The table below shows which machine dependent features have been ported to which architectures. `+' means ported; `–' not ported and probably not portable; `–?' not ported, but probably feasible.
| Machine | OS | Dynamic | Dynamic | Saved | Profile |
|---|---|---|---|---|---|
| Stacks | Linking | States | |||
| ATARI | TOS 1.3 | – | –? | – | –? |
| DEC MIPS | Ultrix 3.1 | – | –? | + | + |
| Gould PN | UTX-2.1 | + | –? | –? | + |
| HP 9000s300 | HP-UX 8.0 | – | –? | –? | + |
| IBM PS2 | AIX 2.0 | – | –? | + | + |
| IBM RISC-6000 | AIX 3.1 | –? | + | + | + |
| IBM-PC | LINUX | – | – | – | –? |
| NeXT | MACH | –? | + | –? | + |
| SUN-3 and 4 | SunOs 4 | + | + | + | + |
| VAX | Ultrix | – | + | + | + |