2020-10-14 10:19:24 +00:00
|
|
|
myUnitNum equ 52
|
|
|
|
|
myDRefNum equ ~myUnitNum
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Code
|
|
|
|
|
cmp.l #1,4(SP)
|
|
|
|
|
beq getBootBlocks
|
|
|
|
|
cmp.l #2,4(SP)
|
|
|
|
|
beq getSysVol
|
|
|
|
|
cmp.l #3,4(SP)
|
|
|
|
|
beq mountSysVol
|
|
|
|
|
|
|
|
|
|
move.l #-1,d0
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
getBootBlocks
|
|
|
|
|
lea DiskImage,A0
|
|
|
|
|
move.l 8(SP),A1 ; Inside the global struct...
|
|
|
|
|
add.l #$BA,A1 ; ...is an element for the structured part of the boot blocks
|
|
|
|
|
move.l #138,D0 ; ...of this length
|
|
|
|
|
|
|
|
|
|
dc.w $A22E ; _BlockMoveData
|
|
|
|
|
|
|
|
|
|
; If these boot blocks are executable (from offset 2), then the 138 bytes of
|
|
|
|
|
; declarative data copied by the netBOOT driver are not enough. We edit the boot
|
|
|
|
|
; blocks with a stub that copies the entire 1k into place. System 7 needs this.
|
|
|
|
|
|
|
|
|
|
move.b 6(A1),D0 ; BBVersion
|
|
|
|
|
cmp.b #$44,D0
|
|
|
|
|
beq.s executableBB
|
|
|
|
|
and.b #$C0,D0
|
|
|
|
|
cmp.b #$C0,D0
|
|
|
|
|
beq.s executableBB
|
|
|
|
|
|
|
|
|
|
bra return
|
|
|
|
|
|
|
|
|
|
executableBB ; Need to leave bytes 6,7 intact
|
|
|
|
|
move.l #$60000004,2(A1) ; BB+2: BRA.W BB+8
|
|
|
|
|
move.w #$4EB9,8(A1) ; BB+8: JSR fixBB
|
|
|
|
|
lea fixBB,A0
|
|
|
|
|
move.l A0,10(A1)
|
|
|
|
|
|
|
|
|
|
move.l A1,A0 ; Clear the icache with a BlockMove
|
|
|
|
|
move.l #138,D0
|
|
|
|
|
dc.w $A02E ; _BlockMove
|
|
|
|
|
|
|
|
|
|
bra return
|
|
|
|
|
|
|
|
|
|
fixBB ; The BB stub JSRs to here
|
|
|
|
|
move.l (SP)+,A1
|
|
|
|
|
sub.l #14,A1 ; "Rewind" to the start of the BB
|
|
|
|
|
|
|
|
|
|
lea DiskImage,A0 ; Replace stub BB with correct BB
|
|
|
|
|
move.l #$400,D0
|
|
|
|
|
dc.w $A02E ; _BlockMove
|
|
|
|
|
|
|
|
|
|
jmp 2(A1) ; Jump to the fixed-up BB
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
getSysVol
|
|
|
|
|
; Our register conventions:
|
|
|
|
|
; A2 = fake dqe; A3 = dce; A4 = copied driver
|
|
|
|
|
|
|
|
|
|
link A6,#-$32
|
|
|
|
|
movem.l A2-A4/D3,-(SP)
|
|
|
|
|
|
|
|
|
|
; Now I copy all this stuff under BufPtr (because this current location will disappear)
|
|
|
|
|
lea Code,A0
|
|
|
|
|
dc.w $A021 ; _GetPtrSize
|
|
|
|
|
|
|
|
|
|
; Save a copy of the image size for later
|
|
|
|
|
move.l D0,D1
|
|
|
|
|
sub.l #DiskImage-Code,D1
|
|
|
|
|
lea DiskImageSize,A1
|
|
|
|
|
move.l D1,(A1)
|
|
|
|
|
|
|
|
|
|
; Make space in "high memory" for the combined driver and disk image
|
|
|
|
|
sub.l #BufPtrCopy-Code,D0
|
|
|
|
|
sub.l D0,$10C ; BufPtr
|
|
|
|
|
move.l $10C,A4 ; ... into A4
|
|
|
|
|
|
|
|
|
|
; Copy the driver and image as one chunk
|
|
|
|
|
lea BufPtrCopy,A0
|
|
|
|
|
move.l A4,A1
|
|
|
|
|
dc.w $A22E ; _BlockMoveData
|
|
|
|
|
|
|
|
|
|
; Truncate this block to reduce heap fragmentation
|
|
|
|
|
lea Code,A0
|
|
|
|
|
move.l #BufPtrCopy-Code,D0
|
|
|
|
|
dc.w $A020 ; _SetPtrSize
|
|
|
|
|
|
|
|
|
|
; Install the driver in the unit table
|
|
|
|
|
move.l #myDRefNum,D0
|
|
|
|
|
dc.w $A43D ; _DrvrInstall ReserveMem
|
|
|
|
|
bne error
|
|
|
|
|
|
|
|
|
|
; Get DCE handle of installed driver
|
|
|
|
|
move.l $11C,A0 ; UTableBase
|
|
|
|
|
add.l #myUnitNum*4,A0
|
|
|
|
|
move.l (A0),A3
|
|
|
|
|
|
|
|
|
|
; Lock it down
|
|
|
|
|
move.l A3,A0
|
|
|
|
|
dc.w $A029 ; _HLock
|
|
|
|
|
|
|
|
|
|
; Populate the empty DCE that DrvrInstall left us
|
|
|
|
|
move.l (A3),A0 ; A0 = dce ptr
|
|
|
|
|
|
|
|
|
|
move.l A4,0(A0) ; dCtlDriver is pointer (not hdl)
|
|
|
|
|
|
|
|
|
|
move.w 0(A4),D0 ; drvrFlags
|
|
|
|
|
and.w #~$0040,D0 ; Clear dRAMBased bit (to treat dCtlDriver as a pointer)
|
|
|
|
|
move.w D0,4(A0) ; dCtlFlags
|
|
|
|
|
|
|
|
|
|
; Copy these other values that apparently the Device Mgr forgets
|
|
|
|
|
move.w 2(A4),$22(A0) ; drvrDelay to dCtlDelay
|
|
|
|
|
move.w 4(A4),$24(A0) ; drvrEMask to dCtlEMask
|
|
|
|
|
move.w 6(A4),$26(A0) ; drvrMenu to dCtlMenu
|
|
|
|
|
|
|
|
|
|
; Open the driver
|
|
|
|
|
lea -$32(A6),A0
|
|
|
|
|
bsr clearblock
|
|
|
|
|
lea DrvrNameString,A1
|
|
|
|
|
move.l A1,$12(A0) ; IOFileName
|
|
|
|
|
dc.w $A000 ; _Open
|
|
|
|
|
bne error
|
|
|
|
|
|
|
|
|
|
; Create a DQE
|
|
|
|
|
move.l #$16,D0
|
|
|
|
|
dc.w $A71E ; _NewPtr ,Sys,Clear
|
|
|
|
|
bne error
|
|
|
|
|
add.l #4,A0 ; has some cheeky flags at negative offset
|
|
|
|
|
move.l A0,A2
|
|
|
|
|
|
|
|
|
|
; Point our caller to the fake dqe
|
|
|
|
|
move.l 4+12(A6),A1
|
|
|
|
|
move.l A2,(A1)
|
|
|
|
|
|
|
|
|
|
; Find a free drive number (nicked this code from BootUtils.a:AddMyDrive)
|
|
|
|
|
LEA $308,A0 ; [DrvQHdr]
|
|
|
|
|
MOVEQ #4,D3 ; start with drive number 4
|
|
|
|
|
CheckDrvNum
|
|
|
|
|
MOVE.L 2(A0),A1 ; [qHead] start with first drive
|
|
|
|
|
CheckDrv
|
|
|
|
|
CMP.W 6(A1),D3 ; [dqDrive] does this drive already have our number?
|
|
|
|
|
BEQ.S NextDrvNum ; yep, bump the number and try again.
|
|
|
|
|
CMP.L 6(A0),A1 ; [qTail] no, are we at the end of the queue?
|
|
|
|
|
BEQ.S GotDrvNum ; if yes, our number's unique! Go use it.
|
|
|
|
|
MOVE.L 0(A1),A1 ; [qLink] point to next queue element
|
|
|
|
|
BRA.S CheckDrv ; go check it.
|
|
|
|
|
|
|
|
|
|
NextDrvNum
|
|
|
|
|
; this drive number is taken, pick another
|
|
|
|
|
|
|
|
|
|
ADDQ.W #1,D3 ; bump to next possible drive number
|
|
|
|
|
BRA.S CheckDrvNum ; try the new number
|
|
|
|
|
GotDrvNum
|
|
|
|
|
|
|
|
|
|
; Populate the DQE
|
|
|
|
|
move.l #$80080000,-4(A2) ; secret flags, see http://mirror.informatimago.com/next/developer.apple.com/documentation/mac/Files/Files-112.html
|
|
|
|
|
move.w #1,4(A2) ; qType
|
|
|
|
|
move.w #0,$A(A2) ; dQFSID should be for a native fs
|
|
|
|
|
move.l DiskImageSize,D0
|
|
|
|
|
swap D0
|
|
|
|
|
move.l D0,$C(A2) ; dQDrvSz/dQDrvSz2
|
|
|
|
|
|
|
|
|
|
lea gDQEAddr,A0
|
|
|
|
|
move.l A2,(A0)
|
|
|
|
|
|
|
|
|
|
; Into the drive queue (which will further populate the DQE)
|
|
|
|
|
move.l A2,A0 ; A0 = DQE ptr
|
|
|
|
|
move.w D3,D0
|
|
|
|
|
swap.w D0 ; D0.H = drive number
|
|
|
|
|
move.w #myDRefNum,D0 ; D0.L = driver refnum
|
|
|
|
|
dc.w $A04E ; _AddDrive
|
|
|
|
|
bne error
|
|
|
|
|
|
|
|
|
|
; Save this most precious knowledge for later
|
|
|
|
|
lea gDriveNum,A0
|
|
|
|
|
move.w D3,(A0)
|
|
|
|
|
|
|
|
|
|
; Work around a bug in the .netBOOT ToExtFS hook
|
|
|
|
|
bsr fixDriveNumBug
|
|
|
|
|
|
|
|
|
|
; Clean up our stack frame
|
|
|
|
|
movem.l (SP)+,A2-A4/D3
|
|
|
|
|
unlk A6
|
|
|
|
|
|
|
|
|
|
bra return
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
mountSysVol
|
|
|
|
|
link A6,#-$32
|
|
|
|
|
movem.l A2-A4/D3,-(SP)
|
|
|
|
|
|
|
|
|
|
lea gDriveNum,A0
|
|
|
|
|
move.w (A0),D3
|
|
|
|
|
|
|
|
|
|
; System 7 needs MountVol to return the right vRefNum
|
|
|
|
|
move.l $366,A0 ; Steal existing PB from FSQHead
|
|
|
|
|
|
|
|
|
|
; Set aside the FS queue to stop MountVol deadlocking
|
|
|
|
|
move.w $360,-(SP) ; FSBusy
|
|
|
|
|
move.l $362,-(SP) ; FSQHead
|
|
|
|
|
move.l $366,-(SP) ; FSQTail
|
|
|
|
|
clr.w $360
|
|
|
|
|
clr.l $362
|
|
|
|
|
clr.l $366
|
|
|
|
|
|
|
|
|
|
; MountVol
|
|
|
|
|
bsr clearblock
|
|
|
|
|
move.w D3,$16(A0) ; ioVRefNum = ioDrvNum = the drive number
|
|
|
|
|
dc.w $A00F ; _MountVol
|
|
|
|
|
bne error
|
|
|
|
|
|
|
|
|
|
; Restore the FS queue
|
|
|
|
|
move.l (SP)+,$366
|
|
|
|
|
move.l (SP)+,$362
|
|
|
|
|
move.w (SP)+,$360
|
|
|
|
|
|
|
|
|
|
; Tattle about the DQE and VCB
|
|
|
|
|
move.l 4+12(A6),A1
|
|
|
|
|
move.l $356+2,A0 ; VCBQHdr.QHead (maybe I should be clever-er)
|
|
|
|
|
move.l A0,(A1)
|
|
|
|
|
|
|
|
|
|
move.l 4+16(A6),A1
|
|
|
|
|
lea gDQEAddr,A0
|
|
|
|
|
move.l (A0),(A1)
|
|
|
|
|
|
|
|
|
|
movem.l (SP)+,A2-A4/D3
|
|
|
|
|
unlk A6
|
|
|
|
|
|
|
|
|
|
return
|
|
|
|
|
move.l #0,d0
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
error
|
|
|
|
|
dc.w $A9C9
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
; The .netBOOT driver installs a ToExtFS hook that triggers on _MountVol
|
|
|
|
|
; and calls our mountSysVol. The hook routine checks that the drive number
|
|
|
|
|
; is 4. On machines with >2 existing drives, this check fails, and we
|
|
|
|
|
; never get called (i.e. Mini vMac).
|
|
|
|
|
|
|
|
|
|
; The solution is to head patch the .netBOOT ToExtFS hook. We use a
|
|
|
|
|
; one-shot patch on _MountVol to gain control after the hook is installed
|
|
|
|
|
; but before it is called, and install our new hook.
|
|
|
|
|
|
|
|
|
|
bystanderTrap equ $A00F ; _MountVol
|
|
|
|
|
gTheirDriveNum dc.w 0
|
|
|
|
|
gOrigBystanderTrap dc.l 0
|
|
|
|
|
gOrigExtFS dc.l 0
|
|
|
|
|
NetBootName dc.b 8, ".netBOOT", 0
|
|
|
|
|
|
|
|
|
|
fixDriveNumBug
|
|
|
|
|
; Get the .netBOOT driver refnum (only to search for the right drive)
|
|
|
|
|
lea -$32(A6),A0 ; Use our caller's stack frame
|
|
|
|
|
bsr clearblock
|
|
|
|
|
lea NetBootName,A1
|
|
|
|
|
move.l A1,$12(A0) ; IOFileName
|
|
|
|
|
dc.w $A000 ; _Open
|
|
|
|
|
bne error
|
|
|
|
|
move.w $18(A0),D0 ; Result in IORefNum
|
|
|
|
|
|
|
|
|
|
; Search for the drive with that number in dQRefNum
|
|
|
|
|
lea $308,A1 ; DrvQHdr
|
|
|
|
|
lea 2(A1),A0 ; Treat qHead like qLink.
|
|
|
|
|
nbFindLoop move.l (A0),A0 ; follow qLink
|
|
|
|
|
cmp.w 8(A0),D0 ; is the dQRefNum the .netBOOT driver?
|
|
|
|
|
beq.s nbFound ; then we found the .netBOOT drive
|
|
|
|
|
cmp.l 6(A1),A0 ; have we reached qTail?
|
|
|
|
|
beq error ; then we didn't find the .netBOOT drive
|
|
|
|
|
bra.s nbFindLoop
|
|
|
|
|
nbFound move.w 6(A0),D0 ; Get dqDrive (drive number)
|
|
|
|
|
|
|
|
|
|
; Save drivenum in a global for our patch to use
|
|
|
|
|
lea gTheirDriveNum,A0
|
|
|
|
|
move.w D0,(A0)
|
|
|
|
|
|
|
|
|
|
; Only install the patch if we need to
|
|
|
|
|
cmp.w #4,D0 ; A drivenum of 4 will work anyway
|
|
|
|
|
bne installOneshotPatch
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Install a self-disabling patch on _MountVol
|
|
|
|
|
installOneshotPatch
|
|
|
|
|
move.w #bystanderTrap,D0 ; Save original in a global
|
|
|
|
|
dc.w $A346 ; _GetOSTrapAddress
|
|
|
|
|
lea gOrigBystanderTrap,A1
|
|
|
|
|
move.l A0,(A1)
|
|
|
|
|
|
|
|
|
|
move.w #bystanderTrap,D0 ; Install
|
|
|
|
|
lea oneshotPatch,A0
|
|
|
|
|
dc.w $A247 ; _SetOSTrapAddress
|
|
|
|
|
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Our _MountVol patch
|
|
|
|
|
oneshotPatch
|
|
|
|
|
clr.l -(SP)
|
|
|
|
|
movem.l D0/D1/A0/A1,-(SP) ; Save "OS trap" registers
|
|
|
|
|
|
|
|
|
|
move.l $3F2,A0 ; Save the ToExtFS hook in a global to call later
|
|
|
|
|
lea gOrigExtFS,A1
|
|
|
|
|
move.l A0,(A1)
|
|
|
|
|
lea toExtFSPatch,A0 ; Install the ToExtFS head patch
|
|
|
|
|
move.l A0,$3F2
|
|
|
|
|
|
|
|
|
|
lea gOrigBystanderTrap,A0 ; Remove this patch from _MountVol
|
|
|
|
|
move.l (A0),A0
|
|
|
|
|
move.l A0,16(SP)
|
|
|
|
|
move.w #bystanderTrap,D0
|
|
|
|
|
dc.w $A047 ; _SetTrapAddress
|
|
|
|
|
|
|
|
|
|
movem.l (SP)+,D0/D1/A0/A1
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Our head patch on the ToExtFS hook
|
|
|
|
|
toExtFSPatch
|
|
|
|
|
movem.l A0-A4/D1-D2,-(SP) ; Save the same registers at the real ToExtFS hook
|
|
|
|
|
|
|
|
|
|
cmp.b #$F,$6+1(A0) ; Check for a _MountVol call (IOTrap+1)
|
|
|
|
|
bne.s hookReturn
|
|
|
|
|
|
|
|
|
|
lea gTheirDriveNum,A1 ; Check for the CORRECT drive number,
|
|
|
|
|
move.w (A1),D0 ; instead of erroneously checking for 4.
|
|
|
|
|
cmp.w $16(A0),D0 ; IODrvNum
|
|
|
|
|
bne.s hookReturn
|
|
|
|
|
|
|
|
|
|
lea gOrigExtFS,A1 ; Rejoin the ToExtFS hook AFTER the buggy code
|
|
|
|
|
move.l (A1),A1
|
|
|
|
|
hookScan add.l #2,A1 ; Scan for "lea DrvQHdr,A2" (or similar)
|
|
|
|
|
cmp.w #$308,2(A1)
|
|
|
|
|
bne.s hookScan
|
|
|
|
|
jmp (A1) ; and enter at that point
|
|
|
|
|
|
|
|
|
|
hookReturn movem.l (SP)+,A0-A4/D1-D2
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
clearblock
|
2020-11-02 02:58:05 +00:00
|
|
|
move.w #$32/2-1,D0
|
|
|
|
|
.loop clr.w (A0)+
|
|
|
|
|
dbra D0,.loop
|
|
|
|
|
lea -$32(A0),A0
|
2020-10-14 10:19:24 +00:00
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DrvrNameString
|
|
|
|
|
dc.b 11, ".netRamDisk"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
gDriveNum dc.w 0
|
|
|
|
|
gDQEAddr dc.l 0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; code on this side is for start only, and stays in the netBOOT driver globals until released
|
|
|
|
|
|
|
|
|
|
BufPtrCopy
|
|
|
|
|
|
|
|
|
|
; code on this side gets copied beneath BufPtr (is that the best place??)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Shall we start with a driver?
|
|
|
|
|
DrvrBase
|
|
|
|
|
dc.w $4F00 ; dReadEnable dWritEnable dCtlEnable dStatEnable dNeedLock
|
|
|
|
|
dc.w 0 ; delay
|
|
|
|
|
dc.w 0 ; evt mask
|
|
|
|
|
dc.w 0 ; menu
|
|
|
|
|
|
|
|
|
|
dc.w DrvrOpen-DrvrBase
|
|
|
|
|
dc.w DrvrPrime-DrvrBase
|
|
|
|
|
dc.w DrvrControl-DrvrBase
|
|
|
|
|
dc.w DrvrStatus-DrvrBase
|
|
|
|
|
dc.w DrvrClose-DrvrBase
|
|
|
|
|
dc.b 11, ".netRamDisk"
|
|
|
|
|
|
|
|
|
|
; a0=iopb, a1=dce on entry to all of these...
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
DrvrOpen
|
|
|
|
|
move.w #0,$10(A0) ; ioResult
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
DrvrPrime
|
2020-11-02 02:58:05 +00:00
|
|
|
movem.l A0-A1/D0-D1,-(SP)
|
2020-10-14 10:19:24 +00:00
|
|
|
|
|
|
|
|
cmp.b #2,$7(A0) ; ioTrap == aRdCmd
|
|
|
|
|
bne.s notRead
|
|
|
|
|
|
|
|
|
|
; D1 = image offset
|
|
|
|
|
move.l $10(A1),D1 ; Device Mgr gives us dCtlPosition
|
|
|
|
|
|
|
|
|
|
; D0 = number of bytes
|
|
|
|
|
move.l $24(A0),D0 ; ioReqCount
|
|
|
|
|
move.l D0,$28(A0) ; -> ioActCount
|
|
|
|
|
|
|
|
|
|
; Do the dirty (we are just about to trash A0, so use it first)
|
|
|
|
|
move.w #0,$10(A0) ; ioResult
|
|
|
|
|
move.l $20(A0),A1 ; ioBuffer
|
|
|
|
|
lea DiskImage,A0
|
|
|
|
|
add.l D1,A0
|
|
|
|
|
dc.w $A22E ; _BlockMoveData
|
|
|
|
|
|
|
|
|
|
bra.s primeFinish
|
|
|
|
|
|
|
|
|
|
notRead
|
|
|
|
|
cmp.b #3,7(A0) ; ioTrap == aRdCmd
|
|
|
|
|
bne.s primeFinish
|
|
|
|
|
|
|
|
|
|
; D1 = image offset
|
|
|
|
|
move.l $10(A1),D1 ; Device Mgr gives us dCtlPosition
|
|
|
|
|
|
|
|
|
|
; D0 = number of bytes
|
|
|
|
|
move.l $24(A0),D0 ; ioReqCount
|
|
|
|
|
move.l D0,$28(A0) ; -> ioActCount
|
|
|
|
|
|
|
|
|
|
; Do the dirty (we are just about to trash A0, so use it first)
|
|
|
|
|
move.w #0,$10(A0) ; ioResult
|
|
|
|
|
move.l $20(A0),A0 ; ioBuffer
|
|
|
|
|
lea DiskImage,A1
|
|
|
|
|
add.l D1,A1
|
|
|
|
|
dc.w $A22E ; _BlockMoveData
|
|
|
|
|
|
|
|
|
|
primeFinish
|
2020-11-02 02:58:05 +00:00
|
|
|
movem.l (SP)+,A0-A1/D0-D1
|
2020-10-14 10:19:24 +00:00
|
|
|
bra DrvrFinish
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
DrvrControl
|
|
|
|
|
move.w #-18,$10(A0) ; ioResult
|
|
|
|
|
bra DrvrFinish
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
DrvrStatus
|
|
|
|
|
cmp.w #6,$1A(A0)
|
|
|
|
|
beq.s status_fmtLstCode
|
|
|
|
|
cmp.w #8,$1A(A0)
|
|
|
|
|
beq.s status_drvStsCode
|
|
|
|
|
bra.s status_unknown
|
|
|
|
|
|
|
|
|
|
status_fmtLstCode ; tell them about our size
|
|
|
|
|
move.l A2,-(SP)
|
|
|
|
|
|
|
|
|
|
move.w #1,$1C(A0)
|
|
|
|
|
move.l $1C+2(A0),A2
|
|
|
|
|
move.l DiskImageSize,0(A2)
|
|
|
|
|
move.l #$40000000,4(A2)
|
|
|
|
|
|
|
|
|
|
move.l (SP)+,A2
|
|
|
|
|
|
2020-12-01 02:39:24 +00:00
|
|
|
move.w #0,$10(A0) ; ioResult = noErr
|
2020-10-14 10:19:24 +00:00
|
|
|
bra DrvrFinish
|
|
|
|
|
|
|
|
|
|
status_drvStsCode ; tell them about some of our flags
|
|
|
|
|
move.w #0,$1C(A0) ; csParam[0..1] = track no (0)
|
|
|
|
|
move.l #80080000,$1C+2(A0) ; csParam[2..5] = same flags as dqe
|
|
|
|
|
|
|
|
|
|
move.w #0,$10(A0) ; ioResult = noErr
|
|
|
|
|
bra DrvrFinish
|
|
|
|
|
|
|
|
|
|
status_unknown
|
|
|
|
|
move.w $1A(A0),D0 ; dodgy, for debugging
|
|
|
|
|
add.w #$3000,D0
|
|
|
|
|
dc.w $A9C9
|
|
|
|
|
|
|
|
|
|
move.w #-18,$10(A0) ; ioResult
|
|
|
|
|
bra DrvrFinish
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
DrvrClose
|
|
|
|
|
move.w #$4444,D0
|
|
|
|
|
dc.w $A9C9
|
|
|
|
|
|
|
|
|
|
move.w #0,$10(A0) ; ioResult
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
DrvrFinish
|
|
|
|
|
move.w 6(A0),D1 ; iopb.ioTrap
|
|
|
|
|
btst #9,D1 ; noQueueBit
|
|
|
|
|
bne.s DrvrNoIoDone
|
|
|
|
|
move.l $8FC,-(SP) ; jIODone
|
|
|
|
|
DrvrNoIoDone
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
DiskImageSize
|
|
|
|
|
dc.l 0
|
|
|
|
|
|
|
|
|
|
align 9
|
|
|
|
|
DiskImage
|
