Some improvements for FOOTBALL, including support for the 386 LOADALL instruction

This commit is contained in:
Jeff Parsons 2016-01-28 22:22:36 -08:00
commit a5b9e0cae7
27 changed files with 4431 additions and 3981 deletions

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@ -1,12 +1,14 @@
---
layout: page
title: "Intel 80286 CPU Documentation: LOADALL"
title: "Intel 80286 LOADALL Instruction"
permalink: /pubs/pc/reference/intel/80286/loadall/
---
Intel 80286 CPU Documentation
Intel 80286 LOADALL Instruction
---
[The following information is from an undated 15-page Intel document titled "Undocumented iAPX 286 Test Instruction"]
### LOADALL (0F05H)
The iAPX 286 microprocessor (part number 80286) has an undocumented instruction used by Intel test programs to
@ -154,5 +156,3 @@ For proper protected mode operation, the following is required:
4. The DPL fields of the ES and DS descriptors should be 3 to prevent their being zeroed by RET or IRET
instructions.
[This information is from an undated 15-page Intel document titled "Undocumented iAPX 286 Test Instruction"]