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 * @(#)Aput_byte.c 7.1 (Berkeley) 12/06/90 11 */ 12 13 #include "align.h" 14 15 put_byte (infop, byte, where) 16 process_info *infop; 17 char *where; 18 long byte; 19 /* 20 /* Put the byte at the given address in memory. 21 /* Caveat: It's quite difficult to find a pte reference 22 /* fault. So I took the easy way out and just signal 23 /* an illegal access. 24 /* 25 /**************************************************/ 26 { 27 register long code; 28 29 code = writeable(infop, where, 1); 30 if ( code == TRUE ) { 31 *where = byte; 32 } else exception (infop, ILL_ACCESS, where, code); 33 } 34