Anonymous user
Bochs VBE Extensions: Difference between revisions
Jump to navigation
Jump to search
no edit summary
| [unchecked revision] | [unchecked revision] |
No edit summary |
No edit summary |
||
Line 48:
[TODO: some example code]
=== Clearing display memory ===
When enabling the VBE extensions, Bochs clears the video memory (i.e. sets all bytes to 0). To prevent this from happening, use the VBE_DISPI_NOCLEARMEM flag (0x80) when enabling the VBE extensions (so write a value of VBE_DISPI_INDEX_ENABLE | VBE_DISPI_NOCLEARMEM (0x84) for banked mode and VBE_DISPI_INDEX_ENABLE | VBE_DISPI_LFB_ENABLED | VBE_DISPI_NOCLEARMEM (0xC4) for LFB).
[[Category:Video]]
| |||