[netwatch.git] / tools / poke-rls-asm.S

# poke-rls-asm.S
# Helper functions for poke-rls.c
# NetWatch system management mode administration console
#
# Copyright (c) 2008 Jacob Potter and Joshua Wise.  All rights reserved.
# This program is free software; you can redistribute and/or modify it under
# the terms found in the file LICENSE in the root of this source tree.

.global poke
poke:
	mov 8(%esp), %ecx

	# Parameter: I/O port to set bit 2 of
	mov 4(%esp), %edx
	inl %dx, %eax
	or $4, %eax
	outl %eax, %dx

	# Maybe SMM poked something?
	mov %ecx, %eax
	ret
Commit	Line	Data
98e930a2 JP	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
0889f342 JP	9	.global poke
0889f342 JP	10	poke:
0cd80c51	11	mov 8(%esp), %ecx
0889f342 JP	12
0889f342 JP	13	# Parameter: I/O port to set bit 2 of
ea6c242b	14	mov 4(%esp), %edx
0889f342 JP	15	inl %dx, %eax
	16	or $4, %eax
	17	outl %eax, %dx
	18
0889f342 JP	19	# Maybe SMM poked something?
	20	mov %ecx, %eax
	21	ret