what does “mov offset(%rip), %rax” do?

by

The next. That’s a general rule on x86 (see also branches).

In Intel’s manual volume 2 section 2.2.1.6 RIP-Relative Addressing:

A new addressing form, RIP-relative (relative instruction-pointer) addressing, is implemented in 64-bit mode. An effective address is formed by adding displacement to the 64-bit RIP of the next instruction.

More Related Contents:

  1. How do RIP-relative variable references like “[RIP + _a]” in x86-64 GAS Intel-syntax work?
  2. Why does this MOVSS instruction use RIP-relative addressing? [duplicate]
  3. How to use RIP Relative Addressing in a 64-bit assembly program?
  4. What does an asterisk * before an address mean in x86-64 AT&T assembly?
  5. Understanding %rip register in intel assembly
  6. Difference between movq and movabsq in x86-64
  7. A couple of questions about [base + index*scale + disp] and AT&T disp(base, index, scale)
  8. How to load address of function or label into register
  9. rbp not allowed as SIB base?
  10. Why is the address of static variables relative to the Instruction Pointer?
  11. What is the meaning of MOV (%r11,%r12,1), %edx?
  12. Unable to move variables in .data to registers with Mac x86 Assembly
  13. How does “mov (%ebx,%eax,4),%eax” work? [duplicate]
  14. What does the bracket in `movl (%eax), %eax` mean?
  15. Using 8-bit registers in x86-64 indexed addressing modes
  16. What is callq instruction?
  17. Can rip be used with another register with RIP-relative addressing?
  18. What considerations go into predicting latency for operations on modern superscalar processors and how can I calculate them by hand?
  19. Why does the x86-64 / AMD64 System V ABI mandate a 16 byte stack alignment?
  20. Why in x86-64 the virtual address are 4 bits shorter than physical (48 bits vs. 52 long)?
  21. Is a sign or zero extension required when adding a 32bit offset to a pointer for the x86-64 ABI?
  22. Printing floating point numbers from x86-64 seems to require %rbp to be saved
  23. What do the E and R prefixes stand for in the names of Intel 32-bit and 64-bit registers?
  24. x64 instruction encoding and the ModRM byte
  25. Assembly registers in 64-bit architecture
  26. Differences between general purpose registers in 8086: [bx] works, [cx] doesn’t?
  27. gas: too many memory reference
  28. How to multiply a register by 37 using only 2 consecutive leal instructions in x86?
  29. Handling calls to (potentially) far away ahead-of-time compiled functions from JITed code
  30. Why use RIP-relative addressing in NASM?

Leave a Comment