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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@ -4,9 +4,11 @@ title: "Intel 80286 CPU Documentation: Real Mode"
permalink: /pubs/pc/reference/intel/80286/real_mode/
---
Intel 80286 CPU Documentation
Intel 80286 CPU Documentation: Real Mode
---
[The following information is from an undated 15-page Intel document titled "Undocumented iAPX 286 Test Instruction"]
### Executing Real Mode Programs in Protected Mode
An iAPX 86/88 program using real mode addressing can be executed in protected mode with full protection between
@ -300,5 +302,3 @@ Interrupts must be handled specially. Interrupt handlers for both real mode and
times. If an interrupt handler needs to access a data area, that data area must be addressable from both real and
protected mode. The real mode interrupt table would be would be kept at location 000000H. The protected mode IDT could
be anywhere. [LOADALL](../loadall/) will switch to the protected interrupt table.
[This information is from an undated 15-page Intel document titled "Undocumented iAPX 286 Test Instruction"]