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64 lines
1.3 KiB
Plaintext
64 lines
1.3 KiB
Plaintext
;
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; File: ROM_EMDispatch.a
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;
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; Contains: xxx put contents here xxx
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;
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; Written by: xxx put writers here xxx
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;
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; Copyright: © 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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; <1> 11/5/92 RB first checked in
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;
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;
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;
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;
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; © Copyright 1991 Apple Computer, Inc. All Rights Reserved.
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; By Ricardo Batista
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;
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; OSDispatch fake routine for boot time use of menus.
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;
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;
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INCLUDE 'Traps.a' ; for debugger trap
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ROM_EM_OSDISPATCH PROC EXPORT
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move.l (sp)+,a0 ; recover return address
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move.w (sp)+,d0 ; get selector number
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cmpi.w #$3E,d0 ; is this from the menu MBDF ?
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beq.s @L4 ; recover 4 longs
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cmpi.w #$1D,d0 ; is this from the MDEF ?
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beq.s @L2 ; recover 2 longs
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cmpi.w #$37,d0 ; is it the sound manager calling ?
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beq.s @SM ; deal with it
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cmpi.w #$3A,d0 ; is it GetProcessInfo ?
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beq.s @L2W
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_Debugger
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@L2W
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adda.l #8,a7 ; recover 2 longs
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move.w #1,(sp) ; set error result
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jmp (a0) ; return to whoever
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@L4
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adda.l #16,a7 ; recover 4 longs
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clr.w (sp) ; set no error (word)
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jmp (a0) ; return to MBDF
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@L2
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adda.l #8,a7 ; recover 2 longs
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clr.l (sp) ; clear result (long pointer)
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jmp (a0) ; return to MDEF
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@SM
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adda.l #4,a7 ; recover one long
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clr.w (sp) ; clear result
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jmp (a0) ; return to sound manager
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ENDPROC
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END |