1/* $NetBSD$ */ 2 3/* 4 * Convert a single byte between (unsigned) packed bcd and binary. 5 * Public domain. 6 */ 7 8#include <sys/cdefs.h> 9__KERNEL_RCSID(0,"$NetBSD$"); 10 11#include <lib/libkern/libkern.h> 12 13unsigned int 14bcdtobin(unsigned int bcd) 15{ 16 17 return (((bcd >> 4) & 0x0f) * 10 + (bcd & 0x0f)); 18} 19 20unsigned int 21bintobcd(unsigned int bin) 22{ 23 24 return ((((bin / 10) << 4) & 0xf0) | (bin % 10)); 25} 26