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path: root/lib9/lock-Nt-386.c
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#include "lib9.h"

ulong
_tas(ulong *la)
{
	ulong v;

	_asm {
		mov eax, la
		mov ebx, 1
		xchg	ebx, [eax]
		mov	v, ebx
	}
	return v;
}