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- ; This source file is part of the LynxLib miscellaneous library by
- ; Robert Fischer, and is Copyright 1990 by Robert Fischer. It costs no
- ; money, and you may not make money off of it, but you may redistribute
- ; it. It comes with ABSOLUTELY NO WARRANTY. See the file LYNXLIB.DOC
- ; for more details.
- ; To contact the author:
- ; Robert Fischer \\80 Killdeer Rd \\Hamden, CT 06517 USA
- ; (203) 288-9599 fischer-robert@cs.yale.edu
-
- ; unjar.c: Clear cookie pointer on warm boot
-
- ; Installs a new reset handler which clears _p_cookies on warm boots,
- ; for TOS ROMs which don't do that themselves. This procedure must be
- ; executed in Supervisor mode. Reshand itself will run in Supervisor
- ; mode, too.
-
- .include "atari.s"
-
- RESMAGIC equ $31415926
-
- _unjar::
- Super
- move.l resvalid, valsave
- move.l resvector, vecsave
- move.l #reshand, resvector
- move.l #RESMAGIC, resvalid
- User
- rts
-
- .data
- dc.b "XBRAUJAR"
- .bss
- vecsave: ds.l 1
- .text
- reshand: ; This gets run in supervisor mode
- clr.l p_cookies
- move.l vecsave, resvector
- move.l valsave, resvalid
- jmp (a6)
-
- .bss
- valsave: ds.l 1
-