mirror of
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179 lines
3.7 KiB
Plaintext
179 lines
3.7 KiB
Plaintext
;EASE$$$ READ ONLY COPY of file “QUICKGLUE.m.a”
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; 1.1 CCH 11/11/1988 Fixed Header.
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; 1.0 CCH 11/ 9/1988 Adding to EASE.
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; OLD REVISIONS BELOW
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; 1.0 BBM 2/11/88 Adding file for the first time into EASE…
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; END EASE MODIFICATION HISTORY
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; File: QuickGlue.TEXT
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;------------------------------------------------------------------
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;
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; QuickDraw/Mac OS Interface
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;
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; written by Andy Hertzfeld 16-Sept-82
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;
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; (c) 1982 by Apple Computer, Inc. All rights reserved.
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;
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; QuickGlue is the QuickDraw/Mac OS interface. It is linked with QuickDraw and
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; defines all of the externals required by QuickDraw except those of the
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; font manager. All of these are very short and simple (memory manager traps or
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; jumps through the graphics jump table).
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;
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; Modification History
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;
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; 16-Nov-82 AJH Made font manager interface go through graphics jump table
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; 09-Feb-83 AJH Added LockHandle, UnLockHandle
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; 17-Aug-83 SC Made all cursor jumps preserve A0
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; 22-Apr-85 LAK Removed RInitGraf (coordinated with Bill clearing
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; QDExist flag in InitGraf).
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;------------------------------------------------------------------
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LOAD 'SysTlQk.D'
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BLANKS ON
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STRING ASIS
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;; INCLUDE 'GrafTypes.Text'
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; INCLUDE 'QuickEQU.a'
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; INCLUDE 'SYSERR.a'
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; INCLUDE 'SysEqu.a'
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; INCLUDE 'SysTraps.a'
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; INCLUDE 'ToolEqu.a'
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; INCLUDE 'ToolTraps.a'
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;
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; Here is a subset of Unit Storage (the ones needed by
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; QuickDraw), implemented by trapping to the Mac OS.
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;
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JHideCursor EQU $800
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JShowCursor EQU $804
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JShieldCursor EQU $808
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JScrnAddr EQU $80C
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JScrnSize EQU $810
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JInitCrsr EQU $814
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JSetCrsr EQU $818
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JCrsrObscure EQU $80C
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JUpdateProc EQU $820
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JSwapFont EQU $8E0
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;
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; FUNCTION NewHandle(byteCount: INTEGER): Ptr;
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;
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NewHandle FUNC EXPORT
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;
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MOVEQ #0,D0 ;clear out high part
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MOVE.L (SP)+,A1 ;get return address
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MOVE.W (SP)+,D0 ;get the byte count
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_NEWHANDLE ;ask OS to do request
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BNE.S MemFull ;if memory full, deep shit!
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MOVE.L A0,(SP) ;return result handle on stack
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JMP (A1) ;return to caller
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; handle the memory full error by deep-shitting
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MemFull
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MOVEQ #DSMemFullErr,D0
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_SysError
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DC.W $A9FF ;invoke debugger just in case it comes back
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;
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; PROCEDURE SetSize(h: Handle; newSize: INTEGER);
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;
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EXPORT SetSize
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;
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SetSize
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MOVEQ #0,D0 ;clear out high part
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MOVE.L (SP)+,A1 ;get return address
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MOVE.W (SP)+,D0 ;get the new size
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MOVE.L (SP)+,A0 ;get the handle
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_SETHANDLESIZE ;let OS do it
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BNE.S MemFull ;if out of memory, deepShit
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JMP (A1) ;return to caller
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;
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; PROCEDURE DisposeHandle(h: Handle);
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;
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DisposeHandle PROC EXPORT
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;
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MOVE.L (SP)+,A1 ;get return address
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MOVE.L (SP)+,A0 ;get parameter
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_DISPOSHANDLE ;let OS do work
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JMP (A1) ;return to caller
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;
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; PROCEDURE LockHandle(h: Handle);
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;
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LockHandle PROC EXPORT
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MOVE.L 4(SP),A0
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BSET #7,(A0)
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MOVE.L (SP)+,(SP)
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RTS
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;
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; PROCEDURE UnLockHandle(h: handle);
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;
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UnlockHandle PROC EXPORT
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MOVE.L 4(SP),A0
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BCLR #7,(A0)
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MOVE.L (SP)+,(SP)
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RTS
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;
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; Following is the QuickDraw cursor interface, implemented by accessing
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; system routines through the graphics jump table
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;
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CursorDisplay PROC EXPORT
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;
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MOVE.L JShowCursor,-(SP)
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RTS
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;
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CursorHide PROC EXPORT
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;
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MOVE.L JHideCursor,-(SP)
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RTS
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;
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CursorImage PROC EXPORT
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;
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MOVE.L JSetCrsr,-(SP)
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RTS
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;
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CursorInit PROC EXPORT
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;
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MOVE.L JInitCrsr,-(SP)
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RTS
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;
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CursorObscure PROC EXPORT
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;
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MOVE.L JCrsrObscure,-(SP)
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RTS
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;
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CursorShield PROC EXPORT
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;
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MOVE.L JShieldCursor,-(SP)
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RTS
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;
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ScreenAdress PROC EXPORT
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;
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MOVE.L JScrnAddr,-(SP)
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RTS
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;
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ScreenSize PROC EXPORT
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;
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MOVE.L JScrnSize,-(SP)
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RTS
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;
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FMSwapFont PROC EXPORT
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MOVE.L JSwapFont,-(SP)
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RTS
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END
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