30 July 2015
Tip: How to create short jmp
When doing some assembler I noticed an important optimization setting for jumps. To force the compiler to generate short jumps (short jmp, short jz, short jnz) the Branch optimization setting must be >= 1.
A short jump requires 2 bytes of opcode instructions. Otherwise a jump takes 6 bytes. Short jumps are only generates when the target is within 127 bytes offset, of course.
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