PoliEcho/kern
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Implemented custom filesystem and got it to compile. It seems that it isn't loading the 3rd stage bootloader though

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Tom-on
2024-08-12 16:30:45 +02:00
parent 044b1eceac
commit be6b65863f
7 changed files with 149 additions and 165 deletions
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src/stage1.asm
+3 -3
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@@ -2,9 +2,9 @@
[org 0x7c00]
%define SUPERBLOCK 0x8c00
%define FIRST_INODE_BLOCK (SUPERBLOCK) + 12
%define STAGE3_INODE 0xb000 + 128
%define EXTENT0 (STAGE3_INODE) + 21 ; Offset of extent[0] in inode_t
%define FIRST_INODE_BLOCK (SUPERBLOCK) + 18
%define STAGE3_INODE 0xb000 + (2 * 64)
%define EXTENT0 (STAGE3_INODE) + 14 ; Offset of extent[0] in inode_t
start:
xor ax, ax
src/stage3.c
+5 -5
View File
@@ -27,16 +27,16 @@ void main() {
deinitMemoryRegion(MEMMAP_AREA, maxBlocks / BLOCKS_PER_BYTE);
// Load root dir, find kernel INode and parse it
superBlock_t* superblock = (superBlock_t*)SUPERBLOCK_LOC;
superblock->rootINodePtr = BOOT_FIRST_INODE_LOC + sizeof(inode_t);
diskRead(superblock->firstDataBlock * 8, 8, (void*)SCRATCH_BLOCK_LOC);
superblock_t* superblock = (superblock_t*)SUPERBLOCK_LOC;
superblock->rootInodePtr = BOOT_FIRST_INODE_LOC + sizeof(inode_t);
diskRead(superblock->dataStart * 8, 8, (void*)SCRATCH_BLOCK_LOC);
inode_t* inode;
if ((inode = getINode("kernel.bin")) == NULL) {
if ((inode = getInode("kernel.bin")) == NULL) {
__asm__ volatile ("cli; hlt" : : "a"(0xDeadBeef));
} else { loadFile(inode, (void*)KERNEL_LOC); }
if ((inode = getINode("term16n.fnt")) == NULL) {
if ((inode = getInode("term16n.fnt")) == NULL) {
__asm__ volatile ("cli; hlt" : : "a"(0xDeadBeef));
} else { loadFile(inode, (void*)FONT_LOC); }