26 lines
487 B
C
26 lines
487 B
C
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/* $NetBSD: bcd.c,v 1.1 2006/03/11 15:40:07 kleink Exp $ */
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/*
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* Convert a single byte between (unsigned) packed bcd and binary.
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* Public domain.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0,"$NetBSD: bcd.c,v 1.1 2006/03/11 15:40:07 kleink Exp $");
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#include <lib/libkern/libkern.h>
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unsigned int
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bcdtobin(unsigned int bcd)
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{
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return (((bcd >> 4) & 0x0f) * 10 + (bcd & 0x0f));
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}
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unsigned int
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bintobcd(unsigned int bin)
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{
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return ((((bin / 10) << 4) & 0xf0) | (bin % 10));
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}
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