ref: 1787584ad839002584e0752e4df41b6f3b70064b
dir: /sys/src/libmach/swap.c/
#include <u.h> /* * big-endian short */ ushort beswab(ushort s) { uchar *p; p = (uchar*)&s; return (p[0]<<8) | p[1]; } /* * big-endian long */ ulong beswal(ulong l) { uchar *p; p = (uchar*)&l; return (p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3]; } /* * big-endian vlong */ uvlong beswav(uvlong v) { uchar *p; p = (uchar*)&v; return ((uvlong)p[0]<<56) | ((uvlong)p[1]<<48) | ((uvlong)p[2]<<40) | ((uvlong)p[3]<<32) | ((uvlong)p[4]<<24) | ((uvlong)p[5]<<16) | ((uvlong)p[6]<<8) | (uvlong)p[7]; } /* * little-endian short */ ushort leswab(ushort s) { uchar *p; p = (uchar*)&s; return (p[1]<<8) | p[0]; } /* * little-endian long */ ulong leswal(ulong l) { uchar *p; p = (uchar*)&l; return (p[3]<<24) | (p[2]<<16) | (p[1]<<8) | p[0]; } /* * little-endian vlong */ uvlong leswav(uvlong v) { uchar *p; p = (uchar*)&v; return ((uvlong)p[7]<<56) | ((uvlong)p[6]<<48) | ((uvlong)p[5]<<40) | ((uvlong)p[4]<<32) | ((uvlong)p[3]<<24) | ((uvlong)p[2]<<16) | ((uvlong)p[1]<<8) | (uvlong)p[0]; }