---
license: mit
tags:
- pytorch
- safetensors
- threshold-logic
- neuromorphic
---

# threshold-shiftright4

4-bit logical right shift by 1 bit.

## Function

shiftright4(a3, a2, a1, a0) = [0, a3, a2, a1]

LSB (a0) is discarded, 0 shifts in at MSB.

## Examples

| Input | Output |
|-------|--------|
| 0001 | 0000 |
| 0101 | 0010 |
| 1000 | 0100 |
| 1111 | 0111 |

## Architecture

Single layer with 4 neurons.

| Output | Source | Weights | Bias |
|--------|--------|---------|------|
| y3 | 0 | [0,0,0,0] | -1 |
| y2 | a3 | [1,0,0,0] | -1 |
| y1 | a2 | [0,1,0,0] | -1 |
| y0 | a1 | [0,0,1,0] | -1 |

## Parameters

| | |
|---|---|
| Inputs | 4 |
| Outputs | 4 |
| Neurons | 4 |
| Layers | 1 |
| Parameters | 8 |
| Magnitude | 7 |

## License

MIT