xref: /csrg-svn/sys/tahoe/align/Aadd3.c (revision 29584)
1*29584Ssam /*	Aadd3.c	1.1	86/07/20	*/
2*29584Ssam 
3*29584Ssam #include "../tahoealign/align.h"
4*29584Ssam add3(infop)	process_info *infop;
5*29584Ssam /*
6*29584Ssam /*	Add , 3 operands.
7*29584Ssam /*
8*29584Ssam /*****************************************/
9*29584Ssam {
10*29584Ssam 
11*29584Ssam 	register	long	Register_12;	/* Has to be first reg ! */
12*29584Ssam 	register 	long	data0, data1, result;
13*29584Ssam 
14*29584Ssam 	data0 = operand(infop,0)->data;
15*29584Ssam 	data1 = operand(infop,1)->data;
16*29584Ssam 	Register_12=psl;
17*29584Ssam 	Set_psl(r12);	/* restore the user psl */
18*29584Ssam 	result = data0 + data1;		/* 32 bits of true result */
19*29584Ssam 	asm ("	movpsl	r12");
20*29584Ssam 	New_cc (Register_12);
21*29584Ssam 	write_back (infop,result, operand(infop,2) );
22*29584Ssam }
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