/gap

java -jar logisim-generic-2.7.1.jar

requires

Logi7400

Program counter

4X 74161 chained w/ carry out to next 4bit's clk or clk to each clock if jump is set

In:

  • CON:
    • J(0) (jump)
    • CE(1) (count enable)
    • CLR(2) (clear)
    • PCO(3) (program counter out)
  • CLK (clock)

I/O:

  • 14b <=> bus

Rom Address Register

4X 74173 w/ out tied down

IN:

  • CON:
    • RARI(4) (in)
    • CLR(2) (clear)
  • CLK (clock)

I/O:

  • 14b from bus
  • 14b to ROM