Mo80 provides extra registers and improves orthogonality, which increases productivity and performance, but also allows compilers for higher languages to be implemented more easily. Additionally, I propose a 32-bit extension. (2/5) #MSX

After having studied and used various 32-bit Z80 instruction set extensions such as Z380 and TLCS900, I believe I've come up with a better and more programmer-friendly solution that expands the instruction set to 32-bit more powerfully and more elegantly. (3/5) #MSX