Useless instructions: Difference between revisions
Added ACTION!
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=={{header|8086 Assembly}}==
<code>xor ax,ax</code> (or any other data register) takes fewer bytes to encode than <code>mov ax,0</code> and achieves the same result. The only difference is that <code>mov ax,0</code> doesn't set the flags, which can be used to the programmer's advantage when sequencing operations.
=={{header|Action!}}==
The ACTION! language has 4 fundamental data types, BYTE, CHAR, INT and CARD. The first two can be used interchangably and are 8-bit unsigned integers. This is presumably for documentation purposes, however the language also has a macro facility that would allow the programmer to <code>DEFINE CHAR="BYTE"</code> or <code>DEFINE BYTE="CHAR"</code> if only one was available.
=={{header|ALGOL 68}}==
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