as: RX-Directives

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1 9.39.3 Assembler Directives
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1 The RX version of 'as' has the following specific assembler directives:
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1 '.3byte'
1      Inserts a 3-byte value into the output file at the current
1      location.
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1 '.fetchalign'
1      If the next opcode following this directive spans a fetch line
1      boundary (8 byte boundary), the opcode is aligned to that boundary.
1      If the next opcode does not span a fetch line, this directive has
1      no effect.  Note that one or more labels may be between this
1      directive and the opcode; those labels are aligned as well.  Any
1      inserted bytes due to alignment will form a NOP opcode.
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