Editing JMP (x86 instruction) (section)

== Short and Near Jumps ==

=== Short Jump ===

* The '''relative offset''' is an 8-bit signed value (<code>rel8</code>), specifying the distance from the current <code>EIP</code>.
* The <code>CS</code> register remains unchanged.

=== Near Jump ===

* The target is within the current code segment and can be:
** An '''absolute offset''' (loaded directly into <code>EIP</code>).
** A '''relative offset''' (<code>rel16</code> or <code>rel32</code>), calculated from the current <code>EIP</code>.

'''Operand Size'''

* For absolute offsets:
** '''16-bit mode''' clears the upper two bytes of <code>EIP</code>.
** '''32-bit mode''' allows the full offset range.
* For relative offsets, the size (<code>8, 16, or 32 bits</code>) depends on the instruction opcode and operand size attribute.

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