as.info: H8/300 Directives

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H8/300 Machine Directives

   `as' has only one machine-dependent directive for the H8/300:
`.h8300h'
     Recognize and emit additional instructions for the H8/300H
     variant, and also make `.int' emit 32-bit numbers rather than the
     usual (16-bit) for the H8/300 family.
   On the H8/300 family (including the H8/300H) `.word' directives
generate 16-bit numbers.