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11 BIOS port memory map

StartEndUsage
00x1000 - 1BIOS and real mode interrupts
0x07BE0x07FFPartition table passed to another boot loader
?0x2000 - 1Real mode stack
0x7C000x7D00 - 1Boot sector
0x8000?GRUB kernel
0x680000x71000 - 1Disk buffer
?0x80000 - 1Protected mode stack
?0xA0000 - 1Extended BIOS Data Area
0xA00000xC0000 - 1Video RAM
0xC00000x100000 - 1BIOS
0x100000?Heap and module code