Module subbyte 

Sub-byte 4-bit (s4) quantization operations and layers.

Functions

convolve_s4

Performs per-tensor quantized int4 (s4) 2D Convolution layer.

fully_connected_s4

Performs per-tensor quantized int4 (s4) Fully Connected layer.

pack_s4_pair

Packs two 4-bit signed integers (low, high) in the range [-8, 7] into a single byte.

unpack_s4_pair

Unpacks a byte containing two 4-bit signed integers into (low_nibble, high_nibble).