xref: /original-bsd/sys/tahoe/align/Acmpf2.c (revision 7c3db03c)
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  *	@(#)Acmpf2.c	7.1 (Berkeley) 12/06/90
11  */
12 
13 #include "align.h"
14 cmpf2(infop)	process_info *infop;
15 /*
16 /*	Compare operand 1 with operand2 (float).
17 /*
18 /*************************************************/
19 {
20 	register float	*Register_12;	/* Has to be first reg ! */
21 	register float	*Register_11;
22 	register long	Register_10;
23 
24 	Register_12 = (float *) &operand(infop,0)->data;
25 	Register_11 = (float *) &operand(infop,1)->data;
26 	if ( reserved( *(long *)Register_12 ) ||
27 	     reserved( *(long *)Register_11 ) )
28 			{exception(infop, ILL_OPRND);}
29 
30 	Register_10=psl;
31 	Set_psl(r10);	/* restore the user psl */
32 	asm ("	cmpf2	(r12),(r11)");
33 	asm ("	movpsl	r10");
34 	New_cc (Register_10);
35 }
36