Open main menu

Wikipedia β

The M32R is a 32-bit RISC instruction set architecture (ISA) developed by Mitsubishi Electric for embedded microprocessors and microcontrollers. The ISA is now owned by Renesas Electronics Corporation, and the company designs and fabricates M32R implementations. M32R processors are used in embedded systems such as Engine Control Units, digital cameras and PDAs. The ISA was supported by Linux and the GNU Compiler Collection but was dropped in Linux kernel version 4.16[1].

Designer Renesas Electronics
Bits 32-bit
Introduced 1997
Design RISC
Encoding Fixed, 16- or 32-bit
Endianness Bi
16× 32-bit integer registers


  1. ^ Simon Sharwood (3 April 2018). "Linux 4.16 arrives, erases eight CPUs and keeps melting Meltdown". Situation Publishing. Archived from the original on 3 April 2018. Retrieved 3 April 2018. 

External linksEdit