Unions in arch/i386/isa

• we_command arch/i386/isa/if_wereg.h:104
• we_interrupt arch/i386/isa/if_wereg.h:123
• we_laar arch/i386/isa/if_wereg.h:61
• we_mem_sel arch/i386/isa/if_wereg.h:46
• wet_status arch/i386/isa/if_wereg.h:148