Detecting Memory (x86): Difference between revisions

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Detecting Memory (x86) (view source)

Revision as of 17:07, 15 June 2016

143 bytes added ,  8 years ago
m
Reverted edits by Brendan (talk) to last revision by Karbonitekream
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VisualWikitext
m (Fix "BIOS needs protected mode for one of the "int 0x15 sub-functions" idiocy.)
m (Reverted edits by Brendan (talk) to last revision by Karbonitekream)
Line 131:
====BIOS Function: INT 0x15, AX = 0xE881====
 
This function isdoesn't identicalwork in real mode. Instead, it's supposed to be called from 32-bit protected mode. It returns the E801same function,information exceptas thatfunction E801, isbut uses extended registers (EAX/EBX/ECX/EDX). It only reports contiguous (usable) RAM.
 
Of course, this function is completely useless without documentation on how to call it.
 
====BIOS Function: INT 0x15, AX = 0xE801====
Brendan
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