helos1/interrupt/load_gdt.S

28 lines
483 B
ArmAsm

format elf64
public interrupt_ReloadSegments
section '.text' executable
; sysvx64call void interrupt_ReloadSegments()
;
; Clobbers: rax
interrupt_ReloadSegments:
mov eax, 0x10 ; my data segment
xor ax, ax
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
;jmp 0x08:.flush
; as in https://forum.osdev.org/viewtopic.php?f=1&t=30739
; farjump does not work in long mode, you need to do a far return:
pop rax
push qword 0x08 ; my code segment
push rax
retfq