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Add support for legacy Multiboot aka Multiboot1

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This commit is contained in:
Alex
2023-09-06 22:43:33 +03:00
parent 6db0df6afe
commit a452b9acd1
37 changed files with 988 additions and 1169 deletions
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30
Architecture/i386/Bootstrap/Multiboot/_start.s
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@@ -15,26 +15,24 @@
along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
.intel_syntax noprefix
.extern Multiboot1_start
.extern Multiboot2_start
.code32
.extern Multiboot_start
.section .bootstrap.text, "a"
.global _start
_start:
cmp eax, 0x36D76289
je .Multiboot2
cmp eax, 0x1BADB002
je .Multiboot1
int3
/* Check for multiboot */
cmp $0x2BADB002, %eax
je .Multiboot
.Multiboot1:
call Multiboot1_start
jmp .
/* Unkown bootloader */
.Hang:
cli
hlt
jmp .Hang
.Multiboot2:
call Multiboot2_start
jmp .
/* Multiboot */
.Multiboot:
call Multiboot_start
jmp .Hang