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#ifndef lint
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static const char RCSid[] = "$Id$";
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#endif
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/*
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* Byte swapping routines
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*
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* External symbols declared in rtio.h
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*/
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#include "copyright.h"
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#include "rtio.h"
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void
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swap16( /* swap n 16-bit words */
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register char *wp,
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int n
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)
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{
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register int t;
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while (n-- > 0) {
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t = wp[0]; wp[0] = wp[1]; wp[1] = t;
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wp += 2;
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}
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}
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void
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swap32( /* swap n 32-bit words */
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register char *wp,
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int n
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)
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{
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register int t;
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while (n-- > 0) {
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t = wp[0]; wp[0] = wp[3]; wp[3] = t;
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t = wp[1]; wp[1] = wp[2]; wp[2] = t;
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wp += 4;
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}
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}
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void
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swap64( /* swap n 64-bit words */
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register char *wp,
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int n
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)
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{
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register int t;
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while (n-- > 0) {
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t = wp[0]; wp[0] = wp[7]; wp[7] = t;
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t = wp[1]; wp[1] = wp[6]; wp[6] = t;
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t = wp[2]; wp[2] = wp[5]; wp[5] = t;
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t = wp[3]; wp[3] = wp[4]; wp[4] = t;
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wp += 8;
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}
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}
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