Difference between revisions of "84PCE:Ports:001D"
From WikiTI
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| − | [[Category:84PCE:Ports:By_Address|001D - | + | [[Category:84PCE:Ports:By_Address|001D - Privileged Region]] [[Category:84PCE:Ports:By_Name|Privileged Region]] |
== Synopsis == | == Synopsis == | ||
'''Port Number:''' 001D-001F | '''Port Number:''' 001D-001F | ||
| − | '''Function:''' | + | '''Function:''' Stores the highest address of privileged executable code |
| − | + | These ports control which region of memory is allowed to execute port commands. It is set to the end of the OS during the boot sequence, and is unmapped for what appear to be security reasons. | |
Revision as of 11:14, 25 May 2016
Synopsis
Port Number: 001D-001F
Function: Stores the highest address of privileged executable code
These ports control which region of memory is allowed to execute port commands. It is set to the end of the OS during the boot sequence, and is unmapped for what appear to be security reasons.
