Intel 80287, 80286 manual 8000 r

Models: 80287 80286

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80286 BASE ARCHITECTURE

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Figure 2-1. Segmented Virtual Memory

A byte is 8 contiguous bits starting on an addressable byte boundary. The bits are numbered 0 through 7, starting from the right. Bit 7 is the most significant bit:

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A word is defined as two contiguous bytes starting on an arbitrary byte boundary; a word thus contains 16 bits. The bits are numbered 0 through 15, starting from the right. Bit 15 is the most significant bit. The byte containing bit 0 of the word is called the low byte; the byte containing bit 15 is called the high byte.

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Image 28
Intel 80287, 80286 manual 8000 r