.TH MACH-SWAP 3
.SH NAME
beswap2, beswap4, beswap8, beieeeftoa32, beieeeftoa64, beieeeftoa80,
beload2, beload4, beload8,
leswap2, leswap4, leswap8, leieeeftoa32, leieeeftoa64, leieeeftoa80,
leload2, leload4, leload8, ieeeftoa32, ieeeftoa64 \- machine-independent access to byte-ordered data
.SH SYNOPSIS
.B #include <u.h>
.br
.B #include <libc.h>
.br
.B #include <mach.h>
.PP
.ta \w'\fBu64intxx'u
.B
u16int	beswap2(u16int u)
.br
u32int	beswap4(u32int u)
.br
u64int	beswap8(u64int u)
.PP
.B
int	beieeeftoa32(char *a, uint n, void *f)
.br
int	beieeeftoa64(char *a, uint n, void *f)
.br
int	beieeeftoa80(char *a, uint n, void *f)
.PP
.B
u16int	beload2(uchar *p)
.br
u32int	beload4(uchar *p)
.br
u64int	beload8(uchar *p)
.PP
.B
u16int	leswap2(u16int u)
.br
u32int	leswap4(u32int u)
.br
u64int	leswap8(u64int u)
.PP
.B
int	leieeeftoa32(char *a, uint n, void *f)
.br
int	leieeeftoa64(char *a, uint n, void *f)
.br
int	leieeeftoa80(char *a, uint n, void *f)
.PP
.B
u16int	leload2(uchar *p)
.br
u32int	leload4(uchar *p)
.br
u64int	leload8(uchar *p)
.PP
.B
int	ieeeftoa32(char *a, uint n, u32int u)
.br
int	ieeeftoa64(char *a, uint n, u32int hi, u32int lo)
.SH DESCRIPTION
These functions provide 
machine-independent access to data in a particular byte order.
.PP
.IR Beswap2 ,
.IR beswap4 ,
and
.I beswap8
return the 2-byte, 4-byte, and 8-byte
big-endian representation of the bytes in
.IR val ,
respectively.
.PP
.IR Beload2 ,
.IR beload4 ,
and
.I beload8
return the 2-byte, 4-byte, and 8-byte 
big-endian interpretation of the bytes at
.IR p ,
respectively.
.PP
.IR Beieeeftoa32 ,
.IR beieeeftoa64 ,
and
.I beieeeftoa80
format the big-endian 4-byte, 8-byte, or 10-byte IEEE floating-point value
at
.IR f
into the 
.IR n -byte 
string buffer
.IR a .
.PP
.IR Leswap2 ,
.IR leswap4 ,
etc. are the little-endian equivalents of the routines just described.
.PP
.I Ieeeftoa32
and
.I ieeeftoa64
format a local machine byte-order floating-point value into the 
.IR n -byte
string buffer
.IR a .
.I Ieeeftoa32
expects a 32-bit floating-point value stored in the bits of
.IR u .
.I Ieeeftoa64
expects a 64-bit floating-point value whose high 32-bits are in 
.I hi
and low 32-bits are in
.IR lo .
.SH SOURCE
.B \*9/src/libmach
.SH "SEE ALSO"
.MR mach (3)