Intel 80286 CPU Documentation
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### 80286 Errata

* [ARPL Behavior](arpl/)
* [Coprocessor Operand Beyond Segment Limit](b2_b3_info/#coprocessor-operand-partially-beyond-limit-of-erc-segment)
* [Instructions Longer than 10 Bytes](extra_prefixes/)
* [Loading Null Selector Values Into DS or ES Registers](b2_b3_info/#loading-null-selector-values-into-ds-or-es-registers)
* [Non-Restartable Protection Violations](b2_b3_info/#non-restartable-protection-violations)
* [POPF Behavior](b2_b3_info/#popf-behavior)
* [REP MOVS and REP INS Restartability](rep_restart/)
* [Early 80286 Errata of Interest](early_errata/#early-80286-errata-of-interest)

### 80286 Undocumented Opcodes

* [LOADALL](loadall/)

### 80286 Real-Mode Emulation Notes

* [Executing Real Mode Programs in Protected Mode](real_mode/)
* [Discrepancies from an iAPX 86/88 Using Emulation](real_mode/#discrepancies-from-an-iapx-86-88-using-emulation)
* [Extending the Address Space of Current iAPX 86 Software](real_mode/#extending-the-address-space-of-current-iapx-86-software)
* [Mixing Real Mode and Protected Mode](real_mode/#mixing-real-mode-and-protected-mode)
* [Exceptions from Undefined Opcodes and String Instructions](early_errata/)

### Assorted Publications

![iAPX 286 Hardware Reference (1983)](../static/iAPX_286_Hardware_Reference--1983/thumbs/iAPX_286_Hardware_Reference--1983.jpg "link:http://bitsavers.trailing-edge.com/pdf/intel/_dataBooks/1983_iAPX_286_Hardware_Reference.pdf:200:260")
![iAPX 286 OS Writer's Guide (1983)](../static/iAPX_286_Operating_System_Writers_Guide--1983/thumbs/iAPX_286_Operating_System_Writers_Guide--1983.jpg "link:http://bitsavers.trailing-edge.com/pdf/intel/_dataBooks/1983_iAPX_286_Operating_System_Writers_Guide.pdf:200:260")
![iAPX 286 Programmer Reference (1985)](../static/iAPX_286_Programmers_Reference_Manual--1985/thumbs/iAPX_286_Programmers_Reference_Manual--1985.jpg "link:http://bitsavers.trailing-edge.com/pdf/intel/_dataBooks/1985_iAPX_286_Programmers_Reference_Manual.pdf:200:260")
![80286/80287 Programmer Reference (1987)](../static/80286/progref/thumbs/80286_and_80287_Programmers_Reference_Manual_1987 1.jpeg "link:progref/:200:260")