错误A2070：无效的指令操作数IN SSE MASM64

Question

在ml64.exe 64bit（masm64）中编译时 SSE命令给我一个错误 我需要做什么才能将SSE命令包含在64位中？

.code

foo PROC

  movlps [rdx], xmm7 ;;error A2070: invalid instruction operands
  movhlps xmm6, xmm7
  movss [rdx+8], xmm6 ;;rror A2070: invalid instruction operands
  ret

foo ENDP

end

我收到错误：

1>Performing Custom Build Step
1> Assembling: extasm.asm
1>extasm.asm(6) : error A2070: invalid instruction operands
1>extasm.asm(10) : error A2070: invalid instruction operands
1>Microsoft (R) Macro Assembler (x64) Version 8.00.50727.215
1>Copyright (C) Microsoft Corporation.  All rights reserved.
1>Project : error PRJ0019: A tool returned an error code from "Performing Custom Build Step"

Answer 1

所以将两行修改为：

movlps QWORD PTR [rdx]，xmm7

movss dword ptr [rdx + 8]，xmm6

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