transistor based 4 bit calculator
4-bit adder and subtractor including decimal output, hex input and 1 byte of memory.
It's made almost entirely from transistors except for the EPROM used for the combinational logic for the decimal output.
4-bit adder and subtractor including decimal output, hex input and 1 byte of memory.
It's made almost entirely from transistors except for the EPROM used for the combinational logic for the decimal output.