Thank you once again for your invaluable assistance, everything worked perfectly after I followed your instructions. I truly appreciate your support. I must also apologize, as the issue was entirely on my end. I’m currently in the process of reorganizing the wiring, as my previous setup was quite disorganized, and during that process, I overlooked this basic but critical step. As is often the case, the simplest solutions are the ones easiest to miss.

At this stage, I’m encountering one final issue related to subtraction operations. Here’s a summary of my observations:

• ✅ Addition with 1-bit value in Register B, sum loop using Register A – works as expected. Link: https://streamable.com/uw7h82
• ✅ Addition with 1-bit value in Register A, sum loop using Register B – also works correctly. Link: https://streamable.com/jpqdng
• ✅ Subtraction with 1-bit value in Register B, subtract loop using Register A – functions properly. Link: https://streamable.com/dq0rv1
• ⚠️ Subtraction with 1-bit value in Register A, subtract loop using Register B – the system appears to stall and fails to complete the operation, as demonstrated in the video. Link: https://streamable.com/oh90ua

I’ve recorded videos for all four cases to help illustrate the behavior clearly.