Certain processors have limitations on the size of the parameters and local variables in routines. This is shown in table (6.6).
| Processor | Parameters | Local variables |
| Intel 80x86 (all) | 64K | No limit |
| Motorola 68020 (default) | 32K | No limit |
| Motorola 68000 | 32K | 32K |
Furthermore, the m68k compiler, in 68000 mode, limits the size of data elements to 32K (arrays, records, objects, etc.). This restriction does not exist in 68020 mode.