| 摘要 |
PURPOSE:To facilitate an OS handshake, by providing a special machine language instruction equipped with a prescribed field for the purpose of supporting the OS handshake. CONSTITUTION:An instruction decoding mechanism 1, a handshake mechanism 2, a handshake control table 3, an OS switching mechanism 4, and a mode FF5 are provided. For the purpose of supporting the OS handshake, a special machine language instruction (instruction HSS) is provided. This instruction HSS is equipped with a field OP, which has a value indicating that the instruction is the instruction HSS, as the instruction code part and has a field ID, which indicates a function to be handshaked by a master OS, as an operand. The system is constituted in this manner to facilitate the OS handshake. |
