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filesys.asm
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filesys.asm
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SECTION code,code
; This file can be translated with A68k or PhxAss and then linked with BLink
; to produce an Amiga executable. Make sure it does not contain any
; relocations, then run it through the filesys.sh script
;
; Patrick: It also works with SAS/C asm+slink, but I had to remove
; the .l from jsr.l and jmp.l.
; Toni Wilen: modified SECTION, compiles now with AsmOne and clones(?)
; Removed absolute RT_AREA references
; 2002.08.06 RDB automount/autoboot support (Toni Wilen)
; 2002.09.11 KS1.3 RDB support (TW)
; 200?.??.?? Picasso96 vblank hack (TW)
; 2006.03.04 Mousehack code integrated (TW)
; 2006.18.07 FileSystem.resource find routine access fault fixed (TW)
; 2007.03.30 mousehack do not start multiple times anymore (TW)
; 2007.06.15 uninitialized variable in memory type selection fixed (stupid me) (TW)
; 2007.08.09 started implementing removable drive support (TW)
; 2007.09.01 ACTION_EXAMINE_ALL (TW)
; 2007.09.05 full filesystem device mounting on the fly (TW)
; 2008.01.09 ACTION_EXAMINE_ALL does not anymore return eac_Entries = 0 with continue (fixes some broken programs)
; 2008.12.11 mousehack -> tablet driver
; 2008.12.25 mousehack cursor sync
; 2009.01.20 clipboard sharing
; 2009.12.27 console hook
; 2010.05.27 Z3Chip
; 2011.12.17 built-in CDFS support
; 2015.09.27 KS 1.2 boot hack supported
; 2015.09.28 KS 1.2 boot hack improved, 1.1 and older BCPL-only DOS support.
; 2016.01.14 'Indirect' boot ROM trap support.
; 2018.03.22 Segment tracking
; 2018.07.08 68060 FPU disable
AllocMem = -198
FreeMem = -210
TRAP_DATA_NUM = 4
TRAP_DATA_SEND_NUM = 1
TRAP_DATA = $8000
TRAP_DATA_SLOT_SIZE = 4096
TRAP_DATA_SECOND = 80
TRAP_DATA_TASKWAIT = (TRAP_DATA_SECOND-4)
TRAP_DATA_EXTRA = 144
TRAP_STATUS = $F000
TRAP_STATUS_SLOT_SIZE = 8
TRAP_STATUS_SECOND = 4
TRAP_STATUS_LOCK_WORD = 2
TRAP_STATUS_STATUS2 = 2
TRAP_STATUS_STATUS = 3
TRAP_DATA_DATA = 4
RTAREA_SYSBASE = $7FFC
RTAREA_GFXBASE = $7FF8
RTAREA_INTBASE = $7FF4
RTAREA_INTXY = $7FF0
RTAREA_MOUSEHACK = $7E00
RTAREA_TRAPTASK = $FFF4
RTAREA_EXTERTASK = $FFF8
RTAREA_INTREQ = $FFFC
; don't forget filesys.c! */
PP_MAXSIZE = 4 * 96
PP_FSSIZE = 400
PP_FSPTR = 404
PP_ADDTOFSRES = 408
PP_FSRES = 412
PP_FSRES_CREATED = 416
PP_DEVICEPROC = 420
PP_EXPLIB = 424
PP_FSHDSTART = 428
PP_TOTAL = (PP_FSHDSTART+140)
NOTIFY_CLASS = $40000000
NOTIFY_CODE = $1234
NRF_SEND_MESSAGE = 1
NRF_SEND_SIGNAL = 2
NRF_WAIT_REPLY = 8
NRF_NOTIFY_INITIAL = 16
NRF_MAGIC = $80000000
; normal filehandler segment entrypoint
dc.l (rom_end-start)/4 ; 4
our_seglist:
dc.l 0 ; 8 /* NextSeg */
start:
bra.s startjmp
dc.w 13 ; 0 12
startjmp:
bra.w filesys_mainloop ; 1 16
dc.l make_dev-start ; 2 20
dc.l filesys_init-start ; 3 24
dc.l moverom-start ; 4 28
dc.l bootcode-start ; 5 32
dc.l setup_exter-start ; 6 36
dc.l bcplwrapper-start ; 7 40
dc.l afterdos-start ; 8 44
dc.l hwtrap_install-start ; 9 48
dc.l hwtrap_entry-start ; 10 52
dc.l keymaphack-start ; 11 56
dc.l fpu060disable-start ; 12 60
bootcode:
lea.l doslibname(pc),a1
jsr -96(a6) ; FindResident
move.l d0,a0
move.l 22(a0),d0
move.l d0,a0
jsr (a0)
rts
fpu060disable:
movec pcr,d0
bset #1,d0
movec d0,pcr
jmp (a5)
; BCPL filehandler segment entry point
; for KS 1.1 and older.
cnop 0,4
dc.l (bcpl_end-bcpl_start)/4+1
our_bcpl_seglist:
dc.l 0
dc.l (bcpl_end-bcpl_start)/4+1
bcpl_start:
; d1 = startup packet
lsl.l #2,d1
move.l d1,d7
bra.w filesys_mainloop_bcpl
cnop 0,4
dc.l 0
dc.l 1
dc.l 4
dc.l 2
bcpl_end:
resident
dc.w $4afc
dc.l 0
dc.l rom_end-resident
dc.b 0,1,0,0
dc.l exter_name-resident
dc.l 0
dc.l start-resident
; KS 1.x does not support RTF_AFTERDOS and KS 2.x RTF_AFTERDOS is broken.
afterdos_hack:
movem.l d0-d2/a0-a2/a6,-(sp)
move.l 4.w,a6
cmp.w #39,20(a6)
bcc.s .rsh
cmp.w #37,20(a6)
bcs.s .rsh
move.w #$FF38,d0
moveq #17,d1
bsr.w getrtbase
jsr (a0)
tst.l d0
beq.s .rsh
moveq #residentcodeend-residentcodestart,d0
move.l d0,d2
moveq #1,d1
jsr AllocMem(a6)
tst.l d0
beq.s .rsh
move.l d0,a2
move.l a2,a0
lea residentcodestart(pc),a1
.cp1
move.l (a1)+,(a0)+
subq.l #4,d2
bne.s .cp1
jsr -$0078(a6) ;Disable
move.l a6,a1
move.w #-$48,a0 ;InitCode
move.l a2,d0
jsr -$01a4(a6) ;SetFunction
move.l d0,residentcodejump2-residentcodestart+2(a2)
lea myafterdos(pc),a0
move.l a0,residentcodejump1-residentcodestart+2(a2)
jsr -$27C(a6) ;CacheClearU
jsr -$007e(a6) ;Enable
.rsh
movem.l (sp)+,d0-d2/a0-a2/a6
rts
myafterdos
move.l (sp),a0
move.l 2(a0),a0
move.l a0,-(sp)
jsr (a0) ;jump to original InitCode
move.l (sp)+,a0
addq.l #4,sp ;remove return address
movem.l d0-d7/a1-a6,-(sp)
move.l a6,a1
move.l a0,d0
move.w #-$48,a0 ;InitCode
jsr -$01a4(a6) ;SetFunction (restore original)
bsr run_afterdos
movem.l (sp)+,d0-d7/a1-a6
rts ;return directly to caller
cnop 0,4
residentcodestart:
btst #2,d0 ;RTF_AFTERDOS?
beq.s resjump
residentcodejump1
jsr $f00000
resjump
residentcodejump2
jmp $f00000
cnop 0,4
residentcodeend:
; v39 RTF_AFTERDOS
afterdos:
movem.l d2-d7/a2-a6,-(sp)
move.l 4.w,a6
lea gfxlibname(pc),a1
moveq #0,d0
jsr -$0228(a6) ;OpenLibrary
move.l d0,d1
move.w #RTAREA_GFXBASE,d0
bsr.w getrtbase
move.l d1,(a0)
lea intlibname(pc),a1
moveq #0,d0
jsr -$0228(a6) ;OpenLibrary
move.l d0,d1
move.w #RTAREA_INTBASE,d0
bsr.w getrtbase
move.l d1,(a0)
bsr run_afterdos
movem.l (sp)+,d2-d7/a2-a6
moveq #0,d0
rts
run_afterdos
bsr.w clipboard_init
bsr.w consolehook
bsr.w segtrack_init
rts
filesys_init:
movem.l d0-d7/a0-a6,-(sp)
move.l 4.w,a6
move.w #$FFEC,d0 ; filesys base
bsr getrtbase
move.l (a0),a5
moveq #0,d5
moveq #0,d0
cmp.w #33,20(a6) ; 1.1 or older?
bcs.s FSIN_explibok
lea.l explibname(pc),a1 ; expansion lib name
moveq #36,d0
moveq #1,d5
jsr -552(a6) ; OpenLibrary
tst.l d0
bne.b FSIN_explibok
lea.l explibname(pc),a1 ; expansion lib name
moveq #0,d0
moveq #0,d5
jsr -552(a6) ; OpenLibrary
FSIN_explibok:
move.l d0,a4
REM ; moved to early hwtrap_install
; create fake configdev
exg a4,a6
move.l a6,d0
beq.s .nocd
btst #4,$110+3(a5)
bne.s .nocd
jsr -$030(a6) ;expansion/AllocConfigDev
tst.l d0
beq.s .nocd
move.l d0,a0
lea start(pc),a1
move.l a1,d0
clr.w d0
move.l d0,32(a0)
move.l #65536,36(a0)
move.w #$0104,16(a0) ;type + product
move.w #2011,16+4(a0) ;manufacturer
moveq #1,d0
move.l d0,22(a0) ;serial
jsr -$01e(a6) ;expansion/AddConfigDev
.nocd
exg a4,a6
EREM
tst.l $10c(a5)
beq.w FSIN_none
move.l #PP_TOTAL,d0
move.l #$10001,d1
jsr AllocMem(a6)
move.l d0,a3 ; param packet
move.l a4,PP_EXPLIB(a3)
moveq #0,d6
FSIN_init_units:
cmp.w $10e(a5),d6
bcc.b FSIN_units_ok
move.l d6,-(sp)
FSIN_nextsub:
move.l $110(a5),d7
tst.w d5
beq.s .oldks
bset #2,d7
.oldks move.l a3,-(sp)
move.l a3,a0
bsr.w make_dev
move.l (sp)+,a3
move.l d1,PP_DEVICEPROC(a3)
cmp.l #-2,d0
beq.s FSIN_nomoresub
swap d6
addq.w #1,d6
swap d6
bra.s FSIN_nextsub
FSIN_nomoresub:
move.l (sp)+,d6
addq.w #1,d6
bra.b FSIN_init_units
FSIN_units_ok:
move.l 4.w,a6
move.l a3,a1
move.l #PP_TOTAL,d0
jsr FreeMem(a6)
FSIN_none:
move.l 4.w,a6
move.l a4,d0
beq.s .noexpclose
move.l a4,a1
jsr -414(a6) ; CloseLibrary
.noexpclose
cmp.w #34,20(a6) ; 1.2 or older?
bcs.w FSIN_tooold
; add MegaChipRAM
moveq #3,d4 ; MEMF_CHIP | MEMF_PUBLIC
cmp.w #36,20(a6)
bcs.s FSIN_ksold
or.w #256,d4 ; MEMF_LOCAL
FSIN_ksold
move.w #$FF80,d0
bsr.w getrtbase
jsr (a0) ; d1 = size, a1 = start address
move.l d0,d5
move.l a1,a0
move.l d1,d0
beq.s FSIN_fchip_done
move.l d4,d1
moveq #-5,d2
lea fchipname(pc),a1
jsr -618(a6) ; AddMemList
FSIN_fchip_done
; only if >=4M chip
cmp.l #$400000,d5
bcs.s FSIN_locmem
cmp.l 62(a6),d5
beq.s FSIN_locmem
jsr -$78(a6)
move.l d5,62(a6) ;LocMem
moveq #0,d0
moveq #(82-34)/2-1,d1
lea 34(a6),a0
.FSIN_locmem1
add.w (a0)+,d0
dbf d1,.FSIN_locmem1
not.w d0
move.w d0,82(a6) ;ChkSum
jsr -$7e(a6)
FSIN_locmem
; add >2MB-6MB chip RAM to memory list (if not already done)
lea $210000,a1
; do not add if RAM detected already
jsr -$216(a6) ; TypeOfMem
tst.l d0
bne.s FSIN_chip_done
move.l d4,d1
moveq #-10,d2
move.l #$200000,a0
move.l d5,d0
sub.l a0,d0
bcs.b FSIN_chip_done
beq.b FSIN_chip_done
sub.l a1,a1
jsr -618(a6) ; AddMemList
FSIN_chip_done
lea fstaskname(pc),a0
lea fsmounttask(pc),a1
moveq #10,d0
bsr createtask
move.l d0,a1
moveq #1,d1
move.w #$FF48,d0 ; store task pointer
bsr.w getrtbase
jsr (a0)
FSIN_tooold
movem.l (sp)+,d0-d7/a0-a6
general_ret:
rts
REM
addextrachip:
move.w #$FF80,d0
bsr.w getrtbase
jsr (a0)
jsr -$0078(a6) ; Disable
lea 322(a6),a0 ; MemHeader
FSIN_scanchip:
move.l (a0),a0 ; first MemList
tst.l (a0)
beq.w FSIN_scannotfound
move.l 20(a0),d1 ; mh_Lower
clr.w d1
tst.l d1
bne.s FSIN_scanchip
move.w 14(a0),d1 ; attributes
bmi.s FSIN_scanchip
and #2,d1 ; MEMF_CHIP?
beq.s FSIN_scanchip
sub.l 24(a0),d0 ; did KS detect all chip?
bmi.s FSIN_scandone
beq.s FSIN_scandone
; add the missing piece
move.l 24(a0),d1
add.l d0,24(a0) ; mh_Upper
add.l d0,28(a0) ; mh_Free
add.l d0,62(a6) ; MaxLocMem
; we still need to update last node's free space
move.l 16(a0),a0 ; mh_First
FSIN_chiploop2
tst.l (a0)
beq.s FSIN_chiploop
move.l (a0),a0
bra.s FSIN_chiploop2
FSIN_chiploop:
move.l a0,d2
add.l 4(a0),d2
;Last block goes to end of chip?
cmp.l d2,d1
beq.s FSIN_chipadd1
;It didn't, add new MemChunk
move.l d1,(a0)
move.l d1,a1
clr.l (a1)+
move.l d0,(a1)
bra.s FSIN_scandone
FSIN_chipadd1:
add.l d0,4(a0)
FSIN_scandone:
jsr -$007e(a6) ; Enable
rts
FSIN_scannotfound:
moveq #3,d4 ; MEMF_CHIP | MEMF_PUBLIC
cmp.w #36,20(a6)
bcs.s FSIN_ksold
or.w #256,d4 ; MEMF_LOCAL
FSIN_ksold
; add >2MB-6MB chip RAM to memory list
lea $210000,a1
; do not add if RAM detected already
jsr -$216(a6) ; TypeOfMem
tst.l d0
bne.s FSIN_chip_done
move.w #$FF80,d0
bsr.w getrtbase
jsr (a0)
move.l d4,d1
moveq #-10,d2
move.l #$200000,a0
sub.l a0,d0
bcs.b FSIN_chip_done
beq.b FSIN_chip_done
sub.l a1,a1
jsr -618(a6) ; AddMemList
FSIN_chip_done
rts
EREM
; d1 = stacksize
; d2 = priority
createproc
movem.l d2-d5/a2/a6,-(sp)
moveq #0,d5
move.l 4.w,a6
move.l d0,d2
move.l d1,d4
move.l a1,d3
move.l a0,a2
lea doslibname(pc),a1
moveq #0,d0
jsr -$0228(a6) ; OpenLibrary
tst.l d0
beq.s .noproc
move.l d0,a6
move.l a2,d1
lsr.l #2,d3
jsr -$08a(a6) ; CreateProc
move.l d0,d5
move.l a6,a1
move.l 4.w,a6
jsr -$019e(a6); CloseLibrary
.noproc
move.l d5,d0
movem.l (sp)+,d2-d5/a2/a6
rts
; this is getting ridiculous but I don't see any other solutions..
fsmounttask
.fsm1 move.l 4.w,a6
moveq #0,d0
bset #13,d0 ; SIGBREAK_CTRL_D
jsr -$013e(a6) ;Wait
lea fsprocname(pc),a0
lea mountproc(pc),a1
moveq #15,d0
move.l #8000,d1
bsr.w createproc
bra.s .fsm1
; dummy process here because can't mount devices with ADNF_STARTPROC from task..
; (AddDosNode() internally calls GetDeviceProc() which accesses ExecBase->ThisTask->pr_GlobVec)
cnop 0,4
dc.l 16
mountproc
dc.l 0
moveq #2,d1
move.w #$FF48,d0 ; get new unit number
bsr.w getrtbaselocal
jsr (a0)
move.l d0,d1
bmi.s .out
bsr.w addfsonthefly
.out moveq #0,d0
rts
trap_task:
move.l 4.w,a6
trap_task_wait
move.l #$100,d0
jsr -$13e(a6) ;Wait
trap_task_check:
moveq #0,d7
; check if we have call lib/func request
move.l #TRAP_STATUS,d0
bsr.w getrtbase
move.l a0,a1
move.l #TRAP_DATA,d0
bsr.w getrtbase
moveq #TRAP_DATA_NUM-1,d6
.nexttrap
tst.b TRAP_STATUS_STATUS(a1)
beq.s .next
cmp.b #$fd,TRAP_STATUS_SECOND+TRAP_STATUS_STATUS(a1)
bne.s .next
addq.l #1,d7
lea TRAP_DATA_SECOND+4(a0),a4
lea TRAP_STATUS_SECOND(a1),a5
movem.l d6/d7/a0/a1/a4/a5/a6,-(sp)
move.w (a5),d4 ;command
movem.l (a4),a0-a2
movem.l (a4),d0-d2
cmp.w #18,d4
bne.s .notcalllib
bsr.w hw_call_lib
bra.s .calldone
.notcalllib
cmp.w #19,d4
bne.s .calldone
bsr.w hw_call_func
.calldone
movem.l (sp)+,d6/d7/a0-a1/a4/a5/a6
move.l d0,(a4)
move.b #2,TRAP_STATUS_STATUS(a5)
.next
add.w #TRAP_DATA_SLOT_SIZE,a0
addq.w #TRAP_STATUS_SLOT_SIZE,a1
dbf d6,.nexttrap
tst.l d7
beq.w trap_task_wait
bra.w trap_task_check
exter_task:
move.l 4.w,a6
exter_task_wait
move.l #$100,d0
jsr -$13e(a6) ;Wait
bsr.s exter_do
bra.s exter_task_wait
exter_done
rts
exter_do
moveq #10,d7
EXTT_loop
move.w #$FF50,d0 ; exter_int_helper
bsr.w getrtbaselocal
move.l d7,d0
jsr (a0)
tst.l d0
beq.s exter_done
moveq #11,d7
cmp.w #1,d0
blt.w EXTT_loop
bgt.b EXTT_signal_reply
jsr -366(a6) ; PutMsg
bra.b EXTT_loop
EXTT_signal_reply:
cmp.w #2,d0
bgt.b EXTT_reply
move.l d1,d0
jsr -$144(a6) ; Signal
bra.b EXTT_loop
EXTT_reply:
cmp.w #3,d0
bgt.b EXTT_cause
jsr -$17a(a6) ; ReplyMsg
bra.b EXTT_loop
EXTT_cause:
cmp.w #4,d0
bgt.b EXTT_notificationhack
jsr -$b4(a6) ; Cause
bra.b EXTT_loop
EXTT_notificationhack:
cmp.w #5,d0
bgt.b EXTT_shellexec
movem.l a0-a1,-(sp)
moveq #38,d0
move.l #65536+1,d1
jsr AllocMem(a6)
movem.l (sp)+,a0-a1
move.l d0,a2
move.b #8,8(a2)
move.l a0,14(a2)
move.w #38,18(a2)
move.l #NOTIFY_CLASS,20(a2)
move.w #NOTIFY_CODE,24(a2)
move.l a1,26(a2)
move.l 16(a1),a0
move.l a2,a1
jsr -366(a6) ; PutMsg
bra.w EXTT_loop
EXTT_shellexec
cmp.w #6,d0
bgt.s EXTT_shellexec2
bsr.s doshellexecute
bra.w EXTT_loop
EXTT_shellexec2
cmp.w #7,d0
bgt.w EXTT_loop
bsr.s doshellexecute2
bra.w EXTT_loop
doshellexecute
lea shellexecname(pc),a0
lea shellexecproc(pc),a1
moveq #1,d0
move.l #10000,d1
bsr.w createproc
move.l d0,d1
move.w #$FF50,d0 ; exter_int_helper
bsr.w getrtbaselocal
moveq #20,d0
jsr (a0)
rts
doshellexecute2
movem.l d2-d4/a2-a4,-(sp)
sub.l a4,a4
moveq #0,d3
move.w #$FF50,d0 ; exter_int_helper
bsr.w getrtbaselocal
move.l a0,a3
moveq #30,d0
jsr (a3)
; returns requested data size in D0
move.l d0,d2
beq.s .end1
move.l #65536+1,d1
jsr AllocMem(a6)
move.l d0,a4
tst.l d0
beq.s .she1
move.l d2,(a4)
lea shellexecname(pc),a0
lea shellexecproc2(pc),a1
moveq #1,d0
move.l #4096,d1
bsr.w createproc
move.l d0,d3
beq.s .she1
sub.l #92,d3
.she1
moveq #31,d0
move.l a4,a0
; send process struct and data
move.l d3,d1
jsr (a3)
tst.l d3
beq.s .end2
move.l a4,d0
beq.s .end2
move.l d3,a1 ; Task
moveq #0,d0
bset #13,d0 ; SIGBREAK_CTRL_D
jsr -$144(a6) ; Signal
bra.s .end1
.end2
move.l a4,d0
beq.s .end1
move.l a4,a1
move.l (a4),d0
jsr FreeMem(a6)
.end1
movem.l (sp)+,d2-d4/a2-a4
rts
cnop 0,4
dc.l 16
shellexecproc2
dc.l 0
move.l 4.w,a6
lea doslibname(pc),a1
moveq #0,d0
jsr -$228(a6) ; OpenLibrary
move.l d0,d6
moveq #0,d0
bset #13,d0 ; SIGBREAK_CTRL_D
jsr -$013e(a6) ;Wait
move.w #$FF50,d0 ; exter_int_helper
bsr.w getrtbaselocal
moveq #32,d0
; get data
jsr (a0)
move.l d0,a4 ;data
; 0 L size (including this field)
; 4 PT command
; 8 PT params
; 12 PT dir
; 16 PT command + params
; 20 L stack size
; 24 L priority
; 28 L flags
; 32 L id
; 36 L datasize
; 40 PT data
; 44 PT tmpout
; 48 PT out buffer (128)
; 52 PT tmpbinname
move.l d6,a0
cmp.w #36,20(a0)
bcc.s .fstask1
jsr -$0084(a6) ; Forbid
sub.l a1,a1
jsr -$126(a6) ; FindTask
move.l d0,a0
moveq #0,d2
; empty pr_FileSystemTask, find SYS: assign
move.l d6,a1
move.l 34(a1),a1 ;dl_Root
move.l 24(a1),a1 ; rn_Info
add.l a1,a1
add.l a1,a1
move.l 4(a1),a1 ;di_DevInfo
add.l a1,a1
add.l a1,a1
.nextdi
moveq #1,d0
cmp.l 4(a1),d0
bne.s .noassign
move.l 40(a1),a2
add.l a2,a2
add.l a2,a2
move.l (a2),d0
and.l #~$00202020,d0
cmp.l #$03535953,d0 ;\03SYS
bne.s .nosys
tst.l 168(a0)
bne.s .noassign
move.l 8(a1),168(a0) ;pr_FileSystemTask
bra.s .noassign
.nosys
swap d0
and.w #~$0020,d0
cmp.w #$0154,d0 ;\01T
bne.s .noassign
moveq #1,d2
.noassign
move.l (a1),d0
lsl.l #2,d0
move.l d0,a1
bne.s .nextdi
.nextdi0
jsr -$008a(a6) ;Permit
moveq #-2,d5
tst.w d2
beq .seproc6
.fstask1
exg d6,a6
move.l sp,a3
lea -8*8(sp),sp
move.l sp,d5
move.l d5,a2
; SYS_Input
move.l #$80000000+32+1,(a2)+
lea nil_name(pc),a0
move.l a0,d1
move.l #1005,d2
jsr -$1e(a6) ;Open
move.l d0,(a2)+
; SYS_Output
move.l #$80000000+32+2,(a2)+
move.l #1006,d2
move.l 44(a4),d1
bne.s .outfile
move.l #1005,d2
lea nil_name(pc),a0
move.l a0,d1
.outfile
jsr -$1e(a6) ;Open
move.l d0,(a2)+
; NP_CurrentDir
moveq #1,d0 ; TAG_IGNORE
move.l d0,(a2)+
moveq #0,d0
move.l d0,(a2)+
move.l 12(a4),a0
tst.b (a0)
beq.s .nodir1
move.l a0,d1
moveq #-2,d2
jsr -$0054(a6) ;Lock
tst.l d0
beq.s .nodir1
subq.l #8,a2
move.l #$80000000+1000+10,(a2)+
move.l d0,(a2)+
.nodir1
; NP_StackSize
move.l 20(a4),d0
beq.s .stk1
move.l #$80000000+1000+11,(a2)+
move.l d0,(a2)+
.stk1
; NP_Priority
move.l #$80000000+1000+13,(a2)+
move.l 24(a4),(a2)+
; NP_WindowPtr
moveq #1,d0 ; TAG_IGNORE
move.l d0,(a2)+
moveq #0,d0
move.l d0,(a2)+
move.l 28(a4),d0
btst #2,d0
beq.s .nowp1
subq.l #8,a2
move.l #$80000000+1000+15,(a2)+
moveq #-1,d0
move.l d0,(a2)+
.nowp1
clr.l (a2)+
clr.l (a2)
move.l d5,a2
tst.l 40(a4)
beq.s .nobin
move.l #1006,d2
move.l 52(a4),d1
jsr -$1e(a6) ;Open
move.l d0,d4
beq.s .nobin
move.l d4,d1
move.l 40(a4),d2
move.l 36(a4),d3
jsr -$30(a6) ;Write
move.l d4,d1
jsr -$24(a6)
.nobin
cmp.w #36,20(a6)
bcc.s .seproc5
sub.l a1,a1
exg d6,a6
jsr -$126(a6) ; FindTask
exg d6,a6
move.l d0,a0
move.l 2*8+4(a2),d0
beq.s .ncur
move.l d0,152(a0) ; pr_CurrentDir
.ncur
move.l 16(a4),d1 ; Command
moveq #0,d2 ; Input
move.l 1*8+4(a2),d3 ; Output
jsr -$de(a6) ; Execute
bra.s .seproc4
.seproc5
move.l 16(a4),d1
move.l a2,d2
jsr -$25e(a6) ; SystemTagList
.seproc4
move.l d0,d5
move.l 0*8+4(a2),d1
beq.s .nof2
jsr -$24(a6) ;Close
.nof2
move.l 1*8+4(a2),d4
beq.s .nof3
tst.l 44(a4)
beq.s .nof21
move.l d4,d1
moveq #0,d2
moveq #-1,d3
jsr -$42(a6) ;Seek
.nof23
move.l d4,d1
move.l 48(a4),d2
move.l #128,d3
jsr -$2a(a6) ;Read
move.l d0,d1
move.w #$FF50,d0 ; exter_int_helper
bsr.w getrtbaselocal
moveq #34,d0
; return output
jsr (a0)
cmp.l d1,d3
beq.s .nof23
moveq #34,d0
moveq #-1,d1
jsr (a0)
.nof21
move.l d4,d1
jsr -$24(a6) ;Close
move.l 44(a4),d1
beq.s .nof22
jsr -$48(a6) ;DeleteFile
.nof22
.nof3
move.l 52(a4),d1
beq.s .nobinf
jsr -$48(a6) ;DeleteFile
.nobinf
cmp.l #-1,d5
bne.s .nof1
move.l 2*8+4(a2),d1
beq.s .nof1
jsr -$5a(a6) ;Unlock