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Rudimentary desk accessory
Cribbed from the "MPW-GM" disk
This commit is contained in:
Elliot Nunn
parent
8d68e8c3a0
commit
c8efb91c62
4
.gitignore
vendored
4
.gitignore
vendored
@ -17,3 +17,7 @@ payload
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packbits
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*.pb
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ServerDA
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ServerDA.idump
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ServerDA.rdump
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18
Makefile
18
Makefile
@ -82,4 +82,22 @@ testchain: ChainLoader.bin FORCE
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ServerDA.bin: ServerDA.a
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vasm-1/vasmm68k_mot -quiet -Fbin -pic -o $@ $<
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ServerDA ServerDA.idump ServerDA.rdump: ServerDA.bin
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touch ServerDA ServerDA.idump
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/bin/echo -n dfilmovr >ServerDA.idump
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echo data "'DRVR'" '(12, "", purgeable) {};' >ServerDA.rdump
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rfx cp ServerDA.bin ServerDA.rdump//DRVR/12
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testda: FORCE ServerDA ServerDA.idump ServerDA.rdump
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rm -rf /tmp/testda; mkdir -p /tmp/testda/Desktop\ Folder; cp ServerDA ServerDA.idump ServerDA.rdump /tmp/testda/Desktop\ Folder/
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MakeHFS -s 400k -n TestDA -d now -i /tmp/testda /tmp/testda.dsk
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rsync Big.dsk /tmp/Big.dsk
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Mini\ vMac\ Classic.app/Co*/Ma*/* /tmp/Big.dsk /tmp/testda.dsk
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FORCE:
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262
ServerDA.a
Normal file
262
ServerDA.a
Normal file
@ -0,0 +1,262 @@
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***************************************************************************
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****
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**** MEMORY DESK ACCESSORY - A sample DA written in MPW 68000 Assembly
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****
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**** Copyright Apple Computer, Inc. 1985-1987, 1993, 1998
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**** All rights reserved.
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****
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***************************************************************************
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; Desk accessories (drivers) cannot use global variables in the normal sense.
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; Usually, a handle is allocated and stuffed into dCtlStorage and global
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; variables are stored in this handle. However, in this example, the globals
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; are allocated at the end of the desk accessory's window record. Since the
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; window record is always nonrelocatable storage, the variables will never move.
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; This record structure below defines the layout of our "global variables."
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**************************** DESK ACCESSORY ENTRY **************************
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DAEntry ; See Device Manager IM:2
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DC.B $24 ; (1<<dCtlEnable) + (1<<dNeedTime) ; periodic,control flags set
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DC.B 0 ; Lower byte is unused
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DC.W 5*60 ; 5 sec periodic update
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DC.W $40 ; (1<<updateEvt) ; Handle only update events
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DC.W 0 ; No menu for this accessory
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DC.W DAOpen-DAEntry ; Open routine
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DC.W DADone-DAEntry ; Prime - unused
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DC.W DACtl-DAEntry ; Control
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DC.W DADone-DAEntry ; Status - unused
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DC.W DAClose-DAEntry ; Close
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DATitle
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DC.B 17, 'Free Mem (#Bytes)' ; DA Name (& Window Title)
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ALIGN 2 ; Word align
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************************ DESK ACCESSORY OPEN ROUTINE ***********************
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DAOpen
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MOVEM.L A1-A4,-(SP) ; preserve A1-A4
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MOVE.L A1,A4 ; MOVE DCE pointer to a reg
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SUBQ.L #4,SP ; FUNCTION = GrafPtr
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MOVE.L SP,-(SP) ; push a pointer to it
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DC.W $A874 ; _GetPort ; push it on top of stack
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TST.L $1E(A4) ; DCtlEntry.dCtlWindow do we have a window?
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BNE.S StdReturn ; If so, return, Else
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******************************* NEW WINDOW ROUTINE *************************
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MOVE.L #156,D0 ; WindowRecord size
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DC.W $A11E ; _NewPtr ; allocate space for record
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SUBQ #4,SP ; FUNCTION = WindowRef
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MOVE.L A0,-(SP) ; address of storage
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PEA theWindow ; boundsRect
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PEA DATitle ; title
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CLR.W -(SP) ; visible flag FALSE
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MOVE.W #16,-(SP) ; window proc = rDocProc, 16px rounding
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MOVE.L #-1,-(SP) ; window in front
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MOVE.B #1,-(SP) ; goAway box TRUE
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CLR.L -(SP) ; refCon is 0
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DC.W $A913 ; __NewWindow
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MOVE.L (SP)+,A0
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MOVE.L A0,$1E(A4) ; DCtlEntry.DCtlWindow save windowPtr
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MOVE.W $18(A4),$6C(A0) ; DCtlEntry.DCtlRefNum system window
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DC.W $A11D ; __MaxMem
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StdReturn
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DC.W $A873 ; __SetPort ; old port on stack
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MOVEM.L (SP)+,A1-A4 ; restore regs
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************************ DESK ACCESSORY DONE ROUTINE ***********************
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DADone
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MOVEQ #0,D0 ; return no error
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RTS ; all done, exit
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************************ DESK ACCESSORY CLOSE ROUTINE **********************
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DAClose
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MOVEM.L A1-A4,-(SP) ; preserve A1-A4
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MOVE.L A1,A4 ; MOVE DCE ptr to A4
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SUBQ.L #4,SP ; FUNCTION = GrafPtr
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MOVE.L SP,-(SP) ; push a pointer to it
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DC.W $A874 ; __GetPort ; get it, now it's on TOS
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MOVE.L $1E(A4),-(SP) ; DCtlEntry.DCtlWindow push the window
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DC.W $A914 ; __DisposeWindow ; dispose of the window
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CLR.L $1E(A4) ; DCtlEntry.DCtlWindow mark DCE properly
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BRA.S StdReturn ; all done with close, exit
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********************** DESK ACCESSORY CONTROL ROUTINE **********************
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DACtl
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MOVE.L A4,-(SP) ; preserve reg
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MOVE.L A1,A4 ; move DCE ptr to A4
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MOVE.W $1A(A0),D0 ; get the control opCode
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SUB.W #64,D0 ; = 64? (event)
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BEQ.S DoCtlEvent
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SUB.W #1,D0 ; = 65? (periodic)
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BEQ.S DoPeriodic
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CtlDone
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MOVE.L A4,A1 ; put DCE ptr back in A1
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MOVE.L (SP)+,A4 ; restore reg
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MOVEQ #0,D0 ; return no error
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MOVE.L $8FC,-(SP) ; jump to IODone
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RTS
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************************** EVENT HANDLING ROUTINE **************************
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DoCtlEvent
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MOVE.L A3,-(SP) ; save reg
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MOVE.L $1C(A0),A3 ; CntrlParam.CSParamget the event pointer
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MOVE.W 0(A3),D0 ; EventRecord.what get the event number
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SUBQ #6,D0 ; updateEvt is it an update?
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BNE.S CtlEvtDone ; If not, exit
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MOVE.L 2(A3),-(SP) ; EventRecord.message push windowPtr
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DC.W $A922 ; __BeginUpdate ; begin the update operation
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MOVE.L 2(A3),-(SP) ; EventRecord.message push windowPtr again
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DC.W $A873 ; __SetPort
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BSR.S DrawWindow ; draw our items
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MOVE.L 2(A3),-(SP) ; EventRecord.message one more time
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DC.W $A923 ; __EndUpdate ; end of update
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CtlEvtDone
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MOVE.L (SP)+,A3 ; restore reg
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BRA.S CtlDone ; exit
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**************************** PERIODIC ROUTINE *****************************
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DoPeriodic
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MOVE.L $1E(A4),-(SP) ; DCtlEntry.DCtlWindow set the port
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DC.W $A873 ; __SetPort
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BSR.S DrawWindow ; draw our window every 5s
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BRA.S CtlDone
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****************************** FONT METRICS *******************************
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DrawWindow
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MOVE.W #0,-(SP) ; SrcCopy source mode
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DC.W $A889 ; __TextMode
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MOVE.W #4,-(SP) ; Monaco Monaco
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DC.W $A887 ; __TextFont
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MOVE.W #9,-(SP) ; 9 point
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DC.W $A88A ; __TextSize
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MOVE.W #1,-(SP) ; bold
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DC.W $A888 ; __TextFace
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********************** WRITE APPLICATION HEAP FREEMEM *********************
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MOVE.W #6,-(SP)
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MOVE.W #10,-(SP)
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DC.W $A893 ; __MoveTo
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PEA s1 ; #'AppHeap: '
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DC.W $A884 ; __DrawString
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DC.W $A01C ; __FreeMem ; free memory -> D0
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JSR PrintNum ; draw our free mem
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************************* WRITE SYSTEM HEAP FREEMEM ***********************
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PEA s2 ; #' SysHeap: '
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DC.W $A884 ; __DrawString
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DC.W $A41C ; __FreeMem SYS ; free memory -> D0
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JSR PrintNum ; draw our free sys mem
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***************************** WRITELN VOL INFO ****************************
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PEA s3 ; #' Disk: '
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DC.W $A884 ; __DrawString
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MOVE.L #122,D0 ; HVolumeParam.sizeof size of HFS ParamBlock
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DC.W $A31E ; __NewPtr CLEAR ; NewPtr -> A0
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BNE.S Exit ; IF Error THEN Exit
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MOVE.L A0,D7 ; save PBPtr in D7
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MOVE.L $1A(A4),A1 ; DCtlEntry.DCtlWindow get window rec pointer
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LEA aString,A1 ; address of string buffer
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MOVE.L A1,$12(A0) ; ioNamePtr = Volume Name
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DC.W $A207 ; __PBHGetVInfoSync ; _GetVolInfo info -> A0^
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MOVE.L D7,A0
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MOVE.L $30(A0),D1 ; HVolumeParam.ioVAlBlkSiz block size in D1
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MOVE.W $3E(A0),D2 ; HVolumeParam.ioVFrBlk free blocks in D2
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MOVE.W D1,D0 ; 32 bit * 16 bit multiply
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MULU.W D2,D0 ; right half of size
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SWAP D1
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MOVE.W D1,D3
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MULU.W D2,D3 ; left half of size
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SWAP D3
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ADD.L D3,D0 ; total bytes free on vol
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JSR PrintNum ; write # bytes free
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PEA s4 ; #' free on '
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DC.W $A884 ; __DrawString
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MOVE.W #4,-(SP) ; underlined
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DC.W $A888 ; __TextFace
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MOVE.L D7,A0
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MOVE.L $12(A0),-(SP) ; HVolumeParam.ioNamePtr offset for volName
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DC.W $A884 ; __DrawString
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MOVE.L D7,A0 ; free the memory
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DC.W $A01F ; __DisposePtr
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Exit
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RTS
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***************************** SUBROUTINES ****************************
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PrintNum
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; Binary integer to be drawn at CurPenPos in D0 on entry
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; number drawn in plain text, bolding restored afterwords
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MOVE.L D0,D6 ; for safe keeping
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CLR.W -(SP) ; plain text
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DC.W $A888 ; __TextFace
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MOVE.L D6,D0 ; and back again
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MOVE.L $1A(A4),A0 ; DCtlEntry.DCtlWindow get window rec pointer
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LEA aNumStr,A0 ; get buffer address
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move.w #$0000,-(sp)
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dc.w $A9EE ; __NumToString ; Binary-Decimal Package
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MOVE.L A0,-(SP) ; push the pointer to the str
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DC.W $A884 ; __DrawString
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MOVE.W #1,-(SP) ; bold text restored
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DC.W $A888 ; __TextFace
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RTS
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******************************* DATA AREA **********************************
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s1 dc.b 9, 'AppHeap: '
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s2 dc.b 11, ' SysHeap: '
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s3 dc.b 8, ' Disk: ', 0
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s4 dc.b 9, ' free on '
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theWindow DC.W 322,10,338,500 ; window top,left,bottom,right
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; Desk accessories (drivers) cannot use global variables in the normal sense.
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; Usually, a handle is allocated and stuffed into dCtlStorage and global
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; variables are stored in this handle. However, in this example, the globals
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; are allocated at the end of the desk accessory's window record. Since the
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; window record is always nonrelocatable storage, the variables will never move.
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; This record structure below defines the layout of our "global variables."
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;GlobalVars RECORD WindowRecord.sizeof ; Put variables at end of window rec
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aString DCB.B 28 ; vol names must be < 28 char
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aNumStr DCB.B 10 ; sufficient for 10 GB of space
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;GlobalSize EQU *-GlobalVars ; size of my globals
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; ENDR
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