The KTX1 is an 8-bit fantasy computer made in LOVE2D.
Features
8-bit instruction set (4-bit opcode and 4-bit operand)Harvard architecture: 256 bytes of data memory and 256 bytes of program memory (broken into 16 byte memory banks)Includes an accumulator, program counter, and state register16x16p display1 byte numerical displayCustom assembly language with external assemblerDrag and drop binary programs to load them automaticallyIncludes several example programs written in both assembly and binary
Info about the instruction set can be found on the project’s GitHub page.
Download the simulator if you just want to test the computer.