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Rev 2005 Rev 2012
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    if (rd_size == 0)
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    if (rd_size == 0)
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        return false;
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        return false;
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    void * rd_addr = as_get_mappable_page(rd_size);
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    void * rd_addr = as_get_mappable_page(rd_size);
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    map_physmem(rd_ph_addr, rd_addr, ALIGN_UP(rd_size, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE);
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    physmem_map(rd_ph_addr, rd_addr, ALIGN_UP(rd_size, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE);
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    return true;
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    return true;
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}
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}
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