]> Joshua Wise's Git repositories - netwatch.git/blob - tools/poke-rls-asm.S
First pass of 410watch UI code.
[netwatch.git] / tools / poke-rls-asm.S
1 # poke-rls-asm.S
2 # Helper functions for poke-rls.c
3 # NetWatch system management mode administration console
4 #
5 # Copyright (c) 2008 Jacob Potter and Joshua Wise.  All rights reserved.
6 # This program is free software; you can redistribute and/or modify it under
7 # the terms found in the file LICENSE in the root of this source tree.
8
9 .global poke
10 poke:
11         mov 8(%esp), %ecx
12
13         # Parameter: I/O port to set bit 2 of
14         mov 4(%esp), %edx
15         inl %dx, %eax
16         or $4, %eax
17         outl %eax, %dx
18
19         # Maybe SMM poked something?
20         mov %ecx, %eax
21         ret
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