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 * @(#)Affc.c 7.1 (Berkeley) 12/06/90 11 */ 12 13 #include "align.h" 14 ffc(infop) process_info *infop; 15 /* 16 /* Find first clear bit. 17 /* 18 /********************************/ 19 { 20 21 register long Register_12; /* Has to be first reg ! */ 22 register long Register_11; 23 register long Register_10; 24 25 Register_12 = operand(infop,0)->data; 26 Register_10=psl; 27 Set_psl(r10); /* restore the user psl */ 28 asm (" ffc r12,r11"); 29 asm (" movpsl r12"); 30 New_cc (Register_12); 31 write_back (infop,Register_11, operand(infop,1)); 32 } 33