Inconsistent Bit Packing Order

[heswithme]

Issue

Packing order inconsistency between pack_2 and pack_3 functions.

Current Implementation

pack_3: return (x[0] << 128) | (x[1] << 64) | x[2]

• First element (x[0]) → high bits (128-191)
• Last element (x[2]) → low bits (0-63)

pack_2: return p1 | (p2 << 128)

• First parameter (p1) → low bits (0-127)
• Second parameter (p2) → high bits (128-255)

Problem

The ordering is reversed between functions:

• pack_3: first element → most significant bits
• pack_2: first element → least significant bits

Recommendation

Standardize packing order. Either:

1. Change pack_2: return (p1 << 128) | p2
2. Or change pack_3: return x[0] | (x[1] << 64) | (x[2] << 128)

Option 1 preferred (first param in most significant bits).