567 lines
11 KiB
ArmAsm
567 lines
11 KiB
ArmAsm
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;Startup and cleanup routines
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section text,code
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xref JumpTable
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xref AllocRequest
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xref AllocMemClear
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xref CreatePort
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xref DeletePort
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xref StrFree
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xref CloseIscr
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xref CloseIwin
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xref CloseWBIwin
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xdef CustomError
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xdef DataBase
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xdef Startup
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xdef CloseAll
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xdef Quit
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include "offsets.i"
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include "defs.i"
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include "macros.i"
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include "macros2.i"
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ifd CREATOR
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incdir "/AMOS1.3"
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else
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incdir "/AMOS"
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endc
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; include "equ.s" ;PhxAss is buggy...
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VblRout equ 0
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ExtAdr equ 62*4
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Sys_MyTask equ $2F0
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;Final exit routine from intuition.s, error routine, and pointers to base
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;of data area.
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FinalExit dc.l 0
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CustomError dc.l 0
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DataBasePtr dc.l 0 ;Address of extension's DataBase
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DataBase dc.l 0 ;Our own copy
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;Data initialisation constants
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IntID equ 'IE'<<16+DataVer
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i_flStackSize equ 32768
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i_strings:
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i_DiskfontName dc.b "diskfont.library",0
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i_DOSName dc.b "dos.library",0
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i_GfxName dc.b "graphics.library",0
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i_IntuitionName dc.b "intuition.library",0
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i_ReqToolsName dc.b "reqtools.library",0
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i_ConsoleName dc.b "console.device",0
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i_DefReqTitleStr dc.b "AMOS Request",0
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i_PortName dc.b "AMOS IDCMP",0
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n_strings equ 8
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;Warning message data.
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nosig_txt dc.b "Intuition.lib: warning: No VBL signals available. "
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dc.b "Some commands may not work properly.",13,10
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nosig_len equ *-nosig_txt
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novbl_txt dc.b "Intuition.lib: warning: No room for VBL routine. "
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dc.b "Some commands may not work properly.",13,10
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novbl_len equ *-novbl_txt
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nomem_txt dc.b "Intuition.lib: Out of memory! (code 1)",13,10
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nomem_len equ *-nomem_txt
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nomem_ke_txt dc.b "Intuition.lib: Out of memory! (code 2)",13,10
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nomem_ke_len equ *-nomem_ke_txt
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nomem_ue_txt dc.b "Intuition.lib: Out of memory! (code 4)",13,10
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nomem_ue_len equ *-nomem_ue_txt
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nomem_stk_txt dc.b "Intuition.lib: Out of memory! (code 5)",13,10
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nomem_stk_len equ *-nomem_stk_txt
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nodos_txt dc.b "Intuition.lib: Can't open dos.library!",13,10
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nodos_len equ *-nodos_txt
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nogfx_txt dc.b "Intuition.lib: Can't open graphics.library!",13,10
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nogfx_len equ *-nogfx_txt
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noint_txt dc.b "Intuition.lib: Can't open intuition.library!",13,10
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noint_len equ *-noint_txt
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nodf_txt dc.b "Intuition.lib: Can't open diskfont.library!",13,10
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nodf_len equ *-nodf_txt
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nocon_txt dc.b "Intuition.lib: Can't open console.device!",13,10
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nocon_len equ *-nocon_txt
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nort_txt dc.b "Intuition.lib: warning: Can't open "
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dc.b "reqtools.library v38. Some commands may not work "
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dc.b "properly.",13,10
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nort_len equ *-nort_txt
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noport_txt dc.b "Intuition.lib: Can't create message port!",13,10
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noport_len equ *-noport_txt
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ds.w 0
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;Write an error to stdout if possible. Text in A0, length in D0.
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OutError:
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movem.l d2-d3/a6,-(a7)
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move.l a0,d2
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move.l d0,d3
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lea .dosname(pc),a1
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moveq #0,d0
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move.l 4,a6
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call OpenLibrary
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tst.l d0
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beq .no_lib
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move.l d0,a6
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call Output
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move.l d0,d1
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beq .no_out
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call Write
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.no_out move.l a6,a1
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move.l 4,a6
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call CloseLibrary
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.no_lib movem.l (a7)+,d2-d3/a6
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rts
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.dosname:
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dc.b "dos.library",0
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ds.w 0
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;Set up all the stuff we need. On entry, D1 should point to final exit
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;routine (to UnLoadSeg() this code), D0 should point to custom error
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;routine (the one which calls L_ErrorExt), and A1 should contain the
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;address of the DataBase variable.
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Startup:
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lea FinalExit(pc),a0
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move.l d1,(a0)
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lea CustomError(pc),a0
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move.l d0,(a0)
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lea DataBasePtr(pc),a0
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move.l a1,(a0)
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movem.l a4/a6,-(a7)
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move.l #datalength,d0 ;Allocate memory for data
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move.l #MEMF_PUBLIC,d1
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bsr AllocMemClear
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move.l DataBasePtr(pc),a0
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move.l d0,(a0)
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bne .okdata
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lea nomem_txt(pc),a0
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moveq #nomem_len,d0
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moveq #-1,d0
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movem.l (a7)+,a4/a6
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rts
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.okdata lea DataBase(pc),a0
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move.l d0,(a0)
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move.l d0,a4 ;Initialise data area as necessary
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lea JumpTable(pc),a0
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tmove.l a0,IntJumpTable
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sub.l a1,a1
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syscall FindTask
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tmove.l d0,MyTask
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tmove.w #1,String1
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lea i_strings(pc),a0
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dlea data_strings,a1
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moveq #n_strings-1,d0
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.strlp move.l a0,(a1)+
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.strlp2 tst.b (a0)+
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bne .strlp2
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dbra d0,.strlp
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tmove.l #i_flStackSize,flStackSize
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tmove.w #-1,LastMenu
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tmove.w #-1,LastMenuItem
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tmove.w #-1,LastMenuSub
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tmove.b #-1,Initialised ;Well, not quite yet... but close enough :-)
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tmove.l a5,SavedA5
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move.l a4,ExtAdr+(ExtNum-1)*16(a5)
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lea CloseAll(pc),a0
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move.l a0,ExtAdr+(ExtNum-1)*16+4(a5)
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lea Quit(pc),a0
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move.l a0,ExtAdr+(ExtNum-1)*16+8(a5)
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clr.l ExtAdr+(ExtNum-1)*16+12(a5)
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dlea A7StackEnd,a0
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tmove.l a0,A7StackPtr
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move.l 4,a6
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cmp.b #60,$212(a6) ;SysBase->VBlankFrequency
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seq d0
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tmove.b d0,IsNTSC
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move.w 20(a6),d1 ;SysBase->lib_Version
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cmp.w #36,d1
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scc d0
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tmove.b d0,WB20
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moveq #-1,d0 ;Get a VBL signal bit
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call AllocSignal
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tmove.b d0,VBLSignal
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bpl .sigok ;Did we get it?
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lea nosig_txt(pc),a0 ;No - warn the user on stdout and continue
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moveq #nosig_len,d0 ;with setup
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bsr OutError
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bra .getdos
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.sigok lea VblRout(a5),a0 ;Find an empty VBL handler
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moveq #7,d0 ;8 handlers available, minus 1 for DBRA
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.vbl_lp tst.l (a0)
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beq .gotvbl
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addq.l #4,a0
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dbra d0,.vbl_lp
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lea novbl_txt(pc),a0 ;No VBL handler available
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moveq #novbl_len,d0
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bsr OutError
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moveq #0,d0
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dmove.b VBLSignal,d0
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call FreeSignal
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tmove.b #-1,VBLSignal
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bra .getdos
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.gotvbl lea VBLHandler(pc),a1 ;Got the handler!
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move.l a1,(a0)
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.getdos dmove.l DOSName,a1
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moveq #0,d0
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call OpenLibrary
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tmove.l d0,DOSBase
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bne .gotdos
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lea nodos_txt(pc),a0
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move.l #nodos_len,d0
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bsr OutError
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bra .nodos
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.gotdos dmove.l IntuitionName,a1
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moveq #0,d0
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call OpenLibrary
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tmove.l d0,IntuitionBase
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bne .gotint
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lea noint_txt(pc),a0
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move.l #noint_len,d0
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bsr OutError
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bra .nodos
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.gotint move.l d0,a6
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call ViewAddress ;Get ViewLord address
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move.l d0,a0
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tmove.l d0,ViewLord
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cmp.w #36,20(a6) ;IntuitionBase->lib_Version
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bcs .wb13wh
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moveq #-1,d0
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tmove.w d0,MaxDispWidth
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tmove.w d0,MaxDispHeight
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bra .getgfx
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.wb13wh move.w #449,d0
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sub.w v_DxOffset(a0),d0
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tmove.w d0,MaxDispWidth
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moveq #0,d0
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dtst.w IsNTSC
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seq d0
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and.b #56,d0
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add.w #255,d0
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sub.w v_DyOffset(a0),d0
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tmove.w d0,MaxDispHeight
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.getgfx move.l 4,a6
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dmove.l GfxName,a1
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moveq #0,d0
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call OpenLibrary
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tmove.l d0,GfxBase
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bne .gotgfx
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lea nogfx_txt(pc),a0
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move.l #nogfx_len,d0
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bsr OutError
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bra .nogfx
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.gotgfx dmove.l DiskfontName,a1
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moveq #0,d0
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call OpenLibrary
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tmove.l d0,DiskfontBase
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bne .gotdf
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lea nodf_txt(pc),a0
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move.l #nodf_len,d0
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bsr OutError
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bra .nodf
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.gotdf dmove.l ConsoleName,a0
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moveq #-1,d0
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dlea ConsoleRequest,a2
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move.l a2,a1
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moveq #0,d1
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call OpenDevice
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tst.l d0
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beq .gotcon
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lea nocon_txt(pc),a0
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move.l #nocon_len,d0
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bsr OutError
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bra .nocdev
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.gotcon tmove.l io_Device(a2),ConsoleDevice
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dmove.l ReqToolsName,a1
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moveq #38,d0
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call OpenLibrary
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tmove.l d0,ReqToolsBase
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bne .gotrt
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lea nort_txt(pc),a0
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move.l #nort_len,d0
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bsr OutError
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bra .nort0
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.gotrt moveq #RT_FILEREQ,d0
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bsr AllocRequest
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tmove.l d0,FileReq
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beq .nortfi
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moveq #RT_FONTREQ,d0
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bsr AllocRequest
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tmove.l d0,FontReq
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beq .nortfo
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dtst.b WB20 ;Screen mode requester, GfxBase.ChipRevBits0
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beq .bufini ; only available on 2.0+
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moveq #RT_SCREENMODEREQ,d0
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bsr AllocRequest
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tmove.l d0,ScreenModeReq
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beq .nortsc
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.nort0 dmove.l GfxBase,a0
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moveq #GFXF_HR_AGNUS|GFXF_HR_DENISE,d1
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move.b d1,d0
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and.b gb_ChipRevBits0(a0),d0
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cmp.b d0,d1 ;Need both ECS chips for an ECS system
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seq d0
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tmove.b d0,IsECS
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or.b #GFXF_AA_ALICE|GFXF_AA_LISA,d1
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move.b d1,d0
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and.b gb_ChipRevBits0(a0),d0
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cmp.b d0,d1
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seq d0
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tmove.b d0,IsAGA
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.bufini move.l #KeyBufSize,d0
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move.l d0,d2
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moveq #MEMF_PUBLIC,d1
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call AllocMem
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tmove.l d0,KeyBuffer
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bne .got_ke
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lea nomem_ke_txt(pc),a0
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move.l #nomem_ke_len,d0
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bsr OutError
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bra .no_ke
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.got_ke tmove.l d0,KeyBufPtr
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tmove.l d0,KeyBufNext
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add.l d2,d0
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tmove.l d0,KeyBufEnd
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move.l #MenuBufSize,d0
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move.l d0,d2
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moveq #MEMF_PUBLIC,d1
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call AllocMem
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tmove.l d0,MenuBuffer
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bne .got_ue
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lea nomem_ue_txt(pc),a0
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move.l #nomem_ue_len,d0
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bsr OutError
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bra .no_ue
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|
|
.got_ue tmove.l d0,MenuBufPtr
|
||
|
|
tmove.l d0,MenuBufNext
|
||
|
|
add.l d2,d0
|
||
|
|
tmove.l d0,MenuBufEnd
|
||
|
|
|
||
|
|
dmove.l flStackSize,d0
|
||
|
|
moveq #MEMF_PUBLIC,d1
|
||
|
|
call AllocMem
|
||
|
|
tmove.l d0,flStack
|
||
|
|
bne .gotstk
|
||
|
|
lea nomem_stk_txt(pc),a0
|
||
|
|
move.l #nomem_stk_len,d0
|
||
|
|
bsr OutError
|
||
|
|
bra .nostk
|
||
|
|
.gotstk add.l #1024,d0
|
||
|
|
tmove.l d0,flStackWarn
|
||
|
|
|
||
|
|
dmove.l DefReqTitleStr,a0
|
||
|
|
tmove.l a0,DefReqTitle
|
||
|
|
|
||
|
|
moveq #0,d0
|
||
|
|
dmove.l PortName,a0
|
||
|
|
bsr CreatePort
|
||
|
|
tmove.l d0,MyUserPort
|
||
|
|
bne .gotprt
|
||
|
|
lea noport_txt(pc),a0
|
||
|
|
move.l #noport_len,d0
|
||
|
|
bsr OutError
|
||
|
|
bra .noport
|
||
|
|
|
||
|
|
.gotprt moveq #ExtNum-1,d0 ;Successfully initialised!
|
||
|
|
bra .exit
|
||
|
|
|
||
|
|
.noport dmove.l flStack,a1
|
||
|
|
dmove.l flStackSize,d0
|
||
|
|
call FreeMem
|
||
|
|
.nostk move.l #MenuBufSize,d0
|
||
|
|
dmove.l MenuBuffer,a1
|
||
|
|
call FreeMem
|
||
|
|
.no_ue move.l #KeyBufSize,d0
|
||
|
|
dmove.l KeyBuffer,a1
|
||
|
|
call FreeMem
|
||
|
|
.no_ke dtst.l ReqToolsBase
|
||
|
|
beq .nort
|
||
|
|
dtst.b WB20
|
||
|
|
beq .nortsc
|
||
|
|
dmove.l ScreenModeReq,a1
|
||
|
|
rtcall2 rtFreeRequest
|
||
|
|
.nortsc dmove.l FontReq,a1
|
||
|
|
rtcall2 rtFreeRequest
|
||
|
|
.nortfo dmove.l FileReq,a1
|
||
|
|
rtcall2 rtFreeRequest
|
||
|
|
move.l 4,a6
|
||
|
|
.nortfi dmove.l ReqToolsBase,d0
|
||
|
|
beq .nort
|
||
|
|
move.l d0,a1
|
||
|
|
call CloseLibrary
|
||
|
|
.nort dlea ConsoleRequest,a1
|
||
|
|
call CloseDevice
|
||
|
|
.nocdev dmove.l DiskfontBase,a1
|
||
|
|
call CloseLibrary
|
||
|
|
.nodf dmove.l GfxBase,a1
|
||
|
|
call CloseLibrary
|
||
|
|
.nogfx dmove.l IntuitionBase,a1
|
||
|
|
call CloseLibrary
|
||
|
|
.noint dmove.l DOSBase,a1
|
||
|
|
call CloseLibrary
|
||
|
|
.nodos move.l DataBase(pc),a1 ;free data area
|
||
|
|
move.l #datalength,d0
|
||
|
|
call FreeMem
|
||
|
|
clr.l ExtAdr+ExtNum*16+8(a5) ;don't try to clean up
|
||
|
|
moveq #-1,d0
|
||
|
|
.exit movem.l (a7)+,a4/a6
|
||
|
|
rts
|
||
|
|
|
||
|
|
CloseAll:
|
||
|
|
movem.l a4/a6,-(a7)
|
||
|
|
dinit a4
|
||
|
|
tmove.b #-1,InReset
|
||
|
|
move.l a5,-(a7)
|
||
|
|
|
||
|
|
.scrlp dmove.l FirstIscreen,a2
|
||
|
|
move.l a2,d0
|
||
|
|
beq .scdone
|
||
|
|
move.l sc_UserData(a2),a1
|
||
|
|
move.l se_FirstIwindow(a1),a0
|
||
|
|
.winlp move.l a0,d0
|
||
|
|
beq .close
|
||
|
|
move.l wd_UserData(a0),a1
|
||
|
|
move.l we_NextIwin(a1),a5
|
||
|
|
bsr CloseIwin
|
||
|
|
move.l a5,a0
|
||
|
|
bra .winlp
|
||
|
|
.close move.l a2,a0
|
||
|
|
bsr CloseIscr
|
||
|
|
bra .scrlp
|
||
|
|
|
||
|
|
.scdone
|
||
|
|
.wblp dmove.l FirstWBIwindow,a0
|
||
|
|
move.l a0,d0
|
||
|
|
beq .wbdone
|
||
|
|
bsr CloseWBIwin
|
||
|
|
bra .wblp
|
||
|
|
|
||
|
|
.wbdone
|
||
|
|
.strlp dmove.l FirstString,d2
|
||
|
|
tst.l d2
|
||
|
|
beq .stdone
|
||
|
|
move.l d2,a0
|
||
|
|
lea 12(a0),a0
|
||
|
|
bsr StrFree
|
||
|
|
bra .strlp
|
||
|
|
|
||
|
|
;The screen/window pointers had better be null now...
|
||
|
|
|
||
|
|
.stdone dmove.l KeyBufPtr,a0
|
||
|
|
tmove.l a0,KeyBufNext
|
||
|
|
dmove.l MenuBufPtr,a0
|
||
|
|
tmove.l a0,MenuBufNext
|
||
|
|
dclr.l LastError
|
||
|
|
dclr.l LastErrorStr
|
||
|
|
dclr.b TrapErrors
|
||
|
|
dclr.b ErrorTrapped
|
||
|
|
dlea DefReqTitleStr,a0
|
||
|
|
tmove.l a0,DefReqTitle
|
||
|
|
moveq #-1,d0
|
||
|
|
tmove.w d0,LastMenu
|
||
|
|
tmove.w d0,LastMenuItem
|
||
|
|
tmove.w d0,LastMenuSub
|
||
|
|
|
||
|
|
move.l (a7)+,a5
|
||
|
|
dclr.b InReset
|
||
|
|
movem.l (a7)+,a4/a6
|
||
|
|
rts
|
||
|
|
|
||
|
|
Quit:
|
||
|
|
movem.l a4/a6,-(a7)
|
||
|
|
dinit a4
|
||
|
|
tmove.b #-1,Quitting
|
||
|
|
bsr CloseAll
|
||
|
|
dmove.l MyUserPort,a0
|
||
|
|
bsr DeletePort
|
||
|
|
dmove.l flStack,d0
|
||
|
|
beq .nostk
|
||
|
|
move.l d0,a1
|
||
|
|
dmove.l flStackSize,d0
|
||
|
|
syscall FreeMem
|
||
|
|
.nostk move.l #MenuBufSize,d0
|
||
|
|
dmove.l MenuBuffer,a1
|
||
|
|
call FreeMem
|
||
|
|
move.l #KeyBufSize,d0
|
||
|
|
dmove.l KeyBuffer,a1
|
||
|
|
call FreeMem
|
||
|
|
dtst.l ReqToolsBase
|
||
|
|
beq .nort
|
||
|
|
dmove.l ReqToolsBase,a6
|
||
|
|
dmove.l ScreenModeReq,d0
|
||
|
|
beq .nortsc
|
||
|
|
move.l d0,a1
|
||
|
|
call rtFreeRequest
|
||
|
|
.nortsc dmove.l FontReq,a1
|
||
|
|
call rtFreeRequest
|
||
|
|
dmove.l FRFileList0,d0
|
||
|
|
beq .nofl
|
||
|
|
move.l d0,a0
|
||
|
|
call rtFreeFileList
|
||
|
|
.nofl dmove.l FileReq,a1
|
||
|
|
call rtFreeRequest
|
||
|
|
move.l a6,a1
|
||
|
|
move.l 4,a6
|
||
|
|
call CloseLibrary
|
||
|
|
.nort dlea ConsoleRequest,a1
|
||
|
|
call CloseDevice
|
||
|
|
dmove.l GfxBase,a1
|
||
|
|
call CloseLibrary
|
||
|
|
dmove.l DOSBase,a1
|
||
|
|
call CloseLibrary
|
||
|
|
dmove.l IntuitionBase,a1
|
||
|
|
call CloseLibrary
|
||
|
|
moveq #0,d0
|
||
|
|
dmove.b VBLSignal,d0
|
||
|
|
bmi .nosig
|
||
|
|
call FreeSignal
|
||
|
|
.nosig move.l a4,a1
|
||
|
|
move.l #datalength,d0
|
||
|
|
call FreeMem
|
||
|
|
.exit movem.l (a7)+,a4/a6
|
||
|
|
move.l FinalExit(pc),a0
|
||
|
|
jmp (a0)
|
||
|
|
|
||
|
|
|
||
|
|
;The VBL handler - sends AMOS a signal at each VBL.
|
||
|
|
VBLHandler:
|
||
|
|
move.l a6,-(a7)
|
||
|
|
dinit2 a0
|
||
|
|
amove.l MyTask,a1,a0
|
||
|
|
moveq #0,d1
|
||
|
|
amove.b VBLSignal,d1,a0
|
||
|
|
moveq #1,d0
|
||
|
|
lsl.l d1,d0
|
||
|
|
syscall Signal
|
||
|
|
move.l (a7)+,a6
|
||
|
|
rts
|