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- ;************************************************************************
- ;* BIOS-Library, Übergabe in Registern *
- ;* ©1989 by Σ-soft, written by Markus Fritze 18.06.1988 01:59 *
- ;************************************************************************
-
- getmpb: move.l A0,-(SP)
- clr.w -(SP)
- bsr bios
- addq.l #6,SP
- rts
-
- bconstat: move.w D0,-(SP)
- move.w #1,-(SP)
- bsr bios
- addq.l #4,SP
- rts
-
- bconin: move.w D0,-(SP)
- move.w #2,-(SP)
- bsr bios
- addq.l #4,SP
- rts
-
- bconout: move.w D1,-(SP)
- move.w D0,-(SP)
- move.w #3,-(SP)
- bsr bios
- addq.l #6,SP
- rts
-
- rwabs: move.w D0,-(SP)
- move.w D1,-(SP)
- move.w D2,-(SP)
- move.l A0,-(SP)
- move.w D3,-(SP)
- move.w #4,-(SP)
- bsr bios
- lea 14(SP),SP
- rts
-
- setexc: move.l A0,-(SP)
- move.w D0,-(SP)
- move.w #5,-(SP)
- bsr bios
- addq.l #8,SP
- rts
-
- tickcal: move.w #6,-(SP)
- bsr bios
- addq.l #2,SP
- rts
-
- getbpb: move.w D0,-(SP)
- move.w #7,-(SP)
- bsr bios
- addq.l #4,SP
- rts
-
- bcostat: move.w D0,-(SP)
- move.w #8,-(SP)
- bsr bios
- addq.l #4,SP
- rts
-
- mediach: move.w D0,-(SP)
- move.w #9,-(SP)
- bsr bios
- addq.l #4,SP
- rts
-
- drvmap: move.w #$0A,-(SP)
- bsr bios
- addq.l #2,SP
- rts
-
- kbshift: move.w D0,-(SP)
- move.w #$0B,-(SP)
- bsr bios
- addq.l #4,SP
- rts
-
- ;************************************************************************
- ;* Allgemeiner Bios-Einsprung, welcher alle Register rettet (außer D0) *
- ;* ACHTUNG! Sonst könnten die Register D0-D2/A0-A2 zerstört werden *
- ;************************************************************************
- bios: move.l A0,D0
- lea regsave(PC),A0
- movem.l D0-D7/A1-A7,(A0)
- move.l (SP)+,-(A0) ;Rücksprungadr retten
- trap #13
- movea.l D0,A0 ;Fehlermeldung retten
- movem.l regsave(PC),D0-D7/A1-A7
- exg A0,D0
- move.l retsave(PC),(SP)
- rts
-
- retsave: DS.L 1
- regsave: DS.L 15
-