn(void*, int32, int32); |
| 144 | void ensuresymb(int32); |
| 145 | void errorexit(void); |
| 146 | void pushio(void); |
| 147 | void newio(void); |
| 148 | void newfile(char*, int); |
| 149 | Sym* slookup(char*); |
| 150 | Sym* lookup(void); |
| 151 | void syminit(Sym*); |
| 152 | int32 yylex(void); |
| 153 | int getc(void); |
| 154 | int getnsc(void); |
| 155 | void unget(int); |
| 156 | int escchar(int); |
| 157 | void cinit(void); |
| 158 | void checkscale(int); |
| 159 | void pinit(char*); |
| 160 | void cclean(void); |
| 161 | int isreg(Addr*); |
| 162 | void outcode(int, Addr2*); |
| 163 | void outhist(void); |
| 164 | void zaddr(Addr*, int); |
| 165 | void zname(char*, int, int); |
| 166 | int filbuf(void); |
| 167 | Sym* getsym(void); |
| 168 | void domacro(void); |
| 169 | void macund(void); |
| 170 | void macdef(void); |
| 171 | void macexpand(Sym*, char*); |
| 172 | void macinc(void); |
| 173 | void macprag(void); |
| 174 | void maclin(void); |
| 175 | void macif(int); |
| 176 | void macend(void); |
| 177 | void dodefine(char*); |
| 178 | void prfile(int32); |
| 179 | void linehist(char*, int); |
| 180 | void gethunk(void); |
| 181 | void yyerror(char*, ...); |
| 182 | int yyparse(void); |
| 183 | void setinclude(char*); |
| 184 | int assemble(char*); |