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Implemented Higher Half Kernel!

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- Minor makefile chnages
- stage3.c "prekernel", sets up memory stuff and jumps to kernel
- kernel is now at 0xC0000000 - 3GB+ "higher half"
- Added some global variables in memory/addresses.h
This commit is contained in:
Tom-on
2024-05-26 15:49:48 +02:00
parent 01323c5874
commit e9abfc2e4a
11 changed files with 135 additions and 65 deletions
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include/memory/addresses.h
+13 -5
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@@ -1,10 +1,18 @@
#ifndef ADDRESSES_H
#define ADDRESSES_H
#define MEMMAP_AREA 0x30000
#define KERNEL_LOC 0x50000
#define FILETABLE_LOC 0x7000
#define SMAP_ENTRY_COUNT 0x8500
#define SMAP_ENTRIES 0x8504
// Locations
#define KERNEL_LOC 0x100000
#define FILETABLE_LOC 0x7000
// Physical memory manager
#define MEMMAP_AREA 0x30000
#define SMAP_ENTRY_COUNT 0x8500
#define SMAP_ENTRIES 0x8504
#define PHYS_MEM_MAX_BLOCKS 0x1804
#define PHYS_MEM_USED_BLOCKS 0x1808
// Virtual memory manager
#define CURRENT_PAGE_DIR_ADDR 0x1800
#endif