07-12-2013, 05:15 PM
Hello there! I have recently been working on Insta-carry adders (Kudos to tomys for teaching me how they work) and I suddenly came across a slow 7 tick design. That was V1, which I never posted. The XNOR's in that adder were 4 and 3 ticks, and an additional 1 tick from a flash. Then, after messing around with it, I turned it into a 5 tick adder. 5 tick was much faster, but I knew I had to improve. Finally, I came up with this 4 tick insta-carry adder. It added amazingly fast, but it did stagger. The adder is extremely easy to make into ALU functions.
Size:
16 Long
2 Wide (With 2 block of additional slanting)
7 High
Speed:
4 ticks without flashes
Carry Speed:
0 ticks (Insta-carry)
Size:
16 Long
2 Wide (With 2 block of additional slanting)
7 High
Speed:
4 ticks without flashes
Carry Speed:
0 ticks (Insta-carry)