Modules If arm assembler is the heart of the computer in physical terms, then modules are the heart of RISC OS.

arm assembler site updated Richard Murray's ARM assembler site is a guide to learning how to write code in assembler under RISC OS.

The fact that it used to stand for Advanced RISC Machines is now relegated to the ' History ' section of a corporate backgrounder.

early 1980s, a different concept emerged - the Reduced Instruction Set Computer, or RISC machine.

STem STem - The atari ST emulator For RISC OS... the best atari ST emulators for PCs.

First off, some people see the future of RISC os as an embedded OS.

programs compiled for RISC processors tend to be substantially larger than those compiled for CISC architectures such as the 680x0.

That said, it was quite the impressive machine at the time: an ARM60 32-bit RISC CPU, a pair of video co-processors, the ability to play audio and video CDs, and the possibility of using up to eight controllers at once, to name but a few.

The other propriety CPU, the 26.6 Mhz "Jerry", contained a 32-bit RISC Digital Signal Processor, in addition to units responsible for 16-bit stereo sound, joystick control, wavelength synthesis, and other functions.

John Carmack, author of Doom, said that if Atari "offered a dynamic cache on the RISC processors and had a tiny bit of buffering on the blitter, it could have put a reasonable fight against Sony."

Other technical specifications include a SH-4 206 MHz RISC CPU, PowerVR2 CLX2 graphics engine, 16MB of main RAM, 8MB of video RAM, and 2 MB of sound RAM.