Difference between revisions of "Lua:dwordToByteTable"

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(Created page with ''''function''' dwordToByteTable(''Number'') Converts a DWORD (4 bytes) to a byte table. === Function Parameters === {|width="85%" cellpadding="10%" cellpadding="5%" cellspacing…')
 
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Converts a DWORD (4 bytes) to a byte table.
 
Converts a DWORD (4 bytes) to a byte table.
 
=== Function Parameters ===
 
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i.e.: 0xFFFFFFFF00 : 0xFFFFFF00
 
i.e.: 0xFFFFFFFF00 : 0xFFFFFF00
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Revision as of 05:21, 9 March 2017

function dwordToByteTable(Number)

Converts a DWORD (4 bytes) to a byte table.


Note: If the number is a float only the integer no greater than or no less than the given value will be used.

Same as value from 'math.floor'.

i.e.: 8.1 : 8, 8.9 : 8, -8.1 : -8, -8.9 : -8


Note: If the number is larger than a DWORD (4 bytes) only the lower portion of the number will be used.

i.e.: 0xFFFFFFFF00 : 0xFFFFFF00

Function Parameters

Parameter Type Description
Number number The number to convert to a byte table


Examples

Code:

 local bt = dwordToByteTable(0xFFFFFFFF)
 writeBytes('00123ABC', bt)


Code:

 local bt = dwordToByteTable(10)
 for i, v in ipairs(bt) do
   print(i, string.format('%02X', v))
 end

Output:

 1 0A 
 2 00 
 3 00 
 4 00 


Code:

 local bt = dwordToByteTable(10.9)
 for i, v in ipairs(bt) do
   print(i, string.format('%02X', v))
 end

Output:

 1 0A 
 2 00 
 3 00 
 4 00 


Code:

 local bt = dwordToByteTable(0xFFFFFFFF00)
 for i, v in ipairs(bt) do
   print(i, string.format('%02X', v))
 end

Output:

 1 00 
 2 FF 
 3 FF 
 4 FF 


See also

Related Functions