Memory Map
PC
Start |
End |
Usage |
0 |
0x1000 - 1 |
BIOS and real mode interrupts |
0x07BE |
0x07FF |
Partition table passed to another boot loader |
? |
0x2000 - 1 |
Real mode stack |
0x7C00 |
0x7D00 - 1 |
Boot sector |
0x8000 |
? |
GRUB kernel |
0x68000 |
0x78000 - 1 |
Disk buffer |
? |
0x80000 - 1 |
Protected mode stack |
0x80000 |
? |
Heap |
? |
0xA0000 - 1 |
Extended BIOS Data Area |
0xA0000 |
0xC0000 - 1 |
Video RAM |
0xC0000 |
0x100000 - 1 |
BIOS |
0x100000 |
? |
OS area |
? |
? |
Heap and module code |