goto <label><label> is a label name. To define the location of the label, use the <label> name followed by a colon:
<label>:<label> then becomes associated the address of the following instruction. Labels can only be assigned one location in a method. On the other hand, a single <label> can be the target of multiple branch instructions.
Stack Before
Description After ... ...
Causes execution to branch to the instruction at the address (pc + branchoffset), where pc is the address of the goto opcode in the bytecode and branchoffset is a 16-bit signed integer parameter that immediately follows the goto opcode in the bytecode. In Jasmin, branchoffset is computed for you using the address associated with <label>.
Example
; ; This is like the Java code: ; while (true) { i++; } Label: incr 1 1 ; Increment local variable 1 by 1 goto Label ; jump back to Label
Bytecode Type
See Also Description u1 goto opcode = 0xA7 (167) s2 branchoffset
goto_w, jsr, jsr_w
Notes
Addresses are measured in bytes from the start of the bytecode - i.e. address 0 is the first byte in the bytecode of the currently executing method. The maximum address in a method is 65535.