masm32代码显示错误“A2206”

Question

以下代码段应该在InInitializationOrderModuleList内遍历PEB并返回kernel32.dll的基址。但是，当我尝试Console assemble and link以下代码时，我收到错误消息，指出存在missing operator in expression。

.486                                                     
option casemap :none                    

include \masm32\include\masm32rt.inc

.code
start:
call main
exit

main proc
mov eax, large fs:30h
mov eax, [eax+0Ch]
mov esi, [eax+1Ch]
lodsd
mov eax, [eax+8]
print str$(eax)
ret
main endp

end start

所以，我改为： -

mov eax, fs:30h

我得到的错误是error A2108: Use of register assumed to ERROR。我做错了什么？

Answer 1

刚才想到，添加assume fs:nothing可以解决问题。