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| author | Nic Gaffney <gaffney_nic@protonmail.com> | 2023-12-17 13:21:21 -0600 |
|---|---|---|
| committer | Nic Gaffney <gaffney_nic@protonmail.com> | 2023-12-17 13:21:21 -0600 |
| commit | 9dbc5231dd738d97eea13f8ecf9005e5b78ea0d3 (patch) | |
| tree | 86f69ed6156254fd2df2dede5cea0c4397de2ac4 /src/header | |
| parent | 5d5535adeeb71a5e5de78925ddd296d776ccaba5 (diff) | |
| download | gftos-9dbc5231dd738d97eea13f8ecf9005e5b78ea0d3.tar.gz | |
Restructured
Diffstat (limited to 'src/header')
| -rw-r--r-- | src/header/boot.s | 59 | ||||
| -rw-r--r-- | src/header/crti.s | 11 | ||||
| -rw-r--r-- | src/header/crtn.s | 7 |
3 files changed, 0 insertions, 77 deletions
diff --git a/src/header/boot.s b/src/header/boot.s deleted file mode 100644 index aba32ff..0000000 --- a/src/header/boot.s +++ /dev/null @@ -1,59 +0,0 @@ -MBALIGN equ 1<<0 ; Align loaded modules on page boundries */ -MBMEMINFO equ 1<<1 ; Provide memory map*/ -MBFLAGS equ MBALIGN | MBMEMINFO ; Multiboot flag field*/ -MAGIC equ 0x1BADB002 ;Lets bootloader find header*/ -CHECKSUM equ -(MAGIC + MBFLAGS) ; Proves we are multiboot via checksum*/ -CODESEG equ 0x08 -DATASEG equ 0x10 - -section .multiboot -align 4 - dd MAGIC - dd MBFLAGS - dd CHECKSUM - -section .bss -align 16 -stack_bottom: -resb 16384 -stack_top: - -section .text -global gdtr -gdtr: - dw 0 - dd 0 -global _start:function (_start.end - _start) -_start: - mov esp, stack_top - - extern get_gdtr - call get_gdtr - cli - lgdt [gdtr] - mov eax, cr0 - or al, 1 - mov cr0, eax - - call reloadSegments - - [bits 32] - extern kernel_main - call kernel_main - - - cli -.hang: hlt - jmp .hang -.end: - -reloadSegments: - JMP CODESEG:.reload_CS ; should def define a CODESEG -.reload_CS: - MOV AX, DATASEG - MOV DS, AX - MOV ES, AX ; TODO: Setup proper extra segment - MOV FS, AX ; TODO: Setup proper General purpose segments - MOV GS, AX ; ... - MOV SS, AX ; TODO: Setup proper stack segment - RET diff --git a/src/header/crti.s b/src/header/crti.s deleted file mode 100644 index 26d677a..0000000 --- a/src/header/crti.s +++ /dev/null @@ -1,11 +0,0 @@ -section .init -global _init:function -_init: - push ebp - mov ebp, esp, - -section .fini -global _fini -_fini: - push ebp - mov ebp, esp diff --git a/src/header/crtn.s b/src/header/crtn.s deleted file mode 100644 index 46f8de6..0000000 --- a/src/header/crtn.s +++ /dev/null @@ -1,7 +0,0 @@ -section .init - pop ebp - ret - -section .fini - pop ebp - ret |