Register Flags and Registers Identified in 8086 IC

The list contains the equivalence of the abbreviations of the segments or registers or even flags. Note that some of these are unidentified.

1. AX — Accumulator Registry
2. DX — Data Registry
3. BX — Base Registry
4. CX — Counter Registry
5. BP — Base Pointer
6. SP — Stack Pointer
7. IP — Instruction Pointer
8. SI — Source Index
9. DI — Destination Index
10. CS — Code Segment
11. DS — Data Segment
12. ES — Extra Segment
13. FS — ??? Segment
14. GS — ??? Segment
15. SS — Stack Segment (???)
16. OV — Overflow
17. NV — No Overflow
18. UP — Direction Up
19. DN — Direction Down
20. DI — Disable Interrupt
21. EI — Enable Interrupt
22. NG — Sign Flag Negative
23. PL — Sign Flag Positive
24. ZR — Zero
25. NZ — Not Zero
26. AC — Auxiliary Carry
27. NA — No Auxiliary Carry
28. PO — Parity Odd
29. PE — Parity Even
30. NC — No Carry
31. CY — Carry