Alternative ISA General is a discussion thread about non x86 hardware. While there have been such threads in the past, they were usually sporadic and not very well connected with one another, which meant that whatever transpired in one thread wasn't carried over to the next one.
Due to the rise of desktop-class ARM chips, interest in alternative hardware has risen, with many Anons even coming up with projects of their own. Therefore, a centralised place was needed, where we could keep track of the development and goals of the community.
While discussion of Intel or AMD hardware is not absolutely prohibited (and even if it were, who is gonna enforce this? LOL), due to the ubiquity of x86 hardware, it is assumed that whatever concerns such architecture can be discussed in any of the other gorillion threads on the board.
Anons are currently interested in porting several open source projects to the PowerPC architecture. Currently the following proposals have been made:
Grand Theft Auto III
Re3 is a homebrew engine intended to replace proprietay RenderWare with an open source implementation. Anons have been discussing making a port for the 32-bit PowerPC version of Mac OS X.
The Elder Scrolls III: Morrowind
OpenMW is a free and open source modern re-implementation of the Gamebryo engine.
OpenLara is a Classic Tomb Raider open-source engine.
Anon has been kind enough to put together a small reference library.
Amiga (Motorola 68k)
amigaXfer, an easy-to-use GUI tool for lightning fast disk/file transfers on the serial port with the Amiga
Amiga 3000 running PPC software on KillerNIC NPU.
Amiga Hardware Database
Compiled list of free/open sources related to classic Commodore Amiga computers
Atari (Motorola 68k)
Other Motorola 68k Links
Motorola 68000 computer
News around Motorola 680x0 CPU computer systems
Motorola 680x0 Resources
Emulate Windows NT 4.0 MIPS version (translated)
A guide to running IRIX 6.5.22 in MAME
MIPS is back (translated)
Windows NT 3.50/MIPS installation on QEMU/MIPS
Commodore 64 Preservation Project
Commodore 64 Resources
Commodore Computer Club - USA
Developing for the 6502 microprocessor and its relatives
The 6502 microprocessor resorce
Compiling for Powerpc, how to?
Evolution of PowerPC
Fixing Radeon Linux graphics on PowerPC
GNU/Linux Open Hardware PowerPC notebook
More about Spectre and the PowerPC (or why you may want to dust that G3 off)
http://bgafc.t-hosting.hu/oses4ppc.php Operating Systems for PowerPC
Haiku RISC-V port progress
SiFive: The Direction and Magnitude of SiFive Intelligence
The Resurgence of SPARC/Solaris (Okamoto Rikiya)
SPARC Internacional, Inc.
Hitachi SuperH RISC Engine (Kawasaki Ikuya et al)
SuperH RISC engine Family Features
The Computer History Simulation Project
VAX MP: SIMH VAX simulator able to execute OpenVMS (VAX/VMS)
Sharp PC-1500 (TRS-80 PC-2) resource page
ZX Spectrum Next
An interesting fpga handheld is being crowdfunded, with a focus on security
FPGA-related repositories on GitHub
Raspberry Pi (arm)
Raspberry Pi hardware
Apple Silicon (arm)
Apple M1 SoC Tech Specs
Check if an app is native Apple Silicon or not yet
Apple MacBook Air (2020, M1)
Developing for all sorts of CPU
ForwardCom Instruction Set
FrogFind search engine
High-energy Electron Beam Lithography for Nanoscale Fabrication
Transputer Instruction Set