419                                UInt32 i2,  in mainGtU()  argument
428     AssertD(i1 != i2, "mainGtU");  in mainGtU()
431     c2 = block[i2];  in mainGtU()
435     i2++;  in mainGtU()
438     c2 = block[i2];  in mainGtU()
442     i2++;  in mainGtU()
445     c2 = block[i2];  in mainGtU()
449     i2++;  in mainGtU()
452     c2 = block[i2];  in mainGtU()
456     i2++;  in mainGtU()
459     c2 = block[i2];  in mainGtU()
463     i2++;  in mainGtU()
466     c2 = block[i2];  in mainGtU()
470     i2++;  in mainGtU()
473     c2 = block[i2];  in mainGtU()
477     i2++;  in mainGtU()
480     c2 = block[i2];  in mainGtU()
484     i2++;  in mainGtU()
487     c2 = block[i2];  in mainGtU()
491     i2++;  in mainGtU()
494     c2 = block[i2];  in mainGtU()
498     i2++;  in mainGtU()
501     c2 = block[i2];  in mainGtU()
505     i2++;  in mainGtU()
508     c2 = block[i2];  in mainGtU()
512     i2++;  in mainGtU()
519         c2 = block[i2];  in mainGtU()
523         s2 = quadrant[i2];  in mainGtU()
527         i2++;  in mainGtU()
530         c2 = block[i2];  in mainGtU()
534         s2 = quadrant[i2];  in mainGtU()
538         i2++;  in mainGtU()
541         c2 = block[i2];  in mainGtU()
545         s2 = quadrant[i2];  in mainGtU()
549         i2++;  in mainGtU()
552         c2 = block[i2];  in mainGtU()
556         s2 = quadrant[i2];  in mainGtU()
560         i2++;  in mainGtU()
563         c2 = block[i2];  in mainGtU()
567         s2 = quadrant[i2];  in mainGtU()
571         i2++;  in mainGtU()
574         c2 = block[i2];  in mainGtU()
578         s2 = quadrant[i2];  in mainGtU()
582         i2++;  in mainGtU()
585         c2 = block[i2];  in mainGtU()
589         s2 = quadrant[i2];  in mainGtU()
593         i2++;  in mainGtU()
596         c2 = block[i2];  in mainGtU()
600         s2 = quadrant[i2];  in mainGtU()
604         i2++;  in mainGtU()
608         if (i2 >= nblock)  in mainGtU()
609             i2 -= nblock;  in mainGtU()