Archipelago » qemu

                graphic_rotate = 90;

                break;

            case QEMU_OPTION_rotate:

                graphic_rotate = strtol(optarg, (char **) &optarg, 10);

                if (graphic_rotate != 0 && graphic_rotate != 90 &&

                    graphic_rotate != 180 && graphic_rotate != 270) {

                    fprintf(stderr,

                        "qemu: only 90, 180, 270 deg rotation is available\n");

                    exit(1);

                }