pub const fpregset_t = extern union {
    regs: [130]u32,
    chip_state: extern struct {
        cw: u16,
        sw: u16,
        fctw: u8,
        __fx_rsvd: u8,
        fop: u16,
        rip: u64,
        rdp: u64,
        mxcsr: u32,
        mxcsr_mask: u32,
        st: [8]extern union {
            fpr_16: [5]u16,
            __fpr_pad: u128,
        },
        xmm: [16]u128,
        __fx_ign2: [6]u128,
        status: u32,
        xstatus: u32,
    },
}