runtime: when passing registers between functions, pass values in O registers and read them from I registers
runtime: when passing registers between functions, pass values in O registers and read them from I registers

Change-Id: I70f7a70ea8eaddcc4527b2aaa1813a4294c39c3e

4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go,4ad/go