Changes

Reverse-engineering the: [https://www.righto.com/2023/03/8086-multiplication-microcode.html multiplication algorithm] [https://www.righto.com/2023/04/reverse-engineering-8086-divide-microcode.html division microcode] [https://www.righto.com/2023/04/8086-microcode-string-operations.html string operations] [https://www.righto.com/2023/01/reverse-engineering-conditional-jump.html conditional jumps] [https://www.righto.com/2023/03/8086-register-codes.html register codes] [https://www.righto.com/2023/02/8086-modrm-addressing.html ModR/M addressing microcode] [https://www.righto.com/2023/02/how-8086-processor-determines-length-of.html instructions length] [https://www.righto.com/2023/02/silicon-reverse-engineering-intel-8086.html flags circuitry] [https://www.righto.com/2023/02/8086-interrupt.html interrupt circuitry] [https://www.righto.com/2023/01/reverse-engineering-intel-8086.html HALT circuitry] [https://www.righto.com/2020/08/reverse-engineering-8086s.html ALU circuitry] in the Intel 8086 processor

Internally, the 8086 features a 16‑bit Execution Unit (EU) that performs arithmetic, logic, and control functions, while simultaneously a separate Bus Interface Unit (BIU) handles all data transfers and external communications.

See: [https://www.righto.com/2023/01/the-8086-processors-microcode-pipeline.html The 8086 processor's microcode pipeline from die analysis] [https://www.righto.com/2024/03/8088-prefetch-circuitry.html Intel 8088 processor's instruction prefetch circuitry] [https://www.righto.com/2024/04/intel-8088-bus-state-machine.html Inside the Intel 8088 processor's bus interface state machine]

[[File:Block-diagram-of-8086.jpg]]