Home

Welcome to FlexxCpu FAQ!
Please visit the page https://sourceforge.net/p/flexxcpu/blog/ to read latest news!!

What is FlexxCpu ?

• FlexxCpu is a small cpu simulation for experimental purposes with a simple text screen video memory buffer.
• The implementation of this CPU instruction set was very influenced by 8080, 6809, z80, 68k, 8086 and RISC architecture.
• It's mainly an experiment to develop new cpu opcodes and test them, as prime development objective.
• The second goal is to develop a CPU that runs as fast as possible close to the native speed of the machine code of the host cpu.
• It's a flexible Cpu simulation in the sense we can quite easily add new opcodes and test them.

What is FlexxCpu not ?

• FlexxCpu is not a console emulator.
• FlexxCpu is not a real cpu simulation with alu.
• FlexxCpu is not a complete hardware simulation.
• FlexxCpu is not to intend as the development of a complete hardware simulation like pc.
• FlexxCpu is not compatible with any existing Cpu instructions set.

What is missing in this simulation ?

• cpu interrupts
• I/O devices ports
• bus management
• graphic video buffer in the sense of pixels
• plus many other things... :-)

What will be added in the next release ?

• probably a load/save functions for the configuration and asm programs
• maybe a simple Color text-screen emulation device
• keyboard emulation device and graphics memory
• maybe a simple text editor for asm programs
• not many other things

Which development environment has been used ?

• CodeLite C/C++ IDE (release 11.07)
• MinGW compiler version 4.8.0 (rev2, Built by MinGW-builds project) Target: i686-w64-mingw32
• Windows 7 x64 operating system
• Files have been compressed with 7-zip 16.04 (64bit)
• The FlexxCpu executable is an 32bit image but works great in Windows 64.

To do

• Cross porting to Linux system
• C++ conversion

Project Members:

• Davide Ug. Lini (admin)