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Microarchitectures
From dankwiki
Microarchitecture is defined as those elements of a CPU design which are, to first order, invisible to application programmers (ie, not part of the instruction set). Those elements which are visible comprise the architecture.
x86 μarchitectures
| Microarchitecture | Maker | Process (min) | ALU bits | Addr bits | New instructions | Notes |
|---|---|---|---|---|---|---|
| 8086 | Intel | 3.2 μm | 16 | 20 | x86-16 | Segmented memory
Optional 80-bit 8087 FP coprocessor |
| 80186 | Intel | 2.6 μm | 16 | 20 | 8086-2 (ENTER/LEAVE, PUSHA/POPA, INS/OUTS) | Designed for embedded systems (clock, PIC, DMA on-die) |
