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uae-wii/src/filesys.asm

1065 lines
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NASM
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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)
AllocMem = -198
FreeMem = -210
; don't forget filesys.c! */
PP_MAXSIZE = 4 * 96
PP_FSSIZE = 400
PP_FSPTR = 404
PP_FSRES = 408
PP_EXPLIB = 412
PP_FSHDSTART = 416
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 = $80000000
dc.l 16
our_seglist:
dc.l 0 ;/* NextSeg */
start:
bra filesys_mainloop
dc.l make_dev-start
dc.l filesys_init-start
dc.l exter_server-start
dc.l bootcode-start
dc.l setup_exter-start
dc.l p96vsyncfix1-start
dc.l mousehack_x-start
bootcode:
lea.l doslibname(pc),a1
jsr -96(a6) ; FindResident
move.l d0,a0
move.l 22(a0),d0
move.l d0,a0
jsr (a0)
rts
filesys_init:
movem.l d0-d7/a0-a6,-(sp)
move.l 4.w,a6
move.w #$FFFC,d0 ; filesys base
bsr getrtbase
move.l (a0),a5
lea.l explibname(pc),a1 ; expansion lib name
moveq #36,d0
moveq #0,d5
jsr -552(a6) ; OpenLibrary
tst.l d0
bne.b FSIN_explibok
lea.l explibname(pc),a1 ; expansion lib name
moveq #0,d0
moveq #1,d5
jsr -552(a6) ; OpenLibrary
FSIN_explibok:
move.l d0,a4
move.l #PP_TOTAL,d0
moveq #1,d1 ; MEMF_PUBLIC
jsr AllocMem(a6)
move.l d0,a3 ; param packet
move.l a4,PP_EXPLIB(a3)
moveq #0,d6
FSIN_init_units:
cmp.l $10c(a5),d6
bcc.b FSIN_units_ok
move.l d6,-(sp)
FSIN_nextsub:
moveq #1,d7
move.l a3,-(sp)
move.l a3,a0
bsr.w make_dev
move.l (sp)+,a3
cmp.l #-2,d0
beq.s FSIN_nomoresub
swap d6
addq.w #1,d6
swap d6
bra.s FSIN_nextsub
FSIN_nomoresub:
move.l (sp)+,d6
addq.w #1,d6
bra.b FSIN_init_units
FSIN_units_ok:
move.l 4.w,a6
move.l a4,a1
jsr -414(a6) ; CloseLibrary
; move.w #$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.s FSIN_scandone
; move.w 14(a0),d1 ; attributes
; 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
; 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:
; add.l d0,4(a0)
;FSIN_scandone:
; jsr -$007e(a6) ; Enable
; add >2MB chip RAM to memory list
move.w #$FF80,d0
bsr.w getrtbase
jsr (a0)
moveq.l #3,d1
moveq.l #-10,d2
move.l #$200000,a0
sub.l a0,d0
bcs.b FSIN_chip_done
beq.b FSIN_chip_done
moveq.l #0,d4
move.l d4,a1
jsr -618(a6) ; AddMemList
FSIN_chip_done
movem.l (sp)+,d0-d7/a0-a6
general_ret:
rts
exter_data:
exter_server:
movem.l a2,-(sp)
move.w #$FF50,d0 ; exter_int_helper
bsr.w getrtbase
moveq.l #0,d0
jsr (a0)
tst.l d0
beq.w exter_server_exit
; This is the hard part - we have to send some messages.
move.l 4.w,a6
EXTS_loop:
move.w #$FF50,d0 ; exter_int_helper
bsr.w getrtbase
moveq.l #2,d0
jsr (a0)
cmp.w #1,d0
blt.b EXTS_done
bgt.b EXTS_signal_reply
jsr -366(a6) ; PutMsg
bra.b EXTS_loop
EXTS_signal_reply:
cmp.w #2,d0
bgt.b EXTS_reply
move.l d1,d0
jsr -$144(a6) ; Signal
bra.b EXTS_loop
EXTS_reply:
cmp.w #3,d0
bgt.b EXTS_cause
jsr -$17a(a6) ; ReplyMsg
bra.b EXTS_loop
EXTS_cause:
cmp.w #4,d0
bgt.b EXTS_notificationhack
jsr -$b4(a6) ; Cause
bra.b EXTS_loop
EXTS_notificationhack:
cmp.w #5,d0
bgt.b EXTS_done
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 EXTS_loop
EXTS_done:
move.w #$FF50,d0 ;exter_int_helper
bsr.w getrtbase
moveq.l #4,d0
jsr (a0)
moveq.l #1,d0 ; clear Z - it was for us.
exter_server_exit:
movem.l (sp)+,a2
rts
setup_exter:
movem.l d0-d1/a0-a1,-(sp)
moveq.l #26,d0
move.l #$10001,d1
jsr AllocMem(a6)
move.l d0,a1
lea.l exter_name(pc),a0
move.l a0,10(a1)
lea.l exter_data(pc),a0
move.l a0,14(a1)
lea.l exter_server(pc),a0
move.l a0,18(a1)
move.w #$0214,8(a1)
moveq.l #3,d0
jsr -168(a6) ; AddIntServer
movem.l (sp)+,d0-d1/a0-a1
rts
addfs: ; a0 = first hunk, a1 = parmpacket
movem.l d0-d1/a0-a3/a6,-(sp)
move.l 4.w,a6
move.l a0,a2
move.l a1,a3
move.l #62+128,d0 ; sizeof(FileSysEntry) + patchflags;
move.l #$10001,d1
jsr -198(a6)
move.l d0,a0
moveq #0,d0
lea PP_FSHDSTART(a3),a1
af1 move.b 0(a1,d0.w),14(a0,d0.w)
addq.w #1,d0
cmp.w #140,d0
bne.s af1
move.l a2,d0
lsr.l #2,d0
move.l d0,54(a0) ;seglist
move.l a0,a1
lea exter_name(pc),a0
move.l a0,10(a1) ; name
move.l PP_FSRES(a3),a0 ; FileSystem.resource
lea 18(a0),a0 ; fsr_FileSysEntries
jsr -$f0(a6) ;AddHead
movem.l (sp)+,d0-d1/a0-a3/a6
rts
relocate: ;a0=pointer to executable, returns first segment in A0
movem.l d1-d7/a1-a6,-(sp)
move.l 4.w,a6
move.l a0,a2
cmp.l #$3f3,(a2)+
bne.w ree
addq.l #8,a2 ; skip name end and skip total hunks + 1
move.l 4(a2),d7 ; last hunk
sub.l (a2),d7 ; first hunk
addq.l #8,a2 ; skip hunk to load first and hunk to load last
addq.l #1,d7
move.l a2,a3
move.l d7,d0
add.l d0,d0
add.l d0,d0
add.l d0,a3
move.l a2,a4
; allocate hunks
sub.l a5,a5 ;prev segment
moveq #0,d6
r15 move.l (a2),d2 ; hunk size (header)
lsl.l #2,d2
moveq #1,d1
btst #30,d3 ; chip mem?
beq.s r2
bset #1,d1
r2 bset #16,d1
bclr #31,d3
bclr #30,d3
move.l d2,d0
bne.s r17
clr.l (a2)+ ; empty hunk
bra.s r18
r17 addq.l #8,d0 ; size + pointer to next hunk + hunk size
jsr AllocMem(a6)
tst.l d0
beq.w ree
move.l d0,a0
move.l d2,(a0)+ ; store size
move.l a0,(a2)+ ; store new pointer
move.l a5,d1
beq.s r10
move.l a0,d0
lsr.l #2,d0
move.l d0,(a5)
r10 move.l a0,a5
r18 addq.l #1,d6
cmp.l d6,d7
bne.s r15
moveq #0,d6
r3 move.l d6,d1
add.l d1,d1
add.l d1,d1
move.l 0(a4,d1.l),a0
addq.l #4,a0
move.l (a3)+,d3 ; hunk type
move.l (a3)+,d4 ; hunk size
lsl.l #2,d4
cmp.l #$3e9,d3 ;code
beq.s r4
cmp.l #$3ea,d3 ;data
bne.s r5
r4
; code and data
move.l d4,d0
r6 tst.l d0
beq.s r7
move.b (a3)+,(a0)+
subq.l #1,d0
bra.s r6
r5
cmp.l #$3eb,d3 ;bss
bne.s ree
r7 ; scan for reloc32 or hunk_end
move.l (a3)+,d3
cmp.l #$3ec,d3 ;reloc32
bne.s r13
; relocate
move.l d6,d1
add.l d1,d1
add.l d1,d1
move.l 0(a4,d1.l),a0 ; current hunk
addq.l #4,a0
r11 move.l (a3)+,d0 ;number of relocs
beq.s r7
move.l (a3)+,d1 ;hunk
add.l d1,d1
add.l d1,d1
move.l 0(a4,d1.l),d3 ;hunk start address
addq.l #4,d3
r9 move.l (a3)+,d2 ;offset
add.l d3,0(a0,d2.l)
subq.l #1,d0
bne.s r9
bra.s r11
r13
cmp.l #$3f2,d3 ;end
bne.s ree
addq.l #1,d6
cmp.l d6,d7
bne.w r3
moveq #1,d7
move.l (a4),a0
r0 move.l d7,d0
movem.l (sp)+,d1-d7/a1-a6
rts
ree move.w #30000,d0
re1 move.w #$f00,$dff180
move.w #$00f,$dff180
move.w #$0f0,$dff180
dbf d0,re1
moveq #0,d7
bra.s r0
fsres
movem.l d1/a0-a2/a6,-(sp)
move.l 4.w,a6
lea $150(a6),a0 ;ResourceList
move.l (a0),a0 ;lh_Head
fsres3
tst.l (a0) ;end of list?
beq.s fsres1
move.l 10(a0),a1 ;name
lea fsresname(pc),a2
fsres5
move.b (a1)+,d0
move.b (a2)+,d1
cmp.b d1,d0
bne.s fsres2
tst.b d0
beq.s fsres4
bra.s fsres5
fsres2
move.l (a0),a0
bra.s fsres3
; FileSystem.resource does not exist -> create it
fsres1
moveq #32,d0 ; sizeof(FileSysResource)
move.l #$10001,d1
jsr AllocMem(a6)
move.l d0,a2
move.b #8,8(a2) ; NT_RESOURCE
lea fsresname(pc),a0
move.l a0,10(a2) ; node name
lea exter_name(pc),a0
move.l a0,14(a2) ; fsr_Creator
lea 18(a2),a0
move.l a0,(a0) ; NewList() fsr_FileSysEntries
addq.l #4,(a0)
move.l a0,8(a0)
lea $150(a6),a0 ; ResourceList
move.l a2,a1
jsr -$f6(a6) ; AddTail
move.l a2,a0
fsres4
move.l a0,d0
movem.l (sp)+,d1/a0-a2/a6
rts
make_dev: ; IN: A0 param_packet, D6: unit_no, D7: boot, A4: expansionbase
bsr.w fsres
move.l d0,PP_FSRES(a0) ; pointer to FileSystem.resource
move.l a0,-(sp)
move.w #$FFFC,d0 ; filesys base
bsr.w getrtbase
move.l (a0),a5
move.w #$FF28,d0 ; fill in unit-dependent info (filesys_dev_storeinfo)
bsr.w getrtbase
move.l a0,a1
move.l (sp)+,a0
clr.l PP_FSSIZE(a0) ; filesystem size
clr.l PP_FSPTR(a0) ; filesystem memory
jsr (a1)
; ret:0=virtual,1=hardfile,2=rdbhardfile,-1=hardfile-donotmount,-2=no more subunits
move.l d0,d3
cmp.l #-2,d3
beq.w general_ret
cmp.l #2,d3
beq.s mountalways
; KS < V36: init regular hardfiles only if filesystem is loaded
and.l d5,d0
beq.s mountalways ; >= 36
tst.l PP_FSSIZE(a0)
beq.w general_ret ; no filesystem -> don't mount
mountalways
; allocate memory for loaded filesystem
move.l PP_FSSIZE(a0),d0
beq.s nordbfs1
move.l a0,-(sp)
moveq #1,d1
move.l 4.w,a6
jsr AllocMem(a6)
move.l (sp)+,a0
move.l d0,PP_FSPTR(a0)
nordbfs1:
tst.l d3
bpl.s do_mount
; do not mount but we might need to load possible custom filesystem(s)
move.l a0,a1
move.w #$FF20,d0 ; record in ui.startup (filesys_dev_remember)
bsr.w getrtbase
jsr (a0)
bra.w dont_mount
do_mount:
move.l a4,a6
move.l a0,-(sp)
jsr -144(a6) ; MakeDosNode()
move.l (sp)+,a0 ; parmpacket
move.l a0,a1
move.l d0,a3 ; devicenode
move.w #$FF20,d0 ; record in ui.startup (filesys_dev_remember)
bsr.w getrtbase
jsr (a0)
moveq #0,d0
move.l d0,8(a3) ; dn_Task
move.l d0,16(a3) ; dn_Handler
move.l d0,32(a3) ; dn_SegList
dont_mount
tst.l PP_FSPTR(a1) ; filesystem?
beq.s nordbfs2
move.l PP_FSPTR(a1),a0
bsr.w relocate
movem.l d0/a0-a1,-(sp)
move.l PP_FSSIZE(a1),d0
move.l PP_FSPTR(a1),a1
move.l 4.w,a6
jsr FreeMem(a6)
movem.l (sp)+,d0/a0-a1
tst.l d0
beq.s nordbfs2
bsr.w addfs
nordbfs2:
tst.l d3
bmi.w general_ret
move.w #$FF18,d0 ; update dn_SegList if needed (filesys_dev_bootfilesys)
bsr.w getrtbase
jsr (a0)
move.l d3,d0
move.b 79(a1),d3 ; bootpri
tst.l d0
bne.b MKDV_doboot
MKDV_is_filesys:
move.l #4000,20(a3) ; dn_StackSize
lea.l our_seglist(pc),a1
move.l a1,d0
lsr.l #2,d0
move.l d0,32(a3) ; dn_SegList
moveq #-1,d0
move.l d0,36(a3) ; dn_GlobalVec
MKDV_doboot:
tst.l d7
beq.b MKDV_noboot
move.l 4.w,a6
moveq.l #20,d0
moveq.l #0,d1
jsr AllocMem(a6)
move.l d0,a1 ; bootnode
moveq #0,d0
move.l d0,(a1)
move.l d0,4(a1)
move.w d0,14(a1)
move.w #$1000,d0
or.b d3,d0
move.w d0,8(a1)
move.l $104(a5),10(a1) ; filesys_configdev
move.l a3,16(a1) ; devicenode
lea.l 74(a4),a0 ; MountList
jmp -270(a6) ; Enqueue()
MKDV_noboot:
move.l a3,a0
moveq #0,d1
move.l d1,a1
moveq #-1,d0
move.l a4,a6 ; expansion base
jmp -150(a6) ; AddDosNode
filesys_mainloop:
move.l 4.w,a6
moveq.l #0,d0
move.l d0,a1
jsr -294(a6) ; FindTask
move.l d0,a0
lea.l $5c(a0),a5 ; pr_MsgPort
; Open DOS library
lea.l doslibname(pc),a1
moveq.l #0,d0
jsr -552(a6) ; OpenLibrary
move.l d0,a2
; Allocate some memory. Usage:
; 0: lock chain
; 4: command chain
; 8: second thread's lock chain
; 12: dummy message
; 32: the volume (80+44+1 bytes)
; 157: mousehack started-flag
move.l #80+44+1+20+12+1,d0
move.l #$10001,d1 ; MEMF_PUBLIC | MEMF_CLEAR
jsr AllocMem(a6)
move.l d0,a3
moveq.l #0,d6
move.l d6,(a3)
move.l d6,4(a3)
move.l d6,8(a3)
moveq.l #0,d5 ; No commands queued.
; Fetch our startup packet
move.l a5,a0
jsr -384(a6) ; WaitPort
move.l a5,a0
jsr -372(a6) ; GetMsg
move.l d0,a4
move.l 10(a4),d3 ; ln_Name
move.w #$FF40,d0 ; startup_handler
bsr.w getrtbase
moveq.l #0,d0
jsr (a0)
bsr.w mousehack_init
bra.w FSML_Reply
; We abuse some of the fields of the message we get. Offset 0 is
; used for chaining unprocessed commands, and offset 1 is used for
; indicating the status of a command. 0 means the command was handed
; off to some UAE thread and did not complete yet, 1 means we didn't
; even hand it over yet because we were afraid that might blow some
; pipe limit, and -1 means the command was handed over and has completed
; processing by now, so it's safe to reply to it.
FSML_loop:
bsr.w mousehack_init
move.l a5,a0
jsr -384(a6) ; WaitPort
move.l a5,a0
jsr -372(a6) ; GetMsg
move.l d0,a4
; notify reply?
cmp.w #38, 18(a4)
bne.s nonotif
cmp.l #NOTIFY_CLASS, 20(a4)
bne.s nonotif
cmp.w #NOTIFY_CODE, 24(a4)
bne.s nonotif
move.l 26(a4),a0 ; NotifyRequest
move.l 12(a0),d0 ; flags
and.l #NRF_WAIT_REPLY|NRF_MAGIC,d0
cmp.l #NRF_WAIT_REPLY|NRF_MAGIC,d0
bne.s nonoti
and.l #~NRF_MAGIC,12(a0)
move.l 16(a0),a0
move.l a4,a1
move.b #8,(a1)
jsr -366(a6) ; PutMsg
bra.s FSML_loop
nonoti
move.l a4,a1
moveq #38,d0
jsr FreeMem(a6)
bra.s FSML_loop
nonotif
move.l 10(a4),d3 ; ln_Name
bne.b FSML_FromDOS
; It's a dummy packet indicating that some queued command finished.
move.w #$FF50,d0 ; exter_int_helper
bsr.w getrtbase
moveq.l #1,d0
jsr (a0)
; Go through the queue and reply all those that finished.
lea.l 4(a3),a2
move.l (a2),a0
FSML_check_old:
move.l a0,d0
beq.w FSML_loop
move.l (a0),a1
move.l d0,a0
; This field may be accessed concurrently by several UAE threads.
; This _should_ be harmless on all reasonable machines.
move.l 4(a0),d0
bpl.b FSML_check_next
movem.l a0/a1,-(a7)
move.l 10(a0),a4
bsr.b ReplyOne
subq.l #1,d5 ; One command less in the queue
movem.l (a7)+,a0/a1
move.l a1,(a2)
move.l a1,a0
bra.b FSML_check_old
FSML_check_next:
move.l a0,a2
move.l a1,a0
bra.b FSML_check_old
FSML_FromDOS:
; Limit the number of outstanding started commands. We can handle an
; unlimited number of unstarted commands.
cmp.l #20,d5
bcs FSML_DoCommand
; Too many commands queued.
moveq.l #1,d0
move.l d0,4(a4)
bra.b FSML_Enqueue
FSML_DoCommand:
bsr.b LockCheck ; Make sure there are enough locks for the C code to grab.
move.w #$FF30,d0 ; filesys_handler
bsr.w getrtbase
jsr (a0)
tst.l d0
beq.b FSML_Reply
; The command did not complete yet. Enqueue it and increase number of
; queued commands
; The C code already set 4(a4) to 0
addq.l #1,d5
FSML_Enqueue:
move.l 4(a3),(a4)
move.l a4,4(a3)
bra.w FSML_loop
FSML_Reply:
move.l d3,a4
bsr.b ReplyOne
bra.w FSML_loop
ReplyOne:
move.l (a4),a1 ; dp_Link
move.l 4(a4),a0 ; dp_Port
move.l a5,4(a4)
jmp -366(a6) ; PutMsg
; ugly code to avoid calling AllocMem / FreeMem from native C code.
; We keep a linked list of 3 locks. In theory, only one should ever
; be used. Before handling every packet, we check that the list has the
; right length.
LockCheck:
move.l d5,-(a7)
moveq.l #-4,d5 ; Keep three locks
move.l (a3),a2
move.l a2,d7
LKCK_Loop:
move.l a2,d1
beq LKCK_ListEnd
addq.l #1,d5
beq.b LKCK_TooMany
move.l a2,a1
move.l (a2),a2
bra.b LKCK_Loop
LKCK_ListEnd:
addq.l #1,d5
beq.b LKCK_ret
move.l d7,a2
moveq.l #24,d0 ; sizeof Lock is 20, 4 for chain
moveq.l #1,d1 ; MEMF_PUBLIC
jsr AllocMem(a6)
addq.w #1,d6
move.l d0,a2
move.l d7,(a2)
move.l a2,d7
bra.b LKCK_ListEnd
LKCK_TooMany:
move.l (a2),d0 ; We have too many, but we tolerate that to some extent.
beq.b LKCK_ret
move.l d0,a0
move.l (a0),d0
beq.b LKCK_ret
move.l d0,a0
move.l (a0),d0
beq.b LKCK_ret
moveq.l #0,d0 ; Now we are sure that we really have too many. Delete some.
move.l d0,(a1)
LKCK_TooManyLoop:
move.l a2,a1
move.l (a1),a2
moveq.l #24,d0
jsr FreeMem(a6)
add.l #$10000,d6
move.l a2,d0
bne.b LKCK_TooManyLoop
LKCK_ret:
move.l d7,(a3)
move.l (a7)+,d5
rts
getrtbase:
lea start-8-4(pc),a0
and.l #$FFFF,d0
add.l d0,a0
rts
;p96 stuff
p96flag dc.w 0
p96vsyncfix1
cmp.l #34,8(sp) ; picasso_WaitVerticalSync?
bne.s p961
movem.l d0-d1/a0-a2/a6,-(sp)
move.l 4.w,a6
sub.l a1,a1
jsr -$126(a6) ; FindTask
move.l d0,a2
move.l a2,a1
moveq #-20,d0
jsr -$12c(a6) ; SetTaskPri
lea p96flag(pc),a0
move.w (a0),d1
p962 cmp.w (a0),d1
beq.s p962
move.l a2,a1
jsr -$12c(a6) ; SetTaskPri
moveq #1,d1
movem.l (sp)+,d0-d1/a0-a2/a6
addq.l #4,sp ; return directly to caller
p961 rts
; mouse hack
newlist:
move.l a0,(a0)
addq.l #4,(a0)
clr.l 4(a0)
move.l a0,8(a0)
rts
createport:
movem.l d2/a2/a6,-(sp)
move.l 4,a6
moveq #-1,d0
jsr -$014a(a6) ;AllocSignal
sub.l a0,a0
move.l d0,d2
bmi.s .f
moveq #34,d0
move.l #65536+1,d1
jsr AllocMem(a6)
sub.l a0,a0
move.l d0,a2
tst.l d0
beq.s .f
move.b #4,8(a2) ;NT_MSGPORT
move.b d2,15(a2)
sub.l a1,a1
jsr -$0126(a6) ;FindTask
move.l d0,16(a2)
lea 20(a2),a0
bsr.w newlist
move.l a2,a0
.f move.l a0,d0
movem.l (sp)+,d2/a2/a6
rts
createio:
movem.l d2/a2/a6,-(sp)
move.l 4,a6
tst.l d0
beq.s .f
move.l d0,a2
moveq #48,d2
move.l d2,d0
move.l #65536+1,d1
jsr AllocMem(a6)
move.l d0,a0
move.b #10,8(a0) ;NT_MESSAGE
move.l d2,18(a0)
move.l a2,14(a0)
.f movem.l (sp)+,d2/a2/a6
rts
createtask:
movem.l d2/d3/a2/a3/a6,-(sp)
move.l 4,a6
move.l a0,d2
move.l a1,d3
move.l #92+2048,d0
move.l #65536+1,d1
jsr AllocMem(a6)
tst.l d0
beq .f
move.l d0,a2
move.b #1,8(a2) ;NT_TASK
move.l d2,10(a2)
lea 92(a2),a3
move.l a3,58(a2)
lea 2048(a3),a3
move.l a3,62(a2)
move.l a3,54(a2)
move.l a2,a1
move.l d3,a2
sub.l a3,a3
jsr -$011a(a6) ;AddTask
.f movem.l (sp)+,d2/d3/a2/a3/a6
rts
mousehack_e: dc.w 0
mousehack_x: dc.w 0
mousehack_y: dc.w 0
MH_INT = 0
MH_FOO = (MH_INT+22)
MH_IEV = (MH_FOO+16)
MH_IO = (MH_IEV+22)
MH_TM = (MH_IO+4)
MH_END = (MH_TM+4)
mousehack_init:
move.l a0,-(sp)
tst.b 157(a3)
bne.s .no
lea mousehack_e(pc),a0
cmp.b #1,(a0)
bne.s .no
lea mhname(pc),a0
lea mousehack_task(pc),a1
bsr createtask
st 157(a3)
;tell native side that mousehack is active
move.w #$FF38,d0
bsr.w getrtbase
jsr (a0)
.no move.l (sp)+,a0
rts
mousehack_task:
move.l 4,a6
moveq #-1,d0
jsr -$014a(a6) ;AllocSignal
moveq #0,d2
bset d0,d2
sub.l a1,a1
jsr -$0126(a6) ;FindTask
move.l d0,a4
moveq #20,d0
move.l a4,a1
jsr -$012c(a6) ;SetTaskPri
moveq #0,d0
lea intlibname(pc),a1
jsr -$0228(a6)
move.l d0,d7
moveq #0,d0
move.w #MH_END,d0
move.l #65536+1,d1
jsr AllocMem(a6)
move.l d0,a5
bsr.w createport
bsr.w createio
move.l d0,MH_IO(a5)
beq .f
move.l d0,a1
lea inp_dev(pc),a0
moveq #0,d0
moveq #0,d1
jsr -$01bc(a6) ;OpenDevice
tst.l d0
bne .f
bsr.w createport
bsr.w createio
move.l d0,MH_TM(a5)
beq .f
move.l d0,a1
lea tim_dev(pc),a0
moveq #0,d0
moveq #0,d1
jsr -$01bc(a6) ;OpenDevice
tst.l d0
bne .f
lea MH_FOO(a5),a3
move.l a4,12(a3);task
move.l d2,8(a3) ;sigmask
moveq #-1,d0
move.l d0,(a3) ;mx
move.l d0,4(a3) ;my
lea MH_INT(a5),a1
move.b #2,8(a1) ;NT_INTERRUPT
move.b #5,9(a1) ;priority
lea mhname(pc),a0
move.l a0,10(a1)
lea mousehackint(pc),a0
move.l a0,18(a1)
move.l a3,14(a1)
moveq #5,d0 ;INTB_VERTB
jsr -$00a8(a6)
bra.s mhloop
.f rts
mhloop
move.l d2,d0
jsr -$013e(a6) ;Wait
move.l MH_IO(a5),a1
lea MH_IEV(a5),a2
move.w #11,28(a1) ;IND_WRITEEVENT
move.l #22,36(a1) ;sizeof(struct InputEvent)
move.l a2,40(a1)
move.b #1,30(a1) ;IOF_QUICK
move.b #4,4(a2) ;IECLASS_POINTERPOS
clr.b 5(a2) ;ie_SubClass
clr.w 6(a2) ;ie_Code
clr.w 8(a2) ;ie_Qualifier
move.l d7,a0 ;intbase
move.l MH_FOO+0(a5),d0
move.w 34+14(a0),d1
add.w d1,d1
sub.w d1,d0
move.w d0,10(a2)
move.l MH_FOO+4(a5),d0
move.w 34+12(a0),d1
add.w d1,d1
sub.w d1,d0
ext.l d0
move.w d0,12(a2)
move.l MH_TM(a5),a1
move.w #10,28(a1) ;TR_GETSYSTIME
move.b #1,30(a1) ;IOF_QUICK
jsr -$01c8(a6) ;DoIO
move.l MH_TM(a5),a1
move.l 32(a1),14(a2)
move.l 36(a1),18(a2)
move.l MH_IO(a5),a1
jsr -$01c8(a6) ;DoIO
bra.w mhloop
mousehackint:
move.w mousehack_x(pc),d0
ext.l d0
move.w mousehack_y(pc),d1
ext.l d1
cmp.l (a1),d0
bne .l1
cmp.l 4(a1),d1
beq .l2
.l1 move.l d1,4(a1)
move.l d0,(a1)
move.l 8(a1),d0
move.l 12(a1),a1
move.l 4.w,a6
jsr -$0144(a6) ; Signal
.l2 lea $dff000,a0
moveq #0,d0
rts
inp_dev: dc.b 'input.device',0
tim_dev: dc.b 'timer.device',0
mhname: dc.b 'UAE mouse hack',0
exter_name: dc.b 'UAE filesystem',0
doslibname: dc.b 'dos.library',0
intlibname: dc.b 'intuition.library',0
explibname: dc.b 'expansion.library',0
fsresname: dc.b 'FileSystem.resource',0
END
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