4 * (C) Copyright 1989-1995
12 * - add proto for StoreString
13 * - change s_id from [NCPS] to pointer
14 * - change m_id from [NCPS] to pointer
17 * - add R_J11 for 8051 assembler
18 * - add outr11 prototype for 8051 assembler
19 * - always define "ccase"
21 * - add jflag for debug control
22 * - prototypes for DefineNoICE_Line
24 * - add memory space flags to a_flag for 8051
27 * - add DS80C390 flat mode support.
30 #define VERSION "V01.70 + NoICE + SDCC mods + Flat24 Feb-1999"
32 #if !defined(__BORLANDC__) && !defined(_MSC_VER)
37 * Case Sensitivity Flag
39 #define CASE_SENSITIVE 1
43 * The module asm.h contains the definitions for constants,
44 * structures, global variables, and ASxxxx functions
45 * contained in the ASxxxx.c files. The two functions
46 * and three global variables from the machine dependent
47 * files are also defined.
51 * compiler/operating system specific definitions
54 /* DECUS C void definition */
55 /* File/extension seperator */
62 /* PDOS C void definition */
63 /* File/extension seperator */
70 /* Default void definition */
71 /* File/extension seperator */
80 * Assembler definitions.
82 #define LFTERM '(' /* Left expression delimeter */
83 #define RTTERM ')' /* Right expression delimeter */
85 #define NCPS 80 /* Chars. per symbol (JLH: change from 8) */
86 #define HUGE 1000 /* A huge number */
87 #define NERR 3 /* Errors per line */
88 #define NINPUT FILENAME_MAX /* Input buffer size (BH: change from 128) */
89 #define NCODE 128 /* Listing code buffer size */
90 #define NTITL 64 /* Title buffer size */
91 #define NSBTL 64 /* SubTitle buffer size */
92 #define NHASH 64 /* Buckets in hash table */
93 #define HMASK 077 /* Hash mask */
94 #define NLPP 60 /* Lines per page */
95 #define MAXFIL 6 /* Maximum command line input files */
96 #define MAXINC 6 /* Maximum nesting of include files */
97 #define MAXIF 10 /* Maximum nesting of if/else/endif */
99 #define NLIST 0 /* No listing */
100 #define SLIST 1 /* Source only */
101 #define ALIST 2 /* Address only */
102 #define BLIST 3 /* Address only with allocation */
103 #define CLIST 4 /* Code */
104 #define ELIST 5 /* Equate only */
106 #define dot sym[0] /* Dot, current loc */
107 #define dca area[0] /* Dca, default code area */
110 /* NB: for Flat24 extentions to work, Addr_T must be at least 24
111 * bits. This is checked at runtime when the .flat24 directive
114 typedef unsigned int Addr_T;
117 * The area structure contains the parameter values for a
118 * specific program or data section. The area structure
119 * is a linked list of areas. The initial default area
120 * is "_CODE" defined in asdata.c, the next area structure
121 * will be linked to this structure through the structure
122 * element 'struct area *a_ap'. The structure contains the
123 * area name, area reference number ("_CODE" is 0) determined
124 * by the order of .area directives, area size determined
125 * from the total code and/or data in an area, area fuzz is
126 * a variable used to track pass to pass changes in the
127 * area size caused by variable length instruction formats,
128 * and area flags which specify the area's relocation type.
132 struct area *a_ap; /* Area link */
133 char a_id[NCPS]; /* Area Name */
134 int a_ref; /* Ref. number */
135 Addr_T a_size; /* Area size */
136 Addr_T a_fuzz; /* Area fuzz */
137 int a_flag; /* Area flags */
141 * The "A_" area constants define values used in
142 * generating the assembler area output data.
147 * +-----+-----+-----+-----+-----+-----+-----+-----+
148 * | BIT |XDATA|DATA | PAG | ABS | OVR | | |
149 * +-----+-----+-----+-----+-----+-----+-----+-----+
152 #define A_CON 0000 /* Concatenating */
153 #define A_OVR 0004 /* Overlaying */
154 #define A_REL 0000 /* Relocatable */
155 #define A_ABS 0010 /* absolute */
156 #define A_NOPAG 0000 /* Non-Paged */
157 #define A_PAG 0020 /* Paged */
159 /* Additional flags for 8051 address spaces */
160 #define A_DATA 0000 /* data space (default)*/
161 #define A_CODE 0040 /* code space */
162 #define A_XDATA 0100 /* external data space */
163 #define A_BIT 0200 /* bit addressable space */
166 * The "R_" relocation constants define values used in
167 * generating the assembler relocation output data for
168 * areas, symbols, and code.
173 * +-----+-----+-----+-----+-----+-----+-----+-----+
174 * | MSB | PAGn| PAG0| USGN| BYT2| PCR | SYM | BYT |
175 * +-----+-----+-----+-----+-----+-----+-----+-----+
178 #define R_WORD 0x00 /* 16 bit */
179 #define R_BYTE 0x01 /* 8 bit */
181 #define R_AREA 0x00 /* Base type */
184 #define R_NORM 0x00 /* PC adjust */
187 #define R_BYT1 0x00 /* Byte count for R_BYTE = 1 */
188 #define R_BYT2 0x08 /* Byte count for R_BYTE = 2 */
190 #define R_SGND 0x00 /* Signed Byte */
191 #define R_USGN 0x10 /* Unsigned Byte */
193 #define R_NOPAG 0x00 /* Page Mode */
194 #define R_PAG0 0x20 /* Page '0' */
195 #define R_PAG 0x40 /* Page 'nnn' */
197 #define R_LSB 0x00 /* low byte */
198 #define R_MSB 0x80 /* high byte */
200 #define R_BYT3 0x100 /* if R_BYTE is set, this is a
201 * 3 byte address, of which
202 * the linker must select one byte.
204 #define R_HIB 0x200 /* If R_BYTE & R_BYT3 are set, linker
205 * will select byte 3 of the relocated
209 #define R_J11 (R_WORD|R_BYT2) /* JLH: 11 bit JMP and CALL (8051) */
210 #define R_J19 (R_WORD|R_BYT2|R_MSB) /* 19 bit JMP/CALL (DS80C390) */
211 #define R_C24 (R_WORD|R_BYT1|R_MSB) /* 24 bit address (DS80C390) */
212 #define R_J19_MASK (R_BYTE|R_BYT2|R_MSB)
214 #define IS_R_J19(x) (((x) & R_J19_MASK) == R_J19)
215 #define IS_R_J11(x) (((x) & R_J19_MASK) == R_J11)
216 #define IS_C24(x) (((x) & R_J19_MASK) == R_C24)
218 #define R_ESCAPE_MASK 0xf0 /* Used to escape relocation modes
219 * greater than 0xff in the .rel
224 * Listing Control Flags
227 #define R_HIGH 0040000 /* High Byte */
228 #define R_RELOC 0100000 /* Relocation */
230 #define R_DEF 00 /* Global def. */
231 #define R_REF 01 /* Global ref. */
232 #define R_REL 00 /* Relocatable */
233 #define R_ABS 02 /* Absolute */
234 #define R_GBL 00 /* Global */
235 #define R_LCL 04 /* Local */
238 * The mne structure is a linked list of the assembler
239 * mnemonics and directives. The list of mnemonics and
240 * directives contained in the device dependent file
241 * xxxpst.c are hashed and linked into NHASH lists in
242 * module assym.c by syminit(). The structure contains
243 * the mnemonic/directive name, a subtype which directs
244 * the evaluation of this mnemonic/directive, a flag which
245 * is used to detect the end of the mnemonic/directive
246 * list in xxxpst.c, and a value which is normally
247 * associated with the assembler mnemonic base instruction
252 struct mne *m_mp; /* Hash link */
253 char *m_id; /* Mnemonic JLH: change from [NCPS] */
254 char m_type; /* Mnemonic subtype */
255 char m_flag; /* Mnemonic flags */
256 Addr_T m_valu; /* Value */
260 * The sym structure is a linked list of symbols defined
261 * in the assembler source files. The first symbol is "."
262 * defined in asdata.c. The entry 'struct tsym *s_tsym'
263 * links any temporary symbols following this symbol and
264 * preceeding the next normal symbol. The structure also
265 * contains the symbol's name, type (USER or NEW), flag
266 * (global, assigned, and multiply defined), a pointer
267 * to the area structure defining where the symbol is
268 * located, a reference number assigned by outgsd() in
269 * asout.c, and the symbols address relative to the base
270 * address of the area where the symbol is located.
274 struct sym *s_sp; /* Hash link */
275 struct tsym *s_tsym; /* Temporary symbol link */
276 char *s_id; /* Symbol: JLH change from [NCPS] */
277 char s_type; /* Symbol subtype */
278 char s_flag; /* Symbol flags */
279 struct area *s_area; /* Area line, 0 if absolute */
280 int s_ref; /* Ref. number */
281 Addr_T s_addr; /* Address */
284 #define S_GBL 01 /* Global */
285 #define S_ASG 02 /* Assigned */
286 #define S_MDF 04 /* Mult. def */
287 #define S_END 010 /* End mark for pst. */
289 #define S_NEW 0 /* New name */
290 #define S_USER 1 /* User name */
295 #define S_BYTE 5 /* .byte */
296 #define S_WORD 6 /* .word */
297 #define S_ASCII 7 /* .ascii */
298 #define S_ASCIZ 8 /* .asciz */
299 #define S_BLK 9 /* .blkb or .blkw */
300 #define S_INCL 10 /* .include */
301 #define S_DAREA 11 /* .area */
302 #define S_ATYP 12 /* .area type */
303 #define S_AREA 13 /* .area name */
304 #define S_GLOBL 14 /* .globl */
305 #define S_PAGE 15 /* .page */
306 #define S_TITLE 16 /* .title */
307 #define S_SBTL 17 /* .sbttl */
308 #define S_IF 18 /* .if */
309 #define S_ELSE 19 /* .else */
310 #define S_ENDIF 20 /* .endif */
311 #define S_EVEN 21 /* .even */
312 #define S_ODD 22 /* .odd */
313 #define S_RADIX 23 /* .radix */
314 #define S_ORG 24 /* .org */
315 #define S_MODUL 25 /* .module */
316 #define S_ASCIS 26 /* .ascis */
317 #define S_FLAT24 27 /* .flat24 */
321 * The tsym structure is a linked list of temporary
322 * symbols defined in the assembler source files following
323 * a normal symbol. The structure contains the temporary
324 * symbols number, a flag (multiply defined), a pointer to the
325 * area structure defining where the temporary structure
326 * is located, and the temporary symbol's address relative
327 * to the base address of the area where the symbol
332 struct tsym *t_lnk; /* Link to next */
333 /* sandeep changed to 'int' from 'char' */
334 /* this will increase the number temp symbols
335 that can be defined from 255 to INT_MAX */
336 int t_num; /* 0-INT_MAX$ */
337 int t_flg; /* flags */
339 struct area *t_area; /* Area */
340 Addr_T t_addr; /* Address */
344 * External Definitions for all Global Variables
347 extern int aserr; /* ASxxxx error counter
349 extern jmp_buf jump_env; /* compiler dependent structure
350 * used by setjmp() and longjmp()
352 extern int inpfil; /* count of assembler
353 * input files specified
355 extern int incfil; /* current file handle index
358 extern int cfile; /* current file handle index
359 * of input assembly files
361 extern int flevel; /* IF-ELSE-ENDIF flag will be non
362 * zero for false conditional case
364 extern int tlevel; /* current conditional level
366 extern int ifcnd[MAXIF+1]; /* array of IF statement condition
367 * values (0 = FALSE) indexed by tlevel
369 extern int iflvl[MAXIF+1]; /* array of IF-ELSE-ENDIF flevel
370 * values indexed by tlevel
373 afn[FILENAME_MAX]; /* afile() temporary filespec
376 srcfn[MAXFIL][FILENAME_MAX]; /* array of source file names
379 srcline[MAXFIL]; /* current source file line
382 incfn[MAXINC][FILENAME_MAX]; /* array of include file names
385 incline[MAXINC]; /* current include file line
387 extern int radix; /* current number conversion radix:
388 * 2 (binary), 8 (octal), 10 (decimal),
391 extern int line; /* current assembler source
394 extern int page; /* current page number
396 extern int lop; /* current line number on page
398 extern int pass; /* assembler pass number
400 extern int lflag; /* -l, generate listing flag
402 extern int cflag; /* -c, generate sdcdb debug information
404 extern int gflag; /* -g, make undefined symbols global flag
406 extern int aflag; /* -a, make all symbols global flag
408 extern int jflag; /* -j, generate debug information flag
410 extern int oflag; /* -o, generate relocatable output flag
412 extern int sflag; /* -s, generate symbol table flag
414 extern int pflag; /* -p, enable listing pagination
416 extern int xflag; /* -x, listing radix flag
418 extern int fflag; /* -f(f), relocations flagged flag
420 extern Addr_T laddr; /* address of current assembler line
421 * or value of .if argument
423 extern Addr_T fuzz; /* tracks pass to pass changes in the
424 * address of symbols caused by
425 * variable length instruction formats
427 extern int lmode; /* listing mode
429 extern struct area area[]; /* array of 1 area
431 extern struct area *areap; /* pointer to an area structure
433 extern struct sym sym[]; /* array of 1 symbol
435 extern struct sym *symp; /* pointer to a symbol structure
437 extern struct sym *symhash[NHASH]; /* array of pointers to NHASH
438 * linked symbol lists
440 extern struct mne *mnehash[NHASH]; /* array of pointers to NHASH
441 * linked mnemonic/directive lists
443 extern char *ep; /* pointer into error list
446 extern char eb[NERR]; /* array of generated error codes
448 extern char *ip; /* pointer into the assembler-source
451 extern char ib[NINPUT]; /* assembler-source text line
453 extern char *cp; /* pointer to assembler output
456 extern char cb[NCODE]; /* array of assembler output values
458 extern int *cpt; /* pointer to assembler relocation type
461 extern int cbt[NCODE]; /* array of assembler relocation types
462 * describing the data in cb[]
464 extern char tb[NTITL]; /* Title string buffer
466 extern char stb[NSBTL]; /* Subtitle string buffer
468 extern int flat24Mode; /* non-zero if we are using DS390 24 bit
469 * flat mode (via .flat24 directive).
471 extern char symtbl[]; /* string "Symbol Table"
473 extern char aretbl[]; /* string "Area Table"
475 extern char module[NCPS]; /* module name string
477 extern FILE *lfp; /* list output file handle
479 extern FILE *ofp; /* relocation output file handle
481 extern FILE *tfp; /* symbol table output file handle
483 extern FILE *sfp[MAXFIL]; /* array of assembler-source file handles
485 extern FILE *ifp[MAXINC]; /* array of include-file file handles
487 extern char ctype[128]; /* array of character types, one per
491 extern char ccase[128]; /* an array of characters which
492 * perform the case translation function
495 * Definitions for Character Types
508 #define DGT2 DIGIT|RAD16|RAD10|RAD8|RAD2
509 #define DGT8 DIGIT|RAD16|RAD10|RAD8
510 #define DGT10 DIGIT|RAD16|RAD10
511 #define LTR16 LETTER|RAD16
514 * The exp structure is used to return the evaluation
515 * of an expression. The structure supports three valid
517 * (1) The expression evaluates to a constant,
518 * mode = S_USER, flag = 0, addr contains the
519 * constant, and base = NULL.
520 * (2) The expression evaluates to a defined symbol
521 * plus or minus a constant, mode = S_USER,
522 * flag = 0, addr contains the constant, and
523 * base = pointer to area symbol.
524 * (3) The expression evaluates to a external
525 * global symbol plus or minus a constant,
526 * mode = S_NEW, flag = 1, addr contains the
527 * constant, and base = pointer to symbol.
531 char e_mode; /* Address mode */
532 char e_flag; /* Symbol flag */
533 Addr_T e_addr; /* Address */
537 } e_base; /* Rel. base */
538 int e_rlcf; /* Rel. flags */
541 /* C Library functions */
542 /* for reference only
545 extern char * fgets();
546 extern FILE * fopen();
547 extern int fprintf();
548 extern VOID longjmp();
549 extern VOID * malloc();
555 extern char * strcpy();
557 extern char * strncpy();
560 /* Machine independent functions */
563 extern FILE * afile();
564 extern VOID asexit();
567 extern VOID newdot();
572 extern char endline();
575 extern int getline();
581 extern VOID chop_crlf();
584 extern struct area * alookup();
585 extern struct mne * mlookup();
587 extern struct sym * lookup();
590 extern VOID syminit();
591 extern VOID symglob();
592 extern VOID allglob();
598 extern VOID warnBanner(void);
599 extern char * geterr();
604 extern VOID abscheck();
605 extern Addr_T absexpr();
606 extern VOID clrexpr();
617 extern VOID lstsym();
623 extern int byte3(int);
626 extern VOID outarea();
628 extern VOID outall();
629 extern VOID outdot();
630 extern VOID outbuf();
631 extern VOID outchk();
632 extern VOID outgsd();
634 extern VOID outrw(struct expr *, int);
635 extern VOID outr24(struct expr *, int);
636 extern VOID outsym();
637 extern VOID out_lb();
638 extern VOID out_lw();
639 extern VOID out_l24(int, int);
640 extern VOID out_rw();
641 extern VOID out_tw();
642 extern VOID out_t24(int);
643 extern VOID outr11(); /* JLH */
644 extern VOID outr19(struct expr *, int, int);
647 extern char *StoreString( char *str );
650 extern void DefineNoICE_Line();
651 extern void DefineCDB_Line();
653 /* Machine dependent variables */
658 extern struct mne mne[];
660 /* Machine dependent functions */
663 extern VOID machine(struct mne *);
665 /* SD added THIS define to change
666 strcmpi --> strcmp (strcmpi is NOT ANSI) */
667 #define strcmpi strcmp