; SCCSID = @(#)msdata.asm 1.8 85/09/12 ; ;---------------------------------------------------------------------------- ; ; M008 : Renamed callback_ss & callback_sp to AbsRdWr_SS & AbsRdWr_SP ; To be used in Absolute Read/Write DISK routines ; M019 DB 10/26/90 - Disk write optimization: removed HIGH_SECTOR_TEMP. ; ;---------------------------------------------------------------------------- ; AsmVars ; ;smr;--- These extrns should be in DOSCODE segment ; DOSCODE SEGMENT BYTE PUBLIC 'CODE' ;hkn; extrn ucase_tab:byte ;hkn; extrn file_ucase_tab:byte ;hkn; extrn file_char_tab:byte ;hkn; extrn collate_tab:byte ;hkn; extrn dbcs_tab:byte ;hkn; extrn map_case:byte extrn DIVOV:near extrn QUIT:near extrn COMMAND:near extrn ABSDRD:near extrn ABSDWRT:near extrn Stay_resident:near extrn INT2F:near extrn CALL_ENTRY:near extrn IRETT:near DOSCODE ENDS ; Break DOSDATA SEGMENT WORD PUBLIC 'DATA' ; Init code overlaps with data area below ; ORG 0 PUBLIC MSDAT001S,MSDAT001E MSDAT001S label byte I_am TIMEBUF,6 ; Time read from clock device I_am DEVIOBUF,2 ; Buffer for I/O under file assignment ; ; The following areas are used as temp buffer in EXEC system call ; I_am OPENBUF,128 ; buffer for name operations I_am RenBuf,128 ; buffer for rename destination ; Buffer for search calls I_am SEARCHBUF,53 ; internal search buffer I_am DummyCDS,curdirLen ; ; End of contiguous buffer ; ; Temporary directory entry for use by many routines. Device directory ; entries (bogus) are built here. ; PUBLIC DevFCB DEVFCB LABEL BYTE ; Uses NAME1, NAME2, combined ; WARNING.. do not alter position of NAME1 relative to DEVFCB ; without first examining BUILD_DEVICE_ENT. Look carefully at DOS_RENAME ; as well as it is the only guy who uses NAME2 and DESTSTART. I_am NAME1,12 ; File name buffer I_am NAME2,13 ; I_am DESTSTART,WORD ; DB ((SIZE DIR_ENTRY) - ($ - DEVFCB)) DUP (?) ; ; End Temporary directory entry. ; I_am ATTRIB,BYTE ; storage for file attributes I_am EXTFCB,BYTE ; TRUE => extended FCB in use I_am SATTRIB,BYTE ; Storage for search attributes I_AM open_access,BYTE ; access of open system call I_am FoundDel,BYTE ; true => file was deleted I_am Found_dev,BYTE ; true => search found a device I_am fSplice,BYTE ; true => do a splice in transpath I_am fSharing,BYTE ; TRUE => no redirection I_am SECCLUSPOS,BYTE ; Position of first sector within cluster I_am TRANS,BYTE ; I_am READOP,BYTE ; I_am THISDRV,BYTE ; I_am CLUSFAC,BYTE ; I_am CLUSSPLIT,BYTE ; I_am INSMODE,BYTE ; true => insert mode in buffered read I_am cMeta,BYTE ; count of meta'ed components found I_am VOLID,BYTE ; I_am exit_type,BYTE ; type of exit... EVEN ; WARNING - the following two items are accessed as a word I_am CREATING,BYTE ; true => creating a file I_am DELALL,BYTE ; = 0 iff BUGBUG ; = DIRFREE iff BUGBUG I_am EXITHOLD,DWORD ; Temp location for proc terminate I_am user_SP,WORD ; User SP for system call I_am user_SS,WORD ; User SS for system call I_am CONTSTK,WORD ; I_am THISDPB,DWORD ; I_am CLUSSAVE,WORD ; I_am CLUSSEC,DWORD ;>32mb AC0000 I_am PREREAD,WORD ; 0 means preread; 1 means optional I_am FATBYT,WORD ; Used by ALLOCATE I_am FATBYTE,WORD ; Used by $SLEAZEFUNC I_am DEVPT,DWORD ; I_am THISSFT,DWORD ; Address of user SFT I_am THISCDS,DWORD ; Address of current CDS I_am THISFCB,DWORD ; Address of user FCB I_am SFN,WORD,<-1> ; SystemFileNumber found for accessfile I_am JFN,WORD ; JobFileNumber found for accessfile I_am PJFN,DWORD ; PointerJobFileNumber found for accessfile I_am WFP_START,WORD ; I_am REN_WFP,WORD ; I_am CURR_DIR_END,WORD ; I_am NEXTADD,WORD ; I_am LASTPOS,WORD ; I_am CLUSNUM,WORD ; I_am DIRSEC,DWORD ;>32mb AC0000 I_am DIRSTART,WORD ; I_am SECPOS,DWORD ;>32mb Position of first sector accessed I_am VALSEC,DWORD ;>32mb Number of valid (previously written) ; sectors I_am BYTSECPOS,WORD ; Position of first byte within sector I_am BYTPOS,4 ; Byte position in file of access I_am BYTCNT1,WORD ; No. of bytes in first sector I_am BYTCNT2,WORD ; No. of bytes in last sector I_am SECCNT,WORD ; No. of whole sectors I_am ENTFREE,WORD ; I_am ENTLAST,WORD ; I_am NXTCLUSNUM,WORD ; I_am GROWCNT,DWORD ; I_am CURBUF,DWORD ; I_am CONSft,DWORD ; SFT of console swapped guy. I_am SaveBX,WORD ; I_am SaveDS,WORD ; I_am restore_tmp,WORD ; return address for restore world I_am NSS,WORD I_am NSP,WORD I_am EXTOPEN_FLAG,WORD,<0> ;FT. extended open input flag ;AN000; I_am EXTOPEN_ON,BYTE,<0> ;FT. extended open conditional flag ;AN000; I_am EXTOPEN_IO_MODE,WORD,<0>;FT. extende open io mode ;AN000; I_am SAVE_DI,WORD ;FT. extende open saved DI ;AN000; I_am SAVE_ES,WORD ;FT. extende open saved ES ;AN000; I_am SAVE_DX,WORD ;FT. extende open saved DX ;AN000; I_am SAVE_CX,WORD ;FT. extende open saved CX ;AN000; I_am SAVE_BX,WORD ;FT. extende open saved BX ;AN000; I_am SAVE_SI,WORD ;FT. extende open saved SI ;AN000; I_am SAVE_DS,WORD ;FT. extende open saved DS ;AN000; ; HIGH_SECTOR is a hack to allow passing 32-bit sector numbers where ; we used to just pass 16 bits in a register. Now High_SECTOR holds ; the high 16, the low 16 are still in the register. I_am HIGH_SECTOR,WORD,<0> ;>32mb higher sector # ;AN000; I_am UU_HIGH_SECTOR_TEMP,WORD,<0> ;M019: Unused I_am DISK_FULL,BYTE ;>32mb indicating disk full when 1 ;AN000; I_am TEMP_VAR,WORD ; temporary variable for everyone ;AN000; I_am TEMP_VAR2,WORD ; temporary variable 2 for everyone ;AN000; I_am DrvErr,BYTE ; used to save drive error ;AN000; I_am DOS34_FLAG,WORD,<0> ; common flag for DOS 3.4 ;AN000; I_am NO_FILTER_PATH,DWORD ; pointer to orignal path ;AN000; I_am NO_FILTER_DPATH,DWORD ; pointer to orignal path of destination;AN000; ; M008 I_am AbsRdWr_SS,WORD ; INT 25/26 user stack segment I_am AbsRdWr_SP,WORD ; INT 25/26 user stack offset I_am UU_Callback_flag,BYTE,<0> ; Unused ; M008 ; make those pushes fast!!! EVEN StackSize = 180h ; gross but effective ;;;StackSize = 300h ; This is a "trial" change IBM hasn't ;;; ; made up their minds about ; ; WARNING!!!! DskStack may grow into AUXSTACK due to interrupt service. ; This is NO problem as long as AUXSTACK comes immediately before DSKSTACK ; PUBLIC RENAMEDMA,AuxStack,DskStack,IOStack RENAMEDMA LABEL BYTE ; See DOS_RENAME DB StackSize DUP (?) ; AuxStack LABEL BYTE DB StackSize DUP (?) ; DskStack LABEL BYTE DB StackSize DUP (?) ; IOStack LABEL BYTE ; patch space for Boca folks. ; Say What????!!! This does NOT go into the swappable area! ; NOTE: We include the decl of ibmpatch in ms-dos even though it is not needed. ; This allows the REDIRector to work on either IBM or MS-DOS. PUBLIC IBMPATCH IBMPATCH label byte I_am PRINTER_FLAG,BYTE,<0> ; [SYSTEM] status of PRINT utility I_am VOLCHNG_FLAG,BYTE,<0> ; [SYSTEM] true if volume label created I_am VIRTUAL_OPEN,BYTE,<0> ; [SYSTEM] non-zero if we opened a virtual file ; Following 4 variables moved to MSDATA.asm from MSTABLE.asm (P4986) I_am FSeek_drive,BYTE ;AN000; fastseek drive # I_am FSeek_firclus,WORD ;AN000; fastseek first cluster # I_am FSeek_logclus,WORD ;AN000; fastseek logical cluster # I_am FSeek_logsave,WORD ;AN000; fastseek returned log clus # ; I_am UU_ACT_PAGE,WORD,<-1> ;;;;;;; ;BL ; active EMS page ;AN000; I_am TEMP_DOSLOC,WORD,<-1> ;stores the temporary location of dos ;at SYSINIT time. SWAP_END LABEL BYTE PUBLIC SWAP_END ; THE FOLLOWING BYTE MUST BE HERE, IMMEDIATELY FOLLOWING SWAP_END. IT CANNOT ; BE USED. If the size of the swap data area is ODD, it will be rounded up ; to include this byte. DB ? ;hkn; DB (512+80+32-(SWAP_END-ibmpatch)) DUP (?) DOSDATA ENDS DOSDATALAST SEGMENT MSDAT001e label byte DOSDATALAST ENDS