Right-click and save to download the asm and circuit files.

Safari users: Safari sometimes changes file extensions. Do not trust it.

MIPS examples
fixed_point.asm Shows how to add, multiply, and divide 24.8 fixed-point numbers.
Numerical examples Shows several bitwise operators and oddities. Bitflags are a way of treating the bits of an integer like a small array of booleans. Using bitwise operations to encode and decode colors.
Logisim Basics
constant_gates.circ Constants going into gates are pointless! Simplify!
tunnel_tutorial.circ Why you should use tunnels. THEY'RE GOOD OKAY
splitter_tricks.circ Using splitters more effectively.
splitter_bitfields.circ Using splitters to take apart/put together bitfields.
Combinational Circuits
full_adder.circ A 1-bit full adder made of gates.
fast_mult_4x4.circ A fast (combinational) 4x4 multiplier.
Sequential Circuits
RS_latch.circ An RS latch made of NOR gates.
Circuit.js RS Latch Circuit.js can simulate it at a lower level, so you can see the current and voltages.
D_latch.circ A D latch made from an RS latch.
D_flipflop.circ A D flip-flop made from 2 D latches.
register_4bit.circ A 4-bit register made from D flip-flops.
simple_counter.circ A register paired with an adder can count up each clock tick.
fan_controller.circ A simple FSM for controlling a ceiling fan.
slow_mult_4x4.circ An FSM that multiplies numbers using the slow (sequential) method.
div_4x4.circ An FSM that divides two 4-bit numbers.
pc_fsm.circ The "MIPS" PC FSM I made in class, but cleaned up.
decoding.circ Some examples of decoding an instruction.