Compare MIPS Files Online

What is MIPS?

MIPS (Microprocessor without Interlocked Pipeline Stages) is a reduced instruction set computer (RISC) architecture developed by John L. Hennessy and his team at Stanford University in 1985. The architecture and its assembly language became foundational in computer science education, serving as the primary teaching platform for processor design and computer architecture courses worldwide. MIPS assembly uses a clean, orthogonal instruction set with 32 general-purpose registers, three instruction formats (R, I, J), and a load-store architecture that became the textbook example of RISC design principles.

The architecture powered commercial products from SGI workstations and Nintendo 64 consoles to PlayStation and PlayStation 2, as well as numerous embedded systems and networking equipment from Cisco and others. David Patterson and John Hennessy's influential textbook "Computer Organization and Design" uses MIPS as its primary architecture, cementing its role in computer science curricula. MIPS assembly programming teaches fundamental concepts: register allocation, memory addressing modes, branch delay slots, procedure calling conventions, and pipeline hazard awareness. The SPIM and MARS simulators provide accessible environments for students to write and debug MIPS programs without physical hardware.

Although ARM has largely replaced MIPS in commercial embedded systems, MIPS remains the dominant architecture for teaching low-level programming concepts. The open-sourcing of MIPS under the MIPS Open initiative expanded its relevance in the open hardware movement.