Introduce Flags to the Dataline

[Kaushikdey647]

ALU Flags

Learn more about ALU flags here

Requirements

Currently, we need just three flags.

• Negative flag (if the result is negative)
• Zero flag (if the result is zero)
• Carry flag (if there's a carry)

As we expand our instructions, more flags can be added, so contributors are requested to maintain the modularity.

Guidelines

• Use logisim (and not logisim evolution), you can download it from here
• Use tunnels whenever needed.
• All tunnels are named using snake_case