No support for 32 bit .dat's

The following code:

``` DASM
.dat    1934226965
```

Will crash with:

```
Unknown (line 1, row 1): ".dat 1934226965"
```

This code is output by Clang/LLVM in the following scenario:

``` C
HardwareInfo lem1802_hardwareInfo = (HardwareInfo) {
    .hardware_id = 0x7349f615,
    .hardware_version = 0x1802,
    .manufacturer = 0x1c6c8b36
}
```
