git.joshuawise.com / netwatch.git / blame
| 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 |
| 10 | poke: | |
| 0cd80c51 | 11 | mov 8(%esp), %ecx |
| 0889f342 JP |
12 | |
| 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 |