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225 lines
5.7 KiB
Plaintext
225 lines
5.7 KiB
Plaintext
;
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; File: Ovals.a
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;
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; Copyright: © 1981-1992 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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; <SM2> 6/11/92 stb <sm 6/9/92>stb Synch with QDciPatchROM.a, added comment at
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; StdOval.
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; <¥1.4> 5/29/89 BAL Blasting in 32-Bit QuickDraw version 1.0 Final
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; <¥1.3> 4/12/89 BAL Blasting in 32-Bit QuickDraw 1.0B1
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; 1/8/89 BAL Vectorized CheckPic
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; 9/5/86 EHB Added FillCOval
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; 8/16/86 EHB In FillOval, call SetFillPat for color patterns.
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;
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;
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BLANKS ON
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STRING ASIS
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;-----------------------------------------------------------
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;
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;
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; *** * * * * ***
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; * * * * * * * * *
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; * * * * * * * *
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; * * * * * * * ***
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; * * * * ***** * *
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; * * * * * * * * *
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; *** * * * ***** ***
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;
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;
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StdOval PROC EXPORT
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IMPORT PutPicVerb,PutPicRect
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IMPORT PutOval,PushVerb,DrawArc
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;---------------------------------------------------------------
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;
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; PROCEDURE StdOval(verb: GrafVerb; r: Rect);
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;
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; A6 OFFSETS OF PARAMS AFTER LINK:
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;
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; contains _CheckPic fix from QDciPatchROM.a <sm 6/9/92>stb
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PARAMSIZE EQU 6
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VERB EQU PARAMSIZE+8-2 ;GRAFVERB
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RECT EQU VERB-4 ;LONG, ADDR OF RECT
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OVWD EQU -2 ;WORD
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OVHT EQU OVWD-2 ;WORD
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VARSIZE EQU OVHT ;TOTAL BYTES OF LOCALS
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LINK A6,#VARSIZE ;ALLOCATE STACK FRAME
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MOVEM.L D7/A3-A4,-(SP) ;SAVE REGS
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MOVE.B VERB(A6),D7 ;GET VERB
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_CheckPic ;SET UP A4,A3 AND CHECK PICSAVE
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BLE.S NOTPIC ;BRANCH IF NOT PICSAVE
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MOVE.B D7,-(SP)
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bsr.l PutPicVerb ;PUT ADDIONAL PARAMS TO THEPIC
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MOVEQ #$50,D0 ;PUT OVALNOUN IN HI NIBBLE
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ADD D7,D0 ;PUT VERB IN LO NIBBLE
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MOVE.B D0,-(SP) ;PUSH OPCODE
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MOVE.L RECT(A6),-(SP) ;PUSH ADDR OF RECT
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bsr.l PutPicRect ;PUT OPCODE AND RECTANGLE
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NOTPIC PEA StdDraw ;PUSH ADDRESS OF DRAW ROUTINE
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PEA GetRect ;PUSH ADDRESS OF RECT ROUTINE
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_StdDevLoop ;DRAW TO ALL DEVICES
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MOVEM.L (SP)+,D7/A3-A4 ;RESTORE REGS
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UNLINK PARAMSIZE,'STDOVAL '
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;---------------------------------------------------------------
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;
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; PROCEDURE GetRect(VAR theRect: rect);
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;
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; RETURN THE OBJECT'S RECTANGLE
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;
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GetRect MOVE.L (SP)+,D0 ;GET RETURN ADDRESS
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MOVE.L (SP)+,A1 ;GET DST RECT
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MOVE.L RECT(A6),A0 ;GET SRC RECT
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MOVE.L (A0)+,(A1)+ ;SET TOPLEFT
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MOVE.L (A0),(A1) ;SET BOTRIGHT
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MOVE.L D0,A0 ;GET RETURN ADDRESS
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JMP (A0) ;AND RETURN
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;---------------------------------------------------------------
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;
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; PROCEDURE StdDraw;
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;
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; DRAW THE OBJECT
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;
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StdDraw MOVE.L RECT(A6),A0 ;POINT TO RECT
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MOVE RIGHT(A0),D0
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SUB LEFT(A0),D0
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MOVE D0,OVWD(A6) ;OVWD := R.RIGHT - R.LEFT
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MOVE BOTTOM(A0),D0
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SUB TOP(A0),D0
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MOVE D0,OVHT(A6) ;OVHT := R.BOTTOM - R.TOP
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MOVE.L A0,-(SP) ;PUSH ADDR OF RECT
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TST.B D7 ;IS VERB FRAME ?
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BNE.S NOTFR ;NO, CONTINUE
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TST.L RGNSAVE(A3) ;YES, IS RGNSAVE TRUE ?
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BEQ.S NOTRGN ;NO, CONTINUE
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MOVE.L A0,-(SP) ;YES, PUSH ADDR OF RECT
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MOVE.L OVHT(A6),-(SP) ;PUSH OVWD, OVHT
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MOVE.L RGNBUF(A4),-(SP) ;PUSH RGNBUF
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PEA RGNINDEX(A4) ;PUSH VAR RGNINDEX
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PEA RGNMAX(A4) ;PUSH VAR RGNMAX
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_PutOval ;ADD AN OVAL TO THERGN
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NOTRGN MOVE.B #1,-(SP) ;PUSH HOLLOW = TRUE
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BRA.S DOIT
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NOTFR CLR.B -(SP) ;PUSH HOLLOW = FALSE
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DOIT MOVE.L OVHT(A6),-(SP) ;PUSH OVWD,OVHT
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_PushVerb ;PUSH MODE AND PATTERN
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CLR -(SP) ;PUSH STARTANGLE = 0
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MOVE #360,-(SP) ;PUSH ARCANGLE = 360
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; DrawArc(r,hollow,ovWd,ovHt,mode,pat,startAng,arcAng);
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_DrawArc
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DONESD RTS
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FrameOval PROC EXPORT
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EXPORT CallOval,PaintOval,EraseOval,InvertOval,FillOval,FillCOval
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IMPORT SETFILLPAT
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;-----------------------------------------------------
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;
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; PROCEDURE FrameOval(* r: Rect *);
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;
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MOVEQ #FRAME,D0 ;VERB = FRAME
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BRA.S CallOval ;SHARE COMMON CODE
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;-----------------------------------------------------
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;
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; PROCEDURE PaintOval(* r: Rect *);
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;
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PaintOval
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MOVEQ #PAINT,D0 ;VERB = PAINT
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BRA.S CallOval ;SHARE COMMON CODE
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;--------------------------------------------------------
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;
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; PROCEDURE EraseOval(* r: Rect *);
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;
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EraseOval
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MOVEQ #ERASE,D0 ;VERB = ERASE
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BRA.S CallOval ;SHARE COMMON CODE
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;--------------------------------------------------------
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;
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; PROCEDURE InvertOval(* r: Rect *);
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;
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InvertOval
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MOVEQ #INVERT,D0 ;VERB = INVERT
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BRA.S CallOval ;SHARE COMMON CODE
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;--------------------------------------------------------
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;
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; PROCEDURE FillOval(* r: Rect; pat: Pattern *);
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;
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FillOval
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MOVEQ #0,D0 ;FLAG = FILLOVAL
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BRA.S SHARE ; => USE COMMON CODE
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;----------------------------------------------------------
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;
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; PROCEDURE FillCOval(r: Rect; PPH: PixPatHandle);
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;
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FILLCOVAL MOVEQ #1,D0 ;FLAG = FILLCOVAL
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SHARE MOVE.L (SP)+,A0 ;POP RETURN ADDR
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MOVE.L (SP)+,A1 ;POP ADDR OF PATTERN
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MOVE.L A0,-(SP) ;PUT RETURN ADDR BACK
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MOVE.L A1,-(SP) ;PUSH ADDR OF PATTERN
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_SETFILLPAT ;FILLPAT := PAT
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MOVEQ #FILL,D0 ;VERB = FILL
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; BRA.S CallOval ;SHARE COMMON CODE
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;---------------------------------------------------------------
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;
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; PROCEDURE CallOval(r: Rect);
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;
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; code shared by FrameOval, PaintOval, EraseOval, InvertOval, and FillOval.
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; enter with verb in D0.
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;
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CallOval
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MOVE.L (SP)+,A0 ;POP RETURN ADDR
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MOVE.L (SP)+,A1 ;POP ADDR OF RECT
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MOVE.B D0,-(SP) ;PUSH VERB
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MOVE.L A1,-(SP) ;PUSH ADDR OF RECT
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MOVE.L A0,-(SP) ;RESTORE RETURN ADDR
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MOVE.L GRAFGLOBALS(A5),A0 ;POINT TO LISAGRAF GLOBALS
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MOVE.L THEPORT(A0),A0 ;GET CURRENT GRAFPORT
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MOVE.L GRAFPROCS(A0),D0 ;IS GRAFPROCS NIL ?
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MOVE.L JStdOval,A0 ;get piece of trap table
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BEQ.S USESTD ;YES, USE STD PROC
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MOVE.L D0,A0
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MOVE.L OVALPROC(A0),A0 ;NO, GET PROC PTR
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USESTD JMP (A0) ;GO TO IT
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ENDPROC
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