xref: /csrg-svn/sys/tahoe/align/Atst.c (revision 45760)
1*45760Sbostic /*-
2*45760Sbostic  * Copyright (c) 1986 The Regents of the University of California.
3*45760Sbostic  * All rights reserved.
4*45760Sbostic  *
5*45760Sbostic  * This code is derived from software contributed to Berkeley by
6*45760Sbostic  * Computer Consoles Inc.
7*45760Sbostic  *
8*45760Sbostic  * %sccs.include.redist.c%
9*45760Sbostic  *
10*45760Sbostic  *	@(#)Atst.c	7.1 (Berkeley) 12/06/90
11*45760Sbostic  */
1229640Ssam 
1345699Sbostic #include "align.h"
tst(infop)1429640Ssam tst(infop)	process_info *infop;
1529640Ssam /*
1629640Ssam /*	Test operand, set condition codes.
1729640Ssam /*
1829640Ssam /************************************************/
1929640Ssam {
2029640Ssam 	register long quantity;
2129640Ssam 
2229640Ssam 	quantity = operand(infop,0)->data;
2329640Ssam 	if (quantity < 0) negative_1; else negative_0;
2429640Ssam 	if (quantity == 0) zero_1; else zero_0;
2529640Ssam 	overflow_0; carry_1;
2629640Ssam }
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