Change the inputs. See the outputs.

Interactive laboratories

Every experiment runs in your browser, even when the files are offline. No account, backend, framework or remote API is needed.

Turn individual bits on and off; the decimal and hex readings update instantly.

Convert in either direction, then compare signed and unsigned interpretations.

Switch A and B, select a gate, and observe the output with its truth table.

Change A, B and carry-in to witness sum and carry-out.

Choose two eight-bit inputs and an operation; inspect the result and status flags.

Set an incoming byte and tick the clock to capture it into a register.

Read, write, and inspect all sixteen addressable bytes.

Step through an educational accumulator program and watch PC, ACC and flags.

Toggle segment lines or choose a decimal digit; see a hardware-style display.

Advance register updates one step at a time and watch the sequence grow.