loop
The loop
statement creates a label that can later be branched to with a br
. The loop instruction doesn't loop by itself; you need to branch to it to actually create a loop.
The loop
statement is the opposite of the block
statement, in the sense that while branching to a loop
jumps to the beginning of the loop, branching to a block
jumps to the end of the block, that is, out of the block.
Try it
Syntax
wasm
;; label the loop so that it can be branched to
(loop $my_loop
;; branch to the loop.
;; most of the time you'll want to put this in an if statement and only branch on condition,
;; otherwise you have an infinite loop.
br $my_loop
)
Instruction | Binary opcode |
---|---|
loop |
0x03 |