80 lines
1.0 KiB
C
80 lines
1.0 KiB
C
#include <u.h>
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/*
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* big-endian short
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*/
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ushort
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beswab(ushort s)
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{
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uchar *p;
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p = (uchar*)&s;
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return (p[0]<<8) | p[1];
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}
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/*
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* big-endian long
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*/
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ulong
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beswal(ulong l)
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{
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uchar *p;
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p = (uchar*)&l;
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return (p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3];
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}
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/*
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* big-endian vlong
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*/
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uvlong
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beswav(uvlong v)
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{
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uchar *p;
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p = (uchar*)&v;
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return ((uvlong)p[0]<<56) | ((uvlong)p[1]<<48) | ((uvlong)p[2]<<40)
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| ((uvlong)p[3]<<32) | ((uvlong)p[4]<<24)
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| ((uvlong)p[5]<<16) | ((uvlong)p[6]<<8)
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| (uvlong)p[7];
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}
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/*
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* little-endian short
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*/
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ushort
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leswab(ushort s)
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{
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uchar *p;
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p = (uchar*)&s;
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return (p[1]<<8) | p[0];
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}
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/*
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* little-endian long
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*/
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ulong
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leswal(ulong l)
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{
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uchar *p;
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p = (uchar*)&l;
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return (p[3]<<24) | (p[2]<<16) | (p[1]<<8) | p[0];
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}
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/*
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* little-endian vlong
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*/
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uvlong
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leswav(uvlong v)
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{
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uchar *p;
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p = (uchar*)&v;
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return ((uvlong)p[7]<<56) | ((uvlong)p[6]<<48) | ((uvlong)p[5]<<40)
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| ((uvlong)p[4]<<32) | ((uvlong)p[3]<<24)
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| ((uvlong)p[2]<<16) | ((uvlong)p[1]<<8)
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| (uvlong)p[0];
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}
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