#define TABMASK (4*QSIZ - 1) /* 4-quadrant sine table mask: x & TABMASK == x % 4QSIZ */
/* 1. QSIZLOG2 must be <= 13 in order to address the whole 4-quadrant sine table with a short since the max of a short is 1<<15 - 1. See get_sintab4() in "sintab.c". */