Unions in arch/i386/isa

• we_command arch/i386/isa/if_wereg.h:105
• we_interrupt arch/i386/isa/if_wereg.h:124
• we_laar arch/i386/isa/if_wereg.h:62
• we_mem_sel arch/i386/isa/if_wereg.h:47
• wet_status arch/i386/isa/if_wereg.h:149