xref: /csrg-svn/sys/tahoe/align/Axor2.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  *	@(#)Axor2.c	7.1 (Berkeley) 12/06/90
11*45760Sbostic  */
1229645Ssam 
1345699Sbostic #include "align.h"
xor2(infop)1429645Ssam xor2(infop) 	process_info *infop;
1529645Ssam /*
1629645Ssam /*	Xor , 2 operands.
1729645Ssam /*
1829645Ssam /****************************************/
1929645Ssam {
2029645Ssam 	register	long	Register_12;	/* Has to be first reg ! */
2129645Ssam 	register	long	result, data0, data1;
2229645Ssam 
2329645Ssam 	data0 = operand(infop,0)->data;
2429645Ssam 	data1 = operand(infop,1)->data;
2529645Ssam 	Register_12=psl;
2629645Ssam 	Set_psl(r12);	/* restore the user psl */
2729645Ssam 	result = data0 ^ data1;
2829645Ssam 	asm ("	movpsl	r12");
2929645Ssam 	New_cc (Register_12);
3029645Ssam 	write_back (infop,result, operand(infop,1) );
3129645Ssam }
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