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Fixed bug that caused kernel to be improperly loaded

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This commit is contained in:
Xnoe 2021-08-29 11:27:35 +01:00
parent 4f2e8c5cd3
commit 7f2dd973f9
Signed by: xnoe
GPG Key ID: 45AC398F44F0DAFE
1 changed files with 6 additions and 4 deletions
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10
boot.asm
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@ -101,8 +101,6 @@ kernel_loader:
mov bx, word [pointer] mov bx, word [pointer]
mov al, byte [cluster] mov al, byte [cluster]
mov word [buffer+20h], ax
add al, 34 add al, 34
mov cl, al mov cl, al
@ -117,8 +115,9 @@ kernel_loader:
add word [pointer], 512 add word [pointer], 512
mov si, word [cluster] mov si, word [cluster]
shl si, 1
add si, buffer add si, buffer
add si, 1 ; add si, 1
cmp word [si], 0ffffh cmp word [si], 0ffffh
je kernel_loaded je kernel_loaded
@ -126,7 +125,10 @@ kernel_loader:
jmp kernel_loader jmp kernel_loader
kernel_loaded: kernel_loaded:
mov dword [buffer], 0xdeadbeef ; Pass boot device to the kernel
xor ax, ax
mov al, byte [drive]
push ax
jmp 2000h:0h jmp 2000h:0h
_boot_print: _boot_print: