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A die photo of the 8086 processor, showing the complex metal layer. Bond wires are connected to pads around the edges. The key functional blocks are labeled.

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A die photo of the 8086 processor, showing the complex metal layer. Bond wires are connected to pads around the edges. The key functional blocks are labeled.
https://assets.oldbytes.space/assets.oldbytes.space/media_attachments/files/109/847/348/768/857/606/original/9af4d53320380c22.png

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Ken Shirriff (kenshirriff@oldbytes.space)'s status on Sunday, 12-Feb-2023 03:37:54 JST Ken Shirriff

Processor flags indicate if values are zero, negative, overflowed, and so forth. Flags are critical for loops and conditional statements. But how are they implemented? I took a close look at the silicon of the Intel 8086 processor (1978) to find out.

In conversation Sunday, 12-Feb-2023 03:37:54 JST from oldbytes.space permalink