_REG_A7
u->uc_mcontext.__gregs[_REG_A7] = (int) sp;
uc.uc_mcontext.__gregs[_REG_A7] = sc->sc_sp;
mcp->__gregs[_REG_A7] = (__greg_t)sp;
#define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_A7])
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_A7])
gr[_REG_A7] = frame->f_regs[SP];
frame->f_regs[SP] = gr[_REG_A7];