/* * Change history * $Log: defs.h,v $ * Revision 3.0 93/09/24 17:54:36 Martin_Apel * New feature: Added extra 68040 FPU opcodes * * Revision 2.4 93/07/18 22:57:05 Martin_Apel * *** empty log message *** * * Revision 2.3 93/07/11 21:40:10 Martin_Apel * Major mod.: Jump table support tested and changed * * Revision 2.2 93/07/10 13:02:39 Martin_Apel * Major mod.: Added full jump table support. Seems to work quite well * * Revision 2.1 93/07/08 20:50:47 Martin_Apel * Minor mod.: Added print_flags for debugging purposes * * Revision 2.0 93/07/01 11:55:04 Martin_Apel * *** empty log message *** * * Revision 1.30 93/07/01 11:46:54 Martin_Apel * Minor mod.: Prepared for tabs instead of spaces * * Revision 1.29 93/06/19 12:12:20 Martin_Apel * Major mod.: Added full 68030/040 support * * Revision 1.28 93/06/16 20:31:52 Martin_Apel * Minor mod.: Removed #ifdef FPU_VERSION and #ifdef MACHINE68020 * Minor mod.: Added variables for 68030 / 040 support * * Revision 1.27 93/06/06 13:48:45 Martin_Apel * Minor mod.: Added preliminary support for jump tables recognition * Minor mod.: Replaced first_pass and read_symbols by pass1, pass2, pass3 * * Revision 1.26 93/06/06 00:16:26 Martin_Apel * Major mod.: Added support for library/device disassembly (option -dl) * * Revision 1.25 93/06/04 11:57:34 Martin_Apel * New feature: Added -ln option for generation of ascending label numbers * * Revision 1.24 93/06/03 20:31:01 Martin_Apel * New feature: Added -a switch to generate comments for file offsets * * Revision 1.23 93/06/03 18:28:15 Martin_Apel * Minor mod.: Added new prototypes an variables for hunk-handling routines. * Minor mod.: Remove temporary files upon exit (even with CTRL-C). * */ #include #include #ifdef MCH_AMIGA #ifndef AMIGA #define AMIGA #endif #endif /* $Id: defs.h,v 3.0 93/09/24 17:54:36 Martin_Apel Exp $ */ struct opcode_entry { int (*handler) (struct opcode_entry*); char *mnemonic; unsigned short param; /* given to handler () */ unsigned char modes; /* addressing modes allowed for this opcode */ unsigned char submodes; /* addressing submodes of mode 7 allowed for this opcode */ unsigned short chain; /* if another opcode is possible for */ /* this bit pattern, this is the index */ /* of another entry in opcode_table. */ /* Otherwise it's zero */ }; #define TRANSFER 0 /* The handler didn't handle this opcode */ /* Transfer to next in chain */ /* Param values */ /* General */ #define MEM 9 #define REG 10 /* Bitfield instructions */ #define DATADEST 0 #define DATASRC 1 #define SINGLEOP 2 /* MOVE to or from SR, CCR */ #define TO_CCR 0 #define FROM_CCR 1 #define TO_SR 2 #define FROM_SR 3 /* Extended precision and BCD instructions */ #define NO_ADJ 0 #define ADJUST 1 /* Bit masks */ #define EA_MODE 0x038 /* Bits 5 - 3 */ #define EA_REG 0x007 /* Bits 2 - 0 */ #define REG2 0xe00 /* Bits 11 - 9 */ #define OP_MODE 0x1c0 /* Bits 8 - 6 */ /* Shift values */ #define MODE_SHIFT 3 #define REG2_SHIFT 9 #define OP_MODE_SHIFT 6 #define MODE_NUM(x) ((short)(((x) >> 3) & 0x7)) #define REG_NUM(x) ((short)((x) & EA_REG)) #define USE_SIGN TRUE #define NO_SIGN FALSE #define USE_LABEL TRUE #define NO_LABEL FALSE #define USE_COMMENT TRUE #define NO_COMMENT FALSE #define DEF_BUF_SIZE (10L * 1024L) enum { SR, CCR, USP, SFC, DFC, CACR, VBR, CAAR, MSP, ISP, TC, ITT0, ITT1, DTT0, DTT1, MMUSR, URP, SRP, TT0, TT1, CRP }; /* Access types for reference table. */ #define NO_ACCESS (UWORD)0x00 /* not referenced yet */ #define ACC_BYTE (UWORD)0x01 /* referenced as bytewide data */ #define ACC_WORD (UWORD)0x02 #define ACC_LONG (UWORD)0x04 #define ACC_DOUBLE (UWORD)0x08 #define ACC_EXTEND (UWORD)0x10 #define ACC_CODE (UWORD)0x20 /* referenced as code */ #define ACC_DATA (UWORD)0x40 /* referenced as data, but size unknown */ #define ACC_UNKNOWN (UWORD)0x80 /* accessed but it's unknown, if it's code */ /* or data */ #define OPCODE_COL 20 /* at which column opcode and params are */ #define PARAM_COL 35 /* placed */ #define COMMENT_COL 60 #define PC (short)16 /* index into reg_names array */ #define TMP_CODE 0x01 #define TMP_DATA 0x02 #define TMP_STRING 0x04 #define PERM_CODE 0x08 #define PERM_DATA 0x10 #define PERM_STRING 0x20 #define PERM_RELOC 0x40 #define NEW 0x80 #define PERM_MASK (PERM_CODE|PERM_DATA|PERM_STRING) #define TMP_MASK (TMP_CODE|TMP_DATA|TMP_STRING) #define PERM2TMP 3 /* Shift value to restore old settings */ /* for TMP bits */ #define TMP2PERM 3 /* Shift value to save settings */ /* settings for PERM bits */ /* Restore old settings of flag bits */ #define RESTORE(x) {\ (x) = ((x) & (PERM_MASK | PERM_RELOC)) |\ (((x) & PERM_MASK) >> PERM2TMP);\ } #define SAVE(x) {\ (x) |= ((x) & TMP_MASK) << TMP2PERM;\ (x) &= ~NEW;\ } #define SAVE_LONG(x) {\ (x) |= ((x) & (TMP_MASK | (TMP_MASK << 8) |\ (TMP_MASK << 16) | (TMP_MASK << 24)))\ << TMP2PERM;\ (x) &= ~(NEW | (NEW << 8) | (NEW << 16) | (NEW << 24));\ } #define IS_RELOCATED(address) (*(flags + (address) - first_address) & PERM_RELOC) #define IS_CODE(address) (*(flags + (address) - first_address) & TMP_CODE) #define IS_DATA(address) (*(flags + (address) - first_address) & TMP_DATA) #define IS_STRING(address) (*(flags + (address) - first_address) & TMP_STRING) #define IS_SURE(address) (*(flags + (address) - first_address) &\ (TMP_CODE | TMP_DATA)) #define IS_PROBABLE(address) (*(flags + (address) - first_address) &\ (TMP_CODE | TMP_DATA | TMP_STRING)) #define IS_NEW(address) (*(flags + (address) - first_address) & NEW) #define IS_RELOCATED_P(ptr) (*(ptr) & PERM_RELOC) #define IS_CODE_P(ptr) (*(ptr) & TMP_CODE) #define IS_DATA_P(ptr) (*(ptr) & TMP_DATA) #define IS_STRING_P(ptr) (*(ptr) & TMP_STRING) #define IS_SURE_P(ptr) (*(ptr) & (TMP_CODE | TMP_DATA)) #define IS_PROBABLE_P(ptr) (*(ptr) & (TMP_CODE | TMP_DATA | TMP_STRING)) #define IS_NEW_P(address) (*(ptr) & NEW) #define TMP_FILENAME "t:ADis68k" /* Marker for jump-tables */ #define UNSET 0xffffffffL #define ODD(x) ((x) & 1) #define EVEN(x) (!ODD(x)) extern unsigned short *code; extern char opcode []; extern char src []; extern char dest []; extern char instruction []; extern struct opcode_entry opcode_table []; extern struct opcode_entry mmu_opcode_table []; extern unsigned long current_address; extern unsigned long first_address; /* start address of current hunk */ extern unsigned long last_address; /* last address of current hunk */ extern unsigned long current_hunk; extern unsigned long total_size; extern unsigned char *flags; extern BOOL end_instr; extern BOOL verbose; extern char *reg_names []; extern char *special_regs []; extern char *conditions []; extern FILE *in, *out, *tmp_f; extern char *in_buf, *out_buf; extern char *input_filename; extern char output_filename[]; extern int buf_size; extern BOOL try_small; extern long a4_offset; extern long *hunk_start, *hunk_end, *hunk_offset; extern BOOL pass1, pass2, pass3; extern BOOL detected_illegal; extern BOOL mc68020, mc68881, ext_68020_modes, mc68030, mc68040; extern BOOL disasm_quick; extern BOOL print_illegal_instr_address; extern BOOL warning_printed; extern BOOL user_wants_single_file, user_wants_separate_files; extern BOOL add_file_offset; extern BOOL single_file; extern int num_code_hunks; extern int num_data_hunks; extern int num_bss_hunks; extern int num_hunks; extern long f_offset; /* pointer to format_line function: */ extern void (*format_line) (BOOL, BOOL); extern BOOL ascending_label_numbers; #ifdef AMIGA extern BOOL disasm_as_lib; extern BOOL ROMTagFound; #endif extern short mc68020_disabled []; extern short mc68030_disabled []; extern short mc68040_disabled []; extern short mc68881_disabled []; extern BOOL use_tabs; extern short tabsize; /* Prototypes */ /* analyze.c */ void save_flags(void); void restore_flags(void); #ifdef DEBUG void get_first_code_label(void); void examine_direct_refs(unsigned short *seg, unsigned long seg_size); short examine_unknown_labels(unsigned short *seg, unsigned long seg_size); short guess(unsigned short *seg, unsigned long seg_size); void last_touch(unsigned short *seg, unsigned long seg_size); #endif void disasm_code_1st(unsigned short *seg, unsigned long seg_size); #ifdef DEBUG void print_flags (ULONG from); #endif /* decode_ea.c */ int decode_ea (short mode, short reg, char *where_to, short access, short first_ext); /* disasm_code.c */ short disasm_instr (void); void disasm_code (USHORT *seg, ULONG seg_size); void disasm_code_1st (USHORT *seg, ULONG seg_size); /* disasm_data.c */ void disasm_data (UBYTE *data_seg, ULONG seg_size); void disasm_bss (void); /* main.c */ void main (int argc, char *argv []); void parse_args (int argc, char *argv []); #ifdef DEBUG void Usage (void); #endif void open_files (void); void close_files (void); void open_output_file (void); void close_output_file (void); void ExitADis (void); #ifdef AZTEC_C void _abort (void); #endif #ifdef DEBUG void check_consistency (void); #endif /* util.c */ char *format_d (char *where, short val, BOOL sign); char *format_ld (char *where, long val, BOOL sign); char *format_ld_no_dollars (char *where, long val, BOOL sign); void format_reg_list (char *where, unsigned short list, BOOL to_mem, short reglist_offset); char *immed (char *to, long val); void pre_dec (char *to, short reg_num); void post_inc (char *to, short reg_num); void indirect (char *to, short reg_num); void disp_an (char *to, short reg_num, short disp); void disp_an_indexed (char *to, short an, char disp, short index_reg, short scale, short size); int full_extension (char *to, unsigned short *extension, short mode, short reg); void format_line_spaces (BOOL labeled, BOOL commented); int gen_label (char *where_to, ULONG ref, BOOL anyway); BOOL is_string (char *maybe_string, ULONG max_len); void put (char *string); char *cpstr (char *dest, char *src, int max_len); void gen_xref (ULONG address); void assign_label_names (void); void mark_entry_illegal (int entry); /* hunks.c */ long getlong(void); unsigned short getword(void); BOOL readfile(void); BOOL read_hunk_header(void); BOOL read_hunk_overlay(void); BOOL read_code_hunk(void); BOOL read_data_hunk(void); BOOL read_bss_hunk(void); BOOL read_symbol_hunk(void); BOOL read_reloc32_hunk(USHORT *hunk_start); BOOL read_reloc16_hunk(USHORT *hunk_start); /* ref_table.c */ BOOL init_ref_table (ULONG size); void kill_ref_table (void); void enter_ref (ULONG offset, char *name, UWORD access_type); ULONG ext_enter_ref (ULONG offset, ULONG hunk, char *name, UWORD access_type); BOOL find_reference (ULONG offset, char **name, UWORD *access_type); BOOL find_active_reference (ULONG offset, char **name, UWORD *access_type); ULONG next_reference (ULONG from, ULONG to, UWORD *access); ULONG next_active_reference (ULONG from, ULONG to, UWORD *access); void deactivate_labels (ULONG from, ULONG to); void make_labels_permanent (void); void delete_tmp_labels (void); /* mem.c */ void *get_mem(unsigned long size); void release_mem(void *buffer); /* user_defined.c */ void predefine_label(unsigned long address, unsigned short access); void add_predefined_labels(void); #ifdef DEBUG void print_ref_table (ULONG from, ULONG to); void print_active_table (ULONG from, ULONG to); void check_active_table (void); #endif #ifdef DEBUG #define PRIVATE #else #define PRIVATE static #endif /* opcode_handler.c */ int bit_reg (struct opcode_entry *op); int bit_mem (struct opcode_entry *op); int move (struct opcode_entry *op); int movem (struct opcode_entry *op); int moveq (struct opcode_entry *op); int srccr (struct opcode_entry *op); int special (struct opcode_entry *op); int off_illegal (struct opcode_entry *op); int illegal (struct opcode_entry *op); int immediate (struct opcode_entry *op); int ori_b (struct opcode_entry *op); int single_op (struct opcode_entry *op); int end_single_op (struct opcode_entry *op); int dual_op (struct opcode_entry *op); int quick (struct opcode_entry *op); int branch (struct opcode_entry *op); int dbranch (struct opcode_entry *op); int shiftreg(struct opcode_entry *op); int op_w (struct opcode_entry *op); int op_l (struct opcode_entry *op); int restrict(struct opcode_entry *op); int scc (struct opcode_entry *op); int exg (struct opcode_entry *op); int movesrccr (struct opcode_entry *op); int cmpm (struct opcode_entry *op); int movep (struct opcode_entry *op); int bkpt (struct opcode_entry *op); int muldivl (struct opcode_entry *op); int bf_op (struct opcode_entry *op); int trapcc (struct opcode_entry *op); int chkcmp2 (struct opcode_entry *op); int cas (struct opcode_entry *op); int cas2 (struct opcode_entry *op); int moves (struct opcode_entry *op); int link_l (struct opcode_entry *op); int move16 (struct opcode_entry *op); int cache (struct opcode_entry *op); #define SNG_ALL 1 /* Single operand syntax allowed */ /* fpu_opcodes.c */ extern struct opcode_entry fpu_opcode_table []; extern char *xfer_size []; extern short sizes []; extern char *fpu_conditions []; /* opcode_handler_fpu.c */ int fpu (struct opcode_entry *op); int std_fpu (struct opcode_entry *op); int fsincos (struct opcode_entry *op); int fscc (struct opcode_entry *op); int fbranch (struct opcode_entry *op); int fdbranch (struct opcode_entry *op); int ftrapcc (struct opcode_entry *op); /* opcode_handler_mmu.c */ int pflush40(struct opcode_entry *op); int ptest40(struct opcode_entry *op); int mmu30(struct opcode_entry *op); int ptest30(struct opcode_entry *op); int pfl_or_ld(struct opcode_entry *op); int pflush30(struct opcode_entry *op); int pmove30(struct opcode_entry *op); /* amiga.c */ BOOL user_aborted_analysis (void); void delete_tmp_files (void); #ifdef AMIGA BOOL add_lib_labels (UWORD *seg); #endif /* version.c */ void print_version (void); /* jmptab.c */ void free_jmptab_list (void); void enter_jmptab (ULONG start, ULONG offset); BOOL next_code_ref_from_jmptab (UWORD *seg); BOOL invalidate_last_jmptab_entry (void); BOOL find_jmptab_and_print (char *string); #ifdef DEBUG void print_jmptab_list (void); #endif