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Assembly Source File | 1992-01-27 | 59KB | 1,918 lines

comment ~ Deziper ~ _TEXT SEGMENT PUBLIC 'CODE' ASSUME CS:_TEXT,DS:_TEXT,ES:_TEXT,SS:_TEXT ORG 100H START: JMP MAIN ; DATA AREA ; --------- DB CR,SPACE,SPACE,SPACE,CR,LF COPYRIGHT DB "PCUNZIP 1.0 Copyright (c) 1992 Michael J. Mefford",CR,LF FIRST_RIGHTS DB "First Published in PC Magazine, March 31, 1992",CR,LF,LF SYNTAX DB "Syntax: PCUNZIP filename [\path] [/v] [/e] [/o] [/?]",CR,LF,LF DB "/e filespec = extract specific file",CR,LF DB "/v [filespec] = view zipped files",CR,LF DB "/o = overwrite any existing files",CR,LF,LF DB "Putting a filename after /e will extract a specific; required",CR,LF DB "Putting a filename after /v will list a specific file",CR,LF,LF,"$" CR = 13 LF = 10 CTRL_Z = 26 SPACE = 32 BELL = 7 Y_SCAN = 15H N_SCAN = 31H TRUE = 1 FALSE = 0 KILOBYTES = 1024 PARAGRAPH = 16 DTA = 80H MATCHING STRUC RESERVED DB 21 DUP (?) ATTR DB ? DW ? DW ? DW ? DW ? FILE_NAME DB 13 DUP (?) MATCHING ENDS LOCAL_HEADER STRUC SIGNATURE DB "PK",3,4 EXTRACT_VER DW ? BIT_FLAG DW ? ZIP_TYPE DW ? FILE_TIME DW ? FILE_DATE DW ? CRC_32 DW ?,? COMPRESS_SIZE DW ?,? UNCOMPRESS_SIZE DW ?,? FILENAME_LEN DW ? EXTRA_FIELD_LEN DW ? LOCAL_HEADER ENDS LOCAL_SIG DB "PK",3,4 CENTRAL_SIG DB "PK",1,2 ;Unshrink stuff MIN_CODE_SIZE = 9 MAX_CODE_SIZE = 13 SPECIAL_CODE = 256 FIRST_FREE = 257 TRIE_SIZE = (1 SHL MAX_CODE_SIZE) + 1 FREE = -1 PREFIX_SIZE = TRIE_SIZE * 2 ;Word SUFFIX_SIZE = TRIE_SIZE * 2 ;Char + void READ_SIZE = 127 * 512 WRITE_SIZE = 127 * 512 DIR_SIZE = 66 LOCAL_STACK = 512 PREFIX_P = PREFIX_SIZE / PARAGRAPH SUFFIX_P = SUFFIX_SIZE / PARAGRAPH READ_P = READ_SIZE / PARAGRAPH WRITE_P = WRITE_SIZE / PARAGRAPH ;Explode stuff SF_TREE STRUC BIT_LENGTH DB ? VALUE DB ? TREE_CODE DW ? SF_TREE ENDS LIT_TREE_SIZE = 256 * SIZE SF_TREE LEN_TREE_SIZE = 64 * SIZE SF_TREE DIST_TREE_SIZE = 64 * SIZE SF_TREE TREE_ENTRIES = - 2 ;Expand stuff FOLLOWER STRUC SET_LEN DB ? SET DB 32 DUP (?) PAD DB ? FOLLOWER ENDS READ_SEG DW ? WRITE_SEG DW ? DIR_LEN = 65 NAME_LEN = 12 ZIP_LEN = DIR_LEN + NAME_LEN OUTFILE DB NAME_LEN DUP (?), 0 ZIP_NAME DB ZIP_LEN DUP (?), 0 DIR_NAME DB ZIP_LEN DUP (?), 0 SPECIFIC_NAME DB NAME_LEN DUP (?), 0 VIEW_NAME DB 39 DUP (?) DB CR,LF,"$" SEARCH_LEN DW ZIP_LEN SEARCH_NAME DW ZIP_NAME FREE_NODE DW FIRST_FREE * 2 EXTRACTOR DW ? RUNNING_CRC_32 DW ?,? BITS_LEFT DB ? CODE_BITS DB ? SAVE_BYTE DB ? ATTRIBUTE DB ? SPIN_CNT DB 0 SPIN_INDEX DW 0 SPINNERS DB "/|\" SPECIFIC_FLAG DB FALSE ;=TRUE if extract individual file. VIEW_FLAG DB FALSE ;=TRUE if view zipped files. EXTRACTED_FLAG DB FALSE ;=TRUE if a file was extracted. OVERWRITE_FLAG DB FALSE ;=TRUE if overwrite existing. ZIP_EXT DB ".ZIP" MEMORY_MSG DB "Not enough memory" CR_LF_LF DB LF CR_LF DB CR,LF,"$" ZIP_MSG DB "Zip header not found$" FAILED_MSG DB "Extracted file maybe corrupt",BELL,"$" DISK_MSG DB "Not enough free disk space to extract file$" ENCRYPTED_MSG DB "File is encrypted$" NOT_FOUND_MSG DB "File not found$" EXISTS_MSG DB " already exists. Overwrite (Y/N)?$" UNKNOWN_MSG DB "Unknown compression method$" INVALID_MSG DB "Invalid drive$" DIR_MSG DB "Invalid target directory$" SYNTAX_MSG DB "Syntax error$" ; CODE AREA ; --------- MAIN PROC NEAR CLD XOR BH,BH MOV AH,8 INT 10H MOV ATTRIBUTE,AH MOV BX,OFFSET STACK_POINTER + 15 MOV CL,4 SHR BX,CL ADD BX,PREFIX_P + SUFFIX_P + READ_P + WRITE_P MOV AH,4AH ;Allocate memory. INT 21H JNC SETUP_STACK MOV DX,OFFSET MEMORY_MSG JMP SHORT ERROR_EXIT ;If not enough, exit. SETUP_STACK: MOV AX,OFFSET STACK_POINTER MOV SP,AX ;Set up stack. ADD AX,15 MOV CL,4 SHR AX,CL MOV CX,DS ADD AX,CX ADD AX,PREFIX_P + SUFFIX_P MOV READ_SEG,AX ADD AX,READ_P MOV WRITE_SEG,AX CALL PARSE JC ERROR_EXIT MOV DX,OFFSET ZIP_NAME XOR CX,CX MOV AH,4EH INT 21H JMP SHORT DO_EXTRACT NEXT_EXTRACT: CALL WRITE_CRLF NEXT_EXTRACT2: MOV BX,READ_HANDLE MOV AH,3EH INT 21H PUSH CS POP ES MOV AH,4FH INT 21H JNC DO_EXTRACT GOOD_EXIT: XOR AL,AL JMP SHORT EXIT DO_EXTRACT: MOV SI,OFFSET DTA.FILE_NAME MOV DI,OFFSET ZIP_NAME CALL FORM_NAME MOV DX,OFFSET ZIP_NAME MOV AX,3D00H INT 21H MOV DX,OFFSET NOT_FOUND_MSG JC ERROR_EXIT MOV READ_HANDLE,AX CALL EXTRACT JNC NEXT_EXTRACT CMP DX,OFFSET ZIP_MSG JZ NEXT_EXTRACT2 ERROR_EXIT: PUSH DX CALL WRITE_CRLF POP DX CALL PRINT_STRING CALL WRITE_CRLFLF MOV DX,OFFSET COPYRIGHT CALL PRINT_STRING MOV AL,1 EXIT: MOV AH,4CH INT 21H MAIN ENDP ;************** ; SUBROUTINES * ;************** ;OUTPUT: CF=1 if parse fail. PARSE: MOV SEARCH_LEN,ZIP_LEN MOV SEARCH_NAME,OFFSET ZIP_NAME MOV SI,81H NEXT_PARSE: CALL PARSE_DELIMIT LODSB CMP AL,CR JZ PARSE_DONE CMP AL,"-" JZ SWITCH CMP AL,"/" JNZ DO_FILENAME SWITCH: CALL PARSE_SWITCH JC PARSE_END JMP NEXT_PARSE DO_FILENAME: DEC SI MOV CX,SEARCH_LEN MOV DI,SEARCH_NAME CALL STORE_SEARCH MOV SEARCH_LEN,DIR_LEN MOV SEARCH_NAME,OFFSET DIR_NAME JMP NEXT_PARSE PARSE_DONE: MOV DX,OFFSET SYNTAX_MSG CMP BYTE PTR ZIP_NAME,0 STC JZ PARSE_END MOV DX,OFFSET ZIP_NAME XOR CX,CX MOV AH,4EH INT 21H JNC FOUND_ZIP CALL TACK_ZIP MOV DX,OFFSET ZIP_NAME XOR CX,CX MOV AH,4EH INT 21H MOV DX,OFFSET NOT_FOUND_MSG JC PARSE_END FOUND_ZIP: CMP DIR_NAME,0 JZ PARSE_END MOV SI,OFFSET DIR_NAME NEXT_DIR_END: LODSB OR AL,AL JNZ NEXT_DIR_END DEC SI DEC SI CMP BYTE PTR [SI],":" JZ PARSE_END MOV DX,OFFSET DIR_NAME MOV CX,10H MOV AH,4EH INT 21H MOV DX,OFFSET DIR_MSG JC PARSE_END TEST BYTE PTR DS:[DTA.ATTR],10H STC JZ PARSE_END CMP BYTE PTR [SI],"\" JZ PARSE_END MOV BYTE PTR [SI+1],"\" CLC PARSE_END: RET ;----------------------; PARSE_DELIMIT: LODSB CMP AL,CR JZ DELIMIT_END CMP AL,SPACE JBE PARSE_DELIMIT DELIMIT_END: DEC SI RET ;----------------------; PARSE_SWITCH: CALL PARSE_DELIMIT CMP AL,CR JZ SWITCH_ERROR LODSB AND AL,5FH CMP AL,"V" JNZ CK_O MOV VIEW_FLAG,TRUE CALL PARSE_DELIMIT CMP AL,CR JZ SWITCH_GOOD JMP SHORT DO_SPECIFIC CK_O: CMP AL,"O" JNZ CK_E MOV OVERWRITE_FLAG,TRUE JMP SHORT SWITCH_GOOD CK_E: CMP AL,"E" JNZ SWITCH_ERROR CALL PARSE_DELIMIT CMP AL,CR JZ SWITCH_ERROR MOV SPECIFIC_FLAG,TRUE DO_SPECIFIC: MOV CX,NAME_LEN MOV DI,OFFSET SPECIFIC_NAME CALL STORE_SEARCH SWITCH_GOOD: CLC JMP SHORT SWITCH_END SWITCH_ERROR: MOV DX,OFFSET SYNTAX_MSG STC SWITCH_END: RET ;----------------------; ; INPUT: DI-> storage; CX=length. STORE_SEARCH: LODSB CMP AL,CR JZ STORE_DONE CMP AL,SPACE JBE STORE_END2 CMP AL,"a" JB STORE_SEARCH2 CMP AL,"z" JA STORE_SEARCH2 AND AL,5FH STORE_SEARCH2: STOSB LOOP STORE_SEARCH JMP SHORT STORE_END2 STORE_DONE: DEC SI STORE_END2: RET ;----------------------; TACK_ZIP: MOV SI,OFFSET ZIP_NAME MOV CX,ZIP_LEN - 4 NEXT_TACK: LODSB CMP AL,"." JZ TACK_IT CMP AL,0 JZ TACK_IT LOOP NEXT_TACK JMP SHORT TACK_END TACK_IT: DEC SI MOV DI,SI MOV SI,OFFSET ZIP_EXT MOV CX,4 REP MOVSB TACK_END: RET ;----------------------------------------------; ; INPUT: SI-> name; DI-> storage. FORM_NAME: PUSH SI MOV SI,DI NEW_END: MOV BX,SI FIND_END: LODSB CMP AL,":" JZ NEW_END CMP AL,"\" JZ NEW_END OR AL,AL JNZ FIND_END POP SI MOV DI,BX FORM_NAME2: LODSB STOSB OR AL,AL JNZ FORM_NAME2 RET ;----------------------------------------------; ;OUTPUT: If CF=1 then DX = failed msg. EXTRACT: MOV BYTES_TO_READ[0],SIZE LOCAL_HEADER MOV BYTES_TO_READ[2],0 CALL READ_ZIP JNC CK_HEADER JMP FAILED CK_HEADER: MOV ES,READ_SEG MOV SI,OFFSET LOCAL_SIG XOR DI,DI MOV CX,4 REPZ CMPSB JZ PROCESS MOV SI,OFFSET CENTRAL_SIG XOR DI,DI MOV CX,4 REPZ CMPSB JNZ PROCESS_ERR CLC JMP EXTRACT_END PROCESS_ERR: MOV DX,OFFSET ZIP_MSG PROCESS_ERR2: JMP FAILED2 PROCESS: CALL PROCESS_HEADER JNC PROCESS2 JMP FAILED2 PROCESS2: CALL READ_ZIP JC LILLY_FAIL MOV BYTES_TO_READ[0],AX MOV BYTES_TO_READ[2],BX CALL GET_FILENAME JC EXTRACT MOV DX,OFFSET DIR_NAME XOR CX,CX MOV AH,3CH INT 21H LILLY_FAIL: JC FAILED MOV WRITE_HANDLE,AX MOV RUNNING_CRC_32[0],-1 MOV RUNNING_CRC_32[2],-1 CMP BYTES_TO_READ[0],0 JNZ PROCESS3 CMP BYTES_TO_READ[2],0 JZ PROCESS4 PROCESS3: CALL READ_ZIP JC FAILED MOV SAVE_BYTE,0 MOV BITS_LEFT,0 CALL [EXTRACTOR] PUSHF MOV AL,SPACE CALL SPIN_IT CALL WRITE_CRLFLF POPF JC FAILED CALL WRITE JC FAILED PROCESS4: MOV BX,WRITE_HANDLE MOV CX,TIME_STAMP MOV DX,DATE_STAMP MOV AX,5701H INT 21H JC FAILED MOV AH,3EH INT 21H CALL CK_CRC JC FAILED CMP BYTES_TO_READ[0],0 JNZ FAILED CMP BYTES_TO_READ[2],0 JNZ FAILED MOV EXTRACTED_FLAG,TRUE JMP EXTRACT FAILED: MOV DX,OFFSET FAILED_MSG FAILED2: STC EXTRACT_END: RET ;----------------------------------------------; ; INPUT:CX=FILENAME_LEN; OUTPUT: CF=1 if skipped. END_FILENAME DW ? GET_FILENAME: MOV AX,CS MOV ES,AX MOV DI,OFFSET OUTFILE PUSH DS MOV DS,READ_SEG XOR SI,SI NEXT_FILENAME: LODSB CMP AL,"/" JNZ STORE_NAME MOV DI,OFFSET OUTFILE JMP SHORT STORE_NAME2 STORE_NAME: STOSB STORE_NAME2: LOOP NEXT_FILENAME MOV SI,DI XOR AL,AL STOSB POP DS MOV SI,OFFSET OUTFILE MOV DI,OFFSET DIR_NAME CALL FORM_NAME DEC DI MOV END_FILENAME,DI CALL VIEW_OR_SPEC JC FILENAME_END MOV DX,OFFSET DIR_NAME MOV AX,3D00H INT 21H CMC JNC FILENAME_END MOV BX,AX MOV AH,3EH INT 21H CMP OVERWRITE_FLAG,TRUE CLC JZ FILENAME_END CALL WRITE_FILENAME MOV DX,OFFSET EXISTS_MSG CALL PRINT_STRING CK_KEY: MOV AH,1 ;Is there a keystroke available. INT 16H JZ NEXT_KEY CLEAR_IT: XOR AH,AH INT 16H JMP CK_KEY NEXT_KEY: XOR AH,AH INT 16H CLC CMP AH,Y_SCAN JZ CONTINUE CMP AL,3 ;Ctrl break JNZ CK_N JMP GOOD_EXIT CK_N: CMP AH,N_SCAN JNZ NEXT_KEY MOV DX,BYTES_TO_READ[0] MOV CX,BYTES_TO_READ[2] MOV BX,READ_HANDLE MOV AX,4201H INT 21H STC CONTINUE: PUSHF CALL WRITE_CRLFLF POPF FILENAME_END: RET ;----------------------; ; OUTPUT: CF=1 of should not be extracted. VIEW_OR_SPEC: CMP VIEW_FLAG,TRUE JNZ CK_SPECIFIC CMP SPECIFIC_NAME,0 JZ DO_DISPLAY CALL CK_MATCH JC ADVANCE_FILE DO_DISPLAY: CALL DISPLAY_NAME JMP SHORT ADVANCE_FILE CK_SPECIFIC: CMP SPECIFIC_FLAG,TRUE CLC JNZ V_OR_S_END CALL CK_MATCH JNC V_OR_S_END ADVANCE_FILE: MOV DX,BYTES_TO_READ[0] MOV CX,BYTES_TO_READ[2] MOV BX,READ_HANDLE MOV AX,4201H INT 21H JC V_OR_S_END CMC V_OR_S_END: RET ;----------------------; ; OUTPUT: CF=1 if no match. CK_MATCH: MOV SI,OFFSET SPECIFIC_NAME MOV DI,OFFSET OUTFILE NEXT_NAME: LODSB MOV AH,[DI] CMP AL,"*" JZ FIND_DOT CK_Q: CMP AL,"?" JNZ COMPARE_NAME OR AH,AH JZ NEXT_NAME CMP AH,"." JZ NEXT_NAME INC DI JMP NEXT_NAME COMPARE_NAME: INC DI CMP AL,AH JNZ NO_MATCH OR AL,AL JZ MATCH CMP AL,"." JNZ NEXT_NAME JMP SHORT NEXT_EXT FIND_DOT: LODSB CMP AL,"." JZ DO_OUTFILE OR AL,AL JNZ FIND_DOT DEC SI DO_OUTFILE: MOV AL,[DI] OR AL,AL JZ NEXT_EXT INC DI CMP AL,"." JNZ DO_OUTFILE NEXT_EXT: LODSB MOV AH,[DI] CMP AL,"*" JZ MATCH CMP AL,"?" JNZ COMPARE_EXT OR AH,AH JZ NEXT_EXT INC DI JMP NEXT_EXT COMPARE_EXT: INC DI CMP AL,AH JNZ NO_MATCH OR AL,AL JNZ NEXT_EXT MATCH: CLC JMP SHORT CK_MATCH_END NO_MATCH: STC CK_MATCH_END: RET ;----------------------; DISPLAY_NAME: MOV EXTRACTED_FLAG,TRUE MOV DI,OFFSET VIEW_NAME MOV AL,SPACE MOV CX,SIZE VIEW_NAME REP STOSB MOV SI,OFFSET OUTFILE ;Point to filename. MOV DI,OFFSET VIEW_NAME MOV CX,NAME_LEN ;Store 12 bytes of filename. JMP SHORT NEXT_STORE2 EXTENSION: ADD DI,CX MOV CX,3 SUB DI,CX NEXT_STORE2: LODSB ;Get a byte. OR AL,AL ;End of filename? JZ END_STORE ;If yes, finish with blanks. CMP AL,"." ;Is it the period? JZ EXTENSION STOSB ;Store byte. LOOP NEXT_STORE2 ;Get next byte. END_STORE: ADD DI,CX STORE_SIZE: PUSH DI ;Save pointer. ADD DI,8 ;Move to end of bytes field. MOV DX,SIZE_LOW ;Retrieve high and low words MOV AX,SIZE_HIGH ; of size in bytes. MOV BX,10 STD ;Reverse direction. NEXT_SIZE: MOV CX,DX ;Low word in CX. XOR DX,DX ;Zero in high half. DIV BX ;Convert to decimal. XCHG AX,CX ;Retrieve low word. DIV BX XCHG AX,DX ;Retrieve remainder. ADD AL,"0" ;Convert to ASCII. STOSB ;Store it. MOV AX,CX ;Are we done? OR CX,DX JNZ NEXT_SIZE ;If no, divide again. CLD ;Back to forward direction. POP DI ;Retrieve pointer. ADD DI,11 ;Move to date field. STORE_DATE: MOV DX,DATE_STAMP ;Retrieve date. MOV AX,DX MOV CL,5 ;Shift to lowest bits. SHR AX,CL AND AX,1111B ;Mask off all but month. MOV CL,0FFH ;Flag as no leading zeros. MOV CH,"-" ;Delimiting character. CALL STORE_WORD ;Store it. MOV AX,DX ;Retrieve date. AND AX,11111B ;Mask off all but day. XOR CL,CL ;Flag include leading zeros. CALL STORE_WORD ;Store it. MOV AX,DX ;Retrieve date for last time. MOV CL,9 SHR AX,CL ;Mask off all but year. ADD AX,80 ;Adjust to ASCII. CMP AX,100 ;Past year 2000? JB DISPLAY_DATE ;If no, display. Else, adjust for SUB AX,100 ; next century. (Planning ahead!) DISPLAY_DATE: XOR CL,CL ;Display leading zeros. MOV CH,SPACE CALL STORE_WORD ;Store it. TIME: INC DI ;Move to time field. MOV DX,TIME_STAMP ;Retrieve time. MOV AX,DX MOV CL,11 ;Shift to hours bits. SHR AX,CL PUSH AX CMP AX,12 ;Past noon? JBE MERIDIAN SUB AX,12 ;If yes, adjust. MERIDIAN: CMP AX,0 ;Midnight? JNZ NOT_MIDNIGHT MOV AX,12 ;If yes, adjust. NOT_MIDNIGHT: MOV CL,0FFH ;Suppress leading zeros. MOV CH,":" CALL STORE_WORD ;Store it. MOV AX,DX ;Retrieve time. MOV CL,5 ;Shift to minutes bits. SHR AX,CL AND AX,111111B ;Mask off all but minutes. XOR CL,CL POP DX ;Retrieve hours. MOV CH,"p" ;Assume PM. CMP DX,12 ;Is it PM? JAE PM MOV CH,"a" ;If no, AM. PM: CALL STORE_WORD ;Store it. MOV DX,OFFSET VIEW_NAME MOV AH,9H INT 21H RET ;-----------------------------------------------------------------------; ; Converts a two byte hex number to decimal followed by delimiter. ; ; INPUT: AX = hex number; BL = 10; CH = delimiter character to store. ; ; CL = 0 if zeros are to be stored; CL = -1 if leading zeros ignored. ; ; ES:DI points to storage. ; ;-----------------------------------------------------------------------; STORE_WORD: DIV BL ;Divide by ten. ADD AX,"00" ;Convert to ASCII. CMP CL,0 ;Are we to display leading zero? JZ STORE_IT ;If yes, store as is. CMP AL,"0" ;Is it a leading zero? JNZ STORE_IT ;If no, store it. MOV AL,SPACE ;Else, store a space. STORE_IT: STOSW MOV AL,CH ;Store delimiter character also. STOSB RET ;----------------------------------------------; ;OUTPUT: AX=COMPRESS_SIZE[0]; BX=COMPRESS_SIZE[2]; CX=FILENAME_LEN; ; CF=1 if failed. COMPRESS_FLAG DB ? TIME_STAMP DW ? DATE_STAMP DW ? FILE_CRC DW ?,? SIZE_HIGH DW ? SIZE_LOW DW ? REDUCE_L DW ? REDUCE_F DW ? REDUCE_D1 DB ? REDUCE_D2 DW ? PROCESS_HEADER:PUSH DS MOV DS,READ_SEG MOV AX,DS:BIT_FLAG MOV CS:COMPRESS_FLAG,AL TEST AX,1 MOV DX,OFFSET ENCRYPTED_MSG JNZ PROCESS_FAIL CALL PROCESS_TYPE MOV DX,OFFSET UNKNOWN_MSG JC PROCESS_FAIL XOR DL,DL MOV AH,36H INT 21H CMP AX,0FFFFH MOV DX,OFFSET INVALID_MSG JZ PROCESS_FAIL MUL BX MUL CX SUB AX,DS:UNCOMPRESS_SIZE[0] SBB DX,DS:UNCOMPRESS_SIZE[2] MOV DX,OFFSET DISK_MSG JC PROCESS_FAIL MOV AX,DS:UNCOMPRESS_SIZE[0] MOV CS:SIZE_LOW,AX MOV AX,DS:UNCOMPRESS_SIZE[2] MOV CS:SIZE_HIGH,AX MOV CX,DS:FILENAME_LEN MOV DX,DS:EXTRA_FIELD_LEN ADD DX,CX MOV AX,DS:COMPRESS_SIZE[0] MOV BX,DS:COMPRESS_SIZE[2] MOV SI,DS:FILE_TIME MOV DI,DS:FILE_DATE MOV BP,DS:CRC_32[0] MOV CS:FILE_CRC[0],BP MOV BP,DS:CRC_32[2] CLC JMP SHORT PROCESS_END PROCESS_FAIL: STC PROCESS_END: POP DS MOV FILE_CRC[2],BP MOV BYTES_TO_READ[0],DX MOV TIME_STAMP,SI MOV DATE_STAMP,DI RET ;----------------------------------------------; ; OUTPUT: CF=1 if failed. PROCESS_TYPE: MOV BX,DS:ZIP_TYPE MOV AX,OFFSET UNSTORE OR BX,BX JZ STORE_EXTRACT MOV AX,OFFSET UNSHRINK DEC BX JZ STORE_EXTRACT MOV AX,OFFSET EXPAND MOV DX,7FH MOV CX,701H DEC BX JZ STORE_EXPAND MOV DX,3FH MOV CX,603H DEC BX JZ STORE_EXPAND MOV DX,1FH MOV CX,507H DEC BX JZ STORE_EXPAND MOV DX,0FH MOV CX,40FH DEC BX JNZ CK_EXPLODE STORE_EXPAND: MOV CS:REDUCE_L,DX MOV CS:REDUCE_F,DX MOV CS:REDUCE_D1,CH XOR CH,CH MOV CS:REDUCE_D2,CX JMP SHORT STORE_EXTRACT CK_EXPLODE: MOV AX,OFFSET EXPLODE DEC BX JZ STORE_EXTRACT STC JMP SHORT TYPE_END STORE_EXTRACT: MOV CS:EXTRACTOR,AX CLC TYPE_END: RET ;----------------------------------------------; ; OUTPUT: CF=1 if failed. CK_CRC: MOV AX,RUNNING_CRC_32[0] MOV DX,RUNNING_CRC_32[2] XOR AX,0FFFFH XOR DX,0FFFFH CMP AX,FILE_CRC[0] STC JNZ CRC_END CMP DX,FILE_CRC[2] STC JNZ CRC_END CLC CRC_END: RET ;**********************************************; ;----------------------------------------------; ; OUTPUT: CF=1 if failed. ;**********************************************; EXTRACT_MSG DB "Extracting $" UNSTORE: MOV DX,OFFSET EXTRACT_MSG CALL PRINT_STRING CALL WRITE_FILENAME UNSTORE_SPIN: CALL SPINNER NEXT_UNSTORE: INC SPIN_CNT JZ UNSTORE_SPIN MOV ES,READ_SEG MOV SI,READ_PTR CMP SI,BYTES_READ JZ GET_BYTES2 MOV AL,ES:[SI] INC READ_PTR CALL STORE_CHAR JNC NEXT_UNSTORE CLC JMP SHORT UNSTORE_END GET_BYTES2: CALL READ_ZIP JNC NEXT_UNSTORE CLC UNSTORE_END: RET ;----------------------------------------------; ; OUTPUT: CF=1 if failed. EXPAND_MSG DB "Expanding $" STATE DW ? LAST_CHAR DB ? EXPAND: MOV DX,OFFSET EXPLODE_MSG CALL PRINT_STRING CALL WRITE_FILENAME MOV WRITE_FLAG,0 MOV LAST_CHAR,0 MOV STATE,OFFSET STATE_ZERO CALL LOAD_FOLLOWERS JC EXPAND_END EXPAND_SPIN: CALL SPINNER NEXT_EXPAND: INC SPIN_CNT JZ EXPAND_SPIN MOV AX,SIZE FOLLOWER MUL LAST_CHAR MOV BP,AX CMP BYTE PTR FOLLOWERS[BP],0 JNZ GET_BIT MOV BL,8 CALL GET_CODE JNC DO_EXPAND JMP SHORT EXPAND_END GET_BIT: MOV BL,1 CALL GET_CODE JC EXPAND_END OR AL,AL JZ GET_FOLLOW MOV BL,8 CALL GET_CODE JNC DO_EXPAND JMP SHORT EXPAND_END GET_FOLLOW: MOV BH,FOLLOWERS[BP] SUB BH,1 JC EXPAND_ERR MOV BL,8 JMP SHORT NEXT_BIT2 NEXT_BIT: DEC BL NEXT_BIT2: SHL BH,1 JNC NEXT_BIT CALL GET_CODE JC EXPAND_END MOV SI,AX INC SI MOV AL,FOLLOWERS[BP+SI] XOR AH,AH DO_EXPAND: MOV LAST_CHAR,AL CALL [STATE] JNC NEXT_EXPAND EXPAND_ERR: STC JMP SHORT EXPAND_END2 EXPAND_END: CLC EXPAND_END2: RET ;----------------------------------------------; ; OUTPUT: CF=1 if failed. LOAD_FOLLOWERS:MOV BP,255 * SIZE FOLLOWER NEXT_FOLLOW: MOV BL,6 CALL GET_CODE JC FOLLOWERS_END MOV FOLLOWERS[BP],AL OR AL,AL JZ LOOP_FOLLOW XOR DI,DI NEXT_FOLLOW2: MOV BL,8 CALL GET_CODE JC FOLLOWERS_END INC DI MOV FOLLOWERS[BP+DI],AL MOV AX,DI CMP AL,FOLLOWERS[BP] JB NEXT_FOLLOW2 LOOP_FOLLOW: SUB BP,SIZE FOLLOWER JNC NEXT_FOLLOW CLC FOLLOWERS_END: RET ;----------------------------------------------; ; INPUT: AL=Char; OUTPUT: CF=1 if failed. DLE = 144 STATE_ZERO: CMP AL,DLE JZ CHANGE_STATE CALL STORE_CHAR RET CHANGE_STATE: MOV STATE,OFFSET STATE_ONE CLC ZERO_END: RET ;----------------------------------------------; ; INPUT: AL=Char; OUTPUT: CF=1 if failed. SAVE_REDUCE DW ? EXPAND_LEN DW ? STATE_ONE: OR AL,AL JZ WRITE_DLE MOV SAVE_REDUCE,AX AND AX,REDUCE_L MOV EXPAND_LEN,AX MOV BX,OFFSET STATE_THREE CMP AX,REDUCE_F JNZ SAVE_STATE MOV BX,OFFSET STATE_TWO SAVE_STATE: MOV STATE,BX CLC RET WRITE_DLE: MOV AL,DLE CALL STORE_CHAR MOV STATE,OFFSET STATE_ZERO RET ;----------------------------------------------; ; INPUT: AL=Char; OUTPUT: CF=1 if failed. STATE_TWO: ADD EXPAND_LEN,AX MOV STATE,OFFSET STATE_THREE CLC RET ;----------------------------------------------; ; INPUT: AL=Char; OUTPUT: CF=1 if failed. STATE_THREE: MOV BX,SAVE_REDUCE MOV CL,REDUCE_D1 SHR BX,CL AND BX,REDUCE_D2 MOV CL,8 SHL BX,CL ADD BX,AX INC BX MOV CX,EXPAND_LEN INC CX INC CX INC CX CALL BACKWARDS MOV STATE,OFFSET STATE_ZERO RET ;**********************************************; ;----------------------------------------------; ; OUTPUT: CF=1 if failed. EXPLODE_MSG DB "Exploding $" DISTANCE DW ? DICT_BITS DB ? MIN_MATCH_LEN DW ? WRITE_FLAG DB ? EXPLODE: MOV DX,OFFSET EXPLODE_MSG CALL PRINT_STRING CALL WRITE_FILENAME MOV WRITE_FLAG,0 CALL LOAD_TREES JC LILLY_EXIT4 EXPLODE_SPIN: CALL SPINNER NEXT_EXPLODE: INC SPIN_CNT JZ EXPLODE_SPIN MOV BL,1 CALL GET_CODE JC LILLY_EXIT3 OR AX,AX JZ SLIDING_DICT TEST COMPRESS_FLAG,100B JZ GET_A_CODE MOV BP,OFFSET LIT_TREE CALL READ_TREE JC LILLY_EXIT3 JMP SHORT STORE_BYTE GET_A_CODE: MOV BL,8 CALL GET_CODE JC LILLY_EXIT3 STORE_BYTE: CALL STORE_CHAR JNC NEXT_EXPLODE JMP EXPLODE_END2 LILLY_EXIT3: CLC LILLY_EXIT4: JMP EXPLODE_END2 SLIDING_DICT: MOV BL,DICT_BITS CALL GET_CODE JC EXPLODE_END2 MOV DISTANCE,AX MOV BP,OFFSET DISTANCE_TREE CALL READ_TREE JC EXPLODE_END2 MOV CL,DICT_BITS SHL AX,CL OR DISTANCE,AX MOV BP,OFFSET LENGTH_TREE CALL READ_TREE JC EXPLODE_END2 MOV DI,AX ADD AX,MIN_MATCH_LEN CMP DI,63 JNZ DO_BACKWARDS MOV DI,AX MOV BL,8 CALL GET_CODE JC EXPLODE_END ADD AX,DI DO_BACKWARDS: MOV CX,AX ;Length MOV BX,DISTANCE INC BX CALL BACKWARDS JNC NEXT_EXPLODE JMP SHORT EXPLODE_END2 EXPLODE_END: CLC EXPLODE_END2: RET ;----------------------------------------------; ; OUTPUT: CF=1 if failed. LOAD_TREES: MOV AL,COMPRESS_FLAG MOV AH,7 TEST AL,10B JNZ STORE_DICT DEC AH STORE_DICT: MOV DICT_BITS,AH MOV MIN_MATCH_LEN,2 TEST AL,100B JZ OTHER_TREES MOV MIN_MATCH_LEN,3 MOV BP,OFFSET LIT_TREE MOV WORD PTR TREE_ENTRIES[BP],256 CALL LOAD_TREE JC LOAD_TR_END OTHER_TREES: MOV BP,OFFSET LENGTH_TREE MOV WORD PTR TREE_ENTRIES[BP],64 CALL LOAD_TREE JC LOAD_TR_END MOV BP,OFFSET DISTANCE_TREE MOV WORD PTR TREE_ENTRIES[BP],64 CALL LOAD_TREE LOAD_TR_END: RET ;----------------------------------------------; ; INPUT: BP=Tree index. OUTPUT: CF=1 if failed. LOAD_TREE: CALL READ_LEN JC LOAD_TREE_END CALL SORT_LEN CALL MAKE_TREE CALL REVERSE_BITS CLC LOAD_TREE_END: RET ;----------------------------------------------; ; INPUT: BP=Tree index. OUTPUT: CF=1 if failed. TREE_BYTES DB ? READ_LEN: MOV BL,8 CALL GET_CODE JC READ_LEN_END INC AX MOV TREE_BYTES,AL XOR DI,DI NEXT_LEN: MOV BL,8 CALL GET_CODE JC READ_LEN_END MOV AH,AL MOV CL,4 SHR AH,CL AND AL,0FH INC AH INC AL NEXT_LEN2: MOV CX,DI MOV SI,DI SHL SI,1 SHL SI,1 MOV BIT_LENGTH[BP+SI],AL MOV VALUE[BP+SI],CL INC DI DEC AH JNZ NEXT_LEN2 DEC TREE_BYTES JNZ NEXT_LEN CLC READ_LEN_END: RET ;----------------------------------------------; ; INPUT: BP=Tree index. SORT_LEN: MOV AX,CS MOV ES,AX MOV AX,SIZE SF_TREE MUL WORD PTR TREE_ENTRIES[BP] ADD AX,BP MOV CX,BP NEXT_SORT: MOV BX,CX MOV DX,CX ADD DX,SIZE SF_TREE CMP DX,AX JAE SORT_END NEXT_SORT2: MOV SI,BX MOV DI,DX CMPSB JB LOOP_SORT JA SORT_IT CMPSB JBE LOOP_SORT DEC SI DEC DI SORT_IT: DEC SI DEC DI PUSH [DI] MOVSW POP [BX] LOOP_SORT: ADD DX,SIZE SF_TREE CMP DX,AX JB NEXT_SORT2 ADD CX,SIZE SF_TREE JMP NEXT_SORT SORT_END: RET ;----------------------------------------------; ; INPUT: BP=Tree index. MAKE_TREE: MOV AX,SIZE SF_TREE MUL WORD PTR TREE_ENTRIES[BP] ADD AX,BP MOV SI,AX XOR AX,AX ;Code XOR BL,BL ;Last bit length XOR DI,DI ;Code increment NEXT_MAKE: SUB SI,SIZE SF_TREE CMP SI,BP JB MAKE_END ADD AX,DI MOV TREE_CODE[SI],AX MOV BH,BIT_LENGTH[SI] CMP BH,BL JZ NEXT_MAKE MOV BL,BH MOV CL,16 SUB CL,BL MOV DI,1 SHL DI,CL JMP NEXT_MAKE MAKE_END: RET ;----------------------------------------------; ; INPUT: BP=Tree index. REVERSE_BITS: MOV DX,TREE_ENTRIES[BP] MOV SI,BP NEXT_REV: INC SI INC SI ;Code LODSW XOR BX,BX MOV CX,16 NEXT_REV2: SHR AX,1 RCL BX,1 LOOP NEXT_REV2 MOV [SI-2],BX DEC DX JNZ NEXT_REV RET ;----------------------------------------------; ; INPUT: BP=Tree index. OUTPUT: AX=code; CF=1 if failed. INDEX DW ? BITS DB ? READ_TREE: XOR DI,DI ;Code XOR DX,DX ;Bit length XOR CL,CL ;Bits NEXT_READ_T: MOV BITS,CL MOV BL,1 CALL GET_CODE JC READ_T_END2 MOV CL,BITS SHL AX,CL OR DI,AX INC CL MOV SI,DX NEXT_READ_T2: SHL SI,1 SHL SI,1 CMP BIT_LENGTH[BP+SI],CL JA NEXT_READ_T JZ NEXT_READ_T3 INC DX MOV SI,DX CMP SI,TREE_ENTRIES[BP] JB NEXT_READ_T2 JMP TREE_ERROR NEXT_READ_T3: CMP TREE_CODE[BP+SI],DI JNZ LOOP_TREE MOV AL,VALUE[BP+SI] XOR AH,AH JMP SHORT READ_T_END LOOP_TREE: INC DX MOV SI,DX CMP SI,TREE_ENTRIES[BP] JAE TREE_ERROR SHL SI,1 SHL SI,1 CMP BIT_LENGTH[BP+SI],CL JZ NEXT_READ_T3 JMP NEXT_READ_T TREE_ERROR: STC JMP SHORT READ_T_END2 READ_T_END: CLC READ_T_END2: RET ;----------------------------------------------; ; INPUT: CX=Length; BX=Distance; OUTPUT: CF=1 if failed. BACKWARDS: MOV ES,WRITE_SEG MOV SI,WRITE_PTR SUB SI,BX JNC NEXT_BACK CMP WRITE_FLAG,1 JZ END_BUFF NEXT_NULL: OR SI,SI JZ NEXT_BACK XOR AL,AL CALL STORE_CHAR JC BACKWARDS_END INC SI LOOP NEXT_NULL JMP BACKWARDS_END END_BUFF: ADD SI,WRITE_SIZE NEXT_BACK: MOV AL,ES:[SI] CALL STORE_CHAR JC BACKWARDS_END INC SI CMP SI,WRITE_SIZE JNZ LOOP_BACK XOR SI,SI LOOP_BACK: LOOP NEXT_BACK CLC BACKWARDS_END: RET ;**********************************************; ;----------------------------------------------; ; OUTPUT: CF=1 if failed. BASE_CHAR DB ? PREV_CODE DW ? SAVE_CODE DW ? UNSHRINK_MSG DB "Unshrinking $" UNSHRINK: MOV DX,OFFSET UNSHRINK_MSG CALL PRINT_STRING CALL WRITE_FILENAME CALL INIT_UNSHRINK MOV BL,CODE_BITS CALL GET_CODE JC LILLY_EXIT MOV PREV_CODE,AX MOV BASE_CHAR,AL CALL STORE_CHAR JC LILLY_EXIT2 UNSHRINK_SPIN: CALL SPINNER NEXT_UNSHRINK: INC SPIN_CNT JZ UNSHRINK_SPIN MOV BL,CODE_BITS CALL GET_CODE JC LILLY_EXIT MOV SAVE_CODE,AX XOR CX,CX ;String counter. CMP AX,SPECIAL_CODE JB STORE_UNSHRUNK JA CK_ERROR MOV BL,CODE_BITS CALL GET_CODE JC LILLY_EXIT DEC AX JNZ CK_CLEAR INC CODE_BITS JMP NEXT_UNSHRINK CK_CLEAR: DEC AX STC JNZ LILLY_EXIT2 CALL CLEAR JMP NEXT_UNSHRINK LILLY_EXIT: CLC LILLY_EXIT2: JMP UNSHRINK_END CK_ERROR: CMP AX,TRIE_SIZE JA ERROR MOV BX,AX SHL BX,1 CMP WORD PTR PREFIX[BX],FREE JNZ FIND_STRING2 PUSH WORD PTR BASE_CHAR INC CX MOV BX,PREV_CODE CMP BX,FIRST_FREE JB GOT_UNSHRUNK FIND_STRING: SHL BX,1 FIND_STRING2: PUSH SUFFIX[BX] INC CX MOV BX,PREFIX[BX] CMP BX,FIRST_FREE JAE FIND_STRING GOT_UNSHRUNK: MOV AL,BL STORE_UNSHRUNK:MOV BASE_CHAR,AL CALL STORE_CHAR JC UNSHRINK_END JCXZ ADD_CODE NEXT_STORE: POP AX CALL STORE_CHAR JC UNSHRINK_END LOOP NEXT_STORE ADD_CODE: MOV DI,FREE_NODE MOV AL,BASE_CHAR MOV SUFFIX[DI],AL MOV AX,PREV_CODE MOV PREFIX[DI],AX NEXT_FREE: INC DI INC DI CMP DI,TRIE_SIZE * 2 JA ERROR CMP WORD PTR PREFIX[DI],FREE JNZ NEXT_FREE MOV FREE_NODE,DI MOV AX,SAVE_CODE MOV PREV_CODE,AX JMP NEXT_UNSHRINK ERROR: STC UNSHRINK_END: RET ;----------------------------------------------; INIT_UNSHRINK: PUSH CS POP ES MOV DI,OFFSET PREFIX MOV AX,FREE MOV CX,TRIE_SIZE REP STOSW MOV FREE_NODE,FIRST_FREE * 2 MOV CODE_BITS,MIN_CODE_SIZE RET ;----------------------------------------------; ; INPUT: BITS_LEFT; BL=CODE_BITS; OUTPUT: AX=code; CF=1 if EOF or failed. GET_CODE: MOV CL,BL XOR AX,AX MOV BH,BITS_LEFT OR BH,BH JZ GET_BITS MOV CH,SAVE_BYTE NEXT_SHIFT2: SHR CH,1 RCR AX,1 DEC BL JZ GOT_CODE DEC BH JNZ NEXT_SHIFT2 GET_BITS: MOV SI,READ_PTR CMP SI,BYTES_READ JZ GET_BYTE MOV ES,READ_SEG MOV CH,ES:[SI] INC READ_PTR MOV BH,8 JMP NEXT_SHIFT2 GET_BYTE: CALL READ_ZIP JNC GET_BITS JMP SHORT GET_CODE_END GOT_CODE: DEC BH MOV SAVE_BYTE,CH MOV BITS_LEFT,BH NEG CL ADD CL,16 SHR AX,CL CLC GET_CODE_END: RET ;----------------------------------------------; CLEAR: ;Mark all nodes as potentially unused. MOV DX,FREE_NODE MOV AX,8000H MOV CX,FIRST_FREE * 2 MOV SI,CX NEXT_MARK: CMP SI,DX JZ CK_REF OR PREFIX[SI],AX INC SI INC SI JMP NEXT_MARK ;Unmark those that are used by other nodes CK_REF: MOV SI,CX NEXT_REF: CMP SI,DX JZ DO_CLEAR MOV AX,PREFIX[SI] INC SI INC SI AND AX,7FFFH CMP AX,FIRST_FREE JB NEXT_REF MOV DI,AX SHL DI,1 AND PREFIX[DI],7FFFH JMP NEXT_REF ;Clear the ones that are still marked DO_CLEAR: MOV SI,CX MOV AX,FREE JMP SHORT NEXT_CLEAR2 NEXT_CLEAR: INC SI INC SI NEXT_CLEAR2: CMP SI,DX JZ FIND_FREE MOV DI,PREFIX[SI] AND DI,8000H JZ NEXT_CLEAR MOV PREFIX[SI],AX JMP NEXT_CLEAR ;Find first free node FIND_FREE: MOV SI,FIRST_FREE * 2 JMP SHORT NEXT_FREE3 NEXT_FREE2: INC SI INC SI NEXT_FREE3: CMP PREFIX[SI],AX JNZ NEXT_FREE2 MOV FREE_NODE,SI RET ;----------------------------------------------; ; OUTPUT: CF=1 if failed or EOF. BYTES_TO_READ DW ?,? READ_PTR DW ? BYTES_READ DW ? READ_HANDLE DW ? READ_ZIP: PUSH AX PUSH BX PUSH CX PUSH DX MOV READ_PTR,0 MOV CX,READ_SIZE CMP BYTES_TO_READ[2],0 JNZ READ_IT MOV AX,BYTES_TO_READ[0] OR AX,AX STC JZ READ_ZIP_END CMP CX,AX JBE READ_IT MOV CX,AX READ_IT: PUSH DS MOV BX,READ_HANDLE XOR DX,DX MOV DS,READ_SEG MOV AH,3FH INT 21H POP DS JC READ_ZIP_END CMP AX,CX STC JNZ READ_ZIP_END MOV BYTES_READ,AX SUB BYTES_TO_READ[0],AX SBB BYTES_TO_READ[2],0 CLC READ_ZIP_END: POP DX POP CX POP BX POP AX RET ;----------------------------------------------; ; INPUT: AL=Char; OUTPUT: CF=1 if failed. WRITE_PTR DW ? STORE_CHAR: MOV ES,WRITE_SEG MOV DI,WRITE_PTR STOSB INC WRITE_PTR MOV BX,RUNNING_CRC_32[0] MOV DX,RUNNING_CRC_32[2] XOR AL,BL XOR AH,AH MOV BP,AX SHL BP,1 SHL BP,1 MOV AL,8 NEXT_SHIFT: SAR DX,1 ;DX:BX RCR BX,1 DEC AL JNZ NEXT_SHIFT AND DX,00FFH XOR BX,WORD PTR CRC_32_TABLE[BP] XOR DX,WORD PTR CRC_32_TABLE[BP+2] MOV RUNNING_CRC_32[0],BX MOV RUNNING_CRC_32[2],DX CMP DI,WRITE_SIZE CLC JNZ STORE_END CALL WRITE STORE_END: RET ;----------------------------------------------; ; OUTPUT: CF=1 if failed. WRITE_HANDLE DW ? WRITE: PUSH CX MOV CX,WRITE_PTR OR CX,CX JZ WRITE_END MOV BX,WRITE_HANDLE XOR DX,DX PUSH DS MOV DS,WRITE_SEG MOV AH,40H INT 21H POP DS MOV WRITE_PTR,0 MOV WRITE_FLAG,1 WRITE_END: POP CX RET ;----------------------------------------------; WRITE_FILENAME:MOV DX,OFFSET DIR_NAME MOV SI,END_FILENAME PUSH [SI] MOV BYTE PTR [SI],"$" CALL PRINT_STRING POP [SI] MOV DL,SPACE MOV AH,2 INT 21H RET ;----------------------------------------------; WRITE_CRLF: MOV DX,OFFSET CR_LF JMP SHORT NEW_LINE WRITE_CRLFLF: MOV DX,OFFSET CR_LF_LF NEW_LINE: CALL PRINT_STRING RET ;----------------------------------------------; PRINT_STRING: MOV AH,9 ;Print string via DOS. INT 21H RET ;----------------------------------------------; SPINNER: MOV SI,SPIN_INDEX SUB SI,1 JNC STORE_SPIN MOV SI,2 STORE_SPIN: MOV SPIN_INDEX,SI MOV AL,SPINNERS[SI] SPIN_IT: XOR BH,BH MOV CX,1 MOV BL,ATTRIBUTE MOV AH,9 INT 10H RET ;----------------------------------------------; CRC_32_TABLE LABEL DWORD DD 000000000h, 077073096h, 0EE0E612Ch, 0990951BAh, 0076DC419h, 0706AF48Fh, 0E963A535h, 09E6495A3h DD 00EDB8832h, 079DCB8A4h, 0E0D5E91Eh, 097D2D988h, 009B64C2Bh, 07EB17CBDh, 0E7B82D07h, 090BF1D91h DD 01DB71064h, 06AB020F2h, 0F3B97148h, 084BE41DEh, 01ADAD47Dh, 06DDDE4EBh, 0F4D4B551h, 083D385C7h DD 0136C9856h, 0646BA8C0h, 0FD62F97Ah, 08A65C9ECh, 014015C4Fh, 063066CD9h, 0FA0F3D63h, 08D080DF5h DD 03B6E20C8h, 04C69105Eh, 0D56041E4h, 0A2677172h, 03C03E4D1h, 04B04D447h, 0D20D85FDh, 0A50AB56Bh DD 035B5A8FAh, 042B2986Ch, 0DBBBC9D6h, 0ACBCF940h, 032D86CE3h, 045DF5C75h, 0DCD60DCFh, 0ABD13D59h DD 026D930ACh, 051DE003Ah, 0C8D75180h, 0BFD06116h, 021B4F4B5h, 056B3C423h, 0CFBA9599h, 0B8BDA50Fh DD 02802B89Eh, 05F058808h, 0C60CD9B2h, 0B10BE924h, 02F6F7C87h, 058684C11h, 0C1611DABh, 0B6662D3Dh DD 076DC4190h, 001DB7106h, 098D220BCh, 0EFD5102Ah, 071B18589h, 006B6B51Fh, 09FBFE4A5h, 0E8B8D433h DD 07807C9A2h, 00F00F934h, 09609A88Eh, 0E10E9818h, 07F6A0DBBh, 0086D3D2Dh, 091646C97h, 0E6635C01h DD 06B6B51F4h, 01C6C6162h, 0856530D8h, 0F262004Eh, 06C0695EDh, 01B01A57Bh, 08208F4C1h, 0F50FC457h DD 065B0D9C6h, 012B7E950h, 08BBEB8EAh, 0FCB9887Ch, 062DD1DDFh, 015DA2D49h, 08CD37CF3h, 0FBD44C65h DD 04DB26158h, 03AB551CEh, 0A3BC0074h, 0D4BB30E2h, 04ADFA541h, 03DD895D7h, 0A4D1C46Dh, 0D3D6F4FBh DD 04369E96Ah, 0346ED9FCh, 0AD678846h, 0DA60B8D0h, 044042D73h, 033031DE5h, 0AA0A4C5Fh, 0DD0D7CC9h DD 05005713Ch, 0270241AAh, 0BE0B1010h, 0C90C2086h, 05768B525h, 0206F85B3h, 0B966D409h, 0CE61E49Fh DD 05EDEF90Eh, 029D9C998h, 0B0D09822h, 0C7D7A8B4h, 059B33D17h, 02EB40D81h, 0B7BD5C3Bh, 0C0BA6CADh DD 0EDB88320h, 09ABFB3B6h, 003B6E20Ch, 074B1D29Ah, 0EAD54739h, 09DD277AFh, 004DB2615h, 073DC1683h DD 0E3630B12h, 094643B84h, 00D6D6A3Eh, 07A6A5AA8h, 0E40ECF0Bh, 09309FF9Dh, 00A00AE27h, 07D079EB1h DD 0F00F9344h, 08708A3D2h, 01E01F268h, 06906C2FEh, 0F762575Dh, 0806567CBh, 0196C3671h, 06E6B06E7h DD 0FED41B76h, 089D32BE0h, 010DA7A5Ah, 067DD4ACCh, 0F9B9DF6Fh, 08EBEEFF9h, 017B7BE43h, 060B08ED5h DD 0D6D6A3E8h, 0A1D1937Eh, 038D8C2C4h, 04FDFF252h, 0D1BB67F1h, 0A6BC5767h, 03FB506DDh, 048B2364Bh DD 0D80D2BDAh, 0AF0A1B4Ch, 036034AF6h, 041047A60h, 0DF60EFC3h, 0A867DF55h, 0316E8EEFh, 04669BE79h DD 0CB61B38Ch, 0BC66831Ah, 0256FD2A0h, 05268E236h, 0CC0C7795h, 0BB0B4703h, 0220216B9h, 05505262Fh DD 0C5BA3BBEh, 0B2BD0B28h, 02BB45A92h, 05CB36A04h, 0C2D7FFA7h, 0B5D0CF31h, 02CD99E8Bh, 05BDEAE1Dh DD 09B64C2B0h, 0EC63F226h, 0756AA39Ch, 0026D930Ah, 09C0906A9h, 0EB0E363Fh, 072076785h, 005005713h DD 095BF4A82h, 0E2B87A14h, 07BB12BAEh, 00CB61B38h, 092D28E9Bh, 0E5D5BE0Dh, 07CDCEFB7h, 00BDBDF21h DD 086D3D2D4h, 0F1D4E242h, 068DDB3F8h, 01FDA836Eh, 081BE16CDh, 0F6B9265Bh, 06FB077E1h, 018B74777h DD 088085AE6h, 0FF0F6A70h, 066063BCAh, 011010B5Ch, 08F659EFFh, 0F862AE69h, 0616BFFD3h, 0166CCF45h DD 0A00AE278h, 0D70DD2EEh, 04E048354h, 03903B3C2h, 0A7672661h, 0D06016F7h, 04969474Dh, 03E6E77DBh DD 0AED16A4Ah, 0D9D65ADCh, 040DF0B66h, 037D83BF0h, 0A9BCAE53h, 0DEBB9EC5h, 047B2CF7Fh, 030B5FFE9h DD 0BDBDF21Ch, 0CABAC28Ah, 053B39330h, 024B4A3A6h, 0BAD03605h, 0CDD70693h, 054DE5729h, 023D967BFh DD 0B3667A2Eh, 0C4614AB8h, 05D681B02h, 02A6F2B94h, 0B40BBE37h, 0C30C8EA1h, 05A05DF1Bh, 02D02EF8Dh EVEN STACK_POINTER = $ + LOCAL_STACK + (TRIE_SIZE * 2) PREFIX = OFFSET STACK_POINTER SUFFIX = OFFSET PREFIX + PREFIX_SIZE LENGTH_TREE = OFFSET STACK_POINTER + 2 DISTANCE_TREE = OFFSET LENGTH_TREE + LEN_TREE_SIZE + 2 LIT_TREE = OFFSET DISTANCE_TREE + DIST_TREE_SIZE + 2 FOLLOWERS = OFFSET STACK_POINTER _TEXT ENDS END START