The start of x86: Intel 8080 vs Intel 8086?
May 16, 2018 · 8086 was designed to make asm source porting from 8080 easy (not the other direction). It is not binary compatible with 8080, and not source-compatible either. 8080 is not …
为啥大学里还在讲8086CPU和8031单片机？ - 知乎
而且，我可以告诉你的是，在某些工业级的控制器中，8086 CPU也还在用，并不是完全消失了的。 还有，关于8031，这个是51单片机系列中的一种。
Why is the Intel 8086 CPU called a 16-bit CPU?
Jul 18, 2019 · The 8086 has 16-bit registers (though can access many of them as 8-bit ones too) and a 16-bit data bus so is generally considered a 16-bit CPU despite the 20-bit address bus. …
What does an ADC (add with carry) instruction following ADD do?
Apr 10, 2024 · I guess the OP wonders why there are two add instructions. With just one (which must be ADC), one would need always and additional instruction to clear the carry first …
Hardware and CPU-generated interrupt mapping at BIOS boot time
Mar 23, 2025 · I'm assuming a typical IBM PC or compatible, typical BIOS, and a 8086, 186, 286, 386, 486, 586 or 686 CPU. (I hope there won't be too many CPU-specific differences.) In this …
When and why is fwait necessary when using the 8087 coprocessor?
Jul 24, 2025 · Commercial 8086 assemblers would generally insert fwait s as appropriate on their own, so most programmers wouldn’t have had to take care of this. 286 and later CPUs handle …
设备 PCI需要进一步安装。什么原因? - 知乎
设备 PCI\VEN_8086&DEV_A370&SUBSYS_02A48086&REV_10\3&11583659&0&A3 需要进一步安装。 显示全部
ms dos - Can Microsoft Windows 1.0 run on CPUs older than Intel …
Jun 6, 2025 · Is there was any microprocessor older than Intel 8086 (e.g., Z80, Intel 8080) which can run The Microsoft Windows 1.0 and at least display the GUI without glitches? Also, using …
8086 - x86 memory alignment - Retrocomputing Stack Exchange
Apr 21, 2022 · For the 8086, unaligned word loads (first byte at an odd address) require two memory accesses, but an aligned word (first byte at an even address) can be loaded in one. …
8086存储容量为啥不是2^20×16? - 知乎
Mar 5, 2023 · 8086是一种16位的处理器，每次可以读取或写入16位的数据，因此它的存储容量是以字（word）为单位进行计算的。每个字占用16个位（2个字节），所以8086的存储容量应该 …