Single Instruction Dual-Execution Model Processor Architecture

We present in this paper architecture and preliminary evaluation results of a novel dual-mode processor architecture which supports queue and stack computation models in a single core. The core is highly adaptable in both functionality and configuration. It is based on a reduced bit produced order queue computation instruction set architecture and functions into Queue or Stack execution models. This is achieved via a so called dynamic switching mechanism implemented in hardware. The current design focuses on the ability to execute Queue programs and also to support Stack based programs without considerable increase in hardware to the base architecture. We present the architecture description and design results in a fair amount of details.