get_y_rotate_matrix, get_y_rotate_matrix_f - Construct Y axis rotation matrices. Allegro game programming

       Construct  Y  axis  rotation  matrices,  storing  them in m. When applied to a point, these matrices will
       rotate it about the Y axis by the specified angle (given in binary, 256 degrees to a circle format).

       get_y_rotate_matrix, get_y_rotate_matrix_f - Construct Y axis rotation matrices. Allegro game programming
       library.

apply_matrix(3alleg4),            get_rotation_matrix(3alleg4),             get_x_rotate_matrix(3alleg4),
       get_z_rotate_matrix(3alleg4)

Allegro                                           version 4.4.3                     get_y_rotate_matrix(3alleg4)

#include<allegro.h>voidget_y_rotate_matrix(MATRIX*m,fixedr);voidget_y_rotate_matrix_f(MATRIX_f*m,floatr);