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Jeff Parsons 2015-12-10 09:11:46 -08:00
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pubs/pc/reference/intel/80286/extra_prefixes/README.md
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@ -1,5 +1,13 @@
Instructions Longer than 10 Bytes
---
layout: page
title: "Intel 80286 CPU Documentation: Extra Prefixes"
permalink: /pubs/pc/reference/intel/80286/extra_prefixes/
---
Intel 80286 CPU Documentation
---
### Instructions Longer than 10 Bytes
When the CPU detects an instruction that is illegal due to being greater than 10 bytes in length, it generates an
exception #13 (General Protection Violation) instead of exception #6 (Invalid Opcode). The only way an instruction
@ -9,4 +17,4 @@ greater than ten bytes can occur is by using the assembler to intentionally plac
There are no plans to change this functionality of the 80286 and future editions of the "iAPX286 Programmer's Reference
Manual" and 80286 datasheet will accurately describe how 80286 reacts to instructions greater than 10 bytes in length.
[This information is from an Intel document titled "80286 ARPL and Overlength Instructions, 15 October 1984"]
[This information is from an Intel document titled "80286 ARPL and Overlength Instructions, 15 October 1984"]