103 lines
1.7 KiB
Plaintext
103 lines
1.7 KiB
Plaintext
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#
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#include "em_abs.h"
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/*
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* (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
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*
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* This product is part of the Amsterdam Compiler Kit.
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*
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* Permission to use, sell, duplicate or disclose this software must be
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* obtained in writing. Requests for such permissions may be sent to
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*
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* Dr. Andrew S. Tanenbaum
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* Wiskundig Seminarium
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* Vrije Universiteit
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* Postbox 7161
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* 1007 MC Amsterdam
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* The Netherlands
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*
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*/
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/* Author: E.G. Keizer */
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mes 2,_EM_WSIZE,_EM_PSIZE
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exa environ
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exa _end
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exa _penvp
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_penvp
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bss _EM_PSIZE,0,0
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exp $m_a_i_n
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pro $m_a_i_n,0
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loc 1336 ; EIOVFL | EIUND | ECONV | EFOVFL | EFUNFL
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sim ; ignored
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lal _EM_WSIZE+_EM_PSIZE
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loi _EM_PSIZE
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lae _penvp
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sti _EM_PSIZE
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/* Now test if environ is our own environ, or some user defined environ.
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* First test if environ < _end. This is done for separate I&D systems.
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*/
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lae environ
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lae _end
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cmp
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zge *1
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/* Now environ < end, which means that we can derefence it without trouble
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* on separate I&D systems.
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*/
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lae environ
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loi 2
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loc 2
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loc _EM_WSIZE
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cii
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loc 21331 /* == 0x5353 */
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bne *1
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/* environ contains the magic value. Assume it's our own environ */
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lae _envp
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loi _EM_PSIZE
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lae environ
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sti _EM_PSIZE
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1
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#if unix && ! (em22 || em24 || em44)
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lpi $_ctch_
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sig
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asp _EM_PSIZE
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#endif
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lal _EM_WSIZE+_EM_PSIZE
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loi _EM_PSIZE
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lal _EM_WSIZE
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loi _EM_PSIZE
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lal 0
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loi _EM_WSIZE
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cal $main
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asp _EM_WSIZE+_EM_PSIZE+_EM_PSIZE
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lfr _EM_WSIZE
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cal $exit
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end
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#if unix && ! (em22 || em24 || em44)
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exp $_ctch_
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pro $_ctch_,0
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lol 0
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loc EIDIVZ
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beq *1
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lol 0
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loc EFDIVZ
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beq *1
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lol 0
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trp
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bra *3
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1
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loc 8
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cal $_getpid
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lfr _EM_WSIZE
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cal $_kill
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asp 2*_EM_WSIZE
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3
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lpi $_ctch_
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sig
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asp _EM_PSIZE
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rtt
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end 0
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#endif
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