666    ULong  n, bitoff, op;  in do_bt_G_E_tests()  local
679       bitoff = (myrandom() % 1600) - 800;  in do_bt_G_E_tests()
683          case 0: c = btsq_mem(block, bitoff); break;  in do_bt_G_E_tests()
684          case 1: c = btrq_mem(block, bitoff); break;  in do_bt_G_E_tests()
685          case 2: c = btcq_mem(block, bitoff); break;  in do_bt_G_E_tests()
686          case 3: c = btq_mem(block, bitoff); break;  in do_bt_G_E_tests()
690       carrydep = c ? (rol1(carrydep) ^ (Long)bitoff) : carrydep;  in do_bt_G_E_tests()
715       bitoff = (myrandom() % 1600) - 800;  in do_bt_G_E_tests()
719          case 0: c = btsl_mem(block, bitoff); break;  in do_bt_G_E_tests()
720          case 1: c = btrl_mem(block, bitoff); break;  in do_bt_G_E_tests()
721          case 2: c = btcl_mem(block, bitoff); break;  in do_bt_G_E_tests()
722          case 3: c = btl_mem(block, bitoff); break;  in do_bt_G_E_tests()
726       carrydep = c ? (rol1(carrydep) ^ (Long)(Int)bitoff) : carrydep;  in do_bt_G_E_tests()
751       bitoff = (myrandom() % 1600) - 800;  in do_bt_G_E_tests()
755          case 0: c = btsw_mem(block, bitoff); break;  in do_bt_G_E_tests()
756          case 1: c = btrw_mem(block, bitoff); break;  in do_bt_G_E_tests()
757          case 2: c = btcw_mem(block, bitoff); break;  in do_bt_G_E_tests()
758          case 3: c = btw_mem(block, bitoff); break;  in do_bt_G_E_tests()
762       carrydep = c ? (rol1(carrydep) ^ (Long)(Int)bitoff) : carrydep;  in do_bt_G_E_tests()