mirror of
https://github.com/Tom-on64/kern.git
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42 lines
528 B
ArmAsm
42 lines
528 B
ArmAsm
bits 32
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; Flag bits
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%define ALIGN 1<<0
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%define MEMINFO 1<<1
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; Field values
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%define MAGIC 0x1BADB002
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%define FLAGS (ALIGN | MEMINFO)
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%define CHECK -(MAGIC + FLAGS)
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; Multiboot 1 header
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section .multiboot
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align 4
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multiboot:
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dd MAGIC
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dd FLAGS
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dd CHECK
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section .bss
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align 16
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; Initialize stack
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stack_bottom:
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resb 16384
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stack_top:
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; Entry point
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section .text
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global _start
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extern kmain
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_start:
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mov esp, stack_top ; Setup stack
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push ebx
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call kmain ; Call kernel main
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; Hang if kernel returns
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cli
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.hlt: hlt
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jmp .hlt
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