Difference between revisions of "Bit"
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=== band === | === band === | ||
'''Definition:'''<br> | '''Definition:'''<br> | ||
| − | bit.band(w1, | + | bit.band(w1,w2) |
<br><br> | <br><br> | ||
'''Description:''' <br> | '''Description:''' <br> | ||
| Line 13: | Line 13: | ||
<br><br> | <br><br> | ||
'''Example:'''<br> | '''Example:'''<br> | ||
| + | print (bit.band (15, 3)) --> 3 | ||
<br><br> | <br><br> | ||
=== bor === | === bor === | ||
'''Definition:'''<br> | '''Definition:'''<br> | ||
| − | bit.bor(w1, | + | bit.bor(w1,w2) |
<br><br> | <br><br> | ||
'''Description:''' <br> | '''Description:''' <br> | ||
| Line 27: | Line 28: | ||
<br><br> | <br><br> | ||
'''Example:'''<br> | '''Example:'''<br> | ||
| + | print (bit.bor (13, 17)) --> 29 | ||
<br><br> | <br><br> | ||
| Line 41: | Line 43: | ||
<br><br> | <br><br> | ||
'''Example:'''<br> | '''Example:'''<br> | ||
| + | print(bit.bnot(10)) --> 4294967285 | ||
<br><br> | <br><br> | ||
| Line 55: | Line 58: | ||
<br><br> | <br><br> | ||
'''Example:'''<br> | '''Example:'''<br> | ||
| + | print (bit.xor (15, 1)) --> 14 | ||
<br><br> | <br><br> | ||
| Line 69: | Line 73: | ||
<br><br> | <br><br> | ||
'''Example:'''<br> | '''Example:'''<br> | ||
| + | print (bit.brshift (-1024, 6)) --> 4294967285 | ||
<br><br> | <br><br> | ||
| Line 81: | Line 86: | ||
<br><br> | <br><br> | ||
'''Example:'''<br> | '''Example:'''<br> | ||
| + | print (bit.xor (15, 1)) --> 14 | ||
<br><br> | <br><br> | ||
| Line 109: | Line 115: | ||
<br><br> | <br><br> | ||
'''Example:'''<br> | '''Example:'''<br> | ||
| + | print (bit.blshift (4, 6)) --> 256 | ||
<br><br> | <br><br> | ||
| Line 137: | Line 144: | ||
<br><br> | <br><br> | ||
'''Example:'''<br> | '''Example:'''<br> | ||
| + | print (bit.blogic_rshift (144, 1)) --> 72 | ||
<br><br> | <br><br> | ||
Revision as of 14:09, 31 May 2008
Contents
Functions
band
Definition:
bit.band(w1,w2)
Description:
returns the bitwise and of the w's
Arguments:
Returns:
Example:
print (bit.band (15, 3)) --> 3
bor
Definition:
bit.bor(w1,w2)
Description:
returns the bitwise or of the w's
Arguments:
Returns:
Example:
print (bit.bor (13, 17)) --> 29
bnot
Definition:
bit.bnot(a)
Description:
returns the one's complement of a
Arguments:
Returns:
Example:
print(bit.bnot(10)) --> 4294967285
bxor
Definition:
bit.bxor(w1,...)
Description:
returns the bitwise exclusive or of the w's
Arguments:
Returns:
Example:
print (bit.xor (15, 1)) --> 14
brshift
Definition:
bit.rshift(a,b)
Description:
returns a shifted logically right b places
Arguments:
Returns:
Example:
print (bit.brshift (-1024, 6)) --> 4294967285
bxor2
Definition:
Description:
Arguments:
Returns:
Example:
print (bit.xor (15, 1)) --> 14
tonumb
Definition:
bit.tonumb(bit_tbl)
Description:
convert a bit table into a number
Arguments:
Returns:
Example:
blshift
Definition:
bit.lshift(a,b)
Description:
returns a shifted left b places
Arguments:
Returns:
Example:
print (bit.blshift (4, 6)) --> 256
tobits
Definition:
bit.tobits(n)
Description:
convert n into a bit table(which is a 1/0 sequence), high bits first
Arguments:
Returns:
Example:
blogic_rshift
Definition:
bit.blogic_rshift(n, bits)
Description:
logic right shift(zero fill >>>)
Arguments:
Returns:
Example:
print (bit.blogic_rshift (144, 1)) --> 72
