/* * picasm.h * * Copyright 1995-1998 Timo Rossi, * See the file picasm.doc for more information * * http://www.iki.fi/trossi/pic/ * */ /* * Version history: * * 1998-05-04 1.06 - fixed missing assembled code listing on lines * with labels * - added dollar-prefixed hex numbers * - allows invalid tokens in code skipped with if..endif * - shows macro line number in error messages * - better error handling * - reorganized device type/config handling * - lots of new device types added * - fixed ORG mode bug * - allows TRIS PORTC * - only warns about TRIS/OPTION with warnlevel 2 * - added ERROR directive * - HEX_EOL #define * * 1996-09-08 1.05 added PIC16F84 (same as PIC16C84A) * 1996-07-01 now defines __ symbol * symbol table listing option * 1996-06-25 1.04 small changes, makefile for Watcom C * 1996-06-06 1.03 many device table additions, * better handling of CONFIG-directive * 1996-05-17 1.02 local labels, device table additions * 1996-03-26 1.0 * ... */ #define VERSION "v1.06" #if defined(__SASC) || defined(__TURBOC__) || defined(__WATCOMC__) || defined(_MSC_VER) #define strcasecmp stricmp #define strncasecmp strnicmp #endif /* hex output end-of-line. if you need CRLFs in hex files * when running on a system which does not normally generate * them (such as Unix), change this to "\r\n" */ #define HEX_EOL "\n" /* maximum number of errors before aborting assembly */ #define MAX_ERRORS 20 /* output formats */ enum { IHX8M, IHX16 }; /* org mode */ typedef enum { O_NONE, O_PROGRAM, O_REGFILE, O_EDATA } org_mode_t ; typedef unsigned short pic_instr_t; #define INVALID_INSTR 0xffff #define INVALID_DATA 0xffff #define INVALID_CONFIG 0xffff #define INVALID_ID 0xffff /* list flags */ #define LIST_LOC 1 #define LIST_PROG 2 #define LIST_EDATA 4 #define LIST_FORWARD 8 #define LIST_VAL 0x10 #define LIST_PTR 0x20 /* inc_file types */ typedef enum { INC_FILE, INC_MACRO } inctype_t; /* * structure for include files/macros */ struct inc_file { struct inc_file *next; union { struct { FILE *fp; char *fname; } f; /* file */ struct { struct symbol *sym; struct macro_line *ml; struct macro_arg *args; int uniq_id; } m; /* macro */ } v; inctype_t type; int linenum; int cond_nest_count; }; /* * structure to hold one macro line */ struct macro_line { struct macro_line *next; char text[1]; }; /* Macro argument */ struct macro_arg { struct macro_arg *next; char text[1]; }; /* * structure for patching forward jumps */ typedef enum { PATCH11, /* 14-bit instr. set PICs */ PATCH9, /* 12-bit, goto */ PATCH8 /* 12-bit, call */ } patchtype_t; struct patch { struct patch *next; struct symbol *label; int location; patchtype_t type; }; #define PROGMEM_MAX 8192 #define EEPROM_MAX 256 /* * Definitions for different types of PIC processors */ #define INSTRSET_MASK 0xF typedef enum { PIC12BIT=1, PIC14BIT } instrset_t; typedef enum { FUSE_16C5X=1, /* most 12-bit PICs */ FUSE_12C5XX, /* 12-bit 8-pin PICs 12C508, 12C509 */ FUSE_12C6XX, /* 14-bit 8-pin PICs 12C671, 12C672 */ FUSE_16CXX1, /* 16C61, 16C71, 16C84 */ FUSE_16CXX2, /* 16C62/64/65/73/74 */ FUSE_16C6XA, /* 16C62A/63/64A/65A/66/67/72/73A/74A */ FUSE_16C55X, /* 16C554/556/558 */ FUSE_16F8X, /* 16C83/16F84 */ FUSE_16C71X, /* 16C710/711 */ FUSE_16C715, /* 16C715 */ FUSE_16C62X, /* 16C620/621/622 */ FUSE_14000 } fusetype_t; struct pic_type { char *name; int progmem_size; short regfile_limit; /* without banking */ short eeprom_size; int id_addr; int fuse_addr; fusetype_t fusetype; instrset_t instr_set; }; #define TOKSIZE 256 struct symbol { struct symbol *next; union { long value; struct macro_line *text; } v; char type; char name[1]; }; /* symbol types */ enum { SYM_MACRO, SYM_FORWARD, SYM_SET, SYM_DEFINED }; #define SYMTAB_GLOBAL 0 #define SYMTAB_LOCAL 1 /* * token codes */ /**/ enum { TOK_INVALID, TOK_EOF, TOK_NEWLINE, TOK_COLON, TOK_PERIOD, TOK_DOLLAR, TOK_COMMA, TOK_LEFTPAR, TOK_RIGHTPAR, TOK_LEFTBRAK, TOK_RIGHTBRAK, TOK_EQUAL, TOK_EQ, TOK_NOT_EQ, TOK_LESS, TOK_LESS_EQ, TOK_GREATER, TOK_GT_EQ, TOK_PLUS, TOK_MINUS, TOK_ASTERISK, TOK_SLASH, TOK_PERCENT, TOK_BITAND, TOK_BITOR, TOK_BITXOR, TOK_BITNOT, TOK_LSHIFT, TOK_RSHIFT, TOK_BACKSLASH, TOK_IDENTIFIER, TOK_LOCAL_ID, TOK_INTCONST, TOK_STRCONST, /* used as file name with include, and in EDATA */ KW_INCLUDE, KW_MACRO, KW_ENDM, KW_EXITM, KW_IF, KW_ELSE, KW_ENDIF, KW_EQU, KW_SET, KW_END, KW_ORG, KW_DS, KW_EDATA, KW_CONFIG, KW_PICID, KW_DEVICE, KW_DEFINED, KW_STREQ, KW_ISSTR, KW_CHRVAL, KW_OPT, KW_LOCAL, KW_ENDLOCAL, KW_ERROR, KW_ADDLW, KW_ADDWF, KW_ANDLW, KW_ANDWF, KW_BCF, KW_BSF, KW_BTFSC, KW_BTFSS, KW_CALL, KW_CLRF, KW_CLRW, KW_CLRWDT, KW_COMF, KW_DECF, KW_DECFSZ, KW_GOTO, KW_INCF, KW_INCFSZ, KW_IORLW, KW_IORWF, KW_MOVLW, KW_MOVF, KW_MOVWF, KW_NOP, KW_OPTION, KW_RETFIE, KW_RETLW, KW_RETURN, KW_RLF, KW_RRF, KW_SLEEP, KW_SUBLW, KW_SUBWF, KW_SWAPF, KW_TRIS, KW_XORLW, KW_XORWF, KW_END_POS /* end marker */ }; #define FIRST_KW KW_INCLUDE #define NUM_KEYWORDS (KW_END_POS-FIRST_KW) /* * truth values for boolean functions */ #define EXPR_FALSE (0) #define EXPR_TRUE (~0) /* number of bits in an expression value */ #define EXPR_NBITS 32 /* * Success/failure return codes for functions */ #define OK (0) #define FAIL (-1) /* * variable declarations */ /* picasm.c */ extern struct inc_file *current_file; extern char *line_buf_ptr; extern char line_buffer[256]; extern int unique_id_count; extern int cond_nest_count; extern org_mode_t O_Mode; extern int prog_location, reg_location, edata_location, org_val; extern int warnlevel; extern struct patch **local_patch_list_ptr; extern int prog_mem_size; extern unsigned short list_flags; extern struct pic_type *pic_type; extern pic_instr_t config_fuses; extern int local_level; /* token.c */ extern int token_type, line_buf_off; extern char token_string[TOKSIZE]; extern long token_int_val; extern int tok_char; extern int ifskip_mode; /* expr.c */ extern int expr_error; /* * function prototypes */ /* picasm.c */ void *mem_alloc(int size); #define mem_free(p) free(p) void fatal_error(char *, ...), error(int, char *, ...), warning(char *, ...); void write_listing_line(int cond_flag); void gen_code(int val); void add_patch(int tab, struct symbol *sym, patchtype_t type); int gen_byte_c(int instr_code); /* config.c */ void parse_config(void); /* token.c */ void get_token(void), skip_eol(void); void expand_macro(struct symbol *sym); void begin_include(char *fname), end_include(void); void read_src_char(void); /* symtab.c */ void init_symtab(void); void add_local_symtab(void); void remove_local_symtab(void); struct symbol *add_symbol(char *name, int tab); struct symbol *lookup_symbol(char *name, int tab); void dump_symtab(FILE *); /* expr.c */ long get_expression(void); /* pic12bit.c */ int assemble_12bit_mnemonic(int op); /* pic14bit.c */ int assemble_14bit_mnemonic(int op);