4 * (C) Copyright 1989-1995
12 * - change s_id from [NCPS] to pointer (comment)
14 * - add jflag for debug control
25 * The module asdata.c contains the global constants,
26 * structures, and variables used in the assembler.
29 int aserr; /* ASxxxx error counter
31 jmp_buf jump_env; /* compiler dependent structure
32 * used by setjmp() and longjmp()
34 int inpfil; /* count of assembler
35 * input files specified
37 int incfil; /* current file handle index
40 int cfile; /* current file handle index
41 * of input assembly files
43 int flevel; /* IF-ELSE-ENDIF flag will be non
44 * zero for false conditional case
46 int tlevel; /* current conditional level
48 int ifcnd[MAXIF+1]; /* array of IF statement condition
49 * values (0 = FALSE) indexed by tlevel
51 int iflvl[MAXIF+1]; /* array of IF-ELSE-ENDIF flevel
52 * values indexed by tlevel
55 char afn[FILSPC]; /* afile temporary file name
57 char srcfn[MAXFIL][FILSPC]; /* array of source file names
59 int srcline[MAXFIL]; /* source line number
61 char incfn[MAXINC][FILSPC]; /* array of include file names
63 int incline[MAXINC]; /* include line number
66 int radix; /* current number conversion radix:
67 * 2 (binary), 8 (octal), 10 (decimal),
70 int line; /* current assembler source
73 int page; /* current page number
75 int lop; /* current line number on page
77 int pass; /* assembler pass number
79 int lflag; /* -l, generate listing flag
81 int cflag; /* -lc, generate sdcdb debug info
83 int gflag; /* -g, make undefined symbols global flag
85 int aflag; /* -a, make all symbols global flag
87 int jflag; /* -j, generate debug information flag
89 int oflag; /* -o, generate relocatable output flag
91 int sflag; /* -s, generate symbol table flag
93 int pflag; /* -p, enable listing pagination
95 int xflag; /* -x, listing radix flag
97 int fflag; /* -f(f), relocations flagged flag
99 addr_t laddr; /* address of current assembler line
100 * or value of .if argument
102 addr_t fuzz; /* tracks pass to pass changes in the
103 * address of symbols caused by
104 * variable length instruction formats
106 int lmode; /* listing mode
108 char *ep; /* pointer into error list
111 char eb[NERR]; /* array of generated error codes
113 char *ip; /* pointer into the assembler-source
116 char ib[NINPUT]; /* assembler-source text line
118 char *cp; /* pointer to assembler output
121 char cb[NCODE]; /* array of assembler output values
123 int *cpt; /* pointer to assembler relocation type
126 int cbt[NCODE]; /* array of assembler relocation types
127 * describing the data in cb[]
129 char tb[NTITL]; /* Title string buffer
131 char stb[NSBTL]; /* Subtitle string buffer
134 char symtbl[] = { "Symbol Table" };
135 char aretbl[] = { "Area Table" };
137 char module[NCPS]; /* module name string
141 * The mne structure is a linked list of the assembler
142 * mnemonics and directives. The list of mnemonics and
143 * directives contained in the device dependent file
144 * xxxpst.c are hashed and linked into NHASH lists in
145 * module assym.c by syminit(). The structure contains
146 * the mnemonic/directive name, a subtype which directs
147 * the evaluation of this mnemonic/directive, a flag which
148 * is used to detect the end of the mnemonic/directive
149 * list in xxxpst.c, and a value which is normally
150 * associated with the assembler mnemonic base instruction
155 * struct mne *m_mp; Hash link
156 * char m_id[NCPS]; Mnemonic
157 * char m_type; Mnemonic subtype
158 * char m_flag; Mnemonic flags
159 * addr_t m_valu; Value
162 struct mne *mnehash[NHASH];
165 * The sym structure is a linked list of symbols defined
166 * in the assembler source files. The first symbol is "."
167 * defined here. The entry 'struct tsym *s_tsym'
168 * links any temporary symbols following this symbol and
169 * preceeding the next normal symbol. The structure also
170 * contains the symbol's name, type (USER or NEW), flag
171 * (global, assigned, and multiply defined), a pointer
172 * to the area structure defining where the symbol is
173 * located, a reference number assigned by outgsd() in
174 * asout.c, and the symbols address relative to the base
175 * address of the area where the symbol is located.
179 * struct sym *s_sp; Hash link
180 * struct tsym *s_tsym; Temporary symbol link
181 * char *s_id; Symbol (JLH)
182 * char s_type; Symbol subtype
183 * char s_flag; Symbol flags
184 * struct area *s_area; Area line, 0 if absolute
185 * int s_ref; Ref. number
186 * addr_t s_addr; Address
190 {NULL, NULL, ".", S_USER, S_END, NULL, 0, 0}
193 struct sym *symp; /* pointer to a symbol structure
195 struct sym *symhash[NHASH]; /* array of pointers to NHASH
196 * linked symbol lists
200 * The area structure contains the parameter values for a
201 * specific program or data section. The area structure
202 * is a linked list of areas. The initial default area
203 * is "_CODE" defined here, the next area structure
204 * will be linked to this structure through the structure
205 * element 'struct area *a_ep'. The structure contains the
206 * area name, area reference number ("_CODE" is 0) determined
207 * by the order of .area directives, area size determined
208 * from the total code and/or data in an area, area fuzz is
209 * an variable used to track pass to pass changes in the
210 * area size caused by variable length instruction formats,
211 * and area flags which specify the area's relocation type.
215 * struct area *a_ap; Area link
216 * char a_id[NCPS]; Area Name
217 * int a_ref; Reference number
218 * addr_t a_size; Area size
219 * addr_t a_fuzz; Area fuzz
220 * int a_flag; Area flags
223 struct area area[] = {
224 {NULL, "_CODE", 0, 0, 0, A_CON|A_REL}
227 struct area *areap; /* pointer to an area structure
230 FILE *lfp; /* list output file handle
232 FILE *ofp; /* relocation output file handle
234 FILE *tfp; /* symbol table output file handle
236 FILE *sfp[MAXFIL]; /* array of assembler-source file handles
238 FILE *ifp[MAXINC]; /* array of include-file file handles
242 * array of character types, one per
246 /*NUL*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
247 /*BS*/ ILL, SPACE, ILL, ILL, SPACE, ILL, ILL, ILL,
248 /*DLE*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
249 /*CAN*/ ILL, ILL, ILL, ILL, ILL, ILL, ILL, ILL,
250 /*SPC*/ SPACE, ETC, ETC, ETC, LETTER, BINOP, BINOP, ETC,
251 /*(*/ ETC, ETC, BINOP, BINOP, ETC, BINOP, LETTER, BINOP,
252 /*0*/ DGT2, DGT2, DGT8, DGT8, DGT8, DGT8, DGT8, DGT8,
253 /*8*/ DGT10, DGT10, ETC, ETC, BINOP, ETC, BINOP, ETC,
254 /*@*/ ETC, LTR16, LTR16, LTR16, LTR16, LTR16, LTR16, LETTER,
255 /*H*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
256 /*P*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
257 /*X*/ LETTER, LETTER, LETTER, ETC, ETC, ETC, BINOP, LETTER,
258 /*`*/ ETC, LTR16, LTR16, LTR16, LTR16, LTR16, LTR16, LETTER,
259 /*h*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
260 /*p*/ LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
261 /*x*/ LETTER, LETTER, LETTER, ETC, BINOP, ETC, ETC, ETC
265 * an array of characters which
266 * perform the case translation function
269 /*NUL*/ '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
270 /*BS*/ '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
271 /*DLE*/ '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
272 /*CAN*/ '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
273 /*SPC*/ '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
274 /*(*/ '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
275 /*0*/ '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
276 /*8*/ '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
277 /*@*/ '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
278 /*H*/ '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
279 /*P*/ '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
280 /*X*/ '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
281 /*`*/ '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
282 /*h*/ '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
283 /*p*/ '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
284 /*x*/ '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177'