Multiply register with register.
Rt = Ra * Rb
This instruction performs an signed multiply between two general purpose registers and places the result in a general purpose register. If the result is greater than 64 bits then high order bits of the multiplication result are truncated. This is a multi-cycle operation requiring eight or less clock cycles to complete.
This instruction will not cause any exceptions.
| Opcode7 | Ra5 | Rb5 | Rt5 | Reserved4 | Func6 |
| 2 | Ra5 | Rb5 | Rt5 | ---- | 25 |