Difference between revisions of "Lua:qwordToByteTable"

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[[Category:Lua]]
 
[[Category:Lua]]
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'''function''' qwordToByteTable(''Number'') ''':''' table
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'''function''' qwordToByteTable(''Number'') ''':''' Table
  
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Converts a QWORD (8 bytes) to a byte table, interpreting it as an integer.
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Converts a 64-bit qword (integer) to a table of bytes.
  
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===Function Parameters===
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Note: If the number is a float only the integer no greater than or no less than the given value will be used.
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Same as value from 'math.floor'.
 
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  i.e.: 8.1 : 8, 8.9 : 8, -8.1 : -8, -8.9 : -8
 
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Note: If the number is larger than a QWORD (8 bytes) only the lower portion of the number will be used.
 
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  i.e.: 0xFFFFFFFFFFFFFFFF00 : 0xFFFFFFFFFFFFFF00
 
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          8 7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0
 
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=== Function Parameters ===
 
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!align="left"|Parameter
 
!align="left"|Parameter
 
!align="left"|Type
 
!align="left"|Type
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|-
 
|-
 
|Number
 
|Number
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|number
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|Integer
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|The number to convert to a byte table
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|The 64-bit qword to convert.
 
|}
 
|}
  
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===Returns===
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Table — A table containing the bytes representing the qword.
  
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== Examples ==
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===Examples===
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  local bt = qwordToByteTable(0xFFFFFFFFFFFFFFFF)
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<pre>
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                              --7 6 5 4 3 2 1 0
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local bytes = qwordToByteTable(0x1122334455667788)
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  writeBytes('00123ABC', bt)
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for i, b in ipairs(bytes) do
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  print(string.format("Byte %d: %02X", i, b))
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end
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Code:
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-- Output: Byte 1: 88, Byte 2: 77, ..., Byte 8: 11 (little-endian order)
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  local bt = qwordToByteTable(10)
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</pre>
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  for i, v in ipairs(bt) do
 
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    print(i - 1, string.format('%02X', v))
 
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  end
 
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Output:
 
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  0 0A
 
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  1 00
 
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  2 00
 
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  3 00
 
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  4 00
 
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  5 00
 
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  6 00
 
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  7 00
 
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Code:
 
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  local bt = qwordToByteTable(10.9)
 
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  for i, v in ipairs(bt) do
 
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    print(i - 1, string.format('%02X', v))
 
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  end
 
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Output:
 
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  0 0A
 
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  1 00
 
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  2 00
 
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  3 00
 
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  4 00
 
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  5 00
 
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  6 00
 
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  7 00
 
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Code:
 
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  local bt = qwordToByteTable(0xFFFFFFFFFFFFFFFFFF00)
 
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                              --8 7 6 5 4 4 3 2 1 0
 
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  for i, v in ipairs(bt) do
 
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    print(i - 1, string.format('%02X', v))
 
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  end
 
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Output:
 
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  0 00
 
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  1 FF
 
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  2 FF
 
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  3 FF
 
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  4 FF
 
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  5 FF
 
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  6 FF
 
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  7 FF
 
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{{LuaSeeAlso}}
 
{{LuaSeeAlso}}

Revision as of 17:25, 11 July 2025

function qwordToByteTable(Number) : Table

Converts a 64-bit qword (integer) to a table of bytes.

Function Parameters

Parameter Type Description
Number Integer The 64-bit qword to convert.

Returns

Table — A table containing the bytes representing the qword.

Examples

local bytes = qwordToByteTable(0x1122334455667788)
for i, b in ipairs(bytes) do
  print(string.format("Byte %d: %02X", i, b))
end
-- Output: Byte 1: 88, Byte 2: 77, ..., Byte 8: 11 (little-endian order)

See also

Related Functions



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