1 /*- 2 * Copyright (c) 1986 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Computer Consoles Inc. 7 * 8 * %sccs.include.redist.c% 9 * 10 * @(#)Amull3.c 7.1 (Berkeley) 12/06/90 11 */ 12 13 #include "align.h" 14 mull3(infop) process_info *infop; 15 /* 16 /* Multiply longwords, 3 operands. 17 /* 18 /*****************************************/ 19 { 20 register long Register_12; /* Has to be first reg ! */ 21 register long result, data0, data1; 22 23 data0 = operand(infop,0)->data; 24 data1 = operand(infop,1)->data; 25 Register_12=psl; 26 Set_psl(r12); /* restore the user psl */ 27 result = data0 * data1; 28 asm (" movpsl r12"); 29 New_cc (Register_12); 30 write_back (infop,result, operand(infop,2) ); 31 } 32