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sys7.1-doc-wip/Interfaces/AIncludes/FSPrivate.a

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happy commit
2020-03-22 08:44:21 +00:00
;
; Hacks to match MacOS (most recent first):
;
; <Sys7.1> 8/3/92 Reverted <SM2>
; 9/2/94 SuperMario ROM source dump (header preserved below)
;
SuperMarioProj.1994-02-09
2019-07-27 14:37:48 +00:00
; Version: 2.96
; Created: Friday, October 20, 1989 at 9:18:00 PM
;
; File: FSPrivate.a
;
; Assembler Interface to the Macintosh Libraries
; Copyright Apple Computer, Inc. 1984-1990
; All Rights Reserved
;
;
; Change History (most recent first):
;
; <SM2> 4/14/92 kc Change LenBTCB from 54 to 74. Change hfsStkLen from 1280 to
; 1792.
; <13> 1/30/91 gbm sab, #38: Change the ‘already including this file’ variable to
; all uppercase (for security reasons)
; <12> 8/28/90 KST Make FCFree work as FCtrash on 6.0 RamCache
; <11> 8/27/90 KST Adding new FlushCache and RelBlock option flags for the new
; DiskCache interface.
; <10> 7/18/90 KST Adding a bit EQU for RamCache.
; <7> 4/11/90 KST Revoke change in (6), btMaxDepth is reset to 8 so that we will
; not screw up ROM in patches to the ROM. RAM B*tree Manager will
; use its own set of EQUs in BtreePrivate.a.
; <6> 4/4/90 KST btMaxDepth has been changed from 8 to 16.
; <4> 2/4/90 DNF Move new private information into FileMgrPrivate.a
; <1.2> 11/15/89 EKN Minor twiddles to fidSwapVars offsets.
; <1.1> 9/29/89 EKN Added File threads and errors for it
; <1.0> 11/9/88 CCH Adding to EASE.
; <•1.1> 9/14/88 CCH Updated EASE with the current rev of this file.
;
;--------------------------------------------------------------------
;
; The following information was formerly in "private" files that were
; not released to the general developer community.
;
; The information in this file is not needed for normal application
; development. These equates and macros were necessary for development
; of the Macintosh ToolBox and Operating System, and are likely to be
; dependent on their current implementation. Use of any information
; in this file is likely to cause your software to fail on future
; versions of Macintosh system software or hardware.
;
; Apple Developer Support will not support any use of the following
; information.
;
; In order to prevent any "accidental" use of this information, it has
; been disabled using the conditional-assembly variable defined below.
; If you change this to a non-zero value, you're on your own.
;--------------------------------------------------------------------
IF &TYPE('__INCLUDINGFSPRIVATE__') = 'UNDEFINED' THEN
__INCLUDINGFSPRIVATE__ SET 1
IF (&TYPE('FSPNonPortable') = 'UNDEFINED') THEN
FSPNonPortable EQU 0
ENDIF
HFSDebug EQU 0 ; include HFS debug traps if 1
IF FSPNonPortable THEN ;begin exclusion of private information
; Function: This file contains the complete File System equates for MFS and HFS. It is
; an extension of the equates defined by old FSEQU.a
;
; Constant definitions
;
btsPrBlk EQU 12 ; bits per block in volume map (FS volume)
; ExtendFile option flags
EFContig EQU 1 ; force contiguous allocation
EFAll EQU 0 ; allocate all requested bytes or none
kEFContig EQU 2 ; corresponding constants for MOVEQ
kEFAll EQU 1
; TruncateFile option flags
TFTrunExt EQU 0 ; truncate to the extent containing new PEOF
kTFTrunExt EQU 1 ; corresponding constants for MOVEQ
MACRO ; HFS debugging halt trap
_HFSDebug
IF HFSDebug THEN ; only included when actually debugging
IF &Syslst[1]<>'' THEN
DC.W ($F000+&Syslst[1]) ; in case a trap sub-code is specified
ELSE
DC.W ($A9FF) ; User break
ENDIF
ENDIF
ENDM
MACRO ; HFS error halt trap
_HFSDSErr
_HFSDebug &Syslst[1] ; Pause first if debugging
MOVEQ #DSFSErr,D0 ; Error code = 27, Fatal File System Error
_SysError ; Stop the engines
ENDM
ENDIF ;end exclusion of private information
strtDir EQU 2 ; directory master block location (block #)
bufSiz EQU 512 ; standard file system buffer size in bytes
hdrSiz EQU 10 ; size of header prefixed to buffer
bufModBit EQU 7 ; dirty bit in high byte of buf tag word
bufFNum EQU -10 ; offset from buf start to file number longword
bufFlags EQU -6 ; offset from buf start to file flags word
bufFBlk EQU -4 ; offset from buf start to file block word
bufTag EQU -2 ; offset from buf start to tag word
nxFreeFN EQU 16 ; next free file number
nxFreeDID EQU 3 ; next free directory id
alBlkSize EQU 512 ; default allocation block size (1 sector, in bytes)
clpSize EQU 4*512 ; default allocation clump size (in bytes)
maxHFSTrap EQU 17 ; Highest TFS trap dispatch index
;_______________________________________________________________________
; fixed location labels: (equivalent of zero page)
hfsVars EQU $36A ; Start of TFS variables in RAM version
; (previously RgSvArea)
hfsTmpSize EQU 16 ; Additional temporary space for TFS
happy commit
2020-03-22 08:44:21 +00:00
hfsStkLen EQU 1280 ; Allocate a decent-sized chunk of memory <SM2> <Sys7.1>
SuperMarioProj.1994-02-09
2019-07-27 14:37:48 +00:00
HFSStkTop EQU $36A ; Temporary location of pointer to top of Stack
HFSStkPtr EQU $36E ; Temporary location of TFS Stack pointer
WDCBsPtr EQU $372 ; Working Directory queue header
HFSFlags EQU $376 ; Internal TFS flags
DefVRefNum EQU $384 ; Default volume's VRefNum (COULD BE WDRefNum!)
;
; Flag bits in HFSFlags byte:
;
hfsReq EQU 0 ; Set if request is specific to TFS
dirCN EQU 1 ; Set if a CNode is a directory
hfsContd EQU 7 ; Set if Async trap is continued
noPMSP EQU 6 ; Set to disable PMSP completely (status flag)
skipPMSP EQU 5 ; Set to skip PMSP setup (one-shot)
SysCRefCnt EQU $377 ; Usage count byte for system caches (number of vols)
CacheFlag EQU $377 ; cache usage count now used as cache flag
CacheVars EQU $394
cacheCom EQU $39C
noRWIPBit EQU 7
diskRdBit EQU 6
dontInstRC EQU 5 ; set if don't load ramcache in the boot process. <22May90>
; so the RamCache INIT supercedes System's. <22May90>
SysBMCPtr EQU $378 ; System-wide bitmap cache pointer
SysVolCPtr EQU $37C ; System-wide volume cache pointer
SysCtlCPtr EQU $380 ; System-wide control cache pointer
PMSPPtr EQU $386 ; Pointer to list of directories on PMSP
HFSDSErr EQU $392 ; Final gasp - error that caused IOErr.
HFSVarEnd EQU $394 ; End of hfs variable area
hfsStkOvf EQU 99 ; Deep trouble alert - HFS stack overflowed.
CurDB EQU $340 ; current directory block
FSCallAsync EQU $342 ; ONE BYTE FREE
NewMount EQU $34A ; (1) used by MountVol to flag new mounts
NoEject EQU $34B ; used by Eject and Offline
DrMstrBlk EQU $34C ; master directory block in a volume
ErCode EQU $3A2 ; use this loc to report errors during async
; routines
FSIOErr EQU $3DE ; last I/O error (NEXT WORD FREE)
FSQueueHook EQU $3E2 ; hook to capture all FS calls
ExtFSHook EQU $3E6 ; command done hook
DskSwtchHook EQU $3EA ; hook for disk-switch dialog
ReqstVol EQU $3EE ; ptr to VCB of off-line or ext fs volume
FSVarEnd EQU $3F6 ; end of file system variables
fsVarLth EQU $B6
fsClrWDLen EQU $A2 ;length to clear in boot blocks
; Internal File System Error codes
;
; Cache errors
chNoBuf EQU 1 ; no free cache buffers (all in use)
chInUse EQU 2 ; requested block in use
chnotfound EQU 3 ; requested block not found
chNotInUse EQU 4 ; block being released was not in use
; FXM Internal error codes:
fxRangeErr EQU 16 ; file position beyond mapped range
fxOvFlErr EQU 17 ; extents file overflow
; TFS internal errors
fsDSIntErr EQU -127 ; Internal file system error
; BTree error codes
btnotfound EQU 32 ; record not found
btexists EQU 33 ; record already exists
btnospace EQU 34 ; no available space
btnoFit EQU 35 ; record doesn't fit in node
btbadNode EQU 36 ; bad node detected
btbadHdr EQU 37 ; bad BTree header record detected
dsBadRotate EQU 64 ; bad BTree rotate
; CM result codes
cmnotfound EQU 48 ; CNode not found
cmexists EQU 49 ; CNode already exists
cmnotempty EQU 50 ; directory CNode not empty (valence = 0)
cmRootCN EQU 51 ; invalid reference to root CNode
cmbadnews EQU 52 ; detected bad catalog structure
; File IDs result codes
cmFThdDirErr EQU 53 ; thread belongs to a directory not a file
cmFThdGone EQU 54 ; file thread doesn't exist
;
; extent key record (prefix xkr)
;
dataFk EQU $00 ; data fork type
rsrcFk EQU $FF ; resource fork type
xkrKeyLen EQU 0 ; key length (byte)
xkrFkType EQU 1 ; fork type (byte)
xkrFNum EQU 2 ; file number (long)
xkrFABN EQU 6 ; starting file allocation block number (word)
lenxkr EQU 8 ; length of a xkr
;
; extent data record (prefix xdr)
;
numExts EQU 3 ; number of extents per record
lenExt EQU 4 ; length of an extent entry
maxExtOff EQU lenExt*numExts-lenExt ; max extent entry offset
xdrStABN EQU 0 ; starting physical allocation block number (word)
xdrNumABlks EQU 2 ; number of allocation blocks (word)
lenxdr EQU 12 ; length of a xdr (3 extent entries)
;
; FXM variables (FXVars) storage layout
;
fxvFlags EQU 0 ; FXM Flags (byte)
fxvTContig EQU 6 ; ...try contiguous allocation first
fxvFContig EQU 7 ; ...force contiguous allocation
fxvResrv EQU 1 ; reserved (byte)
fxvxkrOff EQU 2 ; offset to extent key record
fxvxdrOff EQU fxvxkrOff+lenxkr ; offset to extent data record
lenFXVars EQU fxvxdrOff+lenxdr ; length of FXM vars
;
; Cache Queue header (prefix cqh)
;
cqhFlink EQU 0 ; (long) forward link pointer
cqhBlink EQU 4 ; (long) backward link pointer
cqhNumBuf EQU 8 ; (word) number of buffers
cqhBufSize EQU 10 ; (word) buffer size
LenCQH EQU 12 ; length of CQH
;
; Cache Buffer Header definition (prefix cbh)
;
cbhFlink EQU 0 ; (long) forward link
cbhBlink EQU 4 ; (long) backward link
cbhVCBPtr EQU 8 ; (long) VCB pointer
cbhFlNum EQU 12 ; (long) file number
cbhFRefNum EQU 16 ; (word) file refnum
cbhDBlk EQU 18 ; (long) disk block number (-1 = empty)
cbhFlBlk EQU 22 ; (long) file block number
cbhFlags EQU 26 ; (byte) flags
cbhdirty EQU 7 ; ...buffer dirty flag
cbhinuse EQU 6 ; ...buffer in use flag
cbhempty EQU 5 ; ...buffer is empty
cbhFkType EQU 27 ; (byte) fork type
; ...$00 = data fork
; ...$FF = resource fork
cbhData EQU 28 ; start of buffer data area
lenCBH EQU 28 ; length of cbh
; Local buffer equates
cobDBlk EQU cbhDBlk ; (long) disk block
cobFlBlk EQU cbhFlBlk ; (long) file block
cobFlags EQU cbhFlags ; (byte) flags (only dirty bit is used)
; FlushCache option flags
fCfreeBit EQU 1 ; free buffers after flush (save in the hash) <27Aug90>
fCtrash EQU 0 ; trash buffer contents after flush
;; kFCfree works as kFCtrash on pre-7.0 RamCache ; on 7.0, kFCfree overrides kFCtrash <28Aug90>
kFCfree EQU 3 ; corresponding constant for MOVEQ load <27Aug90>
kFCtrash EQU 1 ;
; GetBlock option flags
gbrelease EQU 3 ; release block immediately after get
gbnoRead EQU 2 ; don't read block from disk
gbexist EQU 1 ; get existing cache block
gbRead EQU 0 ; read block from disk (forced read)
kGBrelease EQU 8 ; corresponding constants for MOVEQ load
kGBnoRead EQU 4 ;
kGBexist EQU 2 ;
kGBRead EQU 1 ;
; RelBlock option flags
rbfreeBit EQU 3 ; free the buffer (save in the hash) <27Aug90>
rbdirty EQU 2 ; mark buffer dirty
rbtrash EQU 1 ; trash buffer contents after release
rbwrite EQU 0 ; force write buffer to disk
;; kRBfree works as kRBtrash on pre-7.0 RamCache ; on 7.0, kRBfree overrides kRBtrash <28Aug90>
kRBfree EQU 10 ; corresponding constants for MOVEQ load <27Aug90>
kRBdirty EQU 4 ; corresponding constants for MOVEQ load
kRBtrash EQU 2 ;
kRBwrite EQU 1 ;
;
; BTree constants
;
btNodeSize EQU 512 ; default node size
btMaxDepth EQU 8 ; max tree depth (don't change this)
;
; Tree Path Record (TPR)
;
tprNodeN EQU 0 ; node number (long)
tprRIndx EQU 4 ; record index (word)
lenTPR EQU 6 ; length of TPR
lenTPT EQU lenTPR*btMaxDepth ; length of Tree Path Table
;
; Node Descriptor (prefix nd)
;
ndFlink EQU 0 ; forward link (long)
ndBlink EQU 4 ; backward link (long)
ndType EQU 8 ; node type (byte)
ndHdrNode EQU 1 ; ...header node
ndMapNode EQU 2 ; ...map node
ndIndxNode EQU 0 ; ...index node
ndLeafNode EQU $FF ; ...leaf node
ndNHeight EQU 9 ; node height
ndNRecs EQU 10 ; number of records (word)
ndResv2 EQU 12 ; reserved (word)
lenND EQU 14 ; length of node descriptor
;
; BTree Header (bth) on disk
;
bthDepth EQU 0 ; current depth of tree (word)
bthRoot EQU 2 ; root node number (long)
bthNRecs EQU 6 ; number of leaf records in BTree (long)
bthFNode EQU 10 ; node number of 1st leaf node (long)
bthLNode EQU 14 ; node number of last leaf node (long)
bthNodeSize EQU 18 ; BTree node size in bytes (word)
bthKeyLen EQU 20 ; Max. key length (word)
bthNNodes EQU 22 ; total number of nodes (long)
bthFree EQU 26 ; number of free nodes (long)
lenMemBTH EQU 30 ; length of memory resident portion of BTH
;
bthResv EQU 30 ; reserved (76 bytes)
LenBTH EQU 106 ; length of a BTH
;
; BTree Control Block (btcB) in memory
;
btcFlags EQU 0 ; flags (byte)
btcDirty EQU 7 ; ...dirty flag
btcKeyUpd EQU 6 ; ...index key update required
btcNewIRec EQU 5 ; ...new index record required
btcDelIRec EQU 4 ; ...index record delete required
btcResv EQU 1 ; reserved (byte)
btcRefNum EQU 2 ; file refnum (word)
btcKeyCR EQU 4 ; pointer to ext key compare routine (long)
btcCQPtr EQU 8 ; pointer to cache queue (long)
btcVarPtr EQU 12 ; pointer to BTree variables (long)
btcLevel EQU 16 ; current level (word)
btcNodeM EQU 18 ; current node mark (long)
btcIndexM EQU 22 ; current index mark (word)
;
; this part of a btcB is the memory resident portion of the BTH
;
btcDepth EQU 24 ; current depth of tree (word)
btcRoot EQU 26 ; root node number (long)
btcNRecs EQU 30 ; number of leaf records in BTree (long)
btcFNode EQU 34 ; node number of 1st leaf node (long)
btcLNode EQU 38 ; node number of last leaf node (long)
btcNodeSize EQU 42 ; BTree node size in bytes (word)
btcKeyLen EQU 44 ; max key length (word)
btcNNodes EQU 46 ; total number of nodes (long)
btcFree EQU 50 ; number of free nodes (long)
happy commit
2020-03-22 08:44:21 +00:00
LenBTCB EQU 54 ; length of a BTCB <SM2> <Sys7.1>
SuperMarioProj.1994-02-09
2019-07-27 14:37:48 +00:00
;
; BTree Variables (btVars) layout
;
btVTPTable EQU 0 ; Tree Path Table
btVRecord EQU btVTPTable+lenTPT ; record buffer
;
; constants
;
cmMaxKey EQU 37 ; max catalog key length
cmMaxCName EQU 31 ; max CName length
cmClpSize EQU 20 ; catalog clump size
;
; CNode types
;
cmDirCN EQU 1 ; directory CNode
cmFilCN EQU 2 ; file CNode
;
; catalog key record (prefix ckr)
;
ckrKeyLen EQU 0 ; key length (byte)
ckrResrv1 EQU 1 ; reserved (byte)
ckrParID EQU 2 ; parent directory ID (long)
ckrCName EQU 6 ; CNode name (str31)
lenckr EQU 38 ; length of a ckr
;
; catalog data record (prefix cdr)
;
cdrType EQU 0 ; record type (byte)
cdrResrv2 EQU 1 ; reserved (byte)
cdrData EQU 2 ; start of catalog record data
;
; catalog data record types (variants)
;
cdrDirRec EQU cmDirCN ; directory record (directory CNode type)
cdrFilRec EQU cmFilCN ; file record (file CNode type)
cdrThdRec EQU 3 ; thread record
cdrFThdRec EQU 4 ; file thread record
;
; catalog directory record (prefix dir)
;
dirFlags EQU 2 ; flags(word)
dirVal EQU 4 ; valence (word)
dirDirID EQU 6 ; DirID for this directory (long)
dirCrDat EQU 10 ; date/time created (long)
dirMdDat EQU 14 ; date/time last modified (long)
dirBkDat EQU 18 ; date/time last backed up (long)
dirUsrInfo EQU 22 ; User info bytes (16 bytes)
dirFndrInfo EQU 38 ; Finder Info bytes (16 bytes)
dirResrv EQU 54 ; reserved (16 bytes)
lendir EQU 70 ; length of a directory record
;
; catalog thread record (prefix thd)
;
thdResrv EQU 2 ; reserved (8 bytes)
thdParID EQU 10 ; Parent ID for this directory (long)
thdCName EQU 14 ; CName for this directory (str31)
lenthd EQU 46 ; length of a thread record
;
; catalog file record (prefix fil)
;
fThreadFlag EQU 1 ; bit offset into filFlags (set if thd exists)
filWrtFlag EQU 0 ; write-allowed bit in flags byte (0 if allowed)
filTypMask EQU $FE ; (user file-type in bits 1-7)
filFlags EQU 2 ; bit 7=1 (used), bit 0=file lock flag, bit 1=fthread
filTyp EQU 3 ; file type (used as a name extension)
filUsrWds EQU 4 ; user words for file. (16 bytes)
filFlNum EQU 20 ; file number
filStBlk EQU 24 ; Start file block (alloc blk size)(0000 if none)
filLgLen EQU 26 ; File logical length in bytes (EOF)
filPyLen EQU 30 ; File physical length in bytes
filRStBlk EQU 34 ; Start file block, resource fork (0000 if none)
filRLgLen EQU 36 ; File logical length (EOF), resource fork
filRPyLen EQU 40 ; File physical length, resource fork
filCrDat EQU 44 ; date/time created (long)
filMdDat EQU 48 ; date/time last modified (long)
filBkDat EQU 52 ; date/time last backed up (long)
filFndrInfo EQU 56 ; Additional finder info for file (16 bytes)
filClpSize EQU 72 ; file clump size (word)
filExtRec EQU 74 ; First 3 data fork extents (12 bytes)
filRExtRec EQU 86 ; First 3 resource fork extents (12 bytes)
filResrv EQU 98 ; reserved (4 bytes)
lenfil EQU 102 ; length of a file record
lencdr EQU lenfil ; max length of a catalog data record
;
; CM variables (CM vars) storage layout
;
ckrOff EQU 0 ; offset to catalog key record buffer
cdrOff EQU ckrOff+lenckr ; offset to catalog data record buffer
lenCMVars EQU lencdr+lenckr ; length of CM vars
;
; FileIDs variables
;
fidBogusExtID EQU 15 ; use this for exchanging extents in extents file
lenCID EQU 4 ; length of a cnode id
numExtToCache EQU 4 ; just guessing for ExchangeFiles
destExt EQU 0 ; offset into extFlgsOff if destination has extents
srcExt EQU 1 ; offset into extFlgsOff if source has extents
; fid vars storage layout
tempKeyOff EQU 0 ; BEST BE FIRST, SO LOCCREC CAN BE CALLED ALSO!
extOff EQU lenCMVars ; set up 4 extents
srcDIDOff EQU extOff+(numExtToCache*lenxdr)+(numExtToCache*lenxkr);
destDIDOff EQU srcDIDOff+lenCID
extFlgsOff EQU destDIDOff+lenCID ; flags for existance of extents in extents file
srcCNode EQU extFlgsOff+2 ; cnode of source
destCNode EQU srcCNode+lencdr ; dest cnode
lenFIDSwapVars EQU lenCMVars+(numExtToCache*lenxdr)+(numExtToCache*lenxkr)+(2*lenCID)+2+(2*lencdr)
; some catalog variables + the extents +
; the directory ids of source and dest +
; a word for flagging extents in extent file +
; the cnode records of source and dest
; further file system equates
CkdDB EQU $340 ; (2) used when searching the directory
NxtDB EQU $342
MaxDB EQU $344
FlushOnly EQU $346 ; (1) flag used by UnMountVol,FlushVol,
RegRsrc EQU $347 ; (1) flag used by OpenRF, FileOpen
FLckUnlck EQU $348 ; (1) flag used by SetFilLock,RstFilLock
FrcSync EQU $349 ; (1) when set, all fs calls are sync'ed
RgSvArea EQU $36A ; reg save during async calls.
Params EQU $3A4 ; 50 bytes long. For I/O parameter blocks.
FSTemp8 EQU $3D6 ; used by rename
FSTemp4 EQU $3DE ; used by rename, ckfilmod
fsVrsn EQU '1.2A' ; Current file system version
ENDIF ; ...already included
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