For questions specifically regarding the Intel 8086 16-bit microprocessor
For questions specifically regarding the 8086 processor. This processor was manufactured by Intel and introduced in 1978.
Questions tagged [8086]
58 questions
24
votes
8 answers
Why is the Intel 8086 CPU called a 16-bit CPU?
Based on my understanding, the bitness of a CPU specifies how much memory it can address (which is determined by the size of the CPU's address bus I guess). For example: a 32-bit CPU can address 232 bytes of memory.
But why is the Intel 8086 CPU…
user14660
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10 answers
Can one isolate processes on a 8086?
I've read that modern OSes rely on hardware-powered process isolation to prevent processes (and/or users) from clobbering each others' RAM. But on Intel processors, this hardware was first included in the 80286 (protected mode), so Linux required a…
multics
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12
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1 answer
Difference between Intel 8087 and 8089 opcodes
The 8087 floating-point coprocessor presumably used different ESC codes to the 8089 input/output coprocessor, since then they would be able to listen over the bus for their own ESC instructions. The opcodes of the ESC instructions are in the range…
Single Malt
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