static MemTxResult memory_region_oldmmio_read_accessor(MemoryRegion *mr, hwaddr addr, uint64_t *value, unsigned size, unsigned shift, uint64_t mask, MemTxAttrs attrs) { uint64_t tmp; tmp = mr->ops->old_mmio.read[ctz32(size)](mr->opaque, addr); if (mr->subpage) { trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size); } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) { hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr); trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size); } *value |= (tmp & mask) << shift; return MEMTX_OK; }