Abstract: In an implementation, a processing system includes an instruction fetch (IF) memory storing IF instructions; an arithmetic/logic (AL) instruction memory (IMemory) storing instructions; and a programmable instruction fetch mechanism to generate IMemory instruction addresses, from IF instructions fetched from the IF memory, to select instructions to be fetched from the IMemory for execution, wherein at least one IF instruction includes a loop count field indicating a number of iterations of a loop to be performed, a loop start address of the loop, and a loop end address of the loop.

Abstract: A computing architecture and software techniques are described which modifies the basic sequential instruction fetching mechanism of a processor by separating a program's control flow from its functional execution flow. A compiled sequential HLL program's static control structures are analyzed and a separate program based on its own unique instructions is created that primarily generates addresses for the selection of functional execution instructions. The original program is now represented by an instruction fetch program and a set of function/logic execution instructions. This basic split allows multiple instruction addresses to be generated in parallel to access multiple instruction memories. These multiple instruction memories contain only the function/logic instructions of the program and no control structure operations such as branches or calls. All the original program's control instructions are split from the original program and used to create the instruction addressing program.