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