1-bit Ripple Carry Adder
- 6 ticks
- 140
- 7×2×10
Verified specs
- Category
- Adder
- Throughput
- 4 ticks
- Stacks
- 2 wide west, any number
- Stacked
- 8-bit in 34 ticks · 16-bit in 66 ticks · 32-bit in 130 ticks
- Stateless
- Yes
Credits
File
- Name
1_bit_Ripple_Carry_Adder.schem- Uploaded
- October 17, 2026
- Downloads
- 1
- Conventions
- followed
Inputs and outputs
| Input | Bits | Min SS | Power | Delay |
|---|---|---|---|---|
| A | 1 | 1 | soft | t = 0 |
| B | 1 | 1 | soft | 0t |
| carry in | 1 | — | soft | +1t |
| Output | Bits | Min SS | First change | Settles |
| output | 1 | 15 | 4t | 6t |
| carry out | 1 | — | 2t | 5t |
Block distribution
- Solid
- 24
- Torch
- 18
- Dust
- 14
- Lever
- 3
Description
Timing
- Synced
- ✗
- Changes tested
- 40
Glitch: output, all off → A=1, B=1, carry in=0
| t | 0 | 1 | 2 | 3 | 4 | 5 | expect |
|---|---|---|---|---|---|---|---|
| output | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
output, bit by bit
| Bit | First changes | Settles by | Glitches |
|---|---|---|---|
| 0 | 4 | 6 | 3 |
carry out, bit by bit
| Bit | First changes | Settles by | Glitches |
|---|---|---|---|
| 0 | 2 | 5 | 2 |
Stacking in game
- 1 Paste
- without first-copy parts
- 2 Stack
//rstack w 7 2(8 copies)- 3 Paste
- first-copy parts, same spot:
//gmask air//paste -a//gmask - First copy
- its east layer, with 1 lever