grub-dev: BIOS port memory map
9 BIOS port memory map
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Start End Usage
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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 0x71000 - 1 Disk buffer
? 0x80000 - 1 Protected mode stack
? 0xA0000 - 1 Extended BIOS Data Area
0xA0000 0xC0000 - 1 Video RAM
0xC0000 0x100000 - 1 BIOS
0x100000 ? Heap and module code
Info Catalog
grub-dev: Stack and heap size
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grub-dev: Video Subsystem