davornik

I have finally found solution and posted it here: https://stackoverflow.com/a/61874765/3225668

procedure ChkVMware; asm push rdx; push rcx; push rbx; mov rax, 'VMXh'; mov rbx, 0; mov rcx, 10; mov rdx, 'VX'; in rax, dx; <-- here is error: operand size mismatch cmp rbx, 'VMXh'; setz [Result]; pop rbx; pop rcx; pop rdx; end; Thank you. In that link registers are like eax, edx, ecx and rbx for 32-bit, but if you change them to 64-bit (rax, rdx, rcx, rbx) then I get error: operand size mismatch. I even dont know if this is proper way to change registers?