28 Facts About MIPS architecture

In March 2021, MIPS announced that the development of the MIPS architecture had ended as the company is making the transition to RISC-V.

MIPS architecture III was eventually implemented by a number of embedded microprocessors.

MIPS architecture V was completed by the integer-only MDMX extension to provide a complete system for improving the performance of 3D graphics applications.

When MIPS architecture Technologies was spun-out of Silicon Graphics in 1998, it refocused on the embedded market.

In December 2018, Wave Computing, the new owner of the MIPS architecture, announced that MIPS ISA would be open-sourced in a program dubbed the MIPS Open initiative.

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In March 2019, one version of the MIPS architecture was made available under a royalty-free license, but later that year the program was shut down again.

MIPS architecture has joined the RISC-V foundation and future processor designs will be based on the RISC-V architecture.

MIPS architecture I has instructions that load and store 8-bit bytes, 16-bit halfwords, and 32-bit words.

Since MIPS I is a 32-bit architecture, loading quantities fewer than 32 bits requires the datum to be either sign-extended or zero-extended to 32 bits.

MIPS architecture I requires all memory accesses to be aligned to their natural word boundaries, otherwise an exception is signaled.

MIPS architecture I has instructions to perform bitwise logical AND, OR, XOR, and NOR.

MIPS architecture I has instructions to perform left and right logical shifts and right arithmetic shifts.

MIPS architecture I has instructions for signed and unsigned integer multiplication and division.

MIPS architecture I has two instructions for software to signal an exception: System Call and Breakpoint.

MIPS architecture II removed the load delay slot and added several sets of instructions.

MIPS architecture III is a backwards-compatible extension of MIPS architecture II that added support for 64-bit memory addressing and integer operations.

MIPS architecture III added a supervisor privilege level in between the existing kernel and user privilege levels.

MIPS architecture III removed the Coprocessor 3 support instructions, and reused its opcodes for the new doubleword instructions.

MIPS architecture IV was designed to mainly improve floating-point performance.

MIPS architecture IV added several new FP arithmetic instructions for both single- and double-precision FPNs: fused-multiply add or subtract, reciprocal, and reciprocal square-root.

MIPS architecture V added a new data type, the Paired Single, which consisted of two single-precision floating-point numbers stored in the existing 64-bit floating-point registers.

MIPS architecture has had several calling conventions, especially on the 32-bit platform.

MIPS architecture EABI is supported by GCC but not LLVM, and neither supports NUBI.

MIPS architecture processors are used in embedded systems such as residential gateways and routers.

MIPS architecture processors used to be popular in supercomputers during the 1990s, but all such systems have dropped off the TOP500 list.

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Sample MIPS architecture-based platforms include both bare metal environments and platforms for booting unmodified Linux binary images.

MARS is another GUI-based MIPS architecture emulator designed for use in education, specifically for use with Hennessy's Computer Organization and Design.

WebMIPS architecture is a browser-based MIPS architecture simulator with visual representation of a generic, pipelined processor.