Signal processing apparatus and non-transitory computer-readable storage medium

A non-transitory computer-readable storage medium storing programs to be executed by a signal processing apparatus comprising:

• a CPU;
• and
• a programmable signal processing circuit having the following:
• a plurality of execution circuits each of which has a program memory and executes a program stored in the program memory,
• wherein the plurality of execution circuits can operate in parallel;
• a register file used for the plurality of execution circuits,
• wherein the register file has a plurality of registers serially connected and transfers, in accordance with a shift signal, data held by each of the plurality of registers to a register located downstream;
• a shift controller that issues the shift signal to the plurality of execution circuits at a timing at which the plurality of execution circuits do not execute the program,
• wherein the program stored in the storage medium causes the CPU to store, to each program memory of the plurality of execution circuits, a program including instructions to make a register of the register file located upstream of a register that another execution circuit is to reference in order to input data be a storage destination for data of a result by the execution of the program so that the data of the result by the execution of the program by the execution circuit is transferred to the another execution circuit via the register file.