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Memory address map
System memory addresses
| Address | Function |
|---|---|
| 0-3FF | Interrupt vectors |
| 400-47F | ROM-BIOS RAM |
| 480-5FF | Basic and special system function RAM |
| 600-9FFFF | Program memory |
| 0A0000-0AFFFF | Video Graphics Adapter (VGA)/Enhanced Graphics Adapter (EGA) display memory |
| 0B0000-0B0FFF | Monochrome display adapter memory |
| 0B8000-0BFFFF | Color graphics adapter memory |
| 0C0000-0C7FFF | VGA/Super Video Graphics Adapter (SVGA) BIOS |
| 0C8000-0CBFFF | Enhanced Integrated Drive Electronics (EIDE)/Small Computer System Interface (SCSI) ROM, and older hard disk types |
| 0D0000-0D7FFF | BIOS extension area ROM |
| 0D0000-0DFFFF | LAN adapter ROM |
| 0E0000-0E7FFF | BIOS extension area ROM |
| 0E8000-0EFFFF | BIOS extension area ROM |
| 0F0000-0F3FFF | BIOS extension area ROM |
| 0F4000-0FBFFF | BIOS extension area ROM |
| 0F8000-0FCFFF | BIOS extension area ROM |
| 0FC000-0FDFFF | ROM BIOS |
| 0FE000-0FFFFF | ROM BIOS |