git.joshuawise.com / netwatch.git / blame_incremental
| Commit | Line | Data |
|---|---|---|
| 1 | .global poke | |
| 2 | poke: | |
| 3 | # Preload registers: $0x1BADD00D | |
| 4 | mov $0x1BADD00D, %ecx | |
| 5 | ||
| 6 | # Parameter: I/O port to set bit 2 of | |
| 7 | mov 4(%esp), %edx | |
| 8 | inl %dx, %eax | |
| 9 | or $4, %eax | |
| 10 | outl %eax, %dx | |
| 11 | ||
| 12 | # Maybe SMM poked something? | |
| 13 | mov %ecx, %eax | |
| 14 | ret |