INT 10 - Cirrus Logic BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. - SET MONITOR HORIZONTAL RETRACE FREQUENCY AH = 12h BL = A2h AL = retrace rate 00h standard VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. (31.5 kHz) 01h 8514-compatible (31.5 kHz and 35.5 kHz interlaced) 02h SuperVGA (31.5-35.1 kHz) 03h extended SuperVGA (31.5-35.5 kHz) 04h multi-frequency (31.5-37.8 kHz) 05h extended multi-frequency (31.5-48.0 kHz) 06h super multi-frequency (31.5-56.0 kHz) 07h extended super multi-frequency (31.5-64.0 kHz) Return: nothing SeeAlso: AH=12h/BL=9Ah,AH=12h/BL=A0h,AH=12h/BL=A4h