Simulation of a 4-bit CPU with Logisim
4-bit CPU by interfacing registers, an ALU and a memory chip incorporating the following features:
- Implement minimum five instructions namely MOV, ADD, SUB, LOAD, STORE, AND, NOT, OR, RETURN, CALL etc.
- Two General Purpose Registers (R1 and R2) excluding Special Purpose Registers like PC, PSW.
- 8 bit address and 4 bit data path
- Adopted appropriate memory chip to be addressed by 8 bit address decoder
- Result displayed on 7‐segment displays
- An ALU to execute above said instructions
