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| author | Aleksa Vučković <aleksav013@gmail.com> | 2021-10-25 00:36:33 +0200 |
|---|---|---|
| committer | Aleksa Vučković <aleksav013@gmail.com> | 2021-10-25 00:36:33 +0200 |
| commit | 20dd72e40dc2728d3c5335d860e4b8ab8da14fcc (patch) | |
| tree | dabdfdf736c45f9632fa1388d2144b1de7a438b0 /src/boot.s | |
| parent | 0bca634f7e70b05239f46f3bd40bb37468d67957 (diff) | |
Changing build system to recursive make
Diffstat (limited to 'src/boot.s')
| -rw-r--r-- | src/boot.s | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/src/boot.s b/src/boot.s deleted file mode 100644 index 6fe5ab8..0000000 --- a/src/boot.s +++ /dev/null @@ -1,82 +0,0 @@ -.set ALIGN, 1<<0 -.set MEMINFO, 1<<1 -.set FLAGS, ALIGN | MEMINFO -.set MAGIC, 0x1BADB002 -.set CHECKSUM, -(MAGIC + FLAGS) - -.section .multiboot -.align 4 -.long MAGIC -.long FLAGS -.long CHECKSUM - -.global _start -.global load_gdt -.global load_idt -.global enable_interrupts -.global keyboard_handler -.global ioport_in -.global ioport_out - -.extern init_gdt_table -.extern handle_keyboard_interrupt -.extern kernel_main - -load_gdt: - movl 4(%esp), %edx - lgdt (%edx) - ret - -load_idt: - movl 4(%esp), %edx - lidt (%edx) - sti - ret - -keyboard_handler: - pushal - cld - call handle_keyboard_interrupt - popal - iretl - -ioport_in: - movl 4(%esp),%edx - in %dx,%al - ret - -ioport_out: - movl 4(%esp),%edx - movl 8(%esp),%eax - outb %al,%dx - ret - -.set CODE_SEGMENT, 0x08 -.set DATA_SEGMENT, 0x10 - -.section .bss -.align 16 -stack_bottom: -.skip 16384 -stack_top: - -.section .text -.type _start, @function -_start: - call init_gdt_table - ljmp $CODE_SEGMENT, $code - -code: - movw $DATA_SEGMENT, %ax - movw %ax, %ds - movw %ax, %es - movw %ax, %fs - movw %ax, %gs - movw %ax, %ss - movl $stack_top, %esp - cli - call _init - call kernel_main - hlt - -.size _start, . - _start |