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Are any of these valid instructions?
movb (%rax),%al
movl (%ecx),%eax
movq (%ecx),%rax

1 Answer

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by (773k points)
 
Best answer
1) Yes, take 1 byte from value at address in rax and copy it into al.

2) No, cannot get address from 4 byte register.

3) No, cannot get address from 4 byte register.
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