as: MIPS assembly options

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1 9.27.6 Directives to control code generation
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1 The '.module' directive allows command line options to be set directly
1 from assembly.  The format of the directive matches the '.set' directive
1 but only those options which are relevant to a whole module are
1 supported.  The effect of a '.module' directive is the same as the
1 corresponding command line option.  Where '.set' directives support
1 returning to a default then the '.module' directives do not as they
1 define the defaults.
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1    These module-level directives must appear first in assembly.
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1    Traditional MIPS assemblers do not support this directive.
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1    The directive '.set insn32' makes the assembler only use 32-bit
1 instruction encodings when generating code for the microMIPS processor.
1 This directive inhibits the use of any 16-bit instructions from that
1 point on in the assembly.  The '.set noinsn32' directive allows 16-bit
1 instructions to be accepted.
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1    Traditional MIPS assemblers do not support this directive.
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