static int xen_pt_word_reg_write(XenPCIPassthroughState *s, XenPTReg *cfg_entry,

                                 uint16_t *val, uint16_t dev_value,

                                 uint16_t valid_mask)

{

    XenPTRegInfo *reg = cfg_entry->reg;

    uint16_t writable_mask = 0;

    uint16_t throughable_mask = get_throughable_mask(s, reg, valid_mask);



    /* modify emulate register */

    writable_mask = reg->emu_mask & ~reg->ro_mask & valid_mask;

    cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);



    /* create value for writing to I/O device register */

    *val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);



    return 0;

}

static int xen_pt_word_reg_write(XenPCIPassthroughState *s, XenPTReg *cfg_entry,

                                 uint16_t *val, uint16_t dev_value,

                                 uint16_t valid_mask)

{

    XenPTRegInfo *reg = cfg_entry->reg;

    uint16_t writable_mask = 0;

    uint16_t throughable_mask = get_throughable_mask(s, reg, valid_mask);



    

    writable_mask = reg->emu_mask & ~reg->ro_mask & valid_mask;

    cfg_entry->data = XEN_PT_MERGE_VALUE(*val, cfg_entry->data, writable_mask);



    

    *val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);



    return 0;

}

static int FUNC_0(XenPCIPassthroughState *VAR_0, XenPTReg *VAR_1,

                                 uint16_t *VAR_2, uint16_t VAR_3,

                                 uint16_t VAR_4)

{

    XenPTRegInfo *reg = VAR_1->reg;

    uint16_t writable_mask = 0;

    uint16_t throughable_mask = get_throughable_mask(VAR_0, reg, VAR_4);



    

    writable_mask = reg->emu_mask & ~reg->ro_mask & VAR_4;

    VAR_1->data = XEN_PT_MERGE_VALUE(*VAR_2, VAR_1->data, writable_mask);



    

    *VAR_2 = XEN_PT_MERGE_VALUE(*VAR_2, VAR_3, throughable_mask);



    return 0;

}

static int FUNC_0(XenPCIPassthroughState *VAR_0, XenPTReg *VAR_1,
uint16_t *VAR_2, uint16_t VAR_3,
uint16_t VAR_4)
{ XenPTRegInfo *reg = VAR_1->reg; uint16_t writable_mask = 0; uint16_t throughable_mask = get_throughable_mask(VAR_0, reg, VAR_4); writable_mask = reg->emu_mask & ~reg->ro_mask & VAR_4; VAR_1->data = XEN_PT_MERGE_VALUE(*VAR_2, VAR_1->data, writable_mask); *VAR_2 = XEN_PT_MERGE_VALUE(*VAR_2, VAR_3, throughable_mask); return 0; }