xref: /original-bsd/sys/tahoe/align/Amull2.c (revision 1db732ef)
1 /*	Amull2.c	1.1	86/07/20	*/
2 
3 #include "../tahoealign/align.h"
4 int	zzz1,zzz2,zzz3,zzz4,zzz5;
5 mull2(infop)	process_info *infop;
6 /*
7 /*	Multiply longwords, 2 operands.
8 /*
9 /*****************************************/
10 {
11 	register	long	Register_12;	/* Has to be first reg ! */
12 	register	long	result, data0, data1;
13 
14 	data0 = operand(infop,0)->data;
15 	data1 = operand(infop,1)->data;
16 	Register_12=psl;
17 	Set_psl(r12);	/* restore the user psl */
18 	result = data0 * data1;
19 	asm("movpsl	r12");
20 	New_cc (Register_12);
21 	write_back (infop,result, operand(infop,1) );
22 }
23