return-wide

Purpose

Return from a double-width (64-bit) value-returning method.

Op & Format	Mnemonic / Syntax	Arguments
10 11x	return-wide vAA	`A:` return value register-pair (8 bits)

The return type of the current method must be double or long.
A+1 must be a valid register index in the current stack frame (which includes A being valid).
Register vA must be the lower half of a register pair.
The type of vA must match the return type of the method.

If the method is synchronized, the object's monitor is released in a way similar to the monitor-exit instruction.
The stack frame of the current method invocation is removed from the stack. This includes all its registers becoming invalid.
If the stack is now empty, the current thread terminates.
Otherwise, the following happens:
- The stack frame that caused this method invocation becomes valid. This includes all its registers and their old values.
- Execution continues at the bytecode instruction immediately following the invoke instruction that caused this method invocation.
- The return value can be consumed by (exactly) the first instruction following the invoke-kind or invoke-kind/range instruction that caused this method invocation, and this instructions needs to be a move-result-wide instruction.

None.