xref: /csrg-svn/sys/tahoe/align/Awrite_quad.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  *	@(#)Awrite_quad.c	7.1 (Berkeley) 12/06/90
11*45760Sbostic  */
1229643Ssam 
1345699Sbostic #include	"align.h"
1429643Ssam 
write_quadword(infop,qword,where)1529643Ssam write_quadword (infop, qword, where)
1629643Ssam process_info	*infop;
1729643Ssam quadword 	qword;
1829643Ssam struct oprnd 	*where;
1929643Ssam /*
2029643Ssam /*	Put the quadword at the given address in memory.
2129643Ssam /*
2229643Ssam /*
2329643Ssam /**************************************************/
2429643Ssam {
2529643Ssam 	if (! (where->mode & W)) exception(infop, ILL_ADDRMOD);
2629643Ssam 	switch (where->mode & ADDFIELD)	/* Mask out R/W bits */
2729643Ssam 	{
2829643Ssam 	case Add:
2929643Ssam 		put_longword (infop, qword.high, where->address);
3029643Ssam 		where->address += 4;
3129643Ssam 		put_longword (infop, qword.low, where->address);
3229643Ssam 		break;
3329643Ssam 	case Dir:
3429643Ssam 		if ( where->reg_number >= SPOINTER || (where->reg_number & 1) == 1 )
3529643Ssam 			exception (infop, ILL_OPRND);
3629643Ssam 		Replace (infop, where->reg_number, qword.high);
3729643Ssam 		Replace (infop, where->reg_number+1, qword.low);
3829643Ssam 		break;
3929643Ssam 	case SPmode:
4029643Ssam 		exception(infop, ILL_ADDRMOD);
4129643Ssam 		break;
4229643Ssam 	default:
4329643Ssam 		printf("Unknown destination in write_quad (alignment code)\n");
4429643Ssam 	};
4529643Ssam }
46