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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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     Error: A2049
     Illegal use of register
 
     A register was used in an illegal context. For example, the
     following statement is illegal:
 
            mov    ax,cs:si
                                    -♦-