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 128 /* Input buffer size */
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 */
98 #define FILSPC 80 /* Chars. in filespec */
100 #define NLIST 0 /* No listing */
101 #define SLIST 1 /* Source only */
102 #define ALIST 2 /* Address only */
103 #define BLIST 3 /* Address only with allocation */
104 #define CLIST 4 /* Code */
105 #define ELIST 5 /* Equate only */
107 #define dot sym[0] /* Dot, current loc */
108 #define dca area[0] /* Dca, default code area */
111 /* NB: for Flat24 extentions to work, Addr_T must be at least 24
112 * bits. This is checked at runtime when the .flat24 directive
115 typedef unsigned int Addr_T;
118 * The area structure contains the parameter values for a
119 * specific program or data section. The area structure
120 * is a linked list of areas. The initial default area
121 * is "_CODE" defined in asdata.c, the next area structure
122 * will be linked to this structure through the structure
123 * element 'struct area *a_ap'. The structure contains the
124 * area name, area reference number ("_CODE" is 0) determined
125 * by the order of .area directives, area size determined
126 * from the total code and/or data in an area, area fuzz is
127 * a variable used to track pass to pass changes in the
128 * area size caused by variable length instruction formats,
129 * and area flags which specify the area's relocation type.
133 struct area *a_ap; /* Area link */
134 char a_id[NCPS]; /* Area Name */
135 int a_ref; /* Ref. number */
136 Addr_T a_size; /* Area size */
137 Addr_T a_fuzz; /* Area fuzz */
138 int a_flag; /* Area flags */
142 * The "A_" area constants define values used in
143 * generating the assembler area output data.
148 * +-----+-----+-----+-----+-----+-----+-----+-----+
149 * | BIT |XDATA|DATA | PAG | ABS | OVR | | |
150 * +-----+-----+-----+-----+-----+-----+-----+-----+
153 #define A_CON 0000 /* Concatenating */
154 #define A_OVR 0004 /* Overlaying */
155 #define A_REL 0000 /* Relocatable */
156 #define A_ABS 0010 /* absolute */
157 #define A_NOPAG 0000 /* Non-Paged */
158 #define A_PAG 0020 /* Paged */
160 /* Additional flags for 8051 address spaces */
161 #define A_DATA 0000 /* data space (default)*/
162 #define A_CODE 0040 /* code space */
163 #define A_XDATA 0100 /* external data space */
164 #define A_BIT 0200 /* bit addressable space */
167 * The "R_" relocation constants define values used in
168 * generating the assembler relocation output data for
169 * areas, symbols, and code.
174 * +-----+-----+-----+-----+-----+-----+-----+-----+
175 * | MSB | PAGn| PAG0| USGN| BYT2| PCR | SYM | BYT |
176 * +-----+-----+-----+-----+-----+-----+-----+-----+
179 #define R_WORD 0x00 /* 16 bit */
180 #define R_BYTE 0x01 /* 8 bit */
182 #define R_AREA 0x00 /* Base type */
185 #define R_NORM 0x00 /* PC adjust */
188 #define R_BYT1 0x00 /* Byte count for R_BYTE = 1 */
189 #define R_BYT2 0x08 /* Byte count for R_BYTE = 2 */
191 #define R_SGND 0x00 /* Signed Byte */
192 #define R_USGN 0x10 /* Unsigned Byte */
194 #define R_NOPAG 0x00 /* Page Mode */
195 #define R_PAG0 0x20 /* Page '0' */
196 #define R_PAG 0x40 /* Page 'nnn' */
198 #define R_LSB 0x00 /* low byte */
199 #define R_MSB 0x80 /* high byte */
201 #define R_BYT3 0x100 /* if R_BYTE is set, this is a
202 * 3 byte address, of which
203 * the linker must select one byte.
205 #define R_HIB 0x200 /* If R_BYTE & R_BYT3 are set, linker
206 * will select byte 3 of the relocated
210 #define R_J11 (R_WORD|R_BYT2) /* JLH: 11 bit JMP and CALL (8051) */
211 #define R_J19 (R_WORD|R_BYT2|R_MSB) /* 19 bit JMP/CALL (DS80C390) */
212 #define R_C24 (R_WORD|R_BYT1|R_MSB) /* 24 bit address (DS80C390) */
213 #define R_J19_MASK (R_BYTE|R_BYT2|R_MSB)
215 #define IS_R_J19(x) (((x) & R_J19_MASK) == R_J19)
216 #define IS_R_J11(x) (((x) & R_J19_MASK) == R_J11)
217 #define IS_C24(x) (((x) & R_J19_MASK) == R_C24)
219 #define R_ESCAPE_MASK 0xf0 /* Used to escape relocation modes
220 * greater than 0xff in the .rel
225 * Listing Control Flags
228 #define R_HIGH 0040000 /* High Byte */
229 #define R_RELOC 0100000 /* Relocation */
231 #define R_DEF 00 /* Global def. */
232 #define R_REF 01 /* Global ref. */
233 #define R_REL 00 /* Relocatable */
234 #define R_ABS 02 /* Absolute */
235 #define R_GBL 00 /* Global */
236 #define R_LCL 04 /* Local */
239 * The mne structure is a linked list of the assembler
240 * mnemonics and directives. The list of mnemonics and
241 * directives contained in the device dependent file
242 * xxxpst.c are hashed and linked into NHASH lists in
243 * module assym.c by syminit(). The structure contains
244 * the mnemonic/directive name, a subtype which directs
245 * the evaluation of this mnemonic/directive, a flag which
246 * is used to detect the end of the mnemonic/directive
247 * list in xxxpst.c, and a value which is normally
248 * associated with the assembler mnemonic base instruction
253 struct mne *m_mp; /* Hash link */
254 char *m_id; /* Mnemonic JLH: change from [NCPS] */
255 char m_type; /* Mnemonic subtype */
256 char m_flag; /* Mnemonic flags */
257 Addr_T m_valu; /* Value */
261 * The sym structure is a linked list of symbols defined
262 * in the assembler source files. The first symbol is "."
263 * defined in asdata.c. The entry 'struct tsym *s_tsym'
264 * links any temporary symbols following this symbol and
265 * preceeding the next normal symbol. The structure also
266 * contains the symbol's name, type (USER or NEW), flag
267 * (global, assigned, and multiply defined), a pointer
268 * to the area structure defining where the symbol is
269 * located, a reference number assigned by outgsd() in
270 * asout.c, and the symbols address relative to the base
271 * address of the area where the symbol is located.
275 struct sym *s_sp; /* Hash link */
276 struct tsym *s_tsym; /* Temporary symbol link */
277 char *s_id; /* Symbol: JLH change from [NCPS] */
278 char s_type; /* Symbol subtype */
279 char s_flag; /* Symbol flags */
280 struct area *s_area; /* Area line, 0 if absolute */
281 int s_ref; /* Ref. number */
282 Addr_T s_addr; /* Address */
285 #define S_GBL 01 /* Global */
286 #define S_ASG 02 /* Assigned */
287 #define S_MDF 04 /* Mult. def */
288 #define S_END 010 /* End mark for pst. */
290 #define S_NEW 0 /* New name */
291 #define S_USER 1 /* User name */
296 #define S_BYTE 5 /* .byte */
297 #define S_WORD 6 /* .word */
298 #define S_ASCII 7 /* .ascii */
299 #define S_ASCIZ 8 /* .asciz */
300 #define S_BLK 9 /* .blkb or .blkw */
301 #define S_INCL 10 /* .include */
302 #define S_DAREA 11 /* .area */
303 #define S_ATYP 12 /* .area type */
304 #define S_AREA 13 /* .area name */
305 #define S_GLOBL 14 /* .globl */
306 #define S_PAGE 15 /* .page */
307 #define S_TITLE 16 /* .title */
308 #define S_SBTL 17 /* .sbttl */
309 #define S_IF 18 /* .if */
310 #define S_ELSE 19 /* .else */
311 #define S_ENDIF 20 /* .endif */
312 #define S_EVEN 21 /* .even */
313 #define S_ODD 22 /* .odd */
314 #define S_RADIX 23 /* .radix */
315 #define S_ORG 24 /* .org */
316 #define S_MODUL 25 /* .module */
317 #define S_ASCIS 26 /* .ascis */
318 #define S_FLAT24 27 /* .flat24 */
322 * The tsym structure is a linked list of temporary
323 * symbols defined in the assembler source files following
324 * a normal symbol. The structure contains the temporary
325 * symbols number, a flag (multiply defined), a pointer to the
326 * area structure defining where the temporary structure
327 * is located, and the temporary symbol's address relative
328 * to the base address of the area where the symbol
333 struct tsym *t_lnk; /* Link to next */
334 /* sandeep changed to 'int' from 'char' */
335 /* this will increase the number temp symbols
336 that can be defined from 255 to INT_MAX */
337 int t_num; /* 0-INT_MAX$ */
338 int t_flg; /* flags */
340 struct area *t_area; /* Area */
341 Addr_T t_addr; /* Address */
345 * External Definitions for all Global Variables
348 extern int aserr; /* ASxxxx error counter
350 extern jmp_buf jump_env; /* compiler dependent structure
351 * used by setjmp() and longjmp()
353 extern int inpfil; /* count of assembler
354 * input files specified
356 extern int incfil; /* current file handle index
359 extern int cfile; /* current file handle index
360 * of input assembly files
362 extern int flevel; /* IF-ELSE-ENDIF flag will be non
363 * zero for false conditional case
365 extern int tlevel; /* current conditional level
367 extern int ifcnd[MAXIF+1]; /* array of IF statement condition
368 * values (0 = FALSE) indexed by tlevel
370 extern int iflvl[MAXIF+1]; /* array of IF-ELSE-ENDIF flevel
371 * values indexed by tlevel
374 afn[FILSPC]; /* afile() temporary filespec
377 srcfn[MAXFIL][FILSPC]; /* array of source file names
380 srcline[MAXFIL]; /* current source file line
383 incfn[MAXINC][FILSPC]; /* array of include file names
386 incline[MAXINC]; /* current include file line
388 extern int radix; /* current number conversion radix:
389 * 2 (binary), 8 (octal), 10 (decimal),
392 extern int line; /* current assembler source
395 extern int page; /* current page number
397 extern int lop; /* current line number on page
399 extern int pass; /* assembler pass number
401 extern int lflag; /* -l, generate listing flag
403 extern int cflag; /* -c, generate sdcdb debug information
405 extern int gflag; /* -g, make undefined symbols global flag
407 extern int aflag; /* -a, make all symbols global flag
409 extern int jflag; /* -j, generate debug information flag
411 extern int oflag; /* -o, generate relocatable output flag
413 extern int sflag; /* -s, generate symbol table flag
415 extern int pflag; /* -p, enable listing pagination
417 extern int xflag; /* -x, listing radix flag
419 extern int fflag; /* -f(f), relocations flagged flag
421 extern Addr_T laddr; /* address of current assembler line
422 * or value of .if argument
424 extern Addr_T fuzz; /* tracks pass to pass changes in the
425 * address of symbols caused by
426 * variable length instruction formats
428 extern int lmode; /* listing mode
430 extern struct area area[]; /* array of 1 area
432 extern struct area *areap; /* pointer to an area structure
434 extern struct sym sym[]; /* array of 1 symbol
436 extern struct sym *symp; /* pointer to a symbol structure
438 extern struct sym *symhash[NHASH]; /* array of pointers to NHASH
439 * linked symbol lists
441 extern struct mne *mnehash[NHASH]; /* array of pointers to NHASH
442 * linked mnemonic/directive lists
444 extern char *ep; /* pointer into error list
447 extern char eb[NERR]; /* array of generated error codes
449 extern char *ip; /* pointer into the assembler-source
452 extern char ib[NINPUT]; /* assembler-source text line
454 extern char *cp; /* pointer to assembler output
457 extern char cb[NCODE]; /* array of assembler output values
459 extern int *cpt; /* pointer to assembler relocation type
462 extern int cbt[NCODE]; /* array of assembler relocation types
463 * describing the data in cb[]
465 extern char tb[NTITL]; /* Title string buffer
467 extern char stb[NSBTL]; /* Subtitle string buffer
469 extern int flat24Mode; /* non-zero if we are using DS390 24 bit
470 * flat mode (via .flat24 directive).
472 extern char symtbl[]; /* string "Symbol Table"
474 extern char aretbl[]; /* string "Area Table"
476 extern char module[NCPS]; /* module name string
478 extern FILE *lfp; /* list output file handle
480 extern FILE *ofp; /* relocation output file handle
482 extern FILE *tfp; /* symbol table output file handle
484 extern FILE *sfp[MAXFIL]; /* array of assembler-source file handles
486 extern FILE *ifp[MAXINC]; /* array of include-file file handles
488 extern char ctype[128]; /* array of character types, one per
492 extern char ccase[128]; /* an array of characters which
493 * perform the case translation function
496 * Definitions for Character Types
509 #define DGT2 DIGIT|RAD16|RAD10|RAD8|RAD2
510 #define DGT8 DIGIT|RAD16|RAD10|RAD8
511 #define DGT10 DIGIT|RAD16|RAD10
512 #define LTR16 LETTER|RAD16
515 * The exp structure is used to return the evaluation
516 * of an expression. The structure supports three valid
518 * (1) The expression evaluates to a constant,
519 * mode = S_USER, flag = 0, addr contains the
520 * constant, and base = NULL.
521 * (2) The expression evaluates to a defined symbol
522 * plus or minus a constant, mode = S_USER,
523 * flag = 0, addr contains the constant, and
524 * base = pointer to area symbol.
525 * (3) The expression evaluates to a external
526 * global symbol plus or minus a constant,
527 * mode = S_NEW, flag = 1, addr contains the
528 * constant, and base = pointer to symbol.
532 char e_mode; /* Address mode */
533 char e_flag; /* Symbol flag */
534 Addr_T e_addr; /* Address */
538 } e_base; /* Rel. base */
539 int e_rlcf; /* Rel. flags */
542 /* C Library functions */
543 /* for reference only
546 extern char * fgets();
547 extern FILE * fopen();
548 extern int fprintf();
549 extern VOID longjmp();
550 extern VOID * malloc();
556 extern char * strcpy();
558 extern char * strncpy();
561 /* Machine independent functions */
564 extern FILE * afile();
565 extern VOID asexit();
568 extern VOID newdot();
573 extern char endline();
576 extern int getline();
582 extern VOID chop_crlf();
585 extern struct area * alookup();
586 extern struct mne * mlookup();
588 extern struct sym * lookup();
591 extern VOID syminit();
592 extern VOID symglob();
593 extern VOID allglob();
599 extern VOID warnBanner(void);
600 extern char * geterr();
605 extern VOID abscheck();
606 extern Addr_T absexpr();
607 extern VOID clrexpr();
618 extern VOID lstsym();
624 extern int byte3(int);
627 extern VOID outarea();
629 extern VOID outall();
630 extern VOID outdot();
631 extern VOID outbuf();
632 extern VOID outchk();
633 extern VOID outgsd();
635 extern VOID outrw(struct expr *, int);
636 extern VOID outr24(struct expr *, int);
637 extern VOID outsym();
638 extern VOID out_lb();
639 extern VOID out_lw();
640 extern VOID out_l24(int, int);
641 extern VOID out_rw();
642 extern VOID out_tw();
643 extern VOID out_t24(int);
644 extern VOID outr11(); /* JLH */
645 extern VOID outr19(struct expr *, int, int);
648 extern char *StoreString( char *str );
651 extern void DefineNoICE_Line();
652 extern void DefineCDB_Line();
654 /* Machine dependent variables */
659 extern struct mne mne[];
661 /* Machine dependent functions */
664 extern VOID machine(struct mne *);
666 /* SD added THIS define to change
667 strcmpi --> strcmp (strcmpi is NOT ANSI) */
668 #define strcmpi strcmp