SIGN_BIT_S
vc.wp[1] = va.wp[1] & ~SIGN_BIT_S;
vc.wp[1] = va.wp[1] | SIGN_BIT_S;
vc.wp[1] = va.wp[1] ^ SIGN_BIT_S;
vc.wp[0] = va.wp[0] & ~SIGN_BIT_S;
vc.wp[1] = va.wp[1] & ~SIGN_BIT_S;
vc.wp[0] = va.wp[0] | SIGN_BIT_S;
vc.wp[1] = va.wp[1] | SIGN_BIT_S;
vc.wp[0] = va.wp[0] ^ SIGN_BIT_S;
vc.wp[1] = va.wp[1] ^ SIGN_BIT_S;
s_lo = regs->gpr[fc] & SIGN_BIT_S;
s_hi = current->thread.evr[fc] & SIGN_BIT_S;
s_lo = regs->gpr[fb] & SIGN_BIT_S;
s_lo = regs->gpr[fb] & SIGN_BIT_S;
s_hi = current->thread.evr[fb] & SIGN_BIT_S;
s_hi = current->thread.evr[fb] & SIGN_BIT_S;