xref: /csrg-svn/sys/tahoe/align/Affc.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  *	@(#)Affc.c	7.1 (Berkeley) 12/06/90
11*45760Sbostic  */
1229608Ssam 
1345699Sbostic #include "align.h"
ffc(infop)1429608Ssam ffc(infop)	process_info *infop;
1529608Ssam /*
1629608Ssam /*	Find first clear bit.
1729608Ssam /*
1829608Ssam /********************************/
1929608Ssam {
2029608Ssam 
2129608Ssam 	register long	Register_12;	/* Has to be first reg ! */
2229608Ssam 	register long	Register_11;
2329608Ssam 	register long	Register_10;
2429608Ssam 
2529608Ssam 	Register_12 = operand(infop,0)->data;
2629608Ssam 	Register_10=psl;
2729608Ssam 	Set_psl(r10);	/* restore the user psl */
2829608Ssam 	asm ("	ffc	r12,r11");
2929608Ssam 	asm ("	movpsl	r12");
3029608Ssam 	New_cc (Register_12);
3129608Ssam 	write_back (infop,Register_11, operand(infop,1));
3229608Ssam }
33