xref: /original-bsd/sys/tahoe/align/Aadd2.c (revision 6fcea464)
1 /*	Aadd2.c	1.1	86/07/20	*/
2 
3 #include "../tahoealign/align.h"
4 add2(infop)	process_info *infop;
5 /*
6 /*	Add , 2 operands.
7 /*
8 /*****************************************/
9 {
10 	register	long	Register_12;	/* Has to be first reg ! */
11 	register 	long	data0, data1, result;
12 
13 	data0 = operand(infop,0)->data;
14 	data1 = operand(infop,1)->data;
15 	Register_12=psl;
16 	Set_psl(r12);	/* restore the user psl */
17 	result = data0 + data1;		/* 32 bits of true result */
18 	asm ("	movpsl	r12");
19 	New_cc (Register_12);
20 	write_back (infop,result, operand(infop,1) );
21 }
22