swap : swap top two stack words : index : visitInsn()

Description

Swaps the top two single-word items on the stack. word1/word2 cannot belong to a long or double.

Notes

There is no swap2, although you could use:

    dup2_x2
    pop2

to achieve the same effect.

Stack

Before	After
word1	word2
word2	word1
...	...

Bytecode

Type	Description
u1	swap opcode = 0x5F (95)