Fetching instructions to instruction buffer for simultaneous execution with long instruction sensing or buffer overwrite control

A program-controlled unit, comprising:

• a plurality of instruction-execution units for simultaneously executing successive instructions of a program having a sequence of instructions to be executed simultaneously;
• an assignment device allocating instructions to be executed simultaneously to desired instruction-execution units for simultaneous execution, independently of a position of each of the instructions within the sequence of instructions;
• a program memory for storing the instructions to be executed;
• a buffer;
• an instruction-fetching stage for fetching said instructions in a fetching operation, said instruction-fetching stage including a control unit for fetching the instructions to be executed from said program memory and writing the instructions to be executed into said buffer;
• said instructions to be executed simultaneously can be obtained in more than one fetching operation;
• the instructions to be executed including a given instruction not to overwrite at least a part of said buffer for a specific time.

A program-controlled unit, comprising:

• a plurality of instruction-execution units for simultaneously executing successive instructions of a program having a sequence of instructions to be executed simultaneously;
• an assignment device allocating instructions to be executed simultaneously to desired instruction-execution units for simultaneous execution, independently of a position of each of the instructions within the sequence of instructions;
• a program memory for storing the instructions to be executed;
• a buffer;
• an instruction-fetching stage for fetching said instructions in a fetching operation, said instruction-fetching stage including a a control -unit for fetching the instructions to be executed from said program memory and writing the instructions to be executed into said buffer;
• said instructions to be executed simultaneously can be obtained in more than one fetching operation;
• the instructions to be executed including a given instruction not to overwrite at least a part of said buffer until a specific event occurs.