Difference between revisions of "Lua:wordToByteTable"

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'''function''' wordToByteTable(''Number'')
+
[[Category:Lua]]
 +
'''function''' wordToByteTable(''Number'') ''':''' table
 +
 
 +
Converts a WORD (2 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 WORD (2 bytes) only the lower portion of the number will be used.
 +
 
 +
  i.e.: 0xFFFF00 : 0xFF00
 +
          2 1 0      1 0
  
−
Converts a WORD (2 bytes) to a byte table.
 
  
 
===Function Parameters===
 
===Function Parameters===
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|The number to convert to a byte table
 
|The number to convert 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 WORD (2 bytes) only the lower portion of the number will be used.
 
−
 
−
i.e.: 0xFFFF00 : 0xFF00
 
  
  
Line 31: Line 34:
 
Code:
 
Code:
 
   local bt = wordToByteTable(0xFFFF)
 
   local bt = wordToByteTable(0xFFFF)
 +
                            --1 0
 
   writeBytes('00123ABC', bt)
 
   writeBytes('00123ABC', bt)
  
  
 
Code:
 
Code:
−
   local bt = wordToByteTable(8)
+
   local bt = wordToByteTable(10)
 
   for i, v in ipairs(bt) do
 
   for i, v in ipairs(bt) do
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     print(i, string.format('%02X', v))
+
     print(i - 1, string.format('%02X', v))
 
   end
 
   end
  
 
Output:
 
Output:
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   1 08
+
   0 0A
−
   2 00  
+
   1 00  
  
  
 
Code:
 
Code:
−
   local bt = wordToByteTable(8.9)
+
   local bt = wordToByteTable(10.9)
 
   for i, v in ipairs(bt) do
 
   for i, v in ipairs(bt) do
−
     print(i, string.format('%02X', v))
+
     print(i - 1, string.format('%02X', v))
 
   end
 
   end
  
 
Output:
 
Output:
−
   1 08
+
   0 0A
−
   2 00  
+
   1 00  
  
  
 
Code:
 
Code:
 
   local bt = wordToByteTable(0xFFFF00)
 
   local bt = wordToByteTable(0xFFFF00)
 +
                            --2 1 0
 
   for i, v in ipairs(bt) do
 
   for i, v in ipairs(bt) do
−
     print(i, string.format('%02X', v))
+
     print(i - 1, string.format('%02X', v))
 
   end
 
   end
  
 
Output:
 
Output:
−
   1 00  
+
   0 00  
−
   2 FF  
+
   1 FF  
  
  
−
== See also ==
+
{{LuaSeeAlso}}
−
* [[Lua]]
 
−
* [[Help_File:Script engine|Script engine]]
 
  
 
=== Related Functions ===
 
=== Related Functions ===
−
* [[readBytes]]
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{{ReadWriteMemory}}
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* [[readInteger]]
 
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* [[readQword]]
 
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* [[readPointer]]
 
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* [[readFloat]]
 
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* [[readDouble]]
 
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* [[readString]]
 
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* [[writeBytes]]
 
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* [[writeInteger]]
 
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* [[writeQword]]
 
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* [[writeFloat]]
 
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* [[writeDouble]]
 
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* [[writeString]]
 
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* [[readBytesLocal]]
 
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* [[readIntegerLocal]]
 
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* [[readQwordLocal]]
 
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* [[readPointerLocal]]
 
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* [[readFloatLocal]]
 
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* [[readDoubleLocal]]
 
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* [[readStringLocal]]
 
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* [[writeBytesLocal]]
 
−
* [[writeIntegerLocal]]
 
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* [[writeQwordLocal]]
 
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* [[writeFloatLocal]]
 
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* [[writeDoubleLocal]]
 
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* [[writeStringLocal]]
 
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* [[dwordToByteTable]]
 
−
* [[qwordToByteTable]]
 
−
* [[floatToByteTable]]
 
−
* [[doubleToByteTable]]
 
−
* [[stringToByteTable]]
 
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* [[wideStringToByteTable]]
 
−
* [[byteTableToWord]]
 
−
* [[byteTableToDword]]
 
−
* [[byteTableToQword]]
 
−
* [[byteTableToFloat]]
 
−
* [[byteTableToDouble]]
 
−
* [[byteTableToString]]
 
−
* [[byteTableToWideString]]
 

Latest revision as of 00:06, 25 January 2018

function wordToByteTable(Number) : table

Converts a WORD (2 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 WORD (2 bytes) only the lower portion of the number will be used. 

 i.e.: 0xFFFF00 : 0xFF00
         2 1 0      1 0


Function Parameters[edit]

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


Examples[edit]

Code: 

 local bt = wordToByteTable(0xFFFF)
                            --1 0
 writeBytes('00123ABC', bt)


Code: 

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

Output: 

 0 0A 
 1 00


Code: 

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

Output: 

 0 0A 
 1 00


Code: 

 local bt = wordToByteTable(0xFFFF00)
                            --2 1 0
 for i, v in ipairs(bt) do
   print(i - 1, string.format('%02X', v))
 end

Output: 

 0 00 
 1 FF


See also[edit]

Related Functions[edit]



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