Int 80  - Soundblaster Sbfm Driver - Set System Clock Rate                 [s]

   BX = 0003h
   AX = clock rate divisor (1193180 / desired frequency in Hertz)
       FFFFh to restore to 18.2 Hz

See Also: BX=0000h"SBFM",BX=0001h"SBFM",BX=0004h"SBFM"