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ARM指令被没收
原标题:Confused about an ARM instruction
  • 时间:2011-11-22 19:03:28
  •  标签:
  • arm

我可以指出,ARM指令是:

strd.w          r0, r1, [r2]

我知道,这是一份储存指示,储存在<编码>*r2上,但我并不完全确定什么。 为什么有两个来源登记册(r0r1)和d.wsuffix意味着什么?

最佳回答

这项职能将2个32个轨道登记册的64个字面内容储存在记忆中。 8至4层金刚开始储存在<代码>r2的地址。 头4个缩略语来自r0,第二4个则来自r1

粗略当量 C是:

int32 *ptr=(int32 *) r2;
*(ptr) = r0;
*(ptr+1) = r1; //  ptr+1  adds four bytes to the memory position
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