taglinefilesource code
r13180arch/alpha/kernel/process.cdump->regs[EF_S4]  = sw->r13;
r1390arch/alpha/kernel/ptrace.cSW_REG(    r12), SW_REG(    r13), SW_REG(    r14), SW_REG(   r15),
r13106arch/alpha/kernel/signal.csw->r13   = get_fs_quad(sc->sc_regs+13);
r13166arch/alpha/kernel/signal.cput_fs_quad(sw->r13  , sc->sc_regs+13);
r1358include/asm-alpha/ptrace.hunsigned long r13;