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[GLOBAL read_eip]
read_eip:
pop eax
jmp eax
[GLOBAL copy_page_physical]
copy_page_physical:
push ebx
pushf
cli
mov ebx, [esp+12]
mov ecx, [esp+16]
mov edx, cr0
and edx, 0x7fffffff
mov cr0, edx
mov edx, 1024
.loop:
mov eax, [ebx]
mov [ecx], eax
add ebx, 4
add ecx, 4
dec edx
jnz .loop
mov edx, cr0
or edx, 0x80000000
mov cr0, edx
popf
pop ebx
ret
[GLOBAL perform_task_switch]
perform_task_switch:
cli
mov ecx, [esp+4]
mov eax, [esp+8]
mov ebp, [esp+12]
mov esp, [esp+16]
mov cr3, eax
mov eax, 0x12345
sti
jmp ecx
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