Difference between revisions of "Bit32.arshift"
From GiderosMobile
(Created page with "__NOTOC__ '''Available since:''' Gideros 2022.3<br/> '''Class:''' bit32<br/> === Description === Returns the number x shifted disp bits to the right. The number disp may...") |
m (Text replacement - "<source" to "<syntaxhighlight") |
||
| Line 5: | Line 5: | ||
=== Description === | === Description === | ||
Returns the number x shifted disp bits to the right. The number disp may be any representable integer. Negative displacements shift to the left. | Returns the number x shifted disp bits to the right. The number disp may be any representable integer. Negative displacements shift to the left. | ||
| − | < | + | <syntaxhighlight lang="lua"> |
(number) = bit32.arshift(x,disp) | (number) = bit32.arshift(x,disp) | ||
</source> | </source> | ||
Revision as of 14:26, 13 July 2023
Available since: Gideros 2022.3
Class: bit32
Description
Returns the number x shifted disp bits to the right. The number disp may be any representable integer. Negative displacements shift to the left. <syntaxhighlight lang="lua"> (number) = bit32.arshift(x,disp) </source>
This shift operation is what is called arithmetic shift. Vacant bits on the left are filled with copies of the higher bit of x; vacant bits on the right are filled with zeros. In particular, displacements with absolute values higher than 31 result in zero or 0xFFFFFFFF (all original bits are shifted out)
Parameters
x: (number) the number whose bits shall be shifted
disp: (number) the integer number of bits to shift by
Return values
Returns (number) result
See also
