case CSREG: addr = &Status; break;
case INVCP: addr = &invc_ptr; is64 = 1; break;
case ROREG: addr = &ram_offset; is64 = 1; break;
case CSREG: addr = &Status; break;
case INVCP: addr = &invc_ptr; is64 = 1; break;
case ROREG: addr = &ram_offset; is64 = 1; break;