| 摘要 |
<p>A sequence of short instructions, each with an identifier, forms a long instruction for a data processing system. One of the identifiers, such as the identifier in the first instruction, indicates to the system that the sequence is a single long instruction. Identifiers in other short instructions may indicate that they are part of a long instruction. A thirty two bit long instruction may be encoded as three sixteen bit instructions. In this case, the first two short instructions have a four bit prefix instruction identifiers followed by twelve bits of the long instruction. The third instruction has an eight bit main instruction identifier followed by the remaining eight bits of the long instruction.</p> |
