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 */
83 #ifndef PATH_MAX /* POSIX, but not required */
84 #if defined(_MSC_VER) || defined(__BORLANDC__) /* Microsoft C or Borland C*/
86 #define PATH_MAX _MAX_PATH
88 #define PATH_MAX /* define a reasonable value */
93 * Assembler definitions.
95 #define LFTERM '(' /* Left expression delimeter */
96 #define RTTERM ')' /* Right expression delimeter */
98 #define NCPS 80 /* Chars. per symbol (JLH: change from 8) */
99 #define HUGE 1000 /* A huge number */
100 #define NERR 3 /* Errors per line */
101 #define NINPUT 1024 /* Input buffer size (icodes need space) */
102 #define NCODE 128 /* Listing code buffer size */
103 #define NTITL 64 /* Title buffer size */
104 #define NSBTL 64 /* SubTitle buffer size */
105 #define NHASH 64 /* Buckets in hash table */
106 #define HMASK 077 /* Hash mask */
107 #define NLPP 60 /* Lines per page */
108 #define MAXFIL 6 /* Maximum command line input files */
109 #define MAXINC 6 /* Maximum nesting of include files */
110 #define MAXIF 10 /* Maximum nesting of if/else/endif */
112 #define NLIST 0 /* No listing */
113 #define SLIST 1 /* Source only */
114 #define ALIST 2 /* Address only */
115 #define BLIST 3 /* Address only with allocation */
116 #define CLIST 4 /* Code */
117 #define ELIST 5 /* Equate only */
119 #define dot sym[0] /* Dot, current loc */
120 #define dca area[0] /* Dca, default code area */
123 /* NB: for Flat24 extentions to work, Addr_T must be at least 24
124 * bits. This is checked at runtime when the .flat24 directive
127 typedef unsigned int Addr_T;
130 * The area structure contains the parameter values for a
131 * specific program or data section. The area structure
132 * is a linked list of areas. The initial default area
133 * is "_CODE" defined in asdata.c, the next area structure
134 * will be linked to this structure through the structure
135 * element 'struct area *a_ap'. The structure contains the
136 * area name, area reference number ("_CODE" is 0) determined
137 * by the order of .area directives, area size determined
138 * from the total code and/or data in an area, area fuzz is
139 * a variable used to track pass to pass changes in the
140 * area size caused by variable length instruction formats,
141 * and area flags which specify the area's relocation type.
145 struct area *a_ap; /* Area link */
146 char a_id[NCPS]; /* Area Name */
147 int a_ref; /* Ref. number */
148 Addr_T a_addr; /* Area address */
149 Addr_T a_size; /* Area size */
150 Addr_T a_fuzz; /* Area fuzz */
151 int a_flag; /* Area flags */
155 * The "A_" area constants define values used in
156 * generating the assembler area output data.
161 * +-----+-----+-----+-----+-----+-----+-----+-----+
162 * | BIT |XDATA|DATA | PAG | ABS | OVR | | |
163 * +-----+-----+-----+-----+-----+-----+-----+-----+
166 #define A_CON 0000 /* Concatenating */
167 #define A_OVR 0004 /* Overlaying */
168 #define A_REL 0000 /* Relocatable */
169 #define A_ABS 0010 /* absolute */
170 #define A_NOPAG 0000 /* Non-Paged */
171 #define A_PAG 0020 /* Paged */
173 /* Additional flags for 8051 address spaces */
174 #define A_DATA 0000 /* data space (default)*/
175 #define A_CODE 0040 /* code space */
176 #define A_XDATA 0100 /* external data space */
177 #define A_BIT 0200 /* bit addressable space */
180 * The "R_" relocation constants define values used in
181 * generating the assembler relocation output data for
182 * areas, symbols, and code.
187 * +-----+-----+-----+-----+-----+-----+-----+-----+
188 * | MSB | PAGn| PAG0| USGN| BYT2| PCR | SYM | BYT |
189 * +-----+-----+-----+-----+-----+-----+-----+-----+
192 #define R_WORD 0x00 /* 16 bit */
193 #define R_BYTE 0x01 /* 8 bit */
195 #define R_AREA 0x00 /* Base type */
198 #define R_NORM 0x00 /* PC adjust */
201 #define R_BYT1 0x00 /* Byte count for R_BYTE = 1 */
202 #define R_BYT2 0x08 /* Byte count for R_BYTE = 2 */
204 #define R_SGND 0x00 /* Signed Byte */
205 #define R_USGN 0x10 /* Unsigned Byte */
207 #define R_NOPAG 0x00 /* Page Mode */
208 #define R_PAG0 0x20 /* Page '0' */
209 #define R_PAG 0x40 /* Page 'nnn' */
211 #define R_LSB 0x00 /* low byte */
212 #define R_MSB 0x80 /* high byte */
214 #define R_BYT3 0x100 /* if R_BYTE is set, this is a
215 * 3 byte address, of which
216 * the linker must select one byte.
218 #define R_HIB 0x200 /* If R_BYTE & R_BYT3 are set, linker
219 * will select byte 3 of the relocated
223 #define R_BIT 0x400 /* Linker will convert from byte-addressable
224 * space to bit-addressable space.
227 #define R_J11 (R_WORD|R_BYT2) /* JLH: 11 bit JMP and CALL (8051) */
228 #define R_J19 (R_WORD|R_BYT2|R_MSB) /* 19 bit JMP/CALL (DS80C390) */
229 #define R_C24 (R_WORD|R_BYT1|R_MSB) /* 24 bit address (DS80C390) */
230 #define R_J19_MASK (R_BYTE|R_BYT2|R_MSB)
232 #define IS_R_J19(x) (((x) & R_J19_MASK) == R_J19)
233 #define IS_R_J11(x) (((x) & R_J19_MASK) == R_J11)
234 #define IS_C24(x) (((x) & R_J19_MASK) == R_C24)
236 #define R_ESCAPE_MASK 0xf0 /* Used to escape relocation modes
237 * greater than 0xff in the .rel
242 * Listing Control Flags
245 #define R_HIGH 0040000 /* High Byte */
246 #define R_RELOC 0100000 /* Relocation */
248 #define R_DEF 00 /* Global def. */
249 #define R_REF 01 /* Global ref. */
250 #define R_REL 00 /* Relocatable */
251 #define R_ABS 02 /* Absolute */
252 #define R_GBL 00 /* Global */
253 #define R_LCL 04 /* Local */
256 * The mne structure is a linked list of the assembler
257 * mnemonics and directives. The list of mnemonics and
258 * directives contained in the device dependent file
259 * xxxpst.c are hashed and linked into NHASH lists in
260 * module assym.c by syminit(). The structure contains
261 * the mnemonic/directive name, a subtype which directs
262 * the evaluation of this mnemonic/directive, a flag which
263 * is used to detect the end of the mnemonic/directive
264 * list in xxxpst.c, and a value which is normally
265 * associated with the assembler mnemonic base instruction
270 struct mne *m_mp; /* Hash link */
271 char *m_id; /* Mnemonic JLH: change from [NCPS] */
272 char m_type; /* Mnemonic subtype */
273 char m_flag; /* Mnemonic flags */
274 Addr_T m_valu; /* Value */
278 * The sym structure is a linked list of symbols defined
279 * in the assembler source files. The first symbol is "."
280 * defined in asdata.c. The entry 'struct tsym *s_tsym'
281 * links any temporary symbols following this symbol and
282 * preceeding the next normal symbol. The structure also
283 * contains the symbol's name, type (USER or NEW), flag
284 * (global, assigned, and multiply defined), a pointer
285 * to the area structure defining where the symbol is
286 * located, a reference number assigned by outgsd() in
287 * asout.c, and the symbols address relative to the base
288 * address of the area where the symbol is located.
292 struct sym *s_sp; /* Hash link */
293 struct tsym *s_tsym; /* Temporary symbol link */
294 char *s_id; /* Symbol: JLH change from [NCPS] */
295 char s_type; /* Symbol subtype */
296 char s_flag; /* Symbol flags */
297 struct area *s_area; /* Area line, 0 if absolute */
298 int s_ref; /* Ref. number */
299 Addr_T s_addr; /* Address */
300 Addr_T s_org; /* Start Address if absolute */
303 #define S_GBL 01 /* Global */
304 #define S_ASG 02 /* Assigned */
305 #define S_MDF 04 /* Mult. def */
306 #define S_END 010 /* End mark for pst. */
307 #define S_BIT 020 /* address of bit in byte memory */
309 #define S_NEW 0 /* New name */
310 #define S_USER 1 /* User name */
315 #define S_BYTE 5 /* .byte */
316 #define S_WORD 6 /* .word */
317 #define S_ASCII 7 /* .ascii */
318 #define S_ASCIZ 8 /* .asciz */
319 #define S_BLK 9 /* .blkb or .blkw */
320 #define S_INCL 10 /* .include */
321 #define S_DAREA 11 /* .area */
322 #define S_ATYP 12 /* .area type */
323 #define S_AREA 13 /* .area name */
324 #define S_GLOBL 14 /* .globl */
325 #define S_PAGE 15 /* .page */
326 #define S_TITLE 16 /* .title */
327 #define S_SBTL 17 /* .sbttl */
328 #define S_IF 18 /* .if */
329 #define S_ELSE 19 /* .else */
330 #define S_ENDIF 20 /* .endif */
331 #define S_EVEN 21 /* .even */
332 #define S_ODD 22 /* .odd */
333 #define S_RADIX 23 /* .radix */
334 #define S_ORG 24 /* .org */
335 #define S_MODUL 25 /* .module */
336 #define S_ASCIS 26 /* .ascis */
337 #define S_FLAT24 27 /* .flat24 */
338 #define S_OPTSDCC 28 /* .optsdcc */
342 * The tsym structure is a linked list of temporary
343 * symbols defined in the assembler source files following
344 * a normal symbol. The structure contains the temporary
345 * symbols number, a flag (multiply defined), a pointer to the
346 * area structure defining where the temporary structure
347 * is located, and the temporary symbol's address relative
348 * to the base address of the area where the symbol
353 struct tsym *t_lnk; /* Link to next */
354 /* sandeep changed to 'int' from 'char' */
355 /* this will increase the number temp symbols
356 that can be defined from 255 to INT_MAX */
357 int t_num; /* 0-INT_MAX$ */
358 int t_flg; /* flags */
360 struct area *t_area; /* Area */
361 Addr_T t_addr; /* Address */
365 * External Definitions for all Global Variables
368 extern int aserr; /* ASxxxx error counter
370 extern jmp_buf jump_env; /* compiler dependent structure
371 * used by setjmp() and longjmp()
373 extern int inpfil; /* count of assembler
374 * input files specified
376 extern int incfil; /* current file handle index
379 extern int cfile; /* current file handle index
380 * of input assembly files
382 extern int flevel; /* IF-ELSE-ENDIF flag will be non
383 * zero for false conditional case
385 extern int tlevel; /* current conditional level
387 extern int ifcnd[MAXIF+1]; /* array of IF statement condition
388 * values (0 = FALSE) indexed by tlevel
390 extern int iflvl[MAXIF+1]; /* array of IF-ELSE-ENDIF flevel
391 * values indexed by tlevel
394 afn[PATH_MAX]; /* afile() temporary filespec
397 srcfn[MAXFIL][PATH_MAX]; /* array of source file names
400 srcline[MAXFIL]; /* current source file line
403 incfn[MAXINC][PATH_MAX]; /* array of include file names
406 incline[MAXINC]; /* current include file line
408 extern int radix; /* current number conversion radix:
409 * 2 (binary), 8 (octal), 10 (decimal),
412 extern int line; /* current assembler source
415 extern int page; /* current page number
417 extern int lop; /* current line number on page
419 extern int pass; /* assembler pass number
421 extern int lflag; /* -l, generate listing flag
423 extern int cflag; /* -c, generate sdcdb debug information
425 extern int gflag; /* -g, make undefined symbols global flag
427 extern int aflag; /* -a, make all symbols global flag
429 extern int jflag; /* -j, generate debug information flag
431 extern int oflag; /* -o, generate relocatable output flag
433 extern int sflag; /* -s, generate symbol table flag
435 extern int pflag; /* -p, enable listing pagination
437 extern int xflag; /* -x, listing radix flag
439 extern int fflag; /* -f(f), relocations flagged flag
441 extern Addr_T laddr; /* address of current assembler line
442 * or value of .if argument
444 extern Addr_T fuzz; /* tracks pass to pass changes in the
445 * address of symbols caused by
446 * variable length instruction formats
448 extern int lmode; /* listing mode
450 extern struct area area[]; /* array of 1 area
452 extern struct area *areap; /* pointer to an area structure
454 extern struct sym sym[]; /* array of 1 symbol
456 extern struct sym *symp; /* pointer to a symbol structure
458 extern struct sym *symhash[NHASH]; /* array of pointers to NHASH
459 * linked symbol lists
461 extern struct mne *mnehash[NHASH]; /* array of pointers to NHASH
462 * linked mnemonic/directive lists
464 extern char *ep; /* pointer into error list
467 extern char eb[NERR]; /* array of generated error codes
469 extern char *ip; /* pointer into the assembler-source
472 extern char ib[NINPUT]; /* assembler-source text line
474 extern char *cp; /* pointer to assembler output
477 extern char cb[NCODE]; /* array of assembler output values
479 extern int *cpt; /* pointer to assembler relocation type
482 extern int cbt[NCODE]; /* array of assembler relocation types
483 * describing the data in cb[]
485 extern char tb[NTITL]; /* Title string buffer
487 extern char stb[NSBTL]; /* Subtitle string buffer
489 extern char optsdcc[NINPUT]; /* sdcc compile options
491 extern int flat24Mode; /* non-zero if we are using DS390 24 bit
492 * flat mode (via .flat24 directive).
494 extern char symtbl[]; /* string "Symbol Table"
496 extern char aretbl[]; /* string "Area Table"
498 extern char module[NCPS]; /* module name string
500 extern FILE *lfp; /* list output file handle
502 extern FILE *ofp; /* relocation output file handle
504 extern FILE *tfp; /* symbol table output file handle
506 extern FILE *sfp[MAXFIL]; /* array of assembler-source file handles
508 extern FILE *ifp[MAXINC]; /* array of include-file file handles
510 extern unsigned char ctype[128]; /* array of character types, one per
514 extern char ccase[128]; /* an array of characters which
515 * perform the case translation function
518 * Definitions for Character Types
531 #define DGT2 DIGIT|RAD16|RAD10|RAD8|RAD2
532 #define DGT8 DIGIT|RAD16|RAD10|RAD8
533 #define DGT10 DIGIT|RAD16|RAD10
534 #define LTR16 LETTER|RAD16
537 * The exp structure is used to return the evaluation
538 * of an expression. The structure supports three valid
540 * (1) The expression evaluates to a constant,
541 * mode = S_USER, flag = 0, addr contains the
542 * constant, and base = NULL.
543 * (2) The expression evaluates to a defined symbol
544 * plus or minus a constant, mode = S_USER,
545 * flag = 0, addr contains the constant, and
546 * base = pointer to area symbol.
547 * (3) The expression evaluates to a external
548 * global symbol plus or minus a constant,
549 * mode = S_NEW, flag = 1, addr contains the
550 * constant, and base = pointer to symbol.
554 char e_mode; /* Address mode */
555 char e_flag; /* Symbol flag */
556 Addr_T e_addr; /* Address */
560 } e_base; /* Rel. base */
561 int e_rlcf; /* Rel. flags */
564 /* C Library functions */
565 /* for reference only
568 extern char * fgets();
569 extern FILE * fopen();
570 extern int fprintf();
571 extern VOID longjmp();
572 extern VOID * malloc();
578 extern char * strcpy();
580 extern char * strncpy();
583 /* Machine independent functions */
586 extern FILE * afile();
587 extern VOID asexit();
590 extern VOID newdot();
595 extern char endline();
598 extern int as_getline();
604 extern VOID chop_crlf();
607 extern struct area * alookup();
608 extern struct mne * mlookup();
610 extern struct sym * lookup();
613 extern VOID syminit();
614 extern VOID symglob();
615 extern VOID allglob();
621 extern VOID warnBanner(void);
622 extern char * geterr();
627 extern VOID abscheck();
628 extern Addr_T absexpr();
629 extern VOID clrexpr();
640 extern VOID lstsym();
646 extern int byte3(int);
649 extern VOID outarea();
651 extern VOID outall();
652 extern VOID outdot();
653 extern VOID outbuf();
654 extern VOID outchk();
655 extern VOID outgsd();
657 extern VOID outrw(struct expr *, int);
658 extern VOID outr24(struct expr *, int);
659 extern VOID outsym();
660 extern VOID out_lb();
661 extern VOID out_lw();
662 extern VOID out_l24(int, int);
663 extern VOID out_rw();
664 extern VOID out_tw();
665 extern VOID out_t24(int);
666 extern VOID outr11(); /* JLH */
667 extern VOID outr19(struct expr *, int, int);
670 extern char *StoreString( char *str );
673 extern void DefineNoICE_Line();
674 extern void DefineCDB_Line();
676 /* Machine dependent variables */
681 extern struct mne mne[];
683 /* Machine dependent functions */
686 extern VOID machine(struct mne *);