mvbits man page on SunOS
[printable version]
MVBITS(3F) MVBITS(3F)
NAME
mvbits - move specified bits
SYNOPSIS
subroutine mvbits (src, ini1, nbits, des, ini2 )
integer*4 src, ini1, nbits, des, ini2
DESCRIPTION
This routine moves bits from src, starting with bit ini1, number of
bits moved nbits, to des, starting with bit ini2.
NOTES
Usage:
INTEGER*4 src, ini1, nbits, des, ini2
...
CALL mvbits(src, ini1, nbits, des, ini2)
Restrictions:
ini1 + nbits ≤ 32
ini2 + nbits ≤ 32
Example:
demo% cat mvb1.f
* mvb1.f <-- From src, initial bit 0, move 3 bits to
* des initial bit 3
* src des
* 543210 543210 <-- Bit numbers (VMS convention)
* 000111 000001 <-- Values before move
* 000111 111001 <-- Values after move
INTEGER*4 src, ini1, nbits, des, ini2
DATA src, ini1, nbits, des, ini2
& / 7, 0, 3, 1, 3 /
CALL mvbits ( src, ini1, nbits, des, ini2 )
WRITE (*,"(5O3)") src, ini1, nbits, des, ini2
END
demo% f77 -silent mvb1.f
demo% a.out
7 0 3 71 3
demo%
FILES
libfui.a
SEE ALSO
FORTRAN 77 Reference Manual
07 July 1995 MVBITS(3F)
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