Programming, Vhdl, Fpga, Cpu.
instructions, it’s sufficient to check the top 4 bits of the opcode: 1001… is an IJMP, 1100… is an RJMP, and 1111… is an SBRS. Depending on these 4 bits, the FSM enters an execute step for the corresponding program instruction. IJMP simply loads Z into the PC and branches back to FETCH_1. RJMP is