xref: /original-bsd/sys/tahoe/align/Axor2.c (revision 6d57652c)
1 /*-
2  * Copyright (c) 1986 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Computer Consoles Inc.
7  *
8  * %sccs.include.redist.c%
9  *
10  *	@(#)Axor2.c	7.1 (Berkeley) 12/06/90
11  */
12 
13 #include "align.h"
14 xor2(infop) 	process_info *infop;
15 /*
16 /*	Xor , 2 operands.
17 /*
18 /****************************************/
19 {
20 	register	long	Register_12;	/* Has to be first reg ! */
21 	register	long	result, data0, data1;
22 
23 	data0 = operand(infop,0)->data;
24 	data1 = operand(infop,1)->data;
25 	Register_12=psl;
26 	Set_psl(r12);	/* restore the user psl */
27 	result = data0 ^ data1;
28 	asm ("	movpsl	r12");
29 	New_cc (Register_12);
30 	write_back (infop,result, operand(infop,1) );
31 }
32