SH64 Directives - Using as
Description: Using as

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#### 9.35.3 SH64 Machine Directives

In addition to the SH directives, the SH64 provides the following directives:

`.mode [shmedia|shcompact]`
`.isa [shmedia|shcompact]`
  Specify the ISA for the following instructions (the two directives are equivalent). Note that programs such as `objdump` rely on symbolic labels to determine when such mode switches occur (by checking the least significant bit of the label's address), so such mode/isa changes should always be followed by a label (in practice, this is true anyway). Note that you cannot use these directives if you didn't specify an ISA on the command line.
`.abi [32|64]`
  Specify the ABI for the following instructions. Note that you cannot use this directive unless you specified an ABI on the command line, and the ABIs specified must match.
`.uaquad`
  Like .uaword and .ualong, this allows you to specify an intentionally unaligned quadword (64 bit word).