205 lines
6.8 KiB
Plaintext
205 lines
6.8 KiB
Plaintext
;
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; File: Data.a
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;
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; Contains: Assembly language information truly internal to Process Mgr
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;
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; Written by: David Harrison
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;
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; Copyright: © 1986-1991 by Apple Computer, Inc., all rights reserved.
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;
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; Change History (most recent first):
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;
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; <5> 1/28/91 DFH JSM,#81425:Removed PopUpMenuSelect patch.
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; <3> 12/18/90 DFH Added GetScrap patch.
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; <2> 12/17/90 DFH Removed unused private OSDispatch information. Added xx macro.
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; <0> 10/12/90 DFH New Today.
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;
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;--------------------------------------------------------------------
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IF &TYPE('__IncludingData__') = 'UNDEFINED' THEN
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__IncludingData__ SET 1
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;__________________________________________________________________________________
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; Private equates
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;__________________________________________________________________________________
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; The ignorant masses know this as Twitcher2
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ProcessMgrGlobals EQU $B7C ; lomem pointer to our globals
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; Private OSDispatch dispatcher info
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KERNELLAUNCHID EQU $10 ; selector for _KernelLaunch
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TWGETPRTYPESTRINGSID EQU $27 ; selector for _TWGetPrTypeStrings
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MACRO
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_MFGetPrTypeStrings
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MOVE.W #TWGETPRTYPESTRINGSID,-(SP)
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_OSDispatch
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ENDM
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;__________________________________________________________________________________
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; Handy extra definitions
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;__________________________________________________________________________________
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UNIMP EQU -1 ; lomem value when "unimplemented"
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;__________________________________________________________________________________
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; Assembly language version of the dispatch table we maintain. Each entry contains the
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; original value so we can call through. This definition must stay in synch with the
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; C language "OSDispatchEntry" in data.h.
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;__________________________________________________________________________________
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; OSDispatchTable is made of these
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OSDispatchEntry RECORD 0
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dispatchAddr DS.L 1
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dispatchDepth DS.W 1
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dispatchRetSize DS.W 1
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SizeOfElem EQU *
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ENDR
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;__________________________________________________________________________________
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; Assembly language version of the patch table we maintain. Each entry contains the
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; original value so we can call through. These definitions must stay in synch
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; with the C language "patchtraps" table defined in Data.c and Data.h.
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;__________________________________________________________________________________
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; Trap table entry
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TrapEntry RECORD 0
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trapnum DS.W 1
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traptype DS.W 1
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newtrap DS.L 1
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oldtrap DS.L 1
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ENDR
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; NOTE: Changes here need to also happen to tables in data.h and data.c */
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; First define all traps that are in ROM 78 only
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Rom78PatchTable RECORD 0
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HANDTOHAND DS TrapEntry
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ENDR
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; Now define all ROM 75 traps
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Rom75PatchTable RECORD 0
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ADDRESMENU DS TrapEntry
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CHECKLOAD DS TrapEntry
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CLOSE DS TrapEntry
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DISPOSHANDLE DS TrapEntry
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DRAWMENUBAR DS TrapEntry
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EJECT DS TrapEntry
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EVENTAVAIL DS TrapEntry
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EXITTOSHELL DS TrapEntry
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GETNAMEDRESOURCE DS TrapEntry
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GETNEXTEVENT DS TrapEntry
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GETRESATTRS DS TrapEntry
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GETRESOURCE DS TrapEntry
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GETSCRAP DS TrapEntry
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GETVOL DS TrapEntry
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GETVOLINFO DS TrapEntry
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HANDLEZONE DS TrapEntry
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HFSDISPATCH DS TrapEntry
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INITWINDOWS DS TrapEntry
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LAUNCH DS TrapEntry
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MENUKEY DS TrapEntry
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MENUSELECT DS TrapEntry
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MOUNTVOL DS TrapEntry
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NEWHANDLE DS TrapEntry
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OFFLINE DS TrapEntry
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OPEN DS TrapEntry
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OPENDESKACC DS TrapEntry
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OPENRF DS TrapEntry
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OSDISPATCH DS TrapEntry
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OSRESERVED DS TrapEntry
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PACK3 DS TrapEntry
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POSTEVENT DS TrapEntry
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PUTSCRAP DS TrapEntry
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RDRVRINSTALL DS TrapEntry
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REALLOCHANDLE DS TrapEntry
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RECOVERHANDLE DS TrapEntry
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RELEASERESOURCE DS TrapEntry
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SETCURSOR DS TrapEntry
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SETGROWZONE DS TrapEntry
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SIZERSRC DS TrapEntry
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STILLDOWN DS TrapEntry
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SYSEDIT DS TrapEntry
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SYSERROR DS TrapEntry
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SYSTEMCLICK DS TrapEntry
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SYSTEMEVENT DS TrapEntry
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SYSTEMMENU DS TrapEntry
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SYSTEMTASK DS TrapEntry
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UNMOUNTVOL DS TrapEntry
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UPDATERESFILE DS TrapEntry
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WAITMOUSEUP DS TrapEntry
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WAITNEXTEVENT DS TrapEntry
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WAKEUP DS TrapEntry
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ZEROSCRAP DS TrapEntry
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; SetTrapAddress must be last so we don't use patched version when patching!!
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SETTRAPADDRESS DS TrapEntry
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ENDR
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RomAllPatchTable RECORD 0
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Rom78Patches DS Rom78PatchTable
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Rom75Patches DS Rom75PatchTable
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ENDR
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;__________________________________________________________________________________
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; Context switching. We maintain tables specifying which lomem to switch. Each table
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; entry contains a word length (l) followed by a longword base address (a). Bytes
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; a through a+l-1 are saved and restored across context switches. The length must be
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; contained in the low 14 bits of the length word. The upper two bits hold a descriptor
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; of how the longword is to be interpreted, as follows:
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; 00 Longword is the base address of a data to be switched
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; 10 Longword is the address of a (4 byte) pointer to data to be switched
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; 11 Longword is the address of a (4 byte) handle to data to be switched
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; If the 2 bits specify a pointer or handle address and the low 14 bits specify 0 length
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; then this means the length should be filled in later using a call to _GetPtrSize or
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; _GetHandleSize. The table is terminated by a 0 length word (all 16 bits).
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;
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; There is one table for color machines, and another for non-color machines, since some
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; lomem exists in one but not in the other.
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;
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; NOTE: We currently have no use for the heap block type switching, so the types and the
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; code are conditionalized out to save time and memory.
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;__________________________________________________________________________________
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; values for entryType field
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LTDataAddr EQU $0000 ; baseAddr is plain address
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IF (&TYPE('SWITCH_MEMBLOCKS') <> 'UNDEFINED') THEN
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LTPtrAddr EQU $8000 ; baseAddr is ptr block (not supported)
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LTHdlAddr EQU $C000 ; baseAddr is handle (not supported)
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ENDIF
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LTTabEnd EQU $0000 ; end marker in type + length field
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; max bytes in a range, since length is stored in a word, and we steal the two high bits
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LTMaxLength EQU $3FFF
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; macro to build a table entry
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MACRO
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_LomemTabEntry &entryType, &baseAddr, &length
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; Switch all bytes from &baseAddr to &baseAddr+&length-1
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IF &EVAL(&length) > LTMaxLength THEN
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AERROR &CONCAT('Length must be between 1 and ',&INTTOSTR(LTMaxLength))
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ENDIF
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DC.W &entryType+&length
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DC.L &baseAddr
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ENDM
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; macro to terminate the table
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MACRO
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_LomemTabEnd
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DC.W LTTabEnd
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ENDM
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; Entries not yet in SysAllQk.D, remove when they are redundant...
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MacPgm EQU HpChk
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TrapTble EQU $80
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SwitchSnd EQU $278
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CurLayer EQU $A90
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AfterSaveSP EQU (SaveSP+4)
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SoundGlue EQU $AE8
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LastTGlobal EQU $AFC
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SwitchedBits EQU $B21
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LayerPalette EQU $DCC
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; BlockMove is fast with large chunks, but we can be faster when with smaller ones
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FastBMSize EQU 16
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ENDIF ; __IncludingData__
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