Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

   ◄Instruction Summary►  ◄Contents►  ◄Index►
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These instructions offer a fast way to convert from one data type to
another, while preserving the sign. Use only with signed integer values.
These instructions always use a value in the accumulator (AL or AX).
 
Mnemonic      Name
CBW           Convert Byte to Word
CWD           Convert Word to Double
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