46 lines
791 B
ArmAsm
46 lines
791 B
ArmAsm
format elf64
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public interrupt_ReloadSegments
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public interrupt_LoadGDT
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public interrupt_LoadIDT
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section '.text' executable
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; sysvx64call void interrupt_LoadGDT(void* gdtr)
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;
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; Input: (void* rdi)
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; Clobbers: none
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interrupt_LoadGDT:
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lgdt [rdi]
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ret
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; sysvx64call void interrupt_ReloadSegments()
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;
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; Clobbers: rax
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interrupt_ReloadSegments:
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mov eax, 0x10 ; my data segment
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xor ax, ax
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mov ds, ax
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mov es, ax
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mov fs, ax
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mov gs, ax
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mov ss, ax
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;jmp 0x08:.flush
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; as in https://forum.osdev.org/viewtopic.php?f=1&t=30739
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; farjump does not work in long mode, you need to do a far return:
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pop rax
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push qword 0x08 ; my code segment
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push rax
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retfq
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; sysvx64call void interrupt_LoadIDT(void* idtr)
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;
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; Input: (void* rdi)
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; Clobbers: none
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interrupt_LoadIDT:
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lidt [rdi]
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ret
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