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movl $0x14,0x4(%rax,%rdx,1) meas %rax+%rdx*1+0x4 = $0x14（20）

but： mov 0x0(,%rax,8),%rax which is base segment resgister ？ what is this instuction meas？

DaVid
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1 Answers1

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Load into %rax the value from memory at the address %rax * 8. No base register and no offset just means those parts of the base + index * multiplier + offset are assumed to be 0x0.

twalberg
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