VM_PHYSMEM_PTR_SWAP
VM_PHYSMEM_PTR_SWAP(x, x + 1);
VM_PHYSMEM_PTR_SWAP(x, x + 1);
VM_PHYSMEM_PTR_SWAP(x, x + 1);
VM_PHYSMEM_PTR_SWAP(x, x + 1);
VM_PHYSMEM_PTR_SWAP(x, x - 1);
VM_PHYSMEM_PTR_SWAP(x, x - 1);