mirror of
https://github.com/elliotnunn/sys7.1-doc-wip.git
synced 2024-06-12 14:29:29 +00:00
142 lines
6.1 KiB
Plaintext
142 lines
6.1 KiB
Plaintext
;
|
|
; File: DeskMgrPatches.a
|
|
;
|
|
; Contains: Fixes to the Desk Manager
|
|
;
|
|
; Copyright: © 1990, 1992 by Apple Computer, Inc., all rights reserved.
|
|
;
|
|
; Change History (most recent first):
|
|
;
|
|
; <5> 7/8/92 JSM Add comments about patches that have been rolled in.
|
|
; <4> 2/10/92 JSM Moved this file to DeskMgr folder, keeping all the old
|
|
; revisions.
|
|
; <3> 8/30/90 dba add code for SystemClick heap scramble bug fixes
|
|
; <2> 8/2/90 csd Patch SystemClick to be 32-Bit clean.
|
|
; <1> 7/2/90 stb first checked in
|
|
;
|
|
;
|
|
|
|
load 'StandardEqu.d'
|
|
include 'LinkedPatchMacros.a'
|
|
|
|
|
|
SysEvtAfterFrontWindow ROMBind (Plus, $15C2A), (SE, $10268), (II, $14FE0), (Portable, $15536), (IIci, $1C79C)
|
|
SysEvtDoneSEvt ROMBind (Plus, $15C20), (SE, $1025C), (II, $14FD4), (Portable, $1552C), (IIci, $1C790)
|
|
SystemClickContinue ROMBind (IIci, $1C856)
|
|
CheckDeskHook ROMBind (IIci, $1C8A0)
|
|
SearchWindow ROMBind (Plus, $15C40), (SE, $1027C), (II, $14FF4), (Portable, $15550), (IIci, $1C7B4)
|
|
DoneSClick ROMBind (IIci, $1C894)
|
|
AfterLoadResourceInSystemClick ROMBind (Plus, $15CDC), (SE, $10330), (II, $150A8), (Portable, $15606), (IIci, $1C86A)
|
|
AfterFrontWindowInSystemClick ROMBind (Plus, $15CF8), (SE, $1034C), (II, $150C4), (Portable, $15622), (IIci, $1C886)
|
|
AfterTrackGoAwayInSystemClick ROMBind (Plus, $15D58), (SE, $103AC), (II, $15124), (Portable, $15682), (IIci, $1C8E6)
|
|
|
|
;————————————————————————————————————————————————————————————————————————————————————————————————————
|
|
; SystemEvent — bail out if there is no window up
|
|
|
|
; SystemEvent has a call to FrontWindow before dereferencing the front window's data structure.
|
|
; This is bad if FrontWindow returns nil. This come-from patch to FrontWindow causes SystemEvent
|
|
; to exit immediately with a return value of FALSE if FrontWindow returns nil.
|
|
;
|
|
; This patch has been rolled into DeskMgr.a.
|
|
;
|
|
|
|
SysEvtIgnoreNILFrontWindow ComeFromPatchProc \
|
|
_FrontWindow,SysEvtAfterFrontWindow,(Plus,SE,II,Portable,IIci)
|
|
|
|
addq #4,sp ; pop return address because we know it's always SysEvtAfterFrontWindow
|
|
jsrOld ; go ahead and finish the FrontWindow
|
|
tst.l (sp) ; is there no window up?
|
|
bneROM SysEvtAfterFrontWindow ; there's a window, so we can continue as normal
|
|
|
|
; we don't have a window, so bail out
|
|
addq #4,sp ; pop the windowptr from the FrontWindow call
|
|
jmpROM SysEvtDoneSEvt ; exit through the ROM
|
|
|
|
EndProc
|
|
|
|
;————————————————————————————————————————————————————————————————————————————————————————————————————
|
|
; SystemClick - Make this routine 32-bit clean when it calls the WDEF and fix heap scramble bugs.
|
|
;
|
|
; This patch has been rolled into DeskMgr.a.
|
|
;
|
|
|
|
FixSystemClick PatchProc _SystemClick,(IIci)
|
|
|
|
MOVEM.L D0/D3-D4/A3-A4,-(SP) ;preserve some work registers
|
|
;D0 to reserve space on stack
|
|
MOVE.L SP,-(SP) ;push "savePort"
|
|
_GetPort ;remember the current grafPort on stack
|
|
|
|
MOVE.L 24(SP),A4 ; get theWindow into A4
|
|
MOVE.L WindowDef(A4),A3 ; get the window def proc handle into A3
|
|
MOVE.L 28(SP),D4 ; get theEvent into D4
|
|
|
|
MOVE.L A4,D0 ; test the window ptr
|
|
beqROM CheckDeskHook ; if nil, check the desk hook
|
|
|
|
MOVE.L A4,A0 ;pass in A0
|
|
jsrROM SearchWindow ;find it in the driver list
|
|
bneROM DoneSClick ;if not found, ignore the call
|
|
MOVE.L A0,D3 ;remember DCE handle (formerly remembered the pointer) <3>
|
|
;
|
|
; we found the window in the device table; A1 points to the DCE entry of the driver
|
|
; that owns the window. First see what part of the window its in by calling
|
|
; the window definition proc to classify.
|
|
;
|
|
subq #2, SP ; room for window variant
|
|
move.l A4, -(SP) ; push window pointer
|
|
_GetWVariant ; legally get the window variant
|
|
move.w (SP)+, D0 ; put the var code into D0 for the ROM
|
|
|
|
jmpROM SystemClickContinue ; let the rom do the rest
|
|
|
|
EndProc
|
|
|
|
; The next patch is so that we keep the DCE handle instead of the pointer.
|
|
; Not needed on the IIci because the above patch fixes it for that ROM.
|
|
|
|
RememberDCEHandleInsteadOfPointer ComeFromPatchProc \
|
|
_LoadResource,AfterLoadResourceInSystemClick,(Plus,SE,Portable,II)
|
|
|
|
MOVE.L A4,A0 ;pass in A0
|
|
jsrROM SearchWindow ;find it in the driver list (we know it will be found, we found it before)
|
|
MOVE.L A0,D3 ;remember DCE handle (formerly remembered the pointer) <3>
|
|
jmpOld
|
|
|
|
EndProc
|
|
|
|
; The next patch is so that we get the dCtlRefNum properly when we send a message to the driver.
|
|
;
|
|
; This patch has been rolled into DeskMgr.a.
|
|
;
|
|
|
|
GetDCtlRefNumFromHandleForSendDrvrMsg ComeFromPatchProc \
|
|
_FrontWindow,AfterFrontWindowInSystemClick,(Plus,SE,Portable,II,IIci)
|
|
|
|
move.l d3,a0 ;put DCE handle in an address register to dereference it
|
|
move.l (a0),d3 ;get the DCE pointer now, like the ROM expects
|
|
jmpOld
|
|
|
|
EndProc
|
|
|
|
; The next patch is so that we get the dCtlRefNum properly when close the driver.
|
|
; This can be two different things — either CloseDeskAcc or calling the CloseOrnHook.
|
|
;
|
|
; This patch has been rolled into DeskMgr.a.
|
|
;
|
|
|
|
GetDCtlRefNumFromHandleForClosingDeskAccessory ComeFromPatchProc \
|
|
_TrackGoAway,AfterTrackGoAwayInSystemClick,(Plus,SE,Portable,II,IIci)
|
|
|
|
addq #4,sp ;get rid of the return address in SystemClick
|
|
jsrOld ;call TrackGoAway, and the stack is right
|
|
move.l d3,a0 ;put DCE handle in an address register to dereference it
|
|
move.l (a0),d3 ;get the DCE pointer now, like the ROM expects
|
|
jmpROM AfterTrackGoAwayInSystemClick ; rejoin the ROM, just after the TrackGoAway call
|
|
|
|
EndProc
|
|
|
|
;————————————————————————————————————————————————————————————————————————————————————————————————————
|
|
|
|
End
|