Lua:qwordToByteTable

function qwordToByteTable(Number) : table

Converts a QWORD (8 bytes) to a byte table, interpreting it as an integer.

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 QWORD (8 bytes) only the lower portion of the number will be used.

 i.e.: 0xFFFFFFFFFFFFFFFF00 : 0xFFFFFFFFFFFFFF00
         8 7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0

Function Parameters

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

Examples

 local bt = qwordToByteTable(0xFFFFFFFFFFFFFFFF)
                             --7 6 5 4 3 2 1 0
 writeBytes('00123ABC', bt)

Code:

 local bt = qwordToByteTable(10)
 for i, v in ipairs(bt) do
   print(i - 1, string.format('%02X', v))
 end

Output:

 0 0A 
 1 00 
 2 00 
 3 00 
 4 00 
 5 00 
 6 00 
 7 00 

Code:

 local bt = qwordToByteTable(10.9)
 for i, v in ipairs(bt) do
   print(i - 1, string.format('%02X', v))
 end

Output:

 0 0A 
 1 00 
 2 00 
 3 00 
 4 00 
 5 00 
 6 00 
 7 00 

Code:

 local bt = qwordToByteTable(0xFFFFFFFFFFFFFFFFFF00)
                             --8 7 6 5 4 4 3 2 1 0
 for i, v in ipairs(bt) do
   print(i - 1, string.format('%02X', v))
 end

Output:

 0 00 
 1 FF 
 2 FF 
 3 FF 
 4 FF 
 5 FF 
 6 FF 
 7 FF 

See also

• Lua
• Script engine

Related Functions

• readBytes
• readSmallInteger
• readInteger
• readQword
• readPointer
• readFloat
• readDouble
• readString
• writeBytes
• writeSmallInteger
• writeInteger
• writeQword
• writeFloat
• writeDouble
• writeString
• readBytesLocal
• readIntegerLocal
• readQwordLocal
• readPointerLocal
• readFloatLocal
• readDoubleLocal
• readStringLocal
• writeBytesLocal
• writeIntegerLocal
• writeQwordLocal
• writeFloatLocal
• writeDoubleLocal
• writeStringLocal
• wordToByteTable
• dwordToByteTable
• qwordToByteTable
• floatToByteTable
• doubleToByteTable
• stringToByteTable
• wideStringToByteTable
• byteTableToWord
• byteTableToDword
• byteTableToQword
• byteTableToFloat
• byteTableToDouble
• byteTableToString
• byteTableToWideString